Vector quantization and signal compression
Vector quantization and signal compression
International Journal of Computer Vision
A magnifier tool for video data
CHI '92 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Content-Based Video Indexing and Retrieval
IEEE MultiMedia
Content-based browsing of video sequences
MULTIMEDIA '94 Proceedings of the second ACM international conference on Multimedia
Digital video processing
Video and image processing in multimedia systems
Video and image processing in multimedia systems
A fuzzy video content representation for video summarization and content-based retrieval
Signal Processing - Special issue on fuzzy logic in signal processing
JPEG Still Image Data Compression Standard
JPEG Still Image Data Compression Standard
Introduction to Modern Information Retrieval
Introduction to Modern Information Retrieval
Efficient Color Histogram Indexing for Quadratic Form Distance Functions
IEEE Transactions on Pattern Analysis and Machine Intelligence
A Spatiotemporal Motion Model for Video Summarization
CVPR '98 Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition
Hierachical Brushing in a Collection of Video Data
HICSS '01 Proceedings of the 34th Annual Hawaii International Conference on System Sciences ( HICSS-34)-Volume 4 - Volume 4
Pattern Classification (2nd Edition)
Pattern Classification (2nd Edition)
VideoZoom spatio-temporal video browser
IEEE Transactions on Multimedia
Video browsing system based on compressed domain feature extraction
IEEE Transactions on Consumer Electronics
Non-sequential video content representation using temporal variation of feature vectors
IEEE Transactions on Consumer Electronics
Rapid scene analysis on compressed video
IEEE Transactions on Circuits and Systems for Video Technology
Video visualization for compact presentation and fast browsing of pictorial content
IEEE Transactions on Circuits and Systems for Video Technology
Low bit-rate coding of image sequences using adaptive regions of interest
IEEE Transactions on Circuits and Systems for Video Technology
An integrated scheme for automated video abstraction based on unsupervised cluster-validity analysis
IEEE Transactions on Circuits and Systems for Video Technology
Efficient summarization of stereoscopic video sequences
IEEE Transactions on Circuits and Systems for Video Technology
An overview of the MPEG-7 description definition language (DDL)
IEEE Transactions on Circuits and Systems for Video Technology
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In this paper, a multiscale content-based video decomposition scheme is presented for efficient non-linear (nonsequential) organization of the video visual content. In particular, each video file is analyzed in a multiscale structure of different "content resolution levels", creating a hierarchy from the lowest (coarse) to the highest (fine) resolution. The scheme resembles the progressive transmission of still images, where instead of transmitting the image sequentially at a full resolution, by scanning it line by line, a lower image resolution is first delivered and then, the image quality gradually enhances so that the user is able at any time to see a preview of the image content. The proposed video decomposition is represented as a graph structure, each level of which corresponds to a particular content resolution, while the graph-nodes the respective regions that the content is analyzed at this level. Transitions among nodes of the same level are also permitted. The number of nodes at a given level expresses the degree of detail that the content at this level is analyzed. This number is estimated by minimizing the average transmitted information, required for localizing a video segment of interest and also takes into account the content complexity.Quality criteria are introduced to evaluate the efficiency of the proposed scheme. The efficiency of the organization is maximized if multiscale content decomposition is performed using content representatives and constructing content classes. Content representatives are estimated in our approach as the ones of the maximum dissimilarity, expressed by a distance metric. The optimization is conducted by incorporating a stochastic algorithm of logarithmically reduced searching area (stochastic logarithmic). Experimental results on real-life video sequences show that the proposed multiscale video organization enables users to detect content of interest much faster, compared to the conventional sequential video scanning or other video decomposition/summarization methods, resulting in a better organization efficiency as measured by the quality criteria.