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In this paper, we propose a fast intra-prediction mode decision algorithm based on the probability statistics of the best prediction mode and the relevance of the neighboring blocks for high efficiency video coding (HEVC) to reduce its encoding complexity. The intra prediction candidates are reduced before Rate Distortion Optimization (RDO) procedure by two steps of rough mode decision. Sum of Absolute...
The original data of one view video is huge and that of multi-view video is much more. So, data compression is important for multi-views, and data compression is a key technology for multi-views. In this paper, we explore an efficient fractal video codec with multi-views. From the experimental results with the proposed method and other state of the art methods, we can conclude that the proposed algorithm...
With a rapid demand for multimedia information, visual information plays an important part in information achieving. But the data size of a video is so enormous that it should be compressed and coded immediately. In order to improve the efficiency of MPEG-4 and MPEG-7 adopt content-based coding method, a video sequence is segmented into several meaningful video objects before coding. Video object...
Based on the classical fractal video compression method, an improved monocular fractal compression method is proposed which includes using more effective macroblock partition scheme instead of classical quadtree partition scheme; using improved fast motion estimation to increase the calculation speed; using homo-I-frame like in H.264, etc. The monocular codec uses the motion compensated prediction...
We proposed a novel fractal video coding method using fast block-matching motion estimation technology to overcome the drawback of the time-consuming character in the fractal coding. As fractal encoding essentially spends most time on the search for the best-matching block in a large domain pool, this paper firstly ameliorates the traditional CPM/NCIM method and applies a new hexagon block-matching...
This paper presents an improved fast fractional pel motion estimation algorithm for H.264. First, to skip inefficient fractional pel search, smooth macro-block prediction algorithm is proposed. Then, to further reduce the computation load of H.264 fractional pel motion estimation, an extended diamond pattern search algorithm based on predicted motion vector is proposed. The simulation result shows...
Based on the classical fractal video coding scheme, a novel hybrid video coding scheme joint fractal and object-based function is proposed. A new technique of object-based fractal video coding in which each object can be encoded and decoded independently results in increasing compression ratio and speed and reducing bit rate and bandwidth is used. The proposed techniques include: using more effective...
In the paper, a novel fractal monocular video codec is proposed which includes: using new macroblock partition scheme instead of classical quadtree partition scheme; reducing the block searching strategy and range, thus increasing the calculation speed greatly; using homo-I-frame like in H.264; reducing repeating calculation. The fractal monocular video codec uses the MCP structure. And the fractal...
Video object segmentation is a key technology in video processing, which is the foundation of the newly object-based video compression standard MPEG-4. A novel spatio-temporal video object segmentation algorithm is proposed in this paper, which is very efficient to acquire the video object moving in a static background. Firstly, video sequence is segmented with change detection algorithm to get segmentation...
A novel object-based fractal monocular and stereo video compression scheme with quadtree- based motion and disparity compensation is proposed in this paper. Fractal coding is adopted and each object is encoded independently by a prior image segmentation alpha plane, which is defined exactly as in MPEG-4. The first n frames of right video sequence are encoded by using the circular prediction mapping...
A new object-based fractal stereo video coding scheme with quadtree-based disparity or motion compensation is proposed in this paper. Monocular or stereo video are compressed by using fractal coding and each object is encoded independently by a prior image segmentation alpha plane which is exactly the same as in MPEG-4. The first 2 frames of right video are encoded by using the circular prediction...
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