| 摘要 |
PURPOSE:To attain speed-up of processing and to obtain accurately a picture with distance by correcting a parallax of an object image to each visual point and selecting information existing on an object distance based on the correlativity of each image. CONSTITUTION:A range finder 13 obtains a rough distance d0 from TV cameras 2, 3 to a proper one point of an object 1, and a distance train having a proper interval around the distance d0 is set 14. A calculation circuit 15 calculates the parallax between the cameras 2, 3 relating to each objective set in advance and controls a circuit 16 performing left and right shift of a picture according to the magnitude of parallax so as to attain the correction of the parallax. Each picture element signal between both pictures subjected to the parallax correction is stored in a picture memory 18 via a difference absolute value calculating circuit 17. An adder circuit 19 obains the total sum of the picture element values in a small area in the memory 18 as a correlative value between both pictures at its center picture element position, this relative value is compared 21 with a threshold value and given to a memory 23 as a corresponding point detecting data. The memory 23 selects a plane of the distance di and writes the corresponding point detecting data to the corresponding picture element position.
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