A Model Based Motion Estimation Algorithm For Very-Low-Rate Video Coding
碩士 === 國立清華大學 === 資訊科學學系 === 84 === A new algorithm for very low bit-rate image sequences coding with low bit-rate and high picture quality is proposed. The proposed algorithm uses a variable size block method to estimate motion vectors accurately and reduce the number of motion vectors. Unlike c...
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| Format: | Others |
| Language: | en_US |
| Published: |
1996
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| Online Access: | http://ndltd.ncl.edu.tw/handle/57145280763417878613 |
| Summary: | 碩士 === 國立清華大學 === 資訊科學學系 === 84 ===
A new algorithm for very low bit-rate image sequences coding with low bit-rate and high picture quality is proposed. The proposed algorithm uses a variable size block method to estimate motion vectors accurately and reduce the number of motion vectors. Unlike conventional algorithms, the proposed one applies a multi-vectors algorithm to estimate a block motion by more than one motion vector and uses a model based method to trace the object's contours to reduce visual artifacts. By testing several image sequences, such as ”Miss American” and ”Claire”, the proposed algorithm shows very good results.
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