首页 > 最新文献

2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)最新文献

英文 中文
Experimental Investigation of Non-contact 3D Sensors for Marine-growth Cleaning Operations 用于海洋生物清洁作业的非接触式三维传感器实验研究
Pub Date : 2022-12-05 DOI: 10.1109/IPAS55744.2022.10053020
Christian Mai, Jesper Liniger, A. Jensen, H. Sørensen, Simon Pedersen
Marine growth on submerged structures causes additional mechanical loads from drag and mass increases. In order to ensure structural integrity, regular inspection and cleaning procedures are carried out on the submerged structures, most commonly using remote-operated vehicles (ROVs). Often, the measurement methodology in these inspections is spot-checks using simple mechanical gauges, which yield a rough estimate of marine growth thickness. Expanding on this method, in order to optimize these inspection and cleaning procedures, modern methods for 3D surface measurement can be applied to increase inspection quality and ensure that superfluous cleaning is not carried out. This work investigates three state-of-the-art sensor technologies: a Time-of-Flight depth camera based on modulated visible blue laser illumination, a commercial stereo-vision solution based on visible-light sensors, and high-frequency imaging sonar. The sensors' performance has been compared in a laboratory environment to assess their suitability for use as a measurement device for marine-growth measurement in terms of accuracy, resolution, and noise/artifacts. It is concluded that the measurement fidelity of all evaluated sensors shows promise for the application, pending future evaluation in a real-world test.
海洋生物在水下结构上的生长会引起额外的机械载荷,包括阻力和质量的增加。为了确保结构的完整性,对水下结构进行定期检查和清洁程序,最常用的是使用遥控车辆(rov)。通常,这些检查的测量方法是使用简单的机械量规进行抽查,从而产生对海洋生长厚度的粗略估计。在此方法的基础上扩展,为了优化这些检测和清洗程序,可以应用现代3D表面测量方法来提高检测质量并确保不进行多余的清洗。这项工作研究了三种最先进的传感器技术:基于调制可见蓝色激光照明的飞行时间深度相机,基于可见光传感器的商业立体视觉解决方案,以及高频成像声纳。在实验室环境中对传感器的性能进行了比较,以评估其作为海洋生长测量的测量设备在精度、分辨率和噪声/伪影方面的适用性。结论是,所有评估传感器的测量保真度显示了应用前景,有待于未来在实际测试中的评估。
{"title":"Experimental Investigation of Non-contact 3D Sensors for Marine-growth Cleaning Operations","authors":"Christian Mai, Jesper Liniger, A. Jensen, H. Sørensen, Simon Pedersen","doi":"10.1109/IPAS55744.2022.10053020","DOIUrl":"https://doi.org/10.1109/IPAS55744.2022.10053020","url":null,"abstract":"Marine growth on submerged structures causes additional mechanical loads from drag and mass increases. In order to ensure structural integrity, regular inspection and cleaning procedures are carried out on the submerged structures, most commonly using remote-operated vehicles (ROVs). Often, the measurement methodology in these inspections is spot-checks using simple mechanical gauges, which yield a rough estimate of marine growth thickness. Expanding on this method, in order to optimize these inspection and cleaning procedures, modern methods for 3D surface measurement can be applied to increase inspection quality and ensure that superfluous cleaning is not carried out. This work investigates three state-of-the-art sensor technologies: a Time-of-Flight depth camera based on modulated visible blue laser illumination, a commercial stereo-vision solution based on visible-light sensors, and high-frequency imaging sonar. The sensors' performance has been compared in a laboratory environment to assess their suitability for use as a measurement device for marine-growth measurement in terms of accuracy, resolution, and noise/artifacts. It is concluded that the measurement fidelity of all evaluated sensors shows promise for the application, pending future evaluation in a real-world test.","PeriodicalId":322228,"journal":{"name":"2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116431914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Hybrid Watermarking Algorithm to Protect and Authenticate KhalifaSat Imagery using DWT-SVD and SHA3 Hash Key 基于DWT-SVD和SHA3哈希密钥的KhalifaSat图像保护与认证混合水印算法
Pub Date : 2022-12-05 DOI: 10.1109/IPAS55744.2022.10052903
A. Panthakkan, M. AnzarS., S. Al-Mansoori, Hussain Al-Ahmad
Using DWT-SVD and SHA3 Hash function, this research aims to develop an ownership protection and image authentication technique that embeds the watermark information and hash authentication key in a hybrid domain. The experiment was conducted with multispectral images from the KhalifaSat. The Performance of the proposed method is evaluated using wavelet domain signal to noise ratio (WSNR), structural similarity index measurement (SSIM) and peak signal to noise ratio (PSNR). To analyse the efficacy of the recovered watermark, two metrics are used: Normalized Correlation (NC) and Image Quality Index (IQI). The method presented is robust against many intended and unintended attacks. Without sacrificing transparency, our proposed watermarking approach meets the objectives of imperceptibility and robustness. It accurately detects the manipulated locations on the satellite image and is sensitive to even small changes.
