视差
- parallax;parallax error;optical parallax
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[optical parallax] 直接用肉眼观测时所产生的误差
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而视差的影响是主要的误差因素。本文就视差的定义、产生视差的原因以及视差的影响作了阐述和分析。
The parallax error is the major factor in error , this artiales with regard to the definition of error , has explained and analyzed the cause of parallax error and the effect .
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冗余离散小波变换立体视差估计及DSP实现
Redundant discrete wavelet transforms based disparity estimation and its DSP implementation
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N(Z)的和图.一种基于最小割的稠密视差图恢复算法
An Algorithm for Dense Disparity Mapping by Using Graph Cuts
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该算法融合了Direct模式提前终止算法、可变尺寸块帧间预测算法和视差估计提前跳过算法。
This algorithm combines the Direct mode early termination , variable size inter prediction and early disparity estimation skipping .
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缺陷定位的方法主要有黑度法、体视法、工业CT及视差法等,其中视差法相对于其它几种方法,以其操作简便、适用范围广而得到了普遍应用。
The methods of location defects include : Density Method , Stereo-scope Observing , Industrial CT and Parallax .
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对于B帧和P帧中由于错误匹配而产生的块虚像,通过优化运动估计和视差估计来去除。
For blocking effects in P-frames and B-frames , a new method of optimizing motion estimation and disparity estimation algorithms is proposed .
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本文从人类立体视觉的原理出发,重点讨论在计算机中如何从3D模型获取用于裸眼立体显示视差图像的问题。
The problem of how to extract parallax images from computer3D models used in stereoscopic display is discussed in this paper .
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本文提出了一种快速,可靠的立体匹配算法产生浓密视差图,通过使用快速互相关、矩形秩和3D最大表面技术粗到细计划。
The disparity map forms the basis of many computer vision techniques . A disparity map is effectively a limited3D model .
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同时Beliefpropagation全局能量最小化方法又可保证视差的整体平滑性。
And Belief Propagation , a global energy minimization method , can keep the overall smoothness of disparity map .
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LCD器件电光参数测量中视差的研究
Study of the Parallax in the Measurement of Electro-Optic Parameters in the LCD Devices
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一种基于MPEG-2的立体视频编码中的视差匹配快速算法
Fast Disparity Correspondence Algorithm for Stereo Video Coding Based on MPEG-2
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图6演示了SnailBait如何实现该视差。
Figure 6 illustrates how Snail Bait implements parallax .
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视差诱发了枕叶皮层的负波N2。
Disparity induced a large N2 in occipital region .
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消除垂直视差的过程被称为外极线校正。本文提出了一种针对3D电影的外极线校正方法。
The process of eliminating the vertical disparities is also known as " stereo rectification " . This paper proposes a new method of stereo rectification .
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基于计算得到的视差图,提出了一种结合深度信息以及ActiveContour算法的人体轮廓提取算法。
Based on the disparity map , we proposed a method that combines depth information and active contour algorithm to extract human body contour from images .
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具有视差的立体图对的沃尔什(Walsh)谱分析
Analysis of Walsh spectra of stereoscopic pairs
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在此基础上,利用对应点的视差计算基于双CCD成像的目标深度信息。
On the basis of such a result , the depth information is computed by using the disparity of corresponding points in two images .
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竖基线视差法测量一般必须使用精密的经纬仪,例如J2级光学经纬仪,才能达到满意的测距精度。
The measurement of subtense method with vertical staff generally requires the use of precision theodolites such as J2 order optical theodolites .
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在普通液晶显示器的背光源与LCD屏之间插入一块特殊的光栅板是主流自由立体显示器基本配置,照明盒与光栅板结合构成视差照明方式实现对LCD屏的照明。
The mainstream configuration of autostereoscopic display is to insert a shutter between liquid crystal display ( LCD ) screen and illumination box .
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具体在以下几个方面的研究工作中取得了进展及创新:1、通过试验的方法,将CCD自然图像的随机噪声分成测量噪声、照度噪声和视差噪声三类,进行定性和定量的分析。
Classified the random noise of CCD natural images into three categories : measuring noise , illumination noise and noise coming from parallax according to experimentation , qualitative and quantitative analyze them .
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描述的子空间投影技术(SPT)是一种把视差补偿(DC)和二维低阶近似相结合的立体图像编码方法。
This paper describes a stereo image coding algorithm & the subspace projection technique ( SPT ), which is based on disparity compensation and two-dimensional low order approximation .
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垂直视差的存在是造成观看者头晕、眼胀等视觉疲劳现象的主要原因之一,因而探寻通过对3D电影进行后期校正来消除垂直视差的理论和方法具有重要意义。
Vertical disparities is one of reasons that will make the viewer feel dizzy , eye strain and visual fatigue . Therefore , the research to find the theory and method to eliminate the vertical disparities is meaningful .
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推导了立体视差法中距离分辨率,探测范围、探测距离、两CCD摄象机的间距及CCD本身各参数之间的关系。
The relations among the resolution of the range , the detection space , the detecting range , the separation between two CCD cameras and parameters of CCD itself are derived in the paper .
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本文以3D视频显示屏幕尺寸变化对人眼感知到的景深的影响为切入点,研究了3D视频后处理中的若干问题,如视差图的获取和视点合成等。
In this paper , 3D video post-processing technologies , such as disparity map computation , view synthesis , and so on , are researched based on the discussion about the impact of display screen size changing on objects ' depth perceived by human eyes .
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应用Moravec算子对视差矢量图进行检测,提取特征视差矢量并对其进行精确度检验。
Moravec operator is used to find out characteristic disparity vectors in disparity images for precision confirmation .
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提出了一种基于块的最大后验概率(MAP)的立体视差估计算法,可在相关法和MSE法的基础上引入先验知识,从而更好地提高匹配性能。
A new algorithm for stereo disparity estimation by employing maximum a posteriori ( MAP ) criterion is proposed . It can introduce prior knowledge to the normalized correlation and MSE methods to increase matching performance . 5 .
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大部分研究者在视差选择这一步采用WTA策略(赢家通吃),同时致力于通过改善其它三部分来提高匹配精度。
Most researchers choose the WTA ( Winner-Takes-All ) method in the part of disparity computation and improve the algorithms in the remaining three parts .
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由于每个GCP聚类代表着一定的视差范围,这样所得到的区域集往往能正确反映出场景中不同表面分布的情况。
Finally each GCP cluster stands for certain range of disparity , and the result of regions can correctly reflect the distribution of surfaces in the scene .
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该算法基于Tao算法框架,通过图像分割、初始视差获取、初始模板计算、区域及模板优化、模板分配等步骤来实现。
This algorithm is based on the framework of the Tao algorithm and the whole algorithm includes several steps , such as image segmentation , initial disparity acquirement , initial plane fitting , region and plane refinement , and plane labeling .
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此外,由于采用了基于SSD算法的特征点立体匹配算法,并应用外极线约束和视差梯度约束,提高了匹配算法的精度和鲁棒性。
Moreover , the Precision and robustness of the algorithm was enhanced since the algorithm of image matching of feature Points based on SSDA algorithm , the epipolar restriction and the Parallax gradient restriction is applied .