Patent ID: 8692879
Filing Date: 2014-04-08
Classification: H04N

Abstract:
1. An image capturing system comprising: a position detection section for receiving light from a subject and detecting a position of an image capturing section capable of performing a pan operation and a tilt operation in a pan direction and a tilt direction; a coordinate system determination section for determining only one of a plurality of coordinate systems to use among at least a first coordinate system representing an absolute position of the image capturing section in the pan direction and the tilt direction and a second coordinate system representing a position of a subject image of the subject captured by the image capturing section in a screen; and a coordinate calculator for calculating coordinates representing the position of the image capturing section in the first coordinate system based on the detected position of the image capturing section when using the first coordinate system, and calculating coordinates representing the position of the subject image in the second coordinate system based on the detected position of the image capturing section when using the second coordinate system, wherein a first direction of coordinate axes in the tilt direction in the second coordinate system is set as 0°, the first direction to a direction perpendicular to the first direction are set as 0° to −90°, a second direction 180° from the first direction is also set as 0°, and the second direction to a direction perpendicular to the second direction are set as 0° to −90°, and when a misalignment of the image capturing section is detected in the image capturing section in the first coordinate system, at least one of the first direction and the second direction of coordinate axes in the second coordinate system is reset to compensate for the misalignment.