Recent Progress on Block-Based Motion Estimation Techniques

Motion estimation (ME) has become a bottleneck in many real-time video coding schemes owing to its computation complexity. Thus, fast ME algorithms have become crucial in video encoder design. Because of its simplicity, block-matching ME is the most popular and widely used algorithm. This paper pres...

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Vydané v:Technical review - IETE Ročník 32; číslo 5; s. 356 - 363
Hlavní autori: Parmar, Nidhi Kunal, Sunwoo, Myung Hoon
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Taylor & Francis 03.09.2015
Predmet:
Fast block-matching algorithm
H.264/AVC
HEVC
Motion estimation
Video codec
Video compression
ISSN:0256-4602, 0974-5971
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Shrnutí:Motion estimation (ME) has become a bottleneck in many real-time video coding schemes owing to its computation complexity. Thus, fast ME algorithms have become crucial in video encoder design. Because of its simplicity, block-matching ME is the most popular and widely used algorithm. This paper presents a review of recently proposed block-matching ME algorithms. The main concepts of fast ME algorithms can be classified into four categories: reduction in search points, matching criteria, early termination conditions, and multi-resolution approaches. In addition, the pros and cons of the representative algorithms are analysed. Finally, the algorithms are evaluated on the basis of visual quality and number of search points.
ISSN:0256-4602
0974-5971
DOI:10.1080/02564602.2015.1018350