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METHOD AND APPARATUS OF MOTION COMPENSATION BASED ON BI-DIRECTIONAL OPTICAL FLOW TECHNIQUES FOR VIDEO CODING
METHOD AND APPARATUS OF MOTION COMPENSATION BASED ON BI-DIRECTIONAL OPTICAL FLOW TECHNIQUES FOR VIDEO CODING
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机译:基于双向光流技术的视频编码运动补偿方法和装置
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摘要
Methods and apparatus of motion compensation using the bi-directional optical flow (BIO) techniques are disclosed. According to one method of the present invention, the BIO process is applied to encode or decode bi-directional current block in Merge mode only or in AMVP (advanced motion vector prediction) mode only. According to another method, the BIO process conditionally to encode or decode the current block depending on a jointly-coded flag if the current block is coded using a bi-prediction mode. According to yet another method, x-offset value vx and y-offset value vy for the current block are added to the current motion vector to form a final motion vector. The final motion vector is then used as a reference motion vector for following blocks. In still yet another method, the BIO process is applied to the chroma component.
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