Multigrid block matching motion estimation for generic video coding
نویسندگان
چکیده
منابع مشابه
Adaptive motion tracking block matching algorithms for video coding
In most block-based video coding systems, the fast block matching algorithms (BMA’s) use the origin as the initial search center, which may not track the motion very well. To improve the accuracy of the fast BMA’s, a new adaptive motion tracking search algorithm is proposed in this paper. Based on the spatial correlation of motion blocks, a predicted starting search point, which reflects the mo...
متن کاملA VLSI-Based Parallel Architecture for Block-Matching Motion Estimation in Low Bit-Rate Video Coding
In this paper, we proposed a flexible VLSI-based parallel processing architecture for an improved three-step search (ITSS) motion estimation algorithm that is superior to the existing three-step search (TSS) algorithm in all cases and also to the recently proposed new threestep search (NTSS) algorithm if used for low bitrate video coding, as with the H.261 standard. Based on a VLSI tree process...
متن کاملFractal Video Compression using Block Matching Motion Estimation - A Study
The large usage of multimedia applications on internet and mobiles has increased the demand of compressed data, as to reduce the bandwidth requirement and transmission time. So block based method for video compression is getting more importance due to its effectiveness and easy implementation. Fractal video compression follows the property of self-similarity. The weighted finite automata exploi...
متن کاملSimplified Block Matching Criteria for Motion Estimation ∗
In this paper, we propose fast block matching criteria to reduce the implementation complexity of motion estimation in VLSI video coders. Based on generalized quantization of pixel difference measures, the block matching criteria combined with bitmap exclusive-OR (XOR) concept can be realized by short length adders and a multi-input binary counter. The proposed approach can be treated as a gene...
متن کاملConfidence measures for block matching motion estimation
This paper addresses the problem of deriving measures that express the degree of the reliability of motion vectors estimated by a Block Matching motion estimation method. We express the block matching motion estimation scheme in the probabilistic framework and derive the confidence measures in terms of the a-posteriori probabilities of the estimated vectors. The type of the underlying condition...
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: Signal Processing
سال: 1994
ISSN: 0165-1684
DOI: 10.1016/0165-1684(94)90112-0