利用DWT-SVD和SHA3哈希函数,开发了一种将水印信息和哈希认证密钥嵌入混合域的所有权保护和图像认证技术。实验是用哈利法卫星的多光谱图像进行的。采用小波域信噪比(WSNR)、结构相似度指数(SSIM)和峰值信噪比(PSNR)对该方法进行了性能评价。采用归一化相关(NC)和图像质量指数(IQI)两个指标来分析恢复水印的有效性。所提出的方法对许多有意和无意的攻击具有鲁棒性。在不牺牲透明度的前提下,我们提出的水印方法满足了不可感知性和鲁棒性的目标。它能准确地探测到卫星图像上被操纵的位置,对微小的变化也很敏感。
{"title":"Hybrid Watermarking Algorithm to Protect and Authenticate KhalifaSat Imagery using DWT-SVD and SHA3 Hash Key","authors":"A. Panthakkan, M. AnzarS., S. Al-Mansoori, Hussain Al-Ahmad","doi":"10.1109/IPAS55744.2022.10052903","DOIUrl":"https://doi.org/10.1109/IPAS55744.2022.10052903","url":null,"abstract":"Using DWT-SVD and SHA3 Hash function, this research aims to develop an ownership protection and image authentication technique that embeds the watermark information and hash authentication key in a hybrid domain. The experiment was conducted with multispectral images from the KhalifaSat. The Performance of the proposed method is evaluated using wavelet domain signal to noise ratio (WSNR), structural similarity index measurement (SSIM) and peak signal to noise ratio (PSNR). To analyse the efficacy of the recovered watermark, two metrics are used: Normalized Correlation (NC) and Image Quality Index (IQI). The method presented is robust against many intended and unintended attacks. Without sacrificing transparency, our proposed watermarking approach meets the objectives of imperceptibility and robustness. It accurately detects the manipulated locations on the satellite image and is sensitive to even small changes.","PeriodicalId":322228,"journal":{"name":"2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)","volume":"Five 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130784821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Benchmark Database for Animal Re-Identification and Tracking 动物再识别与追踪基准数据库
Pub Date : 2022-12-05 DOI: 10.1109/IPAS55744.2022.10052988
L. Kuncheva, Francis Williams, Samuel L. Hennessey, Juan José Rodríguez Diez
While there are multiple sources of annotated images and videos for human and vehicle re-identification, databases for individual animal recognition are still in demand. We present a database containing five annotated video clips each containing between 9 and 27 identities. The overall number of individual animals is 20,490, and the total number of classes is 93. The database can be used for testing novel methods for animal re-identification, object detection and tracking. The main challenge of the database is that multiple animals are present in the same video frame, leading to problems with occlusion and noisy, cluttered bounding boxes. To set-up a benchmark on individual animal recognition, we trained and tested 26 classification methods for the five videos and three feature representations. We also report results with state-of-the-art deep learning methods for object detection (MMDet) and tracking (Uni-Track).
