맵핑 테이블을 이용한 전역 밝기 보상 = Global Intensity Compensation using Mapping Table

다국어 초록 (Multilingual Abstract)

This paper presents a new global intensity compensation method for extracting moving object in a visual surveillance system by compensating time variant intensity changes of background region. The method that compensates a little changes of intensity due to time variant illumination change and automatic gain control of camera is called global intensity compensation. The proposed method expresses global intensity change with a mapping table to describe complex form of intensity change while the previous method models this global intensity change with a simple function as a straight line. The proposed method builds the mapping table by calculating the cross histogram between two images and then by selecting an initial point for generating the mapping table by using Hough transform applied to the cross histogram image. