OPERATION INPUT DEVICE

摘要

To provide an operation input device capable of realizing operation input by changing the posture of the operation input device even without a posture determining sensor. This is an operation input device for use by a user while being held by his/her hand, for obtaining a captured image captured by an image capturing unit provided to the operation input device, and determining the posture of the operation input device, based on the result of analysis on the captured image obtained.