虽然有多种用于人类和车辆再识别的注释图像和视频来源,但仍然需要单个动物识别的数据库。我们提出了一个包含五个注释视频片段的数据库,每个视频片段包含9到27个身份。动物个体总数为20490只,类总数为93个。该数据库可用于测试动物再识别、目标检测和跟踪的新方法。该数据库的主要挑战是多个动物出现在同一视频帧中,导致遮挡和嘈杂、混乱的边界框问题。为了建立个体动物识别的基准,我们对5个视频和3个特征表示训练和测试了26种分类方法。我们还报告了用于目标检测(MMDet)和跟踪(Uni-Track)的最先进的深度学习方法的结果。
{"title":"A Benchmark Database for Animal Re-Identification and Tracking","authors":"L. Kuncheva, Francis Williams, Samuel L. Hennessey, Juan José Rodríguez Diez","doi":"10.1109/IPAS55744.2022.10052988","DOIUrl":"https://doi.org/10.1109/IPAS55744.2022.10052988","url":null,"abstract":"While there are multiple sources of annotated images and videos for human and vehicle re-identification, databases for individual animal recognition are still in demand. We present a database containing five annotated video clips each containing between 9 and 27 identities. The overall number of individual animals is 20,490, and the total number of classes is 93. The database can be used for testing novel methods for animal re-identification, object detection and tracking. The main challenge of the database is that multiple animals are present in the same video frame, leading to problems with occlusion and noisy, cluttered bounding boxes. To set-up a benchmark on individual animal recognition, we trained and tested 26 classification methods for the five videos and three feature representations. We also report results with state-of-the-art deep learning methods for object detection (MMDet) and tracking (Uni-Track).","PeriodicalId":322228,"journal":{"name":"2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134222954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Panel discussion I 小组讨论一
Pub Date : 2022-12-05 DOI: 10.1109/ipas55744.2022.10052811
{"title":"Panel discussion I","authors":"","doi":"10.1109/ipas55744.2022.10052811","DOIUrl":"https://doi.org/10.1109/ipas55744.2022.10052811","url":null,"abstract":"","PeriodicalId":322228,"journal":{"name":"2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130974087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Combined Acute and Chronic Risk Assessment Rolling Window for Type 1 Diabetes 1型糖尿病急慢性联合风险评估滚动窗口
Pub Date : 2022-12-05 DOI: 10.1109/IPAS55744.2022.10052880
Faizan Munawar, J. Donovan, Etain Kiely, Konrad Mulrennan
Monitoring the control of persons with type 1 diabetes based on their history of blood glucose levels is essential for self-management. Persons with diabetes must keep their blood glucose levels in a very narrow glycaemic region (70–180 mg/dl) to avoid hypoglycaemia and hyperglycaemia. An extended period of time in the hypoglycaemic or hyperglycaemic region can lead to short-term and long-term complications, respectively. Many measures have been proposed for the management of diabetes, such as the Glucose Management Indicator (GMI) and the Average Daily Risk Range (ADRR). A major drawback of these measures is that they only address acute (ADRR) or chronic (GMI) complications and provide no information on the trend. This paper proposes a rolling window to calculate ADRR and GMI. Calculating ADRR and GMI using a rolling window results in new data, which provide information on the efficacy of self-management of an individual and their risk trend. Use of a rolling window for the risk analysis provides novel information about the glycaemic variability and can be used for improved personal diabetes management plans. Furthermore, ADRR and GMI are combined to propose four new risk levels, which represents the lowest to the highest probable risk of complications. The analysis was performed on 12 subjects from the OhioT1DM data set. The results presented include a detailed examination and summary of all risks to the subjects and the information about their ADRR and GMI trend.
