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    • 74. 发明授权
    • Range finder and camera
    • 测距仪和相机
    • US06587183B1
    • 2003-07-01
    • US09463530
    • 2000-03-30
    • Kenya UomoriTakeo AzumaAtsushi Morimura
    • Kenya UomoriTakeo AzumaAtsushi Morimura
    • G01C300
    • H04N5/272G01B11/25G01C3/08G01S17/46G01S17/48G02B7/32G06T7/521
    • A range finder device, for measuring, when a plurality of projected lights having radiation patterns whose light intensity differs three-dimensional space-wise are irradiated onto an object from a light source on a time-sharing basis to image-pick up reflected light of the projected light from the object with a camera, a distance using the light intensity of an image picked up, characterized in that, with respect to each of a plurality of surfaces including the center of the light source and the center of a lens, there is obtained, in advance, relation between an angle of each projected light from the light source and light intensity ratio in each surface, characterized in that, at the time of actual distance measurement, light intensity of each pixel of the camera is measured, and on the basis of the light intensity thus measured, and relation between the angle and the light intensity ratio on a predetermined surface corresponding to a coordinate position of the pixel measured, there is obtained the angle corresponding to the light intensity of the predetermined pixel thus measured, and characterized in that, on the basis of these light intensity measured, the angles obtained and further two-dimensional coordinate position information on the predetermined pixel on the image, a distance to the object is calculated.
    • 一种测距装置,用于测量当具有光强度不同于立体空间的辐射图案的多个投影光在时间分配的基础上从光源照射到物体上,以对图像拾取反射光 使用摄像机的物体的投射光,使用拾取的图像的光强度的距离,其特征在于,对于包括光源的中心和透镜中心的多个表面中的每一个,在那里 预先获得来自光源的每个投影光的角度和各表面的光强度之间的关系,其特征在于,在实际距离测量时,测量照相机的每个像素的光强度,并且 基于如此测量的光强度,以及与测量的像素的坐标位置相对应的预定表面上的角度和光强度比之间的关系,那里 获得与所测量的预定像素的光强度相对应的角度,其特征在于,基于测量的这些光强度,获得的角度和关于图像上的预定像素的另外的二维坐标位置信息, 计算到物体的距离。