A Study on Object-Based Video Compression
碩士 === 國立交通大學 === 資訊科學系 === 90 === Object-based video compression is a hot topic. This kind of techniques separates objects from the background and encodes objects individually. In this thesis, we will propose an object segmentation method and an object-based video compression method....
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| Format: | Others |
| Language: | en_US |
| Published: |
2002
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| Online Access: | http://ndltd.ncl.edu.tw/handle/80368889867706396980 |
| Summary: | 碩士 === 國立交通大學 === 資訊科學系 === 90 === Object-based video compression is a hot topic. This kind of techniques separates objects from the background and encodes objects individually. In this thesis, we will propose an object segmentation method and an object-based video compression method. Both methods are fully automatic. The object segmentation approach provides the ability to extract rigid objects from two consecutive frames with or without background motion. The main idea is to analyze the motion information between two frames. Then the result of object segmentation could be used in the object-based video compression method. The object in each frame could be considered the same as the first extracted one. So we only need to record the motions of background and the object in each frame. And the new appeared background area also needs to be recorded. Thus, only a little information is needed to reconstruct the original video.
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