通过特征点匹配,求其局部运动矢量;
The local motion vector of the block was determined by feature point matching.
提出一种基于运动矢量的鲁棒视频水印方案。
The writer proposes a robust video watermarking scheme based on motion vectors.
运动矢量估计是斑点检测和去除的基本步骤。
实现基于运动矢量预测的弱小多目标检测与跟踪算法。
This paper address an algorithm of detection and tracking dim small multi-targets based on motion vector estimation.
预测通常与边界数据有关,例如用于运动补偿的运动矢量。
Prediction usually involves side data, such as a signal telling the decoder a motion vector to use for said motion compensation.
提出了一种基于运动矢量域与DCT域的混合视频水印方案。
So a hybrid video watermarking scheme based on motion vectors and DCT coefficients is proposed.
然后利用刚性运动模型,获得包含旋转角度的全局运动矢量。
Then the global motion vector with rotary Angle can be deduced according to the rigid motion model.
实验结果证明基于码率调整范围的运动矢量修正算法是有效的。
The experimental results show that the Motion Vector Refinement algorithm based on Rate Range is effective.
接着运动矢量滤波器修正了由于局部相似造成的错误运动矢量。
Second, a motion vector filter (MVF) is introduced to correct the false estimated motion vectors caused by partial similarity in the video sequences.
该算法根据运动矢量的中心分布特性设计了相应的匹配搜索模板。
Matching search patterns are designed in the algorithm based on the center-biased characteristics of motion vector distribution.
针对帧间旋转图像序列的稳定处理,提出一种新的运动矢量探测方法。
A new detection method of motion vector was proposed in order to stabilize image sequence with rotation.
结合边缘检测与运动矢量分类,我们提出一种加权运动矢量恢复算法。
Error concealment based on weighted motion vectors according to the edge information and.
算法中利用的压缩参数主要有帧类型、宏块类型、DC系数、运动矢量。
Compressed parameters include type of frame, type of macroblock, DC coefficients, and motion vectors.
参考帧是过去的某个帧,可以从中提取某些像素,以及运动矢量偏移索引。
The reference frame is a past frame from which to grab pixels from and the motion vectors index an offset into that frame.
基于降低分辨率的视频代码转换模型,对运动矢量和宏块类型进行了精简。
The motion vectors and macroblock type during video transcoding based on resolution reduction are refined in this paper.
同时对运动矢量在时域上进行平均,在空域上进行带权矢量中值滤波处理。
Motion vectors are dealt with temporal average filter and a spatially weighted vector median filter.
采用这种方法既能保持低的计算量,同时又具有较高的运动矢量检测性能。
Using this method we can reserve low computational complexity and the high performance of motion detection.
在电子稳像中,利用灰度投影的方法可以实现图像序列帧间运动矢量的检测。
The gray scale projection algorithm can detect motion vector of image sequential frames in electronic image stabilization.
灰度投影算法是检测图像序列帧间运动矢量,实现电子稳像的关键技术之一。
The gray scale projection algorithm is a key technique for detecting motion vector of image sequential frames and realize electronic image stabilization.
然后对得到的运动场进行中值滤波和判别,剔除运动不一致或错误的运动矢量;
Then the resulting motion field is median filtered and differentiated to remove inconsistent or wrong vectors.
针对物体基视频编码与分割应用,提出了求取特征区域真实运动矢量的一种算法。
Proposes an algorithm to determine the true motion vectors of the feature regions for object based video coding and segmentation applications.
该算法首先采用了线性预测块匹配搜索算法来估计内插帧中每一个象素的运动矢量;
Firstly a motion vector is searched for each pixel in the interpolated frame using the block-matching search method of linear prediction.
详细设计了帧间解码IP软核,包括运动矢量生成模块、预测处理模块和插值模块。
Designed the inter-frame decoding IP soft-core, including the motion vector generation module, prediction processing modules and interpolation modules.
该算法通过预测运动矢量较快地搜索到匹配块,减少了搜索次数,提高了搜索效果。
This algorithm improves search performance and reduces search steps compared with Diamond Search by prediction motion vector.
实验室摇摆台电子稳像实验结果表明,该方法可以有效提高图像运动矢量的计算精度。
The experimental result on wave platform shows that the algorithm can effectively improve the calculation precision of image motion vector.
在静态图像自适应分块压缩的基础上,本文提出了对运动矢量自适应估计的初步探讨。
Based on above idea, this article puts forward self-adaptive estimation to motion vectors and makes the abecedarian discussion.
帧间预测是利用前面的帧的信息来猜测块的内容。有两个主要组件:参考帧和运动矢量。
Inter prediction is used to guess the content of a block by referring to past frames. There are two primary components to inter prediction: reference frames and motion vectors.
为了执行一次扫掠,用户需要指定一个运动矢量,它指出了方向和将要用于扫掠的路径长度。
When performing a sweep the user specifies a motion vector, this specifies the direction and magnitude of the path the objects is swept over.
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%。
A new method for motion vector memory management is presented, which can reduce 75% of the memory for motion vectors.
摘要在数字视频处理中经常需要考虑斑点去除问题,运动矢量估计是斑点检测和去除的基本步骤。
In the processing of digital video it is commonly needed to wipe out blotches in the image. Motion estimation is a basic step for this end.
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