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This paper proposes a frame level rate control scheme for HEVC based on support vector machine. Firstly, textual features of frames are extracted from video sequence. According to different complexities of textual features, support vector machine is chosen as a classifier for video classification. Secondly, a frame level rate control scheme is proposed to achieve higher coding efficiency based on...
Performance of real-time video processing applications such as surveillance systems, content-based search, is limited by the complexity of video content analysis in the pixel domain. A low complex alternative is to analyse the video in the compressed domain, where content features already available in the compressed video are directly used in the analysis. However, this is achieved at the expense...
Summary form only given. In this paper, we propose an optimized in painting-based macro block(MB) prediction mode (IP-mode) in the state-of-the-art H.264/AVC video compression engine, and belief propagation (BP) is applied to achieve the global spatio-temporal consistency between the predicted content and the co-located known region. To decrease the computing complexity of the iterative BP algorithm,...
In this paper, we propose an enhanced method of video complexity analysis with audio features. By using the audio features related with visual features, we improved the performance of video complexity analysis and verified the effective values on applying H.264 rate-control.
In this paper we present a novel algorithm to speed up the inter mode decision process for the H.264/AVC encoding. The proposed inter mode decision scheme determines the best coding mode between P16??16 and P8??8 based on learning theoretic classification algorithms to discern between mode classes based on the evaluation of a simple set of features extracted from a motion compensated macroblock. We...
A new method is put forward to decrease the high computational complexity during choosing the most suitable predicting mode in intra-prediction of AVS-M. In-depth studying the fast mode decision algorithm for intra prediction and characteristics of image pixels, the gray entropy is used to describe the feature of gray values in 4 times 4 block. For determining the candidate modes, the simple SAD function...
In the advanced H.264 video coding, the computation complexity is much higher than the previous video coding standards due to the variable block size and multi-reference frame features which are used in the motion compensation process. This paper proposes a hierarchical H.264 fast motion estimation algorithm to decrease the coding complexity in both spatial and temporal domains for encoding high-definition...
Rate distortion optimization (RDO) based spatial intra prediction is an important new feature in H.264/AVC. It chooses the best mode for each MB by exhaustively examining all possible modes. Thus,drastically increased computation complexity is involved. This paper proposes an efficient fast intra mode decision algorithm.Prewitt operator is used to extract each block's two most dominant edge directions...
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