Patent ID: 8320709
Filing Date: 2012-11-27
Classification: G06K,G06T

Abstract:
1. An information processing method of determining whether to calibrate information regarding a calibration target using images of markers existing in a real space captured by a movable image pickup unit, the method comprising the steps of: obtaining a first image captured by the image pickup unit from a first viewpoint; extracting markers from the first image; obtaining a position of the first viewpoint; calibrating the information regarding the calibration target using the markers extracted from the first image; determining a representative position of the markers extracted from the first image based on placement information of the markers; obtaining a second image captured by the image pickup unit from a second viewpoint after the image pickup unit has been moved from the first viewpoint to the second viewpoint such that the second viewpoint is different from the first viewpoint; obtaining a position of the second viewpoint; determining, on the basis of a positional relationship between the position of the first viewpoint, the representative position of the markers and the position of the second viewpoint, whether to calibrate the information regarding the calibration target using the second image; and calibrating the information regarding the calibration target using the second image in the case that it is determined to calibrate the information regarding the calibration target using the second image.