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. Platform: |
Size: 4096 |
Author:prasad |
Hits:
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: |
Size: 303104 |
Author:hezz |
Hits:
Description: H.264中的运动估计中的BMA（块匹配算法），共有三种方法，三步搜索法，全局搜索法，二维对数搜索法-H.264 motion estimation in the BMA (fast matching algorithm), a total of three methods, three-step search method, global search method, two-dimensional logarithmic search method Platform: |
Size: 7340032 |
Author: |
Hits:
Description: 硕士毕业论文《MPEG4-ASP视频编码器算法设计
及DSP实现》：研究和实现了MPEG4-ASP视频编码标准的关键算法——运动估计和全局运动估计，掌握了视频压缩编码的核心技术以及在通用DSP平台上实现视频编码器的技术要点并实现了编码器的原型，为MPEG4-ASP编码在嵌入式领域的实际应用和开发奠定了基础。
-In chapter one and two, we mainly introduce the basic principle of video compression and the video compression standard up to now. In chapter three, we introduce the profile/level in the mpeg4 standard and focus on the discussion of new charcters. In chapter four, we make a detai research and improvement on the key arithmetic module in MPEG4—Motion Mstimation and Globle Motion Estimation, and adopt improved PMVFAST method and a motion vector based no-iterative global motion estimation method in the codec. The experiment proves that the choosed methods are much more efficient than traditional ones. In chapter five, we discuss the DSP implementation of MPEG4-ASP video codec. Considering the hardware platform, we do the software structure design, data movement and memory, cache arrangement. We also do the software pipeline and assmble language optimization. The encoder now can get the achievement of encoding the CIF format frames 20fps. In the last part of the paper, we make a short conc Platform: |
Size: 443392 |
Author:刘洛丹 |
Hits:
Description: 这是从一本书上找来的代码，对全局运动进行估计，用的是全局搜索法-This is got from a book on the code, the global motion estimation, using a global search method Platform: |
Size: 643072 |
Author:王璐 |
Hits:
Description: 此代码为对全局运动进行估计，运用的全局搜索法。-The code for the global motion estimation, the use of global search method. Platform: |
Size: 2048 |
Author:王璐 |
Hits:
Description: 基于全局运动估计和harris角点法的2d转3d算法-Turn law and harris corner 2d 3d algorithm based on global motion estimation ~ ~ Platform: |
Size: 8373248 |
Author:叶子扬 |
Hits:
Description: 根据全局运动估计参数，也就是模型参数，对于校正后图像的任一像素坐标（x ，y ）
都可以求得它在参考图像中的对应坐标(x,y)，此程序完成视频稳定系统中的运动补偿功能.-Global motion estimation parameters, the model parameters is, either the corrected image pixel coordinates (x ' , y' ) can be obtained which corresponds to the coordinates (x, y) in the reference image, and this process is complete video stable motion compensation system. Platform: |
Size: 1024 |
Author:zhaoru |
Hits:
Description: Motion estimation is the process of determining motion vectors that describe the transformation from one 2D image to another usually from adjacent frames in a video sequence. It is an ill-posed problem as the motion is in three dimensions but the images are a projection of the 3D scene onto a 2D plane. The motion vectors may relate to the whole image (global motion estimation) or specific parts, such as rectangular blocks, arbitrary shaped patches or even per pixel. The motion vectors may be represented by a translational model or many other models that can approximate the motion of a real video camera, such as rotation and translation in all three dimensions and zoom.-Motion estimation is the process of determining motion vectors that describe the transformation from one 2D image to another usually from adjacent frames in a video sequence. It is an ill-posed problem as the motion is in three dimensions but the images are a projection of the 3D scene onto a 2D plane. The motion vectors may relate to the whole image (global motion estimation) or specific parts, such as rectangular blocks, arbitrary shaped patches or even per pixel. The motion vectors may be represented by a translational model or many other models that can approximate the motion of a real video camera, such as rotation and translation in all three dimensions and zoom. Platform: |
Size: 349184 |
Author:doniya |
Hits:
Description: 针对目前大多数形状特征描述的全局性以及对旋转 缩放等变化的敏感性， 采用一种基于目标近似多边形的形状特征描述， 这种描述方式具有局部性和紧凑性， 同时结合运动参数预测及递归估计的方法实现二维目标的检测和定位-Most shape for the global characterization of and sensitivity to changes in the rotation scaling, using a polygon shape based on characteristics of the target approximate description, this description has localized and compact manner, combined with motion parameters and recursive prediction estimation method to achieve the goal of a two-dimensional detection and localization... Platform: |
Size: 432128 |
Author:xuxin |
Hits:
Description: Opencv FSBMA motion estimation 實作-Implement full-search block-matching algorithm (FSBMA) to estimation the motion vectors of each frame in a video sequence.
2.
Use the simulated shaken video to test the FSBMA motion estimation.
3.
Display the motion-compensated frames using the estimated motion vectors.
4.
Display the displaced frame difference (DFD) frame.
5.
Examine the estimated motion vectors to see if the simulated global frame motion in the input video can be found by the FSBMA? Platform: |
Size: 20443136 |
Author:lu you |
Hits:
Description: 基于分层金字塔L-K微分法和局部全局相结合的运动估计算法CLG(Combined-local-Global)-
The combination of motion estimation based on hierarchical pyramid L-K partial differential method and algorithm global CLG (Combined-local-Global) Platform: |
Size: 5120 |
Author:伯纳乌 |
Hits:
Search - global motion estimation