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照相机标定
相关语句
  camera calibration
     Based on analysis of the calibration method of three-dimensioned photogrammetry, a new method of camera calibration using planar patterns was proposed. After several photos were obtained from different views, a linear solution was derived, followed by a nonlinear refinement based on the maximum likelihood criterion, the final parameters of the model were achieved.
     在分析三维摄影测量标定方法的基础上,提出了基于平面模板的照相机标定方法,即从不同视点拍摄多幅现场图像,先进行线性求解,然后基于极大似然准则进行非线性优化,获得照相机模型参数。
短句来源
  “照相机标定”译为未确定词的双语例句
     Determining a set of camera parameters is the first task of measuring with camera in traffic accident field.
     照相机标定是进行交通事故现场照相测量的首要工作。
短句来源
  相似匹配句对
     Picking up a camera
     捡到照相机
短句来源
     Panoramic Camera
     全景照相机
短句来源
     4, the mark.
     4、标定;
短句来源
     Determining a set of camera parameters is the first task of measuring with camera in traffic accident field.
     照相机标定是进行交通事故现场照相测量的首要工作。
短句来源
     CALIBRATION OF ELECTROMAGNETIC EMISSION INSTRUMENT
     电磁信息观测仪的标定
短句来源
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  camera calibration
Then camera calibration is done using the line correspondences between the 3D model and the image.
      
The measure can also simplify the camera calibration for determining the size of non-square pixel.
      
The main steps include camera calibration, the matching of motion and stereo images, 3D feature point correspondences and resolving the motion parameters.
      
In this paper, the symmetry of images of profiles of revolution has been extensively exploited and a practical and accurate technique of camera calibration from profiles alone has been developed.
      
Effects of camera calibration errors on static-eye and hand-eye visual servoing
      
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  calibrate camera
In classical photogrametry there exist many methods to calibrate camera.
      


Three questions are discussed in the paper: a). Using cube face to map omnidirectional image. The transforming formula between cubic surface and a plane are deduced and the transformation is carried out. This helps observe the omnidirectional image on the cube face. b). Accurate camera calibration is necessary in creating full omnidirectinal image. This paper analyses the error of an ordinary method for camera calibration, and discovers that the length difference between object and image is the main source of...

Three questions are discussed in the paper: a). Using cube face to map omnidirectional image. The transforming formula between cubic surface and a plane are deduced and the transformation is carried out. This helps observe the omnidirectional image on the cube face. b). Accurate camera calibration is necessary in creating full omnidirectinal image. This paper analyses the error of an ordinary method for camera calibration, and discovers that the length difference between object and image is the main source of calibration error. A method is proposed to correct the error. This makes the camera calibration result more accurate and effective. c). This paper proposes a method to browse on the basis of omnidirectional image. A simple virtual reality system is developed to implement the browsing in virtual space based on omnidirectional image. Users can browse in it much more freely than the same system based on panoramic image.

本文首先介绍了基于图象的绘制方法和全景图象 ,然后深入研究了三个与全方位全景图象有关的问题。 1、本文利用立方体表面来映射全方位全景图象 ,通过定向投影 ,推导了立方体表面与观察平面之间相互变换的公式 ,并实现了这些变换 ,这有利于在研究全方位全景图象时对立方体表面的图象进行观察。 2、准确的照相机标定是生成完整的全方位全景图象的必要条件 ,本文以常用的标准件标定法为基础 ,分析了其中产生误差的各项因素 ,认为与全方位全景图象有关的主要误差因素为物象距离 ,对此提出了一套修正方法 ,从而得到了一个简单有效的照相机标定方法。 3、本文提出了一个利用全方位全景图象来实现虚拟场景漫游的机制 ,实现了基于全方位全景图象的漫游 ,得到了一个简单的虚拟现实系统 ,用户在其中漫游的自由度远大于基于柱面全景图象的漫游系统。

Camera Calibrating is foundation while measurement with computer vision.According to camera theory it analyzes general calibrating theory,method and procedure,and studies calibrating characteristics in traffic accident scene photogrammetry,and analyzes the way by experiment.

照相机标定是利用计算机视觉技术进行测量的基础工作。根据相机成像的几何原理,分析了照相机的一般性标定原理、方法和过程,并根据在交通事故现场使用照相测量技术时标定的特点,结出了实验研究的解决方法。

Determining a set of camera parameters is the first task of measuring with camera in traffic accident field.Tsai method is a method in theory without perfect calibration procedure and validation.Under improving on Tsai method,it puts forward a perfect calibration steps,the whole calibration procedure showing the whole calibration process,and validates the arithmetic in the traffic accident field measuring with example.

照相机标定是进行交通事故现场照相测量的首要工作。相机标定的Tsai两步法是一种理论上的探讨,缺乏方法的完善性和完整的标定程序以及实际验证。对Tsai标定法进行了改进和完善,提出了完整的标定步骤,编制了相应的标定程序,并用实例对标定方法和程序进行了验证。

 
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