MULTI-TOUCH INPUT METHOD USING IMAGE ANALYSIS AND A SYSTEM THEREOF WITH HAND GESTURE RECOGNITION

摘要

PURPOSE: A multi-touch input method using image analysis and a system thereof are provided to use a hand gesture, thereby accurately recognizing touch without considering illumination change from an image which is photographed in illumination change environment.;CONSTITUTION: An image obtainment unit (110) obtains an image including a part of a body which touches a specific area. A skin area detection unit (120) detects a skin area from the image. A hand area detection unit (130) detects a hand area from the skin area through pixel labeling. A gravity center detection unit (150) detects a point of gravity center in the hand area. A feature point detection unit (160) forms a concentric circle from the point of the gravity center and detects a feature point which intersects the concentric circle with a finger joint of the hand area. A touch determination unit (170) determines touch by calculating distance between the point of the gravity center and the feature point.;COPYRIGHT KIPO 2013;[Reference numerals] (110) Image obtainment unit; (112) Image input module; (114) Image information conversion module; (120) Skin area detection unit; (130) Hand area detection unit; (132) Binary signal detection module; (134) Leveling module; (136) Hand region determination module; (138) Detection module; (140) Noise filtering unit; (142) Erosion calculation module; (144) Expansion calculation module; (146) Open calculation module; (148) Close calculation unit; (150) Gravity center detection unit; (160) Feature point detection unit; (170) Touch determination unit; (172) Distance calculation unit; (174) Selection determination unit