查询词典 Camera Buff

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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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。

A parametric study graphic nature of the projection, that is, they read the projective transformation, remained the same graphic nature of the geometry, the branches. 2D projective transformation is a more common transform method, used in the camera lens of the camera plane, and applied to various fields of study.

射影几何是研究图形的射影性质，即它们经过射影变换后，依然保持不变的图形性质的几何学分支学科。2D射影变换是一种较为常见的变换方法，发生在用透视摄像机对平面摄像的时候，并应用于各个研究领域。

What is your camera's flash range? Look it up in your camera manual.

那你的相机的有效距离又是多少呢？

If I did that, the rebuttal would be, Look, this is a camera. An EOS-1 SLR camera.

如果我那样做了，别人可能这么反驳我："看，这是一架EOS-1单反相机，所以它必须是最好的。"

By using his 120 medium format camera and Canon professional digital single lens reflex camera as his medium. His works has published in many famous magazines and newspaper, and he also received several awards on photography and video making in Canada, Taiwan, and Hong Kong.

李氏采用120中幅相机及佳能的专业单镜反光机及镜头捕捉镜头下的重要时刻，他的照片及录像作品均在多个著名的媒体中刊登作品，而且均在加拿大，台湾，及香港的比赛中取得多个奖项及提名。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。