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2020 IEEE 5th International Conference on Image, Vision and Computing (ICIVC)最新文献

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Super-Resolution Reconstruction Algorithm of Target Image Based on Learning Background 基于学习背景的目标图像超分辨率重建算法
Pub Date : 2020-07-01 DOI: 10.1109/ICIVC50857.2020.9177444
Shuning Li, Huasheng Zhu, Kaiwen Zha, Wei Li
In the realistic video monitoring environment, the traditional super-resolution reconstruction technique based on prior knowledge is not suitable for monitoring the super-resolution reconstruction of the image. In this paper, a super-resolution reconstruction algorithm of target image based on learning background is proposed. The first part of the algorithm is to design a non-manifolds consistency algorithm for super-resolution reconstruction of the whole video surveillance image. The second part of the algorithm, from video surveillance images in the background, to select the characteristics significantly, and the relatively fixed background. And then to study the background, study a mapping function can improve image quality. Finally, the mapping function to restoration image of interested target, so that we can better recover the structure and texture of target image details. The experimental results show that the proposed algorithm improves both the objective evaluation index and the subjective visual effect.
在现实的视频监控环境中,传统的基于先验知识的超分辨率重建技术不适合监控图像的超分辨率重建。本文提出了一种基于学习背景的目标图像超分辨率重建算法。算法的第一部分是设计一种非流形一致性算法,用于整个视频监控图像的超分辨率重建。算法的第二部分,从视频监控图像的背景中,选择特征显著,且背景相对固定的图像。然后对背景进行研究,研究一种可以提高图像质量的映射函数。最后,利用映射函数对感兴趣的目标图像进行恢复,从而更好地恢复目标图像的结构和纹理细节。实验结果表明,该算法既提高了客观评价指标,又提高了主观视觉效果。
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引用次数: 0
Bus Signal Priority Control Method Based on Video Detection Technology at Urban Intersection 基于视频检测技术的城市交叉口公交信号优先控制方法
Pub Date : 2020-07-01 DOI: 10.1109/ICIVC50857.2020.9177475
Shan Li, Huizhi Xu, Zijun Liang, Chengyuan Mao
In order to improve the traffic efficiency of public transportation, alleviate the urban traffic congestion and improve the overall traffic efficiency. On the one hand, this paper proposed a method for identifying bus vehicles with signal priority based on video detectors, which solved the shortcomings of current GPS signal priority control methods such as inaccurate GPS positioning, unstable wireless communication transmission signals, and high construction costs. On the other hand, the algorithm logic of bus signal priority control was proposed. The algorithm took average passenger delay as the optimization index, realizes the signal priority of bus at urban intersections. At the same time, considered reducing the negative impact of public transport signal priority on non-priority social vehicles. Finally, the simulation test of actual urban intersection cases was carried out by using VISSIM micro simulation software. The simulation results showed that, compared with the traditional signal control method, considered the bus signal priority signal timing scheme can effectively reduce the average passenger delay and vehicle queue length, and further improve the traffic efficiency of the intersection.
为了提高公共交通的通行效率,缓解城市交通拥堵,提高整体交通效率。一方面,本文提出了一种基于视频探测器的公交车辆信号优先识别方法,解决了目前GPS信号优先控制方法GPS定位不准确、无线通信传输信号不稳定、建设成本高等缺点。另一方面,提出了总线信号优先控制的算法逻辑。该算法以平均乘客延误为优化指标,实现了城市交叉口公交信号优先。同时,考虑减少公共交通信号优先对非优先社会车辆的负面影响。最后,利用VISSIM微仿真软件对实际城市交叉口案例进行仿真试验。仿真结果表明,与传统的信号控制方法相比,考虑公交信号优先的信号配时方案能有效降低平均乘客延误和车辆排队长度,进一步提高交叉口的交通效率。
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引用次数: 1
A Technology for Automatically Counting Bus Passenger Based on YOLOv2 and MIL Algorithm 基于YOLOv2和MIL算法的公交车乘客自动计数技术
Pub Date : 2020-07-01 DOI: 10.1109/ICIVC50857.2020.9177434
Leyuan Liu, Jian He, Yibin Hou, Cheng Zhang
The bus passenger data are very important for urban bus dispatching management. When passengers get on or off the bus, they often hide from each other. It is a great challenge for automatically accounting passengers through camera. The traditionally video-based target detection algorithm or target tracking algorithm is difficult to accurately count the number of passenger on and off. In this paper, the YOLOv2 algorithm is combined with the MIL tracker so as to real-time account the number of passengers in the bus surveillance video. Experiment shows that the accuracy rate of bus passenger statistics proposed in this paper reaches over 99%, and it proves that our method has good real-time and high accuracy.
