Wall Disappear and Invasion Sensing Device and Method thereof

摘要

The present invention provides a method for detecting wall fading and a fingertip detection method using an infrared light source, comprising the steps of calculating a basic image based on an IR LED light source, filtering the calculated image to remove noise, Storing a reference value in a memory; diverting the IR light source to a sensing surface; imaging a sensing surface of the camera and calculating a difference value between the received image value and a reference value stored in the memory; Calculating a change amount by calculating a total value of the binarized pixels; and determining whether or not an alarm is issued based on the change amount.