INPUT METHOD, INPUT SYSTEM AND INPUT DEVICE OF VISION DIRECTING TYPE MOUSE USING MONOCULAR CAMERA CALIBRATION TECHNIQUE

摘要

An input method and an input system of a visual pointing type mouse are applied to precisely indicate display contents on a display screen without contact. The mouse input system includes: a host computer, a display screen (18) coupled to the host computer, a planar target comprising a characteristic target point, a monocular image sensor (100), a control function unit (102), a processing circuit (104) and an information receiving and processing apparatus. The method includes: the monocular image sensor (100) points to the target area to collect images; the control function unit (102) generates various control function signals; the processing circuit (104) performs an image information processing and calculates imaging parameters of a monocular camera using monocular camera calibration technique, thereby figures out the display coordinates of a cursor, and transmits the coordinate information and the control function signals to the information receiving and processing apparatus; the information receiving and processing apparatus receives the display coordinates of the cursor and the control function signals transmitted by the processing circuit (104), and informs the computer operating system to display the cursor or other image objects at the display coordinates on the display screen (18).