根据1型糖尿病患者的血糖水平监测控制对自我管理至关重要。糖尿病患者必须将血糖水平控制在非常窄的血糖区(70-180 mg/dl),以避免低血糖和高血糖。长期处于低血糖区或高血糖区分别可导致短期和长期并发症。许多措施已经被提出用于糖尿病的管理,如葡萄糖管理指标(GMI)和平均每日风险范围(ADRR)。这些措施的一个主要缺点是它们只针对急性(ADRR)或慢性(GMI)并发症,而不提供有关趋势的信息。本文提出了一种计算ADRR和GMI的滚动窗口。使用滚动窗口计算ADRR和GMI可以得到新的数据,这些数据提供了个人自我管理有效性及其风险趋势的信息。使用滚动窗口进行风险分析提供了关于血糖变异性的新信息,可用于改进个人糖尿病管理计划。此外,ADRR和GMI结合起来提出了四个新的风险水平,代表了最低到最高的并发症可能风险。对来自OhioT1DM数据集的12名受试者进行分析。提交的结果包括对受试者的所有风险的详细检查和总结,以及他们的ADRR和GMI趋势的信息。
{"title":"A Combined Acute and Chronic Risk Assessment Rolling Window for Type 1 Diabetes","authors":"Faizan Munawar, J. Donovan, Etain Kiely, Konrad Mulrennan","doi":"10.1109/IPAS55744.2022.10052880","DOIUrl":"https://doi.org/10.1109/IPAS55744.2022.10052880","url":null,"abstract":"Monitoring the control of persons with type 1 diabetes based on their history of blood glucose levels is essential for self-management. Persons with diabetes must keep their blood glucose levels in a very narrow glycaemic region (70–180 mg/dl) to avoid hypoglycaemia and hyperglycaemia. An extended period of time in the hypoglycaemic or hyperglycaemic region can lead to short-term and long-term complications, respectively. Many measures have been proposed for the management of diabetes, such as the Glucose Management Indicator (GMI) and the Average Daily Risk Range (ADRR). A major drawback of these measures is that they only address acute (ADRR) or chronic (GMI) complications and provide no information on the trend. This paper proposes a rolling window to calculate ADRR and GMI. Calculating ADRR and GMI using a rolling window results in new data, which provide information on the efficacy of self-management of an individual and their risk trend. Use of a rolling window for the risk analysis provides novel information about the glycaemic variability and can be used for improved personal diabetes management plans. Furthermore, ADRR and GMI are combined to propose four new risk levels, which represents the lowest to the highest probable risk of complications. The analysis was performed on 12 subjects from the OhioT1DM data set. The results presented include a detailed examination and summary of all risks to the subjects and the information about their ADRR and GMI trend.","PeriodicalId":322228,"journal":{"name":"2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133342824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative Studies on Similarity Distances for Remote Sensing Image Classification 遥感影像分类相似距离的比较研究
Pub Date : 2022-12-05 DOI: 10.1109/IPAS55744.2022.10052824
Omid Ghozatlou, M. Datcu
Scene classification is one of the most important tasks in the remote sensing field. In general, remotely sensed data comprises targets of different nature with many detailed classes. Therefore, the classification of patches in a satellite scene is a challenging issue. To address the problem, the preferred alternative is to transform to polar coordinates and analyze angular distances. Prior works have so far considered angular distances between points, while ignoring that the target class is not a point, but a distribution. In this paper, we take advantage of this critical fact by using a point-to-probability distribution measure rather than an $ell_{n}$ norm. In this paper, two similarity measures (Euclidean and Mahalanobis) in two different feature space are experimentally investigated through some remote sensing datasets.
