Abstandsmesser, welcher stereoskopische Bilder verwendet

摘要

In a method of examining the reliability of distance data calculated based on stereoscopic images, a pair of photographed images is obtained by taking pictures of a test chart 21 carrying a brightness pattern with a stereo camera, the test chart 21 being placed in a shooting direction of the stereo camera. The distance data is calculated from these photographed images by stereo matching. Using the distance data concerning the test chart shown in the photographed images as the evaluation samples, a histogram showing a relationship between distance values of evaluation samples and Their frequency of occurrence is produced. The reliability of the calculated distance data is judged by evaluating properties of the histogram thus produced based on the distance between the stereo camera and the test chart.