Description: 给出了一种用于H.264变换尺寸全搜索快匹配算法的运动估计电路的改进结构，并完成了VLSI设计。通过脉动阵列和全流水线的设计，达到最高的数据重用率、最小的I/O引脚和100 的硬件计算效率。-An improved architecture for H.264 full-pel motion estimation using variable block size full-search block-matching algorithm is proposed in this paper. To obtain the highest data reuse efficiency and minimum I/O pin count while achieving 100 hardware efficiency, a systolic array and full pipeline architure is adopted. Platform: |
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Author:周 |
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Description: 国外网站上下载的很好的运动估计程序。是用matlab语言来写的-Abroad, a good site to download the motion estimation procedure. Is written in matlab language Platform: |
Size: 101376 |
Author:DENG |
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Description: 本论文首先系统地介绍了视频压缩编码的基本原理和方法，以及各国际标准
化组织提出的压缩标准；其次分析了JPEG和MPEG-4的主要技术，据此提出
MPEG-4简单框架编码器的软件实现方案，给出流程图，在VC++环境下用C语言
程序实现了JPEG压缩及MPEG-4简单框架的视频压缩功能，采用测试序列验证
无误，并对两种标准的压缩比进行试验对比，突出压缩的关键技术为DCT和运动
估计算法；接着深入研究了DCT变换、运动估计和补偿算法并进行了优化改进，
给出了用于快速匹配块的自适应十字模式搜索算法，并给出了对各种块匹配估计
算法的仿真结果。然后详细介绍了TI公司TMS320C6711DSP的软硬件特性，并
在此基础上提出系统的硬件实现方案。接着介绍了基于系统软硬件环境的移植问
题和优化方法，并针对算法移植和仿真过程中的问题进行了说明。
最后就课题设计过程中研究的结果予以总结，并阐述了以后课题研究的要点。-In this thesis,an introduction to video compression principal,methods and central
international video coding standards is done firstly.Then analyzing the core techniques
of JPEG and MPEG-4 and proposing a scheme of MPEG-4 SP encoder,the coding
function of JPEG and MPEG-4 is achieved in C successfully with test sequence Then
compare the compressed ratio of two standards,point out the key of compression is DCT
and Motion Estimation algorithm.Afterwards,studying the DCT/Motion
Estimation/Motion Compensation algorithm in detail and giving an adaptive rood
pattern search for fast Block-Matching motion estimation.Then the simulation of several
motion estimation algorithms based block-matching is given.Accordingly,a scheme of
a DSP-based video compression system is put forward,with the features of TI’s
TMS320C6711 DSP.At last,the transplant and optimization are considered on the basis
of soft and hard environments,also the simulation process.
In the end,the summarization about the Platform: |
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Author:father2002 |
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Description: 解Demosaici，使用连续逼近的方法！-Motion-compensated (MC) video coding has been dominating in the past decades. From MPEG-1/2 to MPEG-4, H.263 and the latest H.264, we have witnessed that the accumulative improvement of MC video coding. However, what lacks in the standardization-propelled research is to maintain a healthy skeptism toward the role of MC in video coding. In this project, we attempt to challenge the current video coding paradigm by proposing a sound alternative that does not involve any explicit motion estimation or compensation. Instead, motivated by the duality between edge profile of 2D images and motion trajectory of 3D video Platform: |
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Author:panhanming |
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Description: This paper is a review of the block matching
algorithms used for motion estimation in video compression. It
implements and compares 7 different types of block matching
algorithms that range from the very basic Exhaustive Search to
the recent fast adaptive algorithms like Adaptive Rood Pattern
Search. The algorithms that are evaluated in this paper are
widely accepted by the video compressing community and have
been used in implementing various standards, ranging from
MPEG1 / H.261 to MPEG4 / H.263. The paper also presents a
very brief introduction to the entire flow of video compression-This paper is a review of the block matching
algorithms used for motion estimation in video compression. It
implements and compares 7 different types of block matching
algorithms that range from the very basic Exhaustive Search to
the recent fast adaptive algorithms like Adaptive Rood Pattern
Search. The algorithms that are evaluated in this paper are
widely accepted by the video compressing community and have
been used in implementing various standards, ranging from
MPEG1/H.261 to MPEG4/H.263. The paper also presents a
very brief introduction to the entire flow of video compression Platform: |
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Author:vikas |
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Description: maltab implementation of the 4ss (forth step search) algorithm in matlab used for motion estimation. Platform: |
Size: 1024 |
Author:naim12345 |
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Description: Matlab implementation of the ES (extensive search algorithm ) used in motion estimation of macro blocks. Platform: |
Size: 1024 |
Author:naim12345 |
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Description: Implementation of the TSS (three step search) algorithm in matlab which is used for motion estimation and compensation technique for macro blocks. Platform: |
Size: 2048 |
Author:naim12345 |
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Description: 该方法可以用于复制场景的视频检测监控，采用灰度投影算法匹配进行全局运动估计和补偿，用以消除背景变化的影响；二次对称差分算法，用数学形态学对图像进行处理，该方法不受光线，摄像机抖动，场景等变化的干扰影响，具有较强的实时性，效果不错！-This method can be used to copy the scene of the video inspection and monitoring, using gray-scale projection algorithm to match the global motion estimation and compensation, to eliminate the background change second symmetric difference algorithm, using mathematical morphology image processing, the method not light, camera shake, scene changes and other disturbances, has a strong real-time, good results! Platform: |
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Author:hezz |
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Description: 本文提出并得出快速可变块大小运动估计算法，在此基础上分析比较H264、MPEG4、AVC视频编码算法。文中提供的算法减少运算，以较少的运算量获得较高的图像质量。-This paper proposes and investigates fast variable block-size
motion estimation algorithms based on merge and split
procedures for H.264/MPEG-4 AVC video encoding. The
algorithms take advantage of the correlation of the Motion
Vectors (MVs) of the different block-size modes, to achieve
good computation reduction. Experimental results show that the
number of search points can be reduced to about 4 of that
using full-search motion estimation, with negligible quality
degradation. Platform: |
Size: 121856 |
Author:成果 |
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Search - motion estimation