场景分类是遥感领域的重要任务之一。一般来说,遥感数据包括不同性质的目标和许多详细的类别。因此,卫星场景中斑块的分类是一个具有挑战性的问题。为了解决这个问题,首选的替代方法是转换为极坐标并分析角距离。到目前为止,之前的工作考虑了点之间的角距离,而忽略了目标类不是一个点,而是一个分布。在本文中,我们通过使用点到概率分布度量而不是$ell_{n}$范数来利用这一关键事实。本文通过一些遥感数据集,实验研究了两个不同特征空间中的两种相似性度量(欧几里得和马氏)。
{"title":"Comparative Studies on Similarity Distances for Remote Sensing Image Classification","authors":"Omid Ghozatlou, M. Datcu","doi":"10.1109/IPAS55744.2022.10052824","DOIUrl":"https://doi.org/10.1109/IPAS55744.2022.10052824","url":null,"abstract":"Scene classification is one of the most important tasks in the remote sensing field. In general, remotely sensed data comprises targets of different nature with many detailed classes. Therefore, the classification of patches in a satellite scene is a challenging issue. To address the problem, the preferred alternative is to transform to polar coordinates and analyze angular distances. Prior works have so far considered angular distances between points, while ignoring that the target class is not a point, but a distribution. In this paper, we take advantage of this critical fact by using a point-to-probability distribution measure rather than an $ell_{n}$ norm. In this paper, two similarity measures (Euclidean and Mahalanobis) in two different feature space are experimentally investigated through some remote sensing datasets.","PeriodicalId":322228,"journal":{"name":"2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132126845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DUNE: Deep UNcertainty Estimation for tracked visual features 跟踪视觉特征的深度不确定性估计
Pub Date : 2022-12-05 DOI: 10.1109/IPAS55744.2022.10052984
Katia Sousa Lillo, Andrea de Maio, S. Lacroix, Amaury Nègre, M. Rombaut, Nicolas Marchand, N. Vercier
Uncertainty estimation of visual feature is essential for vision-based systems, such as visual navigation. We show that errors inherent to visual tracking, in particular using KLT tracker, can be learned using a probabilistic loss function to estimate the covariance matrix on each tracked feature position. The proposed system is trained and evaluated on synthetic data, as well as on real data, highlighting good results in comparison to the state of the art. The benefits of the tracking uncertainty estimates are illustrated for visual motion estimation.
视觉特征的不确定性估计对于视觉导航等基于视觉的系统至关重要。我们表明,视觉跟踪固有的误差,特别是使用KLT跟踪器,可以使用概率损失函数来估计每个跟踪特征位置的协方差矩阵来学习。所提议的系统在合成数据和真实数据上进行了训练和评估,与目前的技术水平相比,突出了良好的结果。在视觉运动估计中说明了跟踪不确定性估计的优点。
{"title":"DUNE: Deep UNcertainty Estimation for tracked visual features","authors":"Katia Sousa Lillo, Andrea de Maio, S. Lacroix, Amaury Nègre, M. Rombaut, Nicolas Marchand, N. Vercier","doi":"10.1109/IPAS55744.2022.10052984","DOIUrl":"https://doi.org/10.1109/IPAS55744.2022.10052984","url":null,"abstract":"Uncertainty estimation of visual feature is essential for vision-based systems, such as visual navigation. We show that errors inherent to visual tracking, in particular using KLT tracker, can be learned using a probabilistic loss function to estimate the covariance matrix on each tracked feature position. The proposed system is trained and evaluated on synthetic data, as well as on real data, highlighting good results in comparison to the state of the art. The benefits of the tracking uncertainty estimates are illustrated for visual motion estimation.","PeriodicalId":322228,"journal":{"name":"2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117036629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Real-time Powered Wheelchair Assistive Navigation System Based on Intelligent Semantic Segmentation for Visually Impaired Users 基于智能语义分割的视障用户动力轮椅实时辅助导航系统
Pub Date : 2022-12-05 DOI: 10.1109/IPAS55744.2022.10053051
Elhassan Mohamed, K. Sirlantzis, G. Howells
People with movement disabilities may find powered wheelchair driving a challenging task due to their comorbidities. Certain visually impaired persons with mobility disabilities are not prescribed a powered wheelchair because of their sight condition. However, powered wheelchairs are essential to the majority of these disabled users for commuting and social interaction. It is vital for their independence and wellbeing. In this paper, we propose to use a semantic segmentation (SS) system based on deep learning algorithms to provide environmental cues and information to visually impaired wheelchair users to aid with the navigation process. The system classifies the objects of the indoor environment and presents the annotated output on a display customised to the user's condition. The user can select a target object, for which the system can display the estimated distance from the current position of the wheelchair. The system runs in real-time, using a depth camera installed on the wheelchair, and it displays the scene in front of the wheelchair with every pixel annotated with distinguishable colour to represent the different components of the environment along with the distance to the target object. Our system has been designed, implemented and deployed on a real powered wheelchair for practical evaluation. The proposed system helped the users to estimate more accurately the distance to the target objects with a relative error of 19.8% and 18.4% for the conditions of a) semi-neglect and b) short-sightedness, respectively, compared to errors of 47.8% and 5.6% without the SS system. In our experiments, healthy participants were put in simulated conditions representing the above visual impairments using instruments commonly used in medical research for this purpose. Finally, our system helps to visualise, on the display, hidden areas of the environment and blind spots that visually impaired users would not be able to see without it.
