国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

Aiming at the problem of low calibration accuracy for large - scale camera in flight test, a high - precision CCD camera sub - area calibration method is proposed.The method first places the target evenly within the camera field of view,so that the target as wide as possible to fill the entire field of view.And then combined with the way the human eye to solve the target image plane position.Finally with the total station three-dimensional coordinates to form a precise spatial calibration point set.Then, the image plane is divided into N regions by equidistant direction in the transverse direction, and the camera parameters are calculated for each sub-region in combination with the method of the intersection.The results of calibration experiment show that the total error of the camera acquisition point is 4% lower than that of the single region calibration method after the regional calibration.Algorithm can achieve the specified area of the camera parameter calculation, the basic to meet the high precision industrial measurement requirements.The proposed sub-regional camera calibration method can be applied to the relatively constant position of the industrial visual measurement, especially in the field of large workpiece measurement.