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Description: this script used a new fast block matching algorithm with dynamic search patterns to obtain motion vectors for each blocks.
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Size: 172845 |
Author: fangfei_666 |
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Description: 文章比较了H．264和AVS两个标准在运动补偿中运动矢量预测算法的差别， 提出了一种实现H．264 中
主档次(main pmille)下的第4级别(1evel 4)和AVS中的基准档次面向高清应用时运动矢量预测复用的硬件结构。
提出了一种新颖的缓存管理更新机制．极限情况下用于运动矢量的片上缓存大小减少了75％ 。用FPGA验证结果
表明资源占用情况是单独实现AVS的2．3倍，是单独同时实现两个标准的70％。能实现对1080i 30Hz高清图像实
时解码。-Article compares the H. 264 and AVS standards in the two motion compensation algorithm in the motion vector prediction difference, a realization of H. 264 in the main level (main pmille) under section 4 level (1evel 4) and AVS in the benchmark grade of application-oriented high-definition motion vector prediction reuse the hardware structure. A novel cache management update mechanism. Limit used for motion vectors on-chip cache size reduction of 75. The results show that the use of FPGA resources to verify the occupancy of a separate AVS realize 2.3 times, both individually and at the same time realize the standard 70. Can realize high-definition images to 1080i 30Hz real-time decoding.
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Size: 275456 |
Author: 宋恋 |
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Description: this script used a new fast block matching algorithm with dynamic search patterns to obtain motion vectors for each blocks.
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Size: 172032 |
Author: fangfei_666 |
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Description: 这是基于运动块的分析，输入的是运动矢量，检测出对应的矢量-This is based on the movement block analysis, the importation of the motion vectors, detected in the corresponding vector
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Size: 2048 |
Author: 十年砍柴 |
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Description: 双向亚像素运动估计算法，具体步骤如下：
(1) 进行整像素精度的双向运动估计；
(2) 以(1)得到的运动矢量所指向的像素点为中心，内插1/2像素点，再进行双向运动估计；
依此类推，直到得到所需的像素精度为止。
-Bi-directional sub-pixel motion estimation algorithm, concrete steps are as follows: (1) for the whole two-pixel accuracy motion estimation (2) to (1) obtained by the motion vectors point to point as the center pixel, interpolation 1/2 pixel points, bi-directional motion estimation again and so on, until the necessary pixel accuracy so far.
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Size: 24576 |
Author: 郑丹 |
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Description: 一种简化自适应运动补偿插值方案
当运动向量比较精确时,两帧对应的两个像素具有相近的像素值,因此，中值滤波器可选其中任一个像素值作为输出；当运动向量不再可靠时,中值滤波器就会选择输出两帧中对应的两个像素的平均值作为一种性能上的妥协-A simplified adaptive motion compensation interpolation program when more precise motion vectors, the two corresponding two pixels with similar pixel values, therefore, in any of the optional filter value as a pixel output when motion vectors do not longer reliable, the median filter output 2 will choose the corresponding average of two pixels as a performance compromise
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Size: 211968 |
Author: 郑丹 |
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Description: This function calculate block motion vectors (with integer pel accuracy), using hierarchical block matching algorithm.
％An example of main function calling this function is "MEMBA", which can be entered on the command window.
％The function also use the function "EBMA" for motion estimation of every macroblock-This function calculate block motion vectors (with integer pel accuracy), using hierarchical block matching algorithm. An example of main function calling this function is MEMBA , which can be entered on the command window. The function also use the function EBMA for motion estimation of every macroblock
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Size: 2048 |
Author: 冯欣 |
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Description: Motion_Estimation_2D compute Motion Vectors in Anchor Frame from Target Frame in either integer or half-pel accuracy. An example of main function calling this function is "MEMBA", which can be entered on the command window.
The function also use the function "EBMA" for motion estimation of every macroblock
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Size: 2048 |
Author: 冯欣 |
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Description: In this paper we present a scheme for integrating a digital stabilizer with video codec of a digital video camera. This integration achieves computational efficiency without affecting the performance of video coding and digital stabilization. The proposed scheme achieves this by confining the global motion estimation to within a small background region determined by clustering the motion vectors generated by the video encoder.- In this paper we present a scheme for integrating a digital stabilizer with video codec of a digital video camera. This integration achieves computational efficiency without affecting the performance of video coding and digital stabilization. The proposed scheme achieves this by confining the global motion estimation to within a small background region determined by clustering the motion vectors generated by the video encoder.
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Size: 4096 |
Author: prasad |
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Description: 采用块匹配方法对视频进行运动估计，获得运动估计的运动向量。-Using block-matching method of video motion estimation, motion estimation to obtain the motion vectors.
