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2014 Fifth International Conference on Signal and Image Processing最新文献

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Entropy Based Fuzzy C Means Clustering and Key Frame Extraction for Sports Video Summarization 基于熵的模糊C均值聚类和关键帧提取运动视频摘要
Pub Date : 2014-01-08 DOI: 10.1109/ICSIP.2014.49
S. Angadi, Vilas Naik
Recent advances in technology have made tremendous amount of multimedia information available to the general population. To access the needed information in this scenario there is a need for automatic tools to filter and present information summary. Summarization techniques will give a choice to users to browse and select the multimedia documents of their choice for complete viewing later. In this work a new summarization technique to collect frames of importance in a video is presented. The method is based on selection of frames typically different from their immediate neighbors as key frames from group of similar frames. It uses the process of clustering, where visually similar frames are collected into one group using Fuzzy C means clustering algorithm. When clusters are formed, the frames that exhibit a change ratio which is a measure of the content variation, greater than the average value of the cluster are treated as Key frames. The summary is created by merging Key frames on the basis of their timeline. This method ensures that video summary represents the most unique frames of the input video and gives equal attention to preserving continuity of the summarized video. The robustness of the algorithm is validated by average values of performance parameters. The average compression ratio of 92% is indication of higher conciseness. The average fidelity of 95% is an indicative of comprehensive representation of video by the key frames selected using proposed algorithm.
最近技术的进步使大众可以获得大量的多媒体信息。为了在此场景中访问所需的信息,需要使用自动工具来过滤和显示信息摘要。摘要技术将为用户提供浏览和选择他们选择的多媒体文档的选择,以便以后完整地查看。本文提出了一种新的视频重要帧的汇总技术。该方法基于从一组相似帧中选择通常与其近邻不同的帧作为关键帧。它使用聚类的过程,其中视觉上相似的帧收集成一组使用模糊C均值聚类算法。当集群形成时,表现出变化比率(衡量内容变化的指标)大于集群平均值的框架被视为关键框架。摘要是通过在时间轴的基础上合并关键帧来创建的。该方法既保证了视频摘要代表了输入视频中最独特的帧,又保证了视频摘要的连续性。通过性能参数的平均值验证了算法的鲁棒性。平均压缩比为92%,表明简洁性较高。95%的平均保真度表明,使用所提出的算法选择的关键帧对视频进行了全面的表示。
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引用次数: 19
An Efficient Classification Algorithm for Music Mood Detection in Western and Hindi Music Using Audio Feature Extraction 一种基于音频特征提取的西方和印度音乐情绪检测的高效分类算法
Pub Date : 2014-01-08 DOI: 10.1109/ICSIP.2014.63
A. S. Bhat, Namrata S. Prasad, Amith V S, M. Murali
Over the past decade, a lot of research has been done in audio content analysis for extracting various kinds of information, especially the moods it denotes, from an audio signal, because music expresses emotions in a concise and succinct way, yet in an effective way. People select music in congruence to their moods and emotions, making the need to classify music in accordance to moods more of a demand. Since different individuals have different perceptions about classifying music according to mood, it becomes a much more difficult task. This paper proposes an automated and efficient method to perceive the mood of any given music piece, or the "emotions" related to it, by drawing out a link between the spectral and harmonic features and human perception of music and moods. Features such as rhythm, harmony, spectral feature, and so on, are studied in order to classify the songs according to its mood, based on Thayer's model. The values of the quantified features are then compared against the threshold value using neural networks before classifying them according to different mood labels. The method analyzes many different features of the music piece, including spectra of beat and roughness, before classifying it under any mood. A total of 8 different moods are considered. In particular, the paper classifies both western and Indian Hindi film music, taking into consideration, a database of over 100 songs in total. The efficiency of this method was found to reach 94.44% at the best.
