发明名称 |
Wavelet Transform Aparatus and Method, Scalable Video Coding Apparatus and Method Employing the Same, and Scalable Video Decoding Apparatus and Method Thereof |
摘要 |
Provided are a lift-based wavelet transform apparatus and method, a scalable video coding apparatus and method using the same, and a scalable video decoding apparatus and method. The lifting-based wavelet transform apparatus includes: a prediction unit which performs bidirectional motion compensation on odd-indexed frames based on even-indexed frames and generates high-frequency frames using differential frames from which most of energy is removed; an update determination unit which, in the even-indexed frame, determines whether to update each target block at which a reference block indicated by a motion vector is placed; and an update unit which updates a target block of the even-indexed frame which is determined to be updated by adding the differential frame to each target sub-block included in the target block and generates low-frequency frames.
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申请公布号 |
US2007253487(A1) |
申请公布日期 |
2007.11.01 |
申请号 |
US20050662016 |
申请日期 |
2005.09.16 |
申请人 |
KIM JOO-HEE;KIM HYA-YUN;KIM DON-HYUN |
发明人 |
KIM JOO-HEE;KIM HYA-YUN;KIM DON-HYUN |
分类号 |
H04N11/04 |
主分类号 |
H04N11/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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