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Size: 785408 |
Author: farmer |
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Description: 本代码计算帧间光流场，通过阈值分割获得运动矢量，对当前帧进行补偿，配置差分后实现运动目标分割，解决复杂背景下运动目标的检测问题。-This code interframe optical flow field calculated by threshold segmentation to obtain motion vectors, to compensate for the current frame, after the implementation differential configuration object segmentation exercise to address the complexity of the context of sport target detection problem.
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Size: 37888 |
Author: 付亚峰 |
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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.
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Size: 121856 |
Author: 成果 |
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Description: 提出一种用于电子稳像技术改进的代表点匹配算法。通过合理的划分区域，保证在 域内各点运动的一致性，利用代表点匹配算法确定各区域内的运动矢量，并把其代入变换模型可得关于旋转、平移和变焦等信息的线性方程组，求其方程的解得全局运动矢量-Proposed for improved electronic image stabilization representative point matching algorithm. Through reasonable zoning, ensure the consistency of movement within the various points, the use of representative point matching algorithm to determine the motion vectors within each region, and its model can be substituted into the transform on the rotation, pan and zoom and other information of the linear equations , find its equation was global motion vector
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Size: 337920 |
Author: wangjinwu |
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Description: 本篇論文提出的整合式解交錯(Integrated De-interlacing)的演算法，可以有效提昇移
動區域的畫面，但是當移動估計不正確時，反而會使移動補償後的畫面變得很差，為了
改善這種情況，因此結合移動可適性解交錯的優點，並將空間圖場內插(Spatial
Interpolation)的方式改成ELA(Edge Line Average)來設計，經過電腦模擬的結果發現，不僅在視覺上提高畫面的解析度，在某些影像峰值訊號雜訊比(Peak Signal Noise Ratio ,
PSNR)也比線平均解交 錯(Line Average De-interlacing)多出好幾分貝的畫質增益。
此外，在整合式解交錯演算法中也增加影片偵測(Film Detection)和影像加強(Image
Enhancement)的演算法設計，在這樣演算法的架構下，透過影片偵測的演算法，我們可
真實地還原3:2 Pull Down 的影片格式，而不會有鋸齒狀(Saw-Toothed)的畫面出現，而影
像加強的演算法，則可以在解交錯後，經過影像的調整，使輸出畫面呈現不同的效果，
達到消費者的需求。-The main theme of this thesis is an integrated de-interlacing system, which incorporates
several known and improved techniques in a nice manner to produce good de-interlaced image
quality. We first develop an accurate motion detector that classifies image regions into
stationary, low-motion, and high-motion categories. The simple field merging method is
applied to the stationary regions. The edge line average interpolation method is applied to the
slow-motion regions. Finally, the motion-compensated interpolation is applied to the
high-motion regions. In addition, hierarchical motion estimation and motion vector smoothing
techniques are employed to enhance the quality of estimated motion vectors. Our computer
simulation shows that the subjective image quality is improved by using the proposed scheme.
Also, its PSNR measures are better than the conventional spatial or temporal interpolation
schemes.
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Size: 1171456 |
Author: robin |
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Description: 全搜索 运动估计 多媒体视频压缩 包含motion矢量算法和test文件进行运动估计-Full search motion estimation includes motion vectors of multimedia video compression algorithms and test files motion estimation
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Size: 2048 |
Author: qqf |
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Description: This algorithm was introduced by Koga et al in 1981. It became very popular because of its simplicity and also robust and near optimal performance. It searches for the best motion vectors in a coarse to fine search pattern. The algorithm may be described as:
Step 1: An initial step size is picked. Eight blocks at a distance of step size from the centre (around the centre block) are picked for comparison.
Step 2: The step size is halved. The centre is moved to the point with the minimum distortion.-This algorithm was introduced by Koga et al in 1981. It became very popular because of its simplicity and also robust and near optimal performance. It searches for the best motion vectors in a coarse to fine search pattern. The algorithm may be described as:
Step 1: An initial step size is picked. Eight blocks at a distance of step size from the centre (around the centre block) are picked for comparison.
Step 2: The step size is halved. The centre is moved to the point with the minimum distortion.
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Size: 257024 |
Author: cho |
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Description: 可以判定某帧中的快运动趋势，得到运动矢量。-Can determine the fast movement of a frame in the trend, get motion vectors
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Size: 84992 |
Author: 黄江帆 |
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Description: 采用全搜索算法计算每个宏块的运动适量，其中返回值为每个宏块对应的运动适量和平均每个宏块所需的搜索点数目。-Computes motion vectors using exhaustive search method
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Size: 1024 |
Author: ld |
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Description: motion estimation it estimates the motion vectors of hexagon search algorithm and estimates its direction
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Size: 6721536 |
Author: shrifmostafa |
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Description: motion estimation ( smoothing motion vectors)
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Size: 1024 |
Author: Ghadeer
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