在过去的十年里,人们在音频内容分析方面做了大量的研究,从音频信号中提取各种信息,特别是它所代表的情绪,因为音乐表达情感的方式简洁明了,但却很有效。人们根据自己的心情和情绪来选择音乐,这使得根据心情对音乐进行分类成为一种更大的需求。由于不同的人对根据情绪对音乐进行分类有不同的看法,这就变得更加困难了。本文提出了一种自动和有效的方法来感知任何给定音乐作品的情绪,或与之相关的“情绪”,通过绘制谱和和声特征与人类对音乐和情绪的感知之间的联系。在Thayer模型的基础上,研究了歌曲的节奏、和声、谱特征等特征,以便根据歌曲的情绪对其进行分类。然后使用神经网络将量化特征的值与阈值进行比较,然后根据不同的情绪标签对它们进行分类。该方法分析音乐作品的许多不同特征,包括节拍谱和粗糙度,然后在任何情绪下对其进行分类。总共考虑了8种不同的情绪。特别是,本文对西方和印度的印地语电影音乐进行了分类,考虑到总共有100多首歌曲的数据库。结果表明,该方法的效率最高可达94.44%。
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引用次数: 39
Automated Real Time Video Quality Measurement Using Levenberg-Marquardt Backpropagation Algorithm 基于Levenberg-Marquardt反向传播算法的自动实时视频质量测量
Pub Date : 2014-01-08 DOI: 10.1109/ICSIP.2014.61
P. Archana, S. Kulkarni
With high volumes of Multimedia data transmission becoming a reality, most of the networks are capable of meeting only bare requirements of video information transfer. An important aspect of video transfer is to deal with User's satisfaction in terms of quality of service. Hence new methods are being proposed to meet user's criteria. In this paper a frame work has been described based on Artificial Neural Networks for real time video quality assessment.
随着大量多媒体数据传输成为现实,大多数网络只能满足视频信息传输的基本要求。视频传输的一个重要方面是处理用户在服务质量方面的满意度。因此,新的方法被提出,以满足用户的标准。本文描述了一种基于人工神经网络的实时视频质量评估框架。
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引用次数: 2
Stereo Image Rectification Using Focal Length Adjustment 立体声图像校正使用焦距调整
Pub Date : 2014-01-08 DOI: 10.1109/ICSIP.2014.45
M. S. Kumar, N. Avinash
Stereo Image rectification is more popular due to its robustness and vast amount of search space reduction in stereo correspondence problem. It has wide range of applications in 3d medical imaging, robot navigation, virtual reality, and entertainment etc. Rectified Images includes more distortion which will affect 3d imaging quality. In this paper, we choose time stamped stereo frames from stereo video streams from heterogeneous cameras. These stereo image pairs are verified for suitability for calibration using error pair elimination method. Heterogeneous cameras are calibrated from the selected stereo image pairs and followed by rectification of stereo image pairs by compensating the focal lengths of the cameras. The resultant rectified image has lesser number of hollow pixels as compared to conventional algorithm. Lesser number of hollow pixels results in accurate 3D co-ordinate estimation compared with conventional algorithm.
立体图像校正由于其鲁棒性和对立体对应问题的大量搜索空间缩减而受到越来越多的关注。它在三维医学成像、机器人导航、虚拟现实、娱乐等领域有着广泛的应用。校正后的图像包含更多的失真,这将影响3d成像质量。本文从异构摄像机的立体视频流中选择带有时间戳的立体帧。使用误差对消除法验证了这些立体图像对的校准适用性。非均匀相机从选定的立体图像对进行标定,然后通过补偿相机的焦距对立体图像对进行校正。与传统算法相比,所得到的校正图像具有较少的空心像素数。与传统算法相比,较少的空心像素使三维坐标估计更加准确。
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引用次数: 4
Digital Restoration of Deteriorated Mural Images 退化壁画图像的数字修复
Pub Date : 2014-01-08 DOI: 10.1109/ICSIP.2014.10
M. Prasanth, K. K, Mayank Kumar, Bhargav B V S, Mrinmoy Ghorai
In this paper, an integrated methodology is proposed to virtually enhance the mural images by taking the weighted average of original image with the mean image. The algorithm consists of four major steps as described in the paper. A new line detection and extraction technique using correlation followed by convolution with different templates is implemented and explained. The synthesis of the templates is also explained in detail. Toggle filter is used to enhance the lines. This step is followed by K-means clustering, averaging pixels and weighted average. An idea on recovery of degraded patch is also presented. The results of our experiment are found to be good and may be used to restore deteriorated digital mural images.
