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A measuring system which mainly consists of a high precision motorized translation stage of one dimension, POINT GREY Flea2-14S3 CCD camera and LED light source was designed and constructed. Based on a detailed analysis for experiment results, the periodic changing law of system error of LED facula centroid location in this measuring system was found. The results indicate that based on Flea2-l4S3 CCD camera, the random error of facula centroid location is about 0.018 pixels, the system error is about 0.06 pixels, and the total error is about 0.063 pixels (1/15 pixels). According to the total error above, this CCD imager can be widely used in many measuring systems which count on facula centroid subpixel detection.

利用高精度一维电动平移台、POINT GREY Flea2-14S3 CCD相机和LED光源构建了测试系统，对测试结果进行研究和讨论，发现了测试系统LED光斑质心定位系统误差的周期性变化规律，计算得到了基于Flea2-14S3 CCD相机的光斑质心定位随机误差为0.018pixels，系统误差为0.06pixels，总体误差为0.063pixels（约1/15pixels），能够应用于以光斑质心检测为手段的测量系统中。

The embedded video encoder can process A/D transform of video signal, video compressing, network protocol processing and camera controlling. Hence the hardware of encoder includes H.263 Video Encoding Unit and Network Protocol Processing Unit based on TM1300, Network Interface Unit based on RTL8139C chip and Peripheral Extending Unit based on W77E58 which deals with camera controlling.

硬件设计由以下四个单元组成：以 TM1300为核心的视频编码单元和协议处理单元；采用 RTL8139C芯片的网络接口单元；以及单片机 W77E58为核心的完成摄像头控制和透明数据传输的外围扩展单元。

Most methods of view synthesis use the original images taken by camera moving around the object or scene, calibrated camera and rectified images for produceing perspectively correct views, and not completely handled visibility in synthesized views.

不同于相机需要标定、源图像的分辨率基本相同的常规方法，本文研究了一种利用未标定普通数码像机前向运动拍摄的序列图像，生成对应于当前虚拟视点图像的方案。

According to the imaging traits of the camera and the plane mirror, the non-linearity method is used to establish the mathematic model, which is provided by the image grabbing system of a camera and a plane mirror.

根据摄像机和平面镜的成像特点，采用非线方法建立了由摄像机和平面镜组成摄像系统的数学模型，并求出了摄像系统参数。

As the projector can conceptually be regarded as camera acting in reverse, the relation between projection plane of the projector and imaging plane of the camera is fixed.

进而， 利用投影仪的投射过程是摄像机成像过程的逆过程，建立投影仪的投射平面和摄像机的成像平面的对应关系，将"极线几何约束"应用到基于条纹投影的主动三维视觉的姿态估计问题，并在考虑测量数据受噪声影响的条件下，建立了求解视点姿态参量的数学模型。

The method comprises the following: a step of calibrating a camera, which is to utilize a Taylor series model to calibrate an omni-directional vision sensor so as to obtain internal parameters of the camera; a step of obtaining epipolar geometric relation, which comprises the steps of calculating an essential matrix between binocular omni-directional cameras and extracting the rotation and translation component of the cameras; a step of correcting an outer polar line, which is to correct the outer polar line of a shot omni-directional stereo image so as to allow a corrected polar quadratic curve to coincide with an image scan line; and a step of three-dimensional reconstruction, which is to carry out feature point matching to the corrected stereo image and calculate the three-dimensional coordinates of points according to matching results.

该方法的步骤包括：相机标定：利用泰勒级数模型对全向视觉传感器进行标定，得到相机内参；对极几何关系求取：包括计算双目全向相机之间的本质矩阵，并从中提取相机的旋转和平移分量；外极线校正：对所拍摄的全向立体图像对进行外极线校正，使校正后的极二次曲线与图像扫描线重合；三维重建：对校正后的立体图像对进行特征点匹配，根据匹配结果计算点的三维坐标。

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我们致力于家电产品，数码产品，通讯产品，消费电子产品，视听产品等领域的外观设计开发工作，涉及的产品有：数码摄像头，TV，液晶电视，手机，小灵通，可视电话，电脑机箱，U盘，DVD播放机，MP3，MP4，PMP，硬盘MP3，鼠标，键盘，移动硬盘，台灯，家庭智能终端，音箱，PORTABLE BOOMBOX，电子体重称，红外线体温计，烟雾、煤气报警器，指纹锁系列，保险柜，酒店锁，慢炖锅，披萨炉，五金家电等，车载DVD，PDA，GPS，蓝牙耳机BULETEETH，电吹风， MP3音箱，考勤机，门禁，机顶盒，数码相机等。

From the concept, it does the exact opposite of a camera: instead of recording an image of the environment by means of an orthographic or perspective projection, projective texture mapping projects an image onto the environment, by using a matrix very similar to the one a camera uses.

从这个概念上，它与摄象机正好相反，不是通过正交或者透视投影来记录环境的图象，而是把图象投射到环境上，通过使用类似于摄象机使用的矩阵。

Research on the theory of structure light sensor Originating from the principles of projective and perspective transformation, for the first time, the models of coordinate transformation between workpiece and camera with arbitrary angle of laser light and camera are presented. The model give some very important rules for the design of structure light sensor, and is very important to the design of structure light sensor, the sensor designed based on the theory above is used in automatic welding.

结构光传感器的理论研究依据透视变换理论给出了光源倾斜照射和摄象机倾斜接收情况下，被检测物体与摄象机之间的一般坐标变换数学模型，该模型揭示出结构光传感器设计时应遵循的一些原则，对结构光传感器的设计具有非常重要的指导意义，基于该模型设计的结构光传感器已在自动焊接实验中获得了成功的应用。

Originating from the principles of projective and perspective transformation, the models of coordinate transformation between workpiece and camera with arbitrary angle of laser light and camera are presented.

对电弧光的干扰进行了深入的研究，建立了电弧干扰的光照模型；依据透视变换理论，给出了光源倾斜照射和摄像机倾斜接收情况下，被检测物体与摄像机之间的一般坐标变换数学模型。

It is possible that houses were outrageously priced one year ago and that they are still priced much higher than the national average.

情况有可能是，这里的房价曾贵得离谱，现在的房价仍然远高于全国的平均指数。

This is a mother's love for her child.

这是母亲对孩子的关爱。