公交乘客数据是城市公交调度管理的重要数据。当乘客上下车时,他们经常躲着对方。通过摄像头对乘客进行自动计费是一个很大的挑战。传统的基于视频的目标检测算法或目标跟踪算法难以准确统计上下车人数。本文将YOLOv2算法与MIL跟踪器相结合,实现公交车监控视频中乘客人数的实时统计。实验表明,本文提出的公交乘客统计准确率达到99%以上,证明了本文方法实时性好,准确率高。
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引用次数: 2
EDLLIE-Net: Enhanced Deep Convolutional Networks for Low-Light Image Enhancement EDLLIE-Net:用于微光图像增强的增强深度卷积网络
Pub Date : 2020-07-01 DOI: 10.1109/ICIVC50857.2020.9177454
Xue Ke, Wei Lin, Gaojie Chen, Quan Chen, Xianzhi Qi, Jie Ma
Low-light image enhancement technology has been developed in recent years. However, most existing related methods need to adjust too many arguments or performs unstably when the environment differs greatly. In our paper, we propose a novel low-light image enhancement method named enhanced deep convolutional low-light image enhancement network (EDLLIE-Net) to address these problems. Firstly, our proposed method extracts multi-scale feature map, which can improve the utilization of context information. Subsequently, our proposed method rescales the feature map by attention mechanism to perceive the most useful information and characteristics. Finally, our proposed method uses encode-decode and residual-learning architecture to obtain the normal image from low-light image. To prove the effectiveness of our proposed model, we evaluate it from two aspects. On one hand, we show EDLLIE-Net can not only handle different dark scenes effectively but also achieve better performance than other representative methods by common metric judgement. On the other hand, a novel evaluation method by combining enhanced result and high-level vision task is proposed, we show our proposed method can gain the higher improvement degree for high-level vision tasks.
微光图像增强技术是近年来发展起来的。然而,现有的大多数相关方法在环境差异很大时需要调整太多的参数或执行不稳定。在本文中,我们提出了一种新的弱光图像增强方法——增强深度卷积弱光图像增强网络(EDLLIE-Net)来解决这些问题。首先,该方法提取了多尺度特征映射,提高了上下文信息的利用率;随后,我们提出的方法通过注意机制重新缩放特征映射,以感知最有用的信息和特征。最后,我们提出的方法采用编解码和残差学习架构从弱光图像中获得正常图像。为了证明该模型的有效性,我们从两个方面对其进行了评价。一方面,我们证明了EDLLIE-Net不仅可以有效地处理不同的黑暗场景,而且通过普通的度量判断比其他代表性方法取得了更好的性能。另一方面,提出了一种将增强结果与高阶视觉任务相结合的评价方法,表明该方法对高阶视觉任务有较高的改进程度。
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引用次数: 8
Research on the Influence of Icon Shape Complexity and Composition on Visual Search Based on Military Geographic Intelligence System 基于军事地理情报系统的图标形状复杂度和组成对视觉搜索的影响研究
Pub Date : 2020-07-01 DOI: 10.1109/ICIVC50857.2020.9177485
Xian Li, Haiyan Wang, Junkai Shao
This article discusses the influence of icon shape complexity and composition on icon search in military geographical intelligence system. We designed an experiment to explore the influence of icon shape complexity and composition on icon search efficiency in military geographic intelligence system (GIS). The reaction time and accuracy are used in the experiment to reflect people's search efficiency under different experimental conditions. The experimental results provide a scientific reference for the design of military GIS interface by analyzing the effect of different icon shapes and icon presentation on the visual search performance of military GIS interface. Through experiments, it is found that when the icon shape complexity level is the highest or the lowest, it shows poor search performance; when the complexity level is H3, it shows the best search performance; the icon composition does not affect the search performance of the icon on the map background. Significant, but when the complexity level is H2 and H4, there is interaction between different icon composition. This design will provide a reference for the design of GIS interface icons. The experimental results provide a scientific reference for the design of military GIS interface.
