Summary Frames
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Temporal rate-distortion based optimal video summary generation
Video summary work originates from a viewing time constraint. A shorter version of the original video sequence is desirable in some applications. Clearly, a shorter version is necessary in applications where storage or bandwidth is limited. Our work is based on visual significance analysis of frames in a video sequence and a video temporal rate-distortion optimization framework. Temporal rate d...
متن کاملKey Frame Based Video Summarization via Dependency Optimization
As a rapid growth of digital videos and data communications, video summarization that provides a shorter version of the video for fast video browsing and retrieval is necessary. Key frame extraction is one of the mechanisms to generate video summary. In general, the extracted key frames should both represent the entire video content and contain minimum redundancy. However, most of the existing ...
متن کاملA Novel Key-Frame Extraction Approach for Both Video Summary and Video Index
Existing key-frame extraction methods are basically video summary oriented; yet the index task of key-frames is ignored. This paper presents a novel key-frame extraction approach which can be available for both video summary and video index. First a dynamic distance separability algorithm is advanced to divide a shot into subshots based on semantic structure, and then appropriate key-frames are...
متن کاملJPEG 2000 Based Scalable Summary for Understanding Long Video Surveillance Sequences
This paper presents a new method for remote and interactive browsing of long video surveillance sequences. The solution is based on interactive navigation in JPEG 2000 coded mega-images. We assume that the video ‘key-frames’ are available through automatic detection of scene changes or abnormal behaviors. These key-frames are concatenated in raster scanning order forming a very large 2D image, ...
متن کاملTwo-stage hierarchical video summary extraction to match low-level user browsing preferences
A compact summary of video that conveys visual content at various levels of detail enhances user interaction significantly. In this paper, we propose a two-stage framework to generate MPEG-7-compliant hierarchical key frame summaries of video sequences. At the first stage, which is carried out off-line at the time of content production, fuzzy clustering and data pruning methods are applied to g...
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تاریخ انتشار 2011