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Traditionally, rate control consists of bit allocation and QP decision on R-QP model. In bit allocation, target bits is further confined if buffer overflows. Meanwhile, rate control should also give as smooth as possible picture quality. However, there is no explicit relationship between picture quality and encoding parameters, so the coding result on picture quality is usually unpredictable and uncontrollable...
This paper presents a high efficiency method to decide the inter mode of the H.264/AVC encoder. Although rate-distortion optimization (RDO) improving the video quality in video compression largely, its high computational complexity brings huge time cost. The key idea of this paper is to reduce the candidate modes by the underlying relation between motions and macro block partition types. Thus, a motion...
In this paper, we propose a novel fast mode decision scheme for intra-frame and inter-frame in the H.264/AVC video coding standard. This algorithm only computes the best likely modes which are selected by the value of variance (second moment). The variance is used to measure the smoothness and coarseness of the texture, and then a few modes are selected according to the value of variance. The proposed...
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