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Through packing the two neighboring views after down-sampling into one frame, frame-compatible format coding allows stereo video to be encoded on the conventional video applications. Using the content similarity which leads to similar prediction between the two packed planes, a fast algorithm is discussed in this paper. The target of the proposed algorithm is to reduce the computational complexity...
In this paper, a region of interest (ROI) oriented partial H.264/AVC decoding scheme is proposed to enable low-power and low-complexity HD video content display on low resolution screens. The proposed scheme is a macroblock level based partial decoding, which employs several strategies to maintain the good video quality in the ROI. The simulation results show that, the proposed scheme provides better...
This paper proposes a region-of-interest (ROI) based H.264/AVC encoder which reduces computational complexity. A proposed fast ROI detection algorithm which can detect face-like regions as ROIs is applied to obtain accurate and small ROI so as to reduce the necessary coding effort of the encoder. The complexity reduction algorithm contains 3 methods: (1) the inter prediction mode selection based on...
In this paper, an encoding system is proposed to further reduce the power consumption in parallel video encoding based on difference detection and Hilbert transform based workload estimation (HTWE). The proposed parallel encoding system provides an average of 40% computational complexity reduction for parallel encoding without objective performance loss. For the multi-core platform with frequency...
This paper discusses the NP-complete multi-constrained path problem with imprecise state information, and a heuristic pre-computation algorithm based on flooding with imprecise additive link state information is presented. This algorithm uses limited flooding policy based on selective non-dominated path and can find paths from present node to all other nodes only running once. And the algorithm deals...
As a state-of-the-art video compression technique, H.264/AVC has been deployed in many surveillance cameras to improve the compression efficiency. However, it induces very high coding complexity, and thus high power consumption. In this paper, an early skip mode decision algorithm is proposed to reduce the computational complexity and power consumption in surveillance video compression by detecting...
Video surveillance has been widely applied in broad area to improve the public safety and to protect the residential privacy. Because of the requirements in storing the video data over a period of time for future use and because of the huge size of the raw video data, video compression technique has been integrated into the video camera of the surveillance system. As a state-of-the-art video compression...
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...
OvTDM (overlapped time division multiplexing) is a new type of transmission scheme with high spectrum efficiency and low threshold SNR (signal noise ratio). Sphere-decoding of OvTDM is used to achieve fast ML decoding, with the simulation results and expected complexity analysis given.
This paper discusses the NP-complete multi-constrained path problem with imprecise state information, and a distributed heuristic framework without any imprecision assumption is presented. This framework needs no link state exchanging message, and employs mobile agents to search feasible paths in parallel. Two key strategies are used: to select a suitable next node, and to choose the appropriate one...
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