Fast feature-based mode decision for 4×4 intra prediction in H.264/AVC
نویسندگان
چکیده
منابع مشابه
Architecture for H.264 Intra Prediction Fast Mode Decision Algorithm
The paper presents an architecture for fast mode decision algorithm in H.264/AVC for 4x4 intra-prediction. This algorithm is based on the inherent symmetry existing in the spatial prediction modes. This algorithm gives a faster way of calculating sum of absolute differences (SADs) for all modes of intra prediction. So, a significant computational savings can be achieved. Synthesis results confi...
متن کاملFast Intra Prediction Mode Decision Algorithm for HEVC
This paper proposes a novel fast intra-prediction algorithm that exploits the Sobel operator to replace the Hadamard transform used in the Rough Mode Decision (RMD) process of intra prediction in High Efficiency Video Coding (HEVC). First, the Sobel operator is used to calculate the vector direction of each pixel. A judgment is then made on which prediction mode the vector belongs to, and a his...
متن کاملFast Intra Mode Decision for Depth Map coding in 3D-HEVC Standard
three dimensional- high efficiency video coding (3D-HEVC) is the expanded version of the latest video compression standard, namely high efficiency video coding (HEVC), which is used to compress 3D videos. 3D videos include texture video and depth map. Since the statistical characteristics of depth maps are different from those of texture videos, new tools have been added to the HEVC standard fo...
متن کاملDCT Based Fast INTRA Mode Decision Method for HEVC Coding
High Efficiency Video Coding (HEVC) can significantly improve coding efficiency by using 35 intra prediction modes, which lead to a substantial increase in coding complexity yet. In this paper, a fast intra mode decision method for HEVC based on DCT is proposed. The algorithm estimates the texture direction of the prediction block (PB) by using discrete cosine transform and reduces the number o...
متن کاملFast Intra-Prediction Mode Decision in H.264/AVC Based on Macroblock Properties
Intra-prediction is a widely used technique in intra coding. H.264/AVC adopts rate-distortion optimization (RDO) technique to obtain the best intra prediction, while maximizing visual quality and minimizing the required bit rate. However, the RDO reduces the encoding speed via the exhaustive evaluation of all candidate modes. In this paper, we decrease the encoding time by reducing the number o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science China Information Sciences
سال: 2011
ISSN: 1674-733X,1869-1919
DOI: 10.1007/s11432-011-4443-0