POSITION POSTURE MEASURING METHOD AND DEVICE

摘要

A position posture measuring device for measuring position and posture with both stability and accuracy. An image showing one or more indexes arranged in a space is captured, and the indexes are detected from the captured image. When a plurality of indexes are detected, the distribution range is determined and an algorithm applied to the position posture computation is selected depending on the size (S3033, S3050, S3060). For example, if the indexes are distributed over a sufficiently wide range, six parameters of the position and posture of an imaging device are computed as unknown values (S3070). As the distribution range of the indexes are smaller, the degree of freedom of the unknown parameters to be determined is made smaller (S3035, S3025).