提出了基于四叉树分形编码的水印算法,通过在不同寻找区域中搜索最佳匹配定义域块来嵌入水印。
This paper proposes a watermarking algorithm based on quadtree fractal coding, which is to search for the optimized matched domain blocks in different regions and to embed the watermarking.
首先利用灰度投影法得到相邻两幅图像的平移量,在此基础上再利用块匹配算法进行分块处理。
First, we calculate the translation between two images by gray projection algorithm, then we use the block-matching algorithm in the divided blocks.
运动参数估计在图像配准,电子稳像以及图像拼接中起着很重要的作用,其中块匹配算法是经常使用的一种方法。
Motion parameter estimation play an important role in image matching, electric image stabilizing and image Mosaic, and the block-matching algorithm is the most used method.
文章提出了一种基于新颖的基于块匹配算法的图像运动估计算法。
This article proposed a novel motion estimate algorithm which is based on block-matching algorithm(BMA).
论文研究了传统的基于块匹配的立体图像编码方法,在此基础上,提出了一种新的利用亮度变化信息的自适应块匹配立体图像编码算法。
The dissertation proposes a novel adaptive block-size stereo image coding algorithm based on traditional block-based coding algorithm, which fully utilizes the information of intensity variety.
提出一个用于低比特率视频编码的快速块匹配运动估计算法。
A fast block matching motion estimation algorithm for low bit rate video coding is proposed.
目前有许多较好的搜索算法提高了块匹配算法的效率。
Up to now, there have been many nice search algorithms to improve the efficiency of the block-matching algorithm.
视差估计与补偿是立体图像编码的关键问题,本文提出了一种基于交叠块匹配的视差估计与补偿算法。
Disparity estimation and compensation are vital tasks in stereo image coding. An algorithm for disparity estimation and compensation based on overlapped block matching is proposed in this paper.
对块匹配算法产生的块效应进行了研究。
提出了一种基于小波变换域的块匹配运动估计搜索的新算法,模拟实验表明,利用此算法可获得比一般运动块匹配方法更大的峰值信噪比,具有更好的性能复杂度比。
The authors present a new algorithm for block-matching motion estimation based on wavelet transform. The simulation shows that this algorithm has better PSNR and performance-to-complexity ratio.
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.
为了减少块匹配过程中每个待匹配位置的运算次数,保持块匹配的精度,又引入了连续排除算法,降低了计算复杂度。
In order to reduce the calculation number of matching position and keep the precision, we make use of the successive elimination algorithm. Therefore, the complexity was reduced.
在运动估计中通过对多种块匹配算法进行实验,选择了一种可以满足系统要求的算法——新的三步搜索法。
Through testing many different Block Matching Algorithms in the motion estimation, the New Three Step Search Algorithm is chosen, which can fulfill the requirement of the system.
为实现精准、快速的定位效果,阐述了以块匹配法为核心,基于序列图像的室内定位算法;
In order to achieve the result of exact and quick positioning, describe indoor position algorithm on block match of image sequence.
在块匹配时,将图像块进一步细分,改进了相似度测量算法的准确性。
To make blocks match better, the algorithm improves the accuracy of similarity measurement through subdividing image block.
本算法采用了将方块转换为圆盘的方式来完成值域块与定义域块的匹配,扩充了编码字典。
The algorithm completes the matching of the range and domain block by way of transforming the square to the disk, and expands the encoding dictionary.
以全搜索块匹配算法为例的实验表明,该算法在保持精度不变的前提下,运算量最终减少到8.72%。
Experimental data on full search block matching algorithm indicates that the proposed method keeps the accuracy while the computation load is reduced to 8.72%.
该文提出了一种新的快速块匹配运动估计算法,即自适应十字模式搜索。
This paper proposes an adaptive rood pattern search, a new fast block-matching motion estimation algorithm.
实验表明,对有较大弹性形变的图像,与块匹配法相比,该算法得到的平均匹配残差明显减小。
The experiment shows that the average residual error using the method is smaller than using block matching method for the large scale elastic deformed image.
本算法采用了将方块转换为圆盘的方式来完成值域块与定义哉块的匹配,扩充了编码字典。
The algorithm completes the matching of the range and domain block by way of transforming the square to the disk, SND expands the encoding dictionary.
试验证明,该算法能找到更精确的匹配块,进而增强纹理合成的效果。
Experiments show that the presented method produces more reasonable and credible synthesis results for the improved matching algorithm.
其运算量仅为基于梯度的可变形块匹配算法(GB-DBMA)的一半,但能得到更好的主客观预测质量,且更易于VLSI硬件实现。
NS-DBMA has only half computation amount of the gradient-based search algorithm (GB-DBMA) but gets better subjective and objective quality, and is much easier to implement by VLSI.
软件采用了适于流水线运算的块匹配算法,实现了对目标的快速定位和实时跟踪。
The system software uses a block match algorithm easy to flow computing and implements fast detecting and real-time tracking of the moving object.
新算法与全搜索块匹配算法相比,在重建图像质量方面是非常接近的,但却获得了几百倍的提速。
The new algorithm achieves very close quality compared to full search but with several hundred times speedup.
在理解块匹配问题本质的基础上,系统地归纳总结了目前国内外现有的块匹配算法。
On the base of understanding for block matching problem in nature, a systematic summarize is made for all current block matching algorithm in the world.
块匹配算法是视频编码的关键技术,算法的效率直接影响了视频传输的质量。
In video coding, one of the key technologies is the block-matching algorithm, and its efficiency directly affects the quality of video transmission.
本文提出了一种利用象素块特征矢量的块匹配算法。
A block matching algorithm using block feature vector is proposed.
详细论述了基于块匹配的鲁棒运动估计算法。
We proposed a robust approach to object motion estimation between frames based on block matching in this paper.
另外,该方法中抖动消除算法和光流计算方法使用同一块匹配算法,这样能有效地节省了算法的时间。
As well as, because the shake eliminating method and the optical flow computational method use the same block matching method, the algorithm can save the computing time efficiently.
提出了一种称为准全搜索法的块匹配改进算法。
In this paper, a quasi full search method for the improved motion estimation algorithm is proposed.
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