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RATE CONTROL METHOD OF PERCEPTUAL-BASED RATE-DISTORTION OPTIMIZED BIT ALLOCATION
RATE CONTROL METHOD OF PERCEPTUAL-BASED RATE-DISTORTION OPTIMIZED BIT ALLOCATION
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机译:基于感知的速率失真优化位分配的速率控制方法
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摘要
A rate control method of perceptual-based rate-distortion (R-D) optimized bit allocation is disclosed. An input frame is firstly determined as a key frame or non-key frame. A key frame is additionally encoded to generate rate-distortion (R-D) points. The R-D model of each basic unit (BU) is updated, followed by perceptual-based bit allocation, thereby generating a target bit rate. A quantization parameter (QP) is computed according to the target bit rate, and the current BU is encoded according to the QP. A rate-quantization (R-Q) model is updated if not all BUs have been encoded.
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