A Fast 4X4 Intra Prediction Method using Motion Vector Information and Statistical Mode Correlation between 16X16 and 4X4 Intra Prediction In H.264|MPEG-4 AVC
نویسندگان
چکیده
منابع مشابه
Fast 4*4 intra-prediction mode selection for H.264
In this paper, we propose a fast intra-prediction mode selection method for JVT video coding standard H.264. Based on local edge information obtained by calculating edge feature parameters, the method can reduce the computational complexity considerably while maintaining similar PSNR and bit rate. Experimental results are presented to show the effectiveness of the proposed method.
متن کاملArchitectural Templates for the 4x4 Transforms of the H.264/avc Standard Targeting the Intra Prediction Coder
This paper presents an architectural investigation for the 4x4 transforms (4x4 Hadamard and 4x4 DCT) of the H.264/AVC standard, looking for high throughput and low latency architectures that fit in the Intra Prediction constraints. Five architectural templates were designed, and then applied to both 4x4 forward transforms for evaluation purpose. However, the templates can be also applied to the...
متن کاملالگوریتم جدید انتخاب حالت داخل فریمی سریع در استاندارد کدگذاری ویدیویی H.264/AVC
By the increasing of video communication in portable and functional devices, encoders design with low complexity and high performance are required. H.264 / AVC standard offers higher compression efficiency than previous standards. But this standard by employing several powerful coding techniques, considerably increased complexity at the encoder. This paper presents a new algorithm to reduc...
متن کاملFast Intra Prediction Algorithm for H.264/AVC Based on Quadratic and Gradient Model
The H.264/AVC standard uses an intra prediction, 9 directional modes for 4x4 luma blocks and 8x8 luma blocks, 4 directional modes for 16x16 macroblock and 8x8 chroma blocks, respectively. It means that, for a macroblock, it has to perform 736 different RDO calculation before a best RDO modes is determined. With this Multiple intra-mode prediction, intra coding of H.264/AVC offers a considerably...
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: Journal of Broadcast Engineering
سال: 2008
ISSN: 1226-7953
DOI: 10.5909/jbe.2008.13.2.200