Adaptation of Motion Estimation Algorithms for Real Time Video Sequences

2018 ◽  
Author(s):  
Sherin Abdelaal ◽  
Yuhanis Yusof
Keyword(s):  
Motion Estimation ◽  
Real Time ◽  
Video Sequences ◽  
Estimation Algorithms

scholarly journals A Complexity and Quality Evaluation of Block Based Motion Estimation Algorithms

10.14311/668 ◽  
2005 ◽  
Vol 45 (1) ◽  
Author(s):  
S. Usama ◽  
M. Montaser ◽  
O. Ahmed
Keyword(s):  
Performance Evaluation ◽  
Motion Estimation ◽  
Video Compression ◽  
Quality Evaluation ◽  
Point Of View ◽  
Video Sequences ◽  
Compression Algorithms ◽  
Estimation Algorithms ◽  
Block Based ◽  
A Performance

Motion estimation is a method, by which temporal redundancies are reduced, which is an important aspect of video compression algorithms. In this paper we present a comparison among some of the well-known block based motion estimation algorithms. A performance evaluation of these algorithms is proposed to decide the best algorithm from the point of view of complexity and quality for noise-free video sequences and also for noisy video sequences. 

scholarly journals Embedded Implementation of a Real-Time Motion Estimation Method in Video Sequences

2016 ◽  
Vol 22 ◽  
pp. 897-904 ◽  
Author(s):  
Laszlo Bako ◽  
Szabolcs Hajdu ◽  
Sandor-Tihamer Brassai ◽  
Fearghal Morgan ◽  
Calin Enachescu
Keyword(s):  
Motion Estimation ◽  
Real Time ◽  
Estimation Method ◽  
Video Sequences ◽  
Time Motion ◽  
Embedded Implementation

scholarly journals New Motion Estimation Algorithms and its VLSI architectures for Real Time High Definition Video Coding

2012 ◽  
Vol 7 (1) ◽  
pp. 37-46
Author(s):  
Gustavo Sanchez ◽  
Marcelo Porto ◽  
Diego Noble ◽  
Sergio Bampi ◽  
Luciano Agostini
Keyword(s):  
Motion Estimation ◽  
Real Time ◽  
High Performance ◽  
Local Minima ◽  
High Definition ◽  
Vlsi Architectures ◽  
Estimation Algorithms ◽  
Diamond Search ◽  
Good Trade ◽  
And Performance

This paper presents an efficient hardware design using the new Motion Estimation (ME) algorithms named: Multi-point Diamond Search (MPDS) and Dynamic Multi-Point Diamond Search (DMPDS). These algorithms are more efficient to avoid from local minima falls than traditional fast algorithms.This fact contributes to increase the quality of the motion vectors, especially in High Definition (HD) videos, were the number of local minima are considerable higher. Two versions of MPDS algorithm were proposed. The first one, focused on high performance, is capable to process videos QFHD at 30 frames per second when synthesized to Altera Stratix 4 and 90nm TSCM, with only 18mW. The second version is focused on quality enhancement and is capable to process HD 1080p videos in real time. The DMPDS architecture has been developed focusing on high performance and was synthesized to Altera stratix 4. This architecture is capable to process videos QFHD at 34 frames per second. In comparison to related works, our solutions obtained the highest processing rates, and a good trade-off among power consumption, area, memory bits and performance.

Improvements on Motion Estimation Algorithms in Video Coding for H.264/AVC

2013 ◽  
Vol 756-759 ◽  
pp. 3455-3460
Author(s):  
Xiao Li Wang ◽  
Long Zhao
Keyword(s):  
Motion Estimation ◽  
Video Coding ◽  
Real Time ◽  
Video Compression ◽  
Motion Vector ◽  
Coding Efficiency ◽  
Estimation Algorithms ◽  
Whole Process ◽  
Motion Activity ◽  
Precision Motion

Motion estimation is the most important step in video compression. By using high precision motion vector in the H.264 encoder, the calculation is rapidly increased, but in the whole process of coding, motion estimation occupies about 80%. Although many motion estimation algorithms have been proposed to reduce the computational complexity of motion estimation, it still cannot meet the strict real-time demand. In this paper, based on the analysis of UMHexagonS algorithm, dynamic searching window is chosen in the UMHexagonS algorithm, then according to the motion activity, it uses different template to reduce the motion estimation time and improve video coding efficiency. Proved by the experiments on various test sequences, compared with the UMHexagonS algorithm, the motion estimation time of the proposed algorithm average saves 17.7525% in the case of the quality of the reconstructed image and rate close. It not only reduces the complexity of the algorithm, but also improves the real-time performance of the encoder.

scholarly journals Block Based Motion Estimation Algorithms: Analysis

2020 ◽  
Vol 14 ◽  
Keyword(s):  
Motion Estimation ◽  
Video Coding ◽  
Video Processing ◽  
Search Algorithm ◽  
Video Sequences ◽  
Estimation Process ◽  
Estimation Algorithms ◽  
Block Based ◽  
Temporal Redundancy ◽  
Full Search

several video coding standards and techniques have been introduced for multimedia applications, particularly h.26x series for video processing. These standards employ motion estimation process in order to reduce the amount of data that is required to store or transmit the video. Motion estimation process is an inextricable part of the video coding as it removes the temporal redundancy between successive frames of video sequences. This paper is about these motion estimation algorithms, their search procedures, complexity, advantages, and limitations. A survey of motion estimation algorithms including full search algorithm, many fast search and fast full search block based algorithms has been presented. An evaluation of up to date motion estimation algorithms, based on a number of empirical results on several test video sequences, is presented as well.

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