本文提出了一种将原始图像与平均图像进行加权平均的壁画图像虚拟增强方法。该算法包括四个主要步骤,如本文所述。本文实现并解释了一种新的线检测和提取技术,该技术使用了不同模板的相关和卷积。并对模板的合成进行了详细的说明。切换滤波器用于增强线条。这一步之后是K-means聚类,平均像素和加权平均。提出了退化斑块恢复的思路。实验结果表明,该方法具有较好的复原效果,可用于复原变质的数字壁画图像。
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引用次数: 4
A Novel Approach to Circular Edge Detection for Iris Image Segmentation 一种用于虹膜图像分割的圆形边缘检测方法
Pub Date : 2014-01-08 DOI: 10.1109/ICSIP.2014.56
Shashidhara H R, A. Aswath
This paper details about segmentation of iris region for iris recognition as a biometrical personal identification and verification. Human iris is unique and differs from one individual to another. Just as finger prints, biomedical proves human irises are distinct. Also, iris can be easily accessed from any visual capturing device. The two dimensional structure of iris further assists the technology. This paper describes the extraction of iris region from an image of the human eye. The proposed algorithm defines a new method to segment Iris from the image. It's a new technique for circular edge detection particularly for Iris recognition. An image undergoes various operations like black and white conversion, edge detection and filtering. The fact that the intensity of iris lies between the intensities of pupil and rest of the eye is the key here to extract iris. A simple vertical and horizontal scan is done over the image to get the tangents of the circles. A mathematical analysis is done on the images to get the radius and the center of the circle and hence the inner and outer circles of the iris are drawn or Hough transform can be done using the obtained values for more accuracy. We are constructed the circles after obtaining the values.
本文详细介绍了虹膜区域分割作为虹膜识别的一种生物特征个人识别与验证方法。人的虹膜是独一无二的,因人而异。就像指纹一样,生物医学证明人类的虹膜是独特的。此外,虹膜可以很容易地从任何视觉捕捉设备访问。虹膜的二维结构进一步辅助了这项技术。本文描述了人眼图像中虹膜区域的提取方法。提出了一种从图像中分割虹膜的新方法。它是一种新的圆形边缘检测技术,尤其适用于虹膜识别。图像经过各种操作,如黑白转换、边缘检测和滤波。虹膜的强度介于瞳孔和眼睛其他部分的强度之间,这是提取虹膜的关键。在图像上进行简单的垂直和水平扫描以获得圆的切线。对图像进行数学分析,得到半径和圆心,从而绘制出虹膜的内外圆,或者利用得到的值进行霍夫变换,以获得更高的精度。我们在得到这些值后构造圆。
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引用次数: 11
Content Based Image Retrieval with Relevance Feedback Using Riemannian Manifolds 黎曼流形相关反馈的基于内容的图像检索
Pub Date : 2014-01-08 DOI: 10.1109/ICSIP.2014.9
Pushpa B. Patil, M. Kokare
In this paper we propose a novel approach for content-based image retrieval with relevance feedback, which is based on Riemannian Manifold learning algorithm. This method uses positive and negative (relevant/irrelevant) images labeled by the user at every feedback iteration. In this paper, we pre-computed the cost adjacency matrix and its eigenvectors corresponding to the smallest eigen values for effectiveness and efficiency of the retrieval system. Then we apply the Riemannian Manifolds learning concept to estimate the boundary between positive and negative images. Experimental results of the proposed method have been compared with earlier approaches, which show the superiority of the proposed method.
本文提出了一种基于黎曼流形学习算法的基于内容的相关反馈图像检索方法。该方法在每次反馈迭代中使用用户标记的正面和负面(相关/不相关)图像。为了提高检索系统的有效性和效率,我们预先计算了最小特征值对应的代价邻接矩阵及其特征向量。然后应用黎曼流形学习概念来估计正负图像之间的边界。将所提方法的实验结果与前人的方法进行了比较,表明了所提方法的优越性。
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引用次数: 4
VIMARSHAK -- A Web Based Subjective Image Evaluation System VIMARSHAK——一个基于Web的主观图像评价系统
Pub Date : 2014-01-08 DOI: 10.1109/ICSIP.2014.16
Gazal Garg, P. Mondal, S. M. Aswatha, Jit Mukherjee, Tapas Maji, J. Mukherjee
In this paper, a secured web based online subjective image evaluation system has been proposed to assess different image processing algorithms. Since many image processing algorithms are designed to enhance the human perception of available image cues, subjective evaluation plays an important role in the assessment of the same. The proposed technique assesses several similar processes by accumulation of votes by individual human evaluators through pair wise comparisons of their outputs. Three tournament strategies are used for the pair wise image comparisons, namely knockout, challenging, and round-robin. The experiments show a satisfactory result in evaluation of accumulated ensemble of evaluators' votes, which is validated using Berkeley boundary detection benchmark dataset.
