Abstract: An input operation detection device to detect input operation input to an image includes a first and second imaging parts and a processor to detect input operation based on data acquired by the first and second imaging parts. The image is divided into first and second images. The optical axes of imaging optical systems of the first and second imaging parts intersect with the image at points on the same side as installation position sides of the corresponding imaging parts with respect to the center of the corresponding images.

Abstract: An input operation detection device to detect input operation input to an image includes a first and second imaging parts and a processor to detect input operation based on data acquired by the first and second imaging parts. The image is divided into first and second images. The optical axes of imaging optical systems of the first and second imaging parts intersect with the image at points on the same side as installation position sides of the corresponding imaging parts with respect to the center of the corresponding images.

Abstract: According to an aspect of the present invention, an input-operation detection device for detecting a user input operation performed on at least a portion of a displayed image includes; a light emitter that emits detection light, an imaging unit including an imaging optical system and an image sensor and configured to capture an image of at least one of the displayed image and the input operation, and a processing unit that detects position, at which the input operation is performed, or motion, by which the input operation is provided, based on a result of image capture output from the imaging unit. The position where optical axis of the imaging optical system intersects a display surface of the displayed image and center of the displayed image are on the same side relative to a position where the imaging unit is mounted.