搜索结果: 1-14 共查到“数据处理 H.264”相关记录14条 . 查询时间(0.08 秒)
Rate Distortion Modeling of Skip Mode and Early Skip Mode Selection for H.264/MPEG-4 AVC
Rate Distortion Modeling Skip Mode Early Skip Mode
2009/12/31
This paper proposed a linear rate-distortion (RD) cost model for skip mode in H.264. The proposed RD cost model is derived theoretically based on the quantization scheme of H.264, and the simulation r...
A Novel Rate Estimation Model for Mode Decision of H.264/AVC
Rate Estimation Model Mode Decision H.264/AVC
2009/12/31
To acquire the optimal coding mode of each macroblock, the H.264/AVC encoder exhaustively calculates the ratedistortion cost for all available modes and chooses the minimum one as the best mode. There...
Effective algorithms for fast transcoding of AVS to H.264/AVC in the spatial
AVS H.264/AVC Transcoding Mode mapping
2007/12/31
This paper proposes a transcoding scheme from AVS to H.264/AVC. As highcompression
video coding standards, H.264/AVC jointly developed by MPEG and ITU and
AVS developed by the Audio Video Coding Sta...
Reusable Architecture and Complexity-Controllable Algorithm for the Integer/Fractional Motion Estimation of H.264,
Reusable Architecture Complexity-Controllable Algorithm Integer/Fractional Motion Estimation
2007/12/31
Motion estimation is the most computational intensive part of H.264 video coding. The motion estimation of H.264 includes int eger motion estimation and fractional motion estimation. In this paper, a ...
Real-time video coding under power constraint based on H.264 codec,
Real-time video coding power constraint H.264 codec
2007/12/31
In this paper, we propose a joint power-distortion optimization scheme for real-time H.264 video encoding under the power constraint. Firstly, the power constraint is translated to the complexity cons...
A context-based adaptive fast Intra_4x4 prediction mode decision algorithm for H.264/AVC video coding
context-based fast Intra_4x4 prediction mode decision algorithm H.264/AVC video coding
2007/12/31
In this paper, we propose a context-based adaptive fast Intra_4x4 prediction mode decision algorithm for H.264/AVC. Firstly, a 3-order Markov random field model is introduced to describe the spatial d...
A Novel Two-Pass VBR Coding Algorithm for the H.264/AVC Video Coder Based on a New Analytical R-D Model
Two-Pass VBR Coding Algorithm the H.264/AVC Video Coder Analytical R-D Model
2007/12/31
In this paper, the generalized Gaussian distribution is employed first to model the 16(4*4) integer transform coefficients of the residue image in H.264 videos. Then the distortion-rate function of ge...
An efficient reference frame storage scheme for H.264 HDTV decoder
reference frame storage scheme H.264 HDTV decoder
2006/12/31
This paper proposes an efficient reference frame storage scheme for HDTV VLSI decoder to reduce external memory bandwidth requirement. The proposed scheme consists of the pixel duplication mechanism a...
A fast intra mode decision algorithm for AVS to H.264 transcoding
decision algorithm AVS to H.264 transcoding
2006/12/31
H.264/AVC is the latest video coding standard developed by MPEG and ITU. AVS is the latest video coding standard developed by China. The two new video coding standards will co-exist in the market in t...
Adaptive Block-Size Transform Based on Extended Integer 8x8/4x4 Transforms for H.264/AVC
Block-Size Transform Extended Integer 8x8/4x4 Transforms H.264/AVC
2006/12/31
In this paper, a low-complexity Adaptive Block-size Transform (ABT) scheme is proposed for the H.264/AVC.The integer 8x8/4x4 discrete cosine transforms with an extended relation are applied to the pro...
Reducing Spatial Resolution for MPEG-2 to H.264/AVC Transcoding
Reducing Spatial Resolution MPEG-2 to H.264/AVC Transcoding
2005/12/31
Transcoding is an important technique for reducing the bit rate or spatial resolution to meet the constrained transmission bandwidths and terminal capabilities. In this paper, we propose a spatial dow...
Improved FFSBM Algorithm and Its VLSI Architecture for Variable Block Size Motion Estimation of H.264,
Improved FFSBM Algorithm VLSI Architecture Variable
2005/12/31
The video coding standard H.264/AVC has adopted variable block size motion estimation to improve coding efficiency, which has brought heavy computation burden.The FFSBM (fast full search block matchin...
Mode Mapping Method for H.264/AVC Spatial Downscaling Transcoding
Mode Mapping Method H.264/AVC Spatial Downscaling Transcoding
2004/12/31
Transcoding is a very effective method for universal media adaptation. Spatial resolution downscaling is one of the most popular transcoding applications. Although a number of transcoding methods have...
Key Techniques of Bit Rate Reduction for H.264 Streams
Key Techniques Bit Rate Reduction H.264 Streams
2004/12/31
In previous techniques of bit rate reduction transcoding,reusing the mode of the input MB is widely adopted. However, directly re-using the mode of input MB will cause additional losses for H.264 bit-...