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The accuracy of the image is dependent on the quality parameters of camera. The camera parameters is obtained from the target calibration of the test bench in past. Recently, the image processing software can be dealt with the target-free calibration by internal programming. In this research, the images of unmanned aerial vehicle (UAV) are examined by two types of processes, target calibration and...
With the surveillance camera become more and more popular, people need to observe a large number of monitor at one time. In this paper, we propose a vision based indoor positioning for intelligent buildings to solve this problem. We capture a frame and make the Gaussian mixture learning for video background model. Then we do the background subtraction and get the foreground object. After we have the...
In this paper, we proposed a novel and simple gaze calibration procedure, namely Pattern Voting Scheme (PVS), for reducing the computing complex. The proposed method doesn't require multiple spatial coordinates to estimate the inner and outer parameters of the camera and without regard to the evaluation of accuracy. The iris location can be determined easy by using the voting weight. The PVS is a...
A leading obstacles detection and recognition method based on binocular vision is mainly described in this paper. An edge fitting method based on the regional border of fusion segmentation image is used in fitting the edge of road, a viable region and suspected obstacles are obtained through fusing the fusion segmentation image and fitted edge. The method of partial edge contour extraction is used...
Since the view direction of an oblique-viewing endoscope can be changed by rotating the scope cylinder to obtain a larger field of view, the rotation angle of the scope cylinder is one of the parameters in its camera model. In order to perform the augmented reality visualization in the surgery using the oblique-viewing endoscope, tracking of the rotation angle is required to determine the view direction...
This paper describes a self-calibration approach to hand-eye relation using a single point in the scene. Camera is required to observe one point in the scene at five (or more) pure translational motions and two (or more) pure rotational motions of manipulator. The motions of manipulator are accurately controlled and read, and the motions of camera are estimated from the disparity and the depth value...
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