IMAGING DEVICE, ONLINE GAME SYSTEM, OPERATION OBJECT, INPUT METHOD, IMAGE ANALYSIS DEVICE, IMAGE ANALYSIS METHOD, AND RECORDING MEDIUM

摘要

An infrared light emitting diode (11) intermittently emits infrared light. The infrared light is retroreflected from a retroreflection sheet (4) of an operation object (3-N) and is inputted into an image sensor (21). The image sensor (21) generates a differential image between an ON-mode image and an OFF-mode image. An MCU (23) analyzes the differential image, detects a motion of the operation object (3-N), and transmits the detected result (trigger, position, area) to a terminal (5). The terminal (5-N) reflects the received detection result in an online game process and transmits the detection result to a host computer (31). The host computer (31) reflects the received detection result in a process and transmits the result to other terminal (5-N). The other terminal (5-N) reflects the received detection result in an online game process.