| 摘要 |
Large errors are prevented from being generated in a distance measuring method that employs two imaging means. The distance measuring method includes the steps of: photographing a subject using two imaging means, which are provided with a predetermined baseline length therebetween; and obtaining distance data regarding corresponding points within the photographed pairs of images. A first photography operation is performed with the baseline length at a desired value. Then, n photography operations are performed, while varying the baseline length by L(m+1/n), L(m+2/n) . . . L(m+(n−1)/n) at each photography operation, wherein L is a pixel pitch of the imaging means, m is an arbitrary natural number, and n is an integer greater than or equal to 2. Amounts of parallax within a predetermined range common to each photography operation are extracted by a record judging section, from among the amounts of parallax which are obtained by a parallax calculating section for the n photography operations. The distance data is obtained based on the extracted amounts of parallax.
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