本文讨论了军事地理情报系统中图标形状复杂性和组成对图标搜索的影响。为探讨军事地理情报系统(GIS)中图标形状复杂度和组成对图标搜索效率的影响,设计了一项实验。实验中使用反应时间和准确度来反映人们在不同实验条件下的搜索效率。实验结果分析了不同图标形状和图标呈现方式对军用GIS界面视觉搜索性能的影响,为军用GIS界面设计提供了科学参考。通过实验发现,当图标形状复杂程度最高或最低时,其搜索性能较差;当复杂度等级为H3时,搜索性能最佳;图标的组成不影响图标在地图背景上的搜索性能。但当复杂程度为H2和H4时,不同的图标构成之间存在交互作用。本设计将为GIS界面图标的设计提供参考。实验结果为军用GIS界面设计提供了科学参考。
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引用次数: 0
Image Transmission via LoRa Networks – A Survey LoRa网络图像传输综述
Pub Date : 2020-07-01 DOI: 10.1109/ICIVC50857.2020.9177489
Anestis Staikopoulos, V. Kanakaris, G. Papakostas
Long Range (Lora) technology is assumed to be the subsequent of the wireless communication for the Internet of Things (IoT). Although LoRa provides emulative characteristics, such as a wider cover range, lower expenditure and decreased energy consumption, the usable narrow bandwidth for physical layer modulation in LoRa makes it inapplicable for high bit rate data transmission from devices like visual sensors. Nevertheless, because data from images are larger than those that origin from sensors, one of the main problems of visual IoT is the efficiency of image transmission in networks where bandwidth is narrow. This paper, aims at reviewing the available methods applied to transfer images via LoRa infrastructure, for the first time in the literature. The limitations of each method are pointed out and the challenges that need to be handled in the future are also defined towards establishing a reliable image transfer over a LoRa network.
远程(Lora)技术被认为是物联网(IoT)无线通信的后续技术。尽管LoRa提供了模拟特性,例如更宽的覆盖范围、更低的开销和更低的能耗,但LoRa中物理层调制可用的窄带宽使其不适用于来自视觉传感器等设备的高比特率数据传输。然而,由于来自图像的数据比来自传感器的数据大,视觉物联网的主要问题之一是在带宽较窄的网络中图像传输的效率。本文旨在回顾文献中第一次通过LoRa基础设施传输图像的可用方法。指出了每种方法的局限性,并确定了在LoRa网络上建立可靠的图像传输需要解决的挑战。
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引用次数: 10
Human Fall Detection Algorithm Based on YOLOv3 基于YOLOv3的人体跌倒检测算法
Pub Date : 2020-07-01 DOI: 10.1109/ICIVC50857.2020.9177447
Xiang Wang, Ke-bin Jia
With the increase of the elderly population, the phenomenon of the elderly falling at home or out is more and more common. Therefore, fall detection is of great significance for the health protection of the elderly. Throughout the research of fall detection at home and abroad, most of the fall detection based on video monitoring is complex and redundant, which affects the real-time and accuracy of detection. In view of the above problems, this paper proposes a fall detection method based on video in complex environment, aiming to detect fall behavior more accurately and quickly. The main work of this paper is as follows: firstly, YOLOv3 network model is proposed for detection algorithm. Secondly, the human fall detection data set is constructed by referring to Pascal VOC data set format. Then, the algorithm model is optimized and trained in GPU (graphic processing unit) deep learning server. Finally, comparison of test results with our YOLOv3 network model and other detection algorithms shows that our detection algorithm has a good recognition effect.
随着老年人口的增加,老年人在家或外出摔倒的现象越来越普遍。因此,跌倒检测对于老年人的健康保护具有重要意义。纵观国内外对跌倒检测的研究,大多数基于视频监控的跌倒检测过于复杂和冗余,影响了检测的实时性和准确性。针对上述问题,本文提出了一种基于视频的复杂环境下跌倒检测方法,旨在更加准确、快速地检测跌倒行为。本文的主要工作如下:首先,提出了YOLOv3网络模型的检测算法。其次,参照Pascal VOC数据集格式构建人体跌倒检测数据集;然后在GPU(图形处理单元)深度学习服务器上对算法模型进行优化和训练。最后,将测试结果与我们的YOLOv3网络模型和其他检测算法进行比较,表明我们的检测算法具有良好的识别效果。
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引用次数: 21
Multi-frame Image Super-Resolution Algorithm Based on Small Amount of Data 基于小数据量的多帧图像超分辨率算法
Pub Date : 2020-07-01 DOI: 10.1109/ICIVC50857.2020.9177476
Yuhang Jiang, Yuwei Lu, Lili Dong, Wenhai Xu
In this paper, a novel multi-frame image super-resolution algorithm for small amount of data is proposed. Our method solve the problem that the spatial resolution of the reconstructed image is low and the visual quality of it is poor when the number of input low-resolution images is small. In order to improve the quality of the initial estimation, we construct the initial estimation with multi-frame low-resolution images according to the registration parameter and interpolate the missing pixels by directional Gaussian-like filtering. In order to solve the problem of fuzzy initial estimation, the enhancement method is used to highlight the image details. A large number of qualitative and quantitative evaluation results show that our method has strong reconstruction performance for various types of low-resolution images under different amount of data.