本文提出了一种基于安全web的在线主观图像评价系统,对不同的图像处理算法进行评价。由于许多图像处理算法都是为了增强人类对可用图像线索的感知而设计的,因此主观评价在评估中起着重要作用。提出的技术通过个人评估者通过对其输出的成对比较来累积投票,从而评估几个类似的过程。三种比赛策略用于配对图像比较,即淘汰赛,挑战和循环赛。实验结果表明,该方法对评价者投票累积集合的评价结果令人满意,并使用Berkeley边界检测基准数据集进行了验证。
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引用次数: 2
An Active Contour Method for MR Image Segmentation of Anterior Cruciate Ligament (ACL) 前交叉韧带(ACL) MR图像分割的主动轮廓法
Pub Date : 2014-01-08 DOI: 10.1109/ICSIP.2014.28
N. A. Vinay, H. Vinay, T. Narendra
Image segmentation is a fundamental task in image analysis which is responsible for partitioning an image into multiple sub-regions based on a desired feature. Active contours have been widely used as attractive image segmentation methods because they always produce sub-regions with continuous boundaries, while the kernel-based edge detection methods, e.g. Sobel edge detectors, often produce discontinuous boundaries. The use of level set theory has provided more flexibility and convenience in the implementation of active contours. However, traditional edge-based active contour models have been applicable to only relatively simple images whose sub-regions are uniform without internal edges. Here in this paper we attempt to brief the taxonomy and current state of the art in Image segmentation and usage of Active Contours. The goal of medical image segmentation is to partition a medical image in to separate regions, usually anatomic structures that are meaningful for a specific task. In many medical applications, such as diagnosis, surgery planning, and radiation treatment planning determining of the volume and position of an anatomic structure is required and plays a critical role in the treatment outcome.
图像分割是图像分析中的一项基本任务,它负责根据所需的特征将图像划分为多个子区域。活动轮廓作为一种有吸引力的图像分割方法被广泛使用,因为它总是产生具有连续边界的子区域,而基于核的边缘检测方法,如Sobel边缘检测器,经常产生不连续的边界。水平集理论的应用为活动轮廓的实现提供了更大的灵活性和方便性。然而,传统的基于边缘的活动轮廓模型只适用于相对简单的图像,这些图像的子区域是均匀的,没有内部边缘。本文简要介绍了活动轮廓的分类、图像分割的研究现状和活动轮廓的应用。医学图像分割的目标是将医学图像分割成独立的区域,通常是对特定任务有意义的解剖结构。在许多医学应用中,如诊断、手术计划和放射治疗计划,解剖结构的体积和位置的确定是必需的,并且在治疗结果中起着关键作用。
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引用次数: 3
Vehicle Data Acquisition and Telemetry 车辆数据采集和遥测
Pub Date : 2014-01-08 DOI: 10.1109/ICSIP.2014.35
J. Chandiramani, Sanjam Bhandari, S. Hariprasad
Data Acquisition (DAQ) and Telemetry are part of the winning formula of any race team or vehicle manufacturer. It is vital to the development phase of a vehicle, so that designs can be validated and tunable parameters adjusted to increase performance and efficiency. Existing DAQ systems fail as they are of universal application type and turn out to be extremely costly and power hungry. Also, the lack of filtering stages is an issue for sensor data coming from a moving vehicle. The system discussed in this paper was designed specifically for automotive application, taking into account the size, cost and performance, while also taking care of the noise factor by including digital filters. The system was found to be 2.2 times more cost effective than current modules, with a data rate of 9600Hz and 10 bit resolution for DAQ and the telemetry system working at a serial data baud rate of 9600 transmitted wirelessly through a ZigBee network.
数据采集(DAQ)和遥测技术是任何车队或汽车制造商制胜公式的一部分。这对于车辆的开发阶段至关重要,因此可以验证设计并调整可调参数以提高性能和效率。现有的DAQ系统失败,因为它们是通用的应用类型,结果是极其昂贵和耗电。此外,对于来自移动车辆的传感器数据来说,缺乏滤波阶段也是一个问题。本文讨论的系统是专门为汽车应用而设计的,考虑到尺寸,成本和性能,同时也考虑到噪声因素,包括数字滤波器。该系统的数据速率为9600Hz,数据采集分辨率为10位,遥测系统通过ZigBee网络以9600的串行数据波特率无线传输,比现有模块的成本效益高2.2倍。
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引用次数: 8
期刊
2014 Fifth International Conference on Signal and Image Processing
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