有运动障碍的人可能会发现,由于他们的合并症,驾驶电动轮椅是一项具有挑战性的任务。某些有行动障碍的视障人士因视力问题而没有获安排电动轮椅。然而,电动轮椅对大多数残疾用户来说是必不可少的,用于通勤和社交。这对他们的独立和幸福至关重要。在本文中,我们建议使用基于深度学习算法的语义分割(SS)系统为视障轮椅使用者提供环境线索和信息,以帮助他们进行导航过程。该系统对室内环境中的物体进行分类,并根据用户的情况在显示屏上显示带有注释的输出。用户可以选择一个目标物体,系统可以显示距离轮椅当前位置的估计距离。该系统使用安装在轮椅上的深度摄像头实时运行,并在轮椅前显示场景,每个像素都用可区分的颜色标注,以代表环境的不同组成部分以及与目标物体的距离。我们的系统已经设计、实现并部署在一个真实的动力轮椅上进行实际评估。在a)半忽略和b)近视眼条件下,系统的相对误差分别为19.8%和18.4%,而非SS系统的相对误差分别为47.8%和5.6%。在我们的实验中,使用医学研究中常用的仪器,将健康参与者置于代表上述视觉障碍的模拟条件下。最后,我们的系统有助于在显示器上显示环境的隐藏区域和盲点,如果没有它,视障用户将无法看到这些区域和盲点。
{"title":"Real-time Powered Wheelchair Assistive Navigation System Based on Intelligent Semantic Segmentation for Visually Impaired Users","authors":"Elhassan Mohamed, K. Sirlantzis, G. Howells","doi":"10.1109/IPAS55744.2022.10053051","DOIUrl":"https://doi.org/10.1109/IPAS55744.2022.10053051","url":null,"abstract":"People with movement disabilities may find powered wheelchair driving a challenging task due to their comorbidities. Certain visually impaired persons with mobility disabilities are not prescribed a powered wheelchair because of their sight condition. However, powered wheelchairs are essential to the majority of these disabled users for commuting and social interaction. It is vital for their independence and wellbeing. In this paper, we propose to use a semantic segmentation (SS) system based on deep learning algorithms to provide environmental cues and information to visually impaired wheelchair users to aid with the navigation process. The system classifies the objects of the indoor environment and presents the annotated output on a display customised to the user's condition. The user can select a target object, for which the system can display the estimated distance from the current position of the wheelchair. The system runs in real-time, using a depth camera installed on the wheelchair, and it displays the scene in front of the wheelchair with every pixel annotated with distinguishable colour to represent the different components of the environment along with the distance to the target object. Our system has been designed, implemented and deployed on a real powered wheelchair for practical evaluation. The proposed system helped the users to estimate more accurately the distance to the target objects with a relative error of 19.8% and 18.4% for the conditions of a) semi-neglect and b) short-sightedness, respectively, compared to errors of 47.8% and 5.6% without the SS system. In our experiments, healthy participants were put in simulated conditions representing the above visual impairments using instruments commonly used in medical research for this purpose. Finally, our system helps to visualise, on the display, hidden areas of the environment and blind spots that visually impaired users would not be able to see without it.","PeriodicalId":322228,"journal":{"name":"2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117236849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Liver Segmentation in Time-resolved C-arm CT Volumes Reconstructed from Dynamic Perfusion Scans using Time Separation Technique 时间分离技术在动态灌注扫描重建时间分辨c臂CT体积中的肝脏分割
Pub Date : 2022-12-05 DOI: 10.1109/IPAS55744.2022.10052849
S. Chatterjee, Hana Haselji'c, R. Frysch, V. Kulvait, V. Semshchikov, B. Hensen, F. Wacker, Inga Brüsch, T. Werncke, O. Speck, A. Nürnberger, G. Rose