本文提出了一种针对小数据量的多帧图像超分辨率算法。该方法解决了输入低分辨率图像数量少时重构图像空间分辨率低、视觉质量差的问题。为了提高初始估计的质量,我们根据配准参数构建了多帧低分辨率图像的初始估计,并用类高斯滤波对缺失像素进行插值。为了解决模糊初始估计问题,采用增强方法突出图像细节。大量定性和定量评价结果表明,该方法对不同数据量下的各类低分辨率图像具有较强的重构性能。
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引用次数: 2
A-DFPN: Adversarial Learning and Deformation Feature Pyramid Networks for Object Detection A-DFPN:用于目标检测的对抗学习和变形特征金字塔网络
Pub Date : 2020-07-01 DOI: 10.1109/ICIVC50857.2020.9177437
Miao Cheng, Jinpeng Su, Luyi Li, Xiangming Zhou
In order to weak the variation of the object instance caused by the scale, we innovatively propose an object detection detector based on adversarial learning and deformation feature pyramid: A-DFPN. Firstly, in the feature extraction stage, the concept of Deformation Feature Pyramid Module is proposed. The outstanding advantage is that it can fully extract object features from different convolution layers and objects of different scales. In addition, Two Stage Module is also proposed, it gradually perfects the adjusted anchors in the previous stage through multi-step regression, and locates the position and shape of the object in each RPN to make the location more accurate. At the same time, Mask Module increases the robustness of the detector by spatially blocking certain feature maps or by manipulating feature responses to generate difficult samples. Finally, the final bounding boxes is filtered by soft-NMS. Under the Resnet-101 network architecture, our algorithm achieves the mean average precision of 81.1034% on the Pascal VOC 2007 dataset and 73.52% on the DETRAC dataset, reaching the state-of-the-art detection level.
为了减弱尺度对目标实例的影响,我们创新地提出了一种基于对抗学习和变形特征金字塔的目标检测检测器:A-DFPN。首先,在特征提取阶段,提出变形特征金字塔模块的概念;突出的优点是可以从不同的卷积层和不同尺度的对象中充分提取目标特征。此外,还提出了两阶段模块,通过多步回归逐步完善前一阶段调整后的锚点,并在每个RPN中定位目标的位置和形状,使定位更加准确。同时,Mask模块通过空间阻塞某些特征映射或通过操纵特征响应来生成困难的样本来增加检测器的鲁棒性。最后,由软网管对最终的边界框进行过滤。在Resnet-101网络架构下,我们的算法在Pascal VOC 2007数据集上达到了81.1034%的平均精度,在DETRAC数据集上达到了73.52%的平均精度,达到了最先进的检测水平。
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引用次数: 0
Support Vector Machine Based Spectrum Allocation Scheme for the Mobile Cognitive Radio Manhattan City Environments 基于支持向量机的移动认知无线电曼哈顿城市环境频谱分配方案
Pub Date : 2020-07-01 DOI: 10.1109/ICIVC50857.2020.9177436
Yao Wang, Yi Zhang, Jiamei Chen, Yang Long, Yang Yang
Cognitive radio (CR) is proposed as a critical means to reuse the primary spectrum in recent years. However, the cognitive node mobility has not fully researched for the mobile cognitive radio networks (CRNs). In this paper, a support vector machine (SVM) based spectrum assignment scheme is presented in the Manhattan city mobility environments, which takes the position and speed information of cognitive nodes into consideration during the spectrum availability prediction. Numerical results show good performance in the total spectrum utilization comparing with the traditional resource allocation algorithms.
认知无线电(CR)是近年来提出的一种重要的主频谱复用方法。然而,对于移动认知无线网络(crn)的认知节点移动性研究尚不充分。本文提出了一种基于支持向量机(SVM)的曼哈顿城市交通环境下的频谱分配方案,该方案在频谱可用性预测中考虑了认知节点的位置和速度信息。数值结果表明,与传统的资源分配算法相比,该算法在总频谱利用率方面具有良好的性能。
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引用次数: 0
期刊
2020 IEEE 5th International Conference on Image, Vision and Computing (ICIVC)
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