Perfusion imaging is a valuable tool for diagnosing and treatment planning for liver tumours. The time separation technique (TST) has been successfully used for modelling C-arm cone-beam computed tomography (CBCT) perfusion data. The reconstruction can be accompanied by the segmentation of the liver - for better visualisation and for generating comprehensive perfusion maps. Recently introduced Turbolift learning has been seen to perform well while working with TST reconstructions, but has not been explored for the time-resolved volumes (TRV) estimated out of TST reconstructions. The segmentation of the TRVs can be useful for tracking the movement of the liver over time. This research explores this possibility by training the multi-scale attention UNet of Turbolift learning at its third stage on the TRVs and shows the robustness of Turbolift learning since it can even work efficiently with the TRVs, resulting in a Dice score of $0.864pm 0.004$.
灌注显像是肝脏肿瘤诊断和治疗规划的重要工具。时间分离技术(TST)已成功地用于模拟c臂锥束计算机断层扫描(CBCT)灌注数据。重建可以伴随着肝脏的分割-为了更好的可视化和生成全面的灌注图。最近引入的Turbolift学习在TST重建中表现良好,但尚未对TST重建中估计的时间分辨体积(TRV)进行探索。trv的分割可用于跟踪肝脏随时间的运动。本研究通过在trv上训练Turbolift学习的第三阶段的多尺度注意力UNet来探索这种可能性,并显示了Turbolift学习的鲁棒性,因为它甚至可以有效地与trv一起工作,导致Dice得分为0.864pm 0.004$。
{"title":"Liver Segmentation in Time-resolved C-arm CT Volumes Reconstructed from Dynamic Perfusion Scans using Time Separation Technique","authors":"S. Chatterjee, Hana Haselji'c, R. Frysch, V. Kulvait, V. Semshchikov, B. Hensen, F. Wacker, Inga Brüsch, T. Werncke, O. Speck, A. Nürnberger, G. Rose","doi":"10.1109/IPAS55744.2022.10052849","DOIUrl":"https://doi.org/10.1109/IPAS55744.2022.10052849","url":null,"abstract":"Perfusion imaging is a valuable tool for diagnosing and treatment planning for liver tumours. The time separation technique (TST) has been successfully used for modelling C-arm cone-beam computed tomography (CBCT) perfusion data. The reconstruction can be accompanied by the segmentation of the liver - for better visualisation and for generating comprehensive perfusion maps. Recently introduced Turbolift learning has been seen to perform well while working with TST reconstructions, but has not been explored for the time-resolved volumes (TRV) estimated out of TST reconstructions. The segmentation of the TRVs can be useful for tracking the movement of the liver over time. This research explores this possibility by training the multi-scale attention UNet of Turbolift learning at its third stage on the TRVs and shows the robustness of Turbolift learning since it can even work efficiently with the TRVs, resulting in a Dice score of $0.864pm 0.004$.","PeriodicalId":322228,"journal":{"name":"2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124035400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Continual Learning in an Industrial Scenario: Equipment Classification on Edge Devices 工业场景中的持续学习:边缘设备的设备分类
Pub Date : 2022-12-05 DOI: 10.1109/IPAS55744.2022.10053047
A. Morgado, R. Carvalho, Catarina Andrade, Telmo Barbosa, Gonçalo Santos, M.J.M. Vasconcelos
The ability to incrementally learn to categorize objects is a key feature for a personalized system in real-world applications. The major constraint for such scenario relies on the catastrophic forgetting problem, which negatively impacts the performance of the models on previously learned representations. In this work, we developed an equipment classification model to be deployed on edge devices by applying regularization and memory-based class-incremental strategies, such that it can detect new classes while preserving its ability to detect previously known classes, mitigating the forgetting phenomenon. The strategies were tested on three datasets: CIFAR100 to validate the implementation, Stanford Dogs to ensure the reliability of the results as it is a more representative dataset, and SINATRA, which is the work's industrial dataset for equipment recognition. Experimental results on these datasets show that the Experience Replay strategy performed better. For the SINATRA dataset, average accuracy values of 95.57% and of 100% were achieved for Águas e Energias do Porto and Plastaze subsets, respectively. The outcomes of this work proved that by retaining only a limited number of exemplars from old classes, it is possible to update a pre-existing system to classify new devices in a shorter period and avoid catastrophic forgetting.
增量学习对象分类的能力是实际应用程序中个性化系统的一个关键特性。这种场景的主要约束依赖于灾难性遗忘问题,这对模型对先前学习表征的性能产生了负面影响。在这项工作中,我们开发了一个设备分类模型,通过应用正则化和基于记忆的类别增量策略部署在边缘设备上,这样它就可以检测新类别,同时保留检测先前已知类别的能力,从而减轻遗忘现象。这些策略在三个数据集上进行了测试:CIFAR100用于验证实施,Stanford Dogs用于确保结果的可靠性,因为它是一个更具代表性的数据集,以及SINATRA,这是该工作用于设备识别的工业数据集。在这些数据集上的实验结果表明,体验重放策略具有更好的性能。对于SINATRA数据集,Águas e Energias do Porto和Plastaze子集的平均准确率分别达到95.57%和100%。这项工作的结果证明,通过仅保留旧类中有限数量的样本,可以在更短的时间内更新现有系统以对新设备进行分类,并避免灾难性的遗忘。
{"title":"Continual Learning in an Industrial Scenario: Equipment Classification on Edge Devices","authors":"A. Morgado, R. Carvalho, Catarina Andrade, Telmo Barbosa, Gonçalo Santos, M.J.M. Vasconcelos","doi":"10.1109/IPAS55744.2022.10053047","DOIUrl":"https://doi.org/10.1109/IPAS55744.2022.10053047","url":null,"abstract":"The ability to incrementally learn to categorize objects is a key feature for a personalized system in real-world applications. The major constraint for such scenario relies on the catastrophic forgetting problem, which negatively impacts the performance of the models on previously learned representations. In this work, we developed an equipment classification model to be deployed on edge devices by applying regularization and memory-based class-incremental strategies, such that it can detect new classes while preserving its ability to detect previously known classes, mitigating the forgetting phenomenon. The strategies were tested on three datasets: CIFAR100 to validate the implementation, Stanford Dogs to ensure the reliability of the results as it is a more representative dataset, and SINATRA, which is the work's industrial dataset for equipment recognition. Experimental results on these datasets show that the Experience Replay strategy performed better. For the SINATRA dataset, average accuracy values of 95.57% and of 100% were achieved for Águas e Energias do Porto and Plastaze subsets, respectively. The outcomes of this work proved that by retaining only a limited number of exemplars from old classes, it is possible to update a pre-existing system to classify new devices in a shorter period and avoid catastrophic forgetting.","PeriodicalId":322228,"journal":{"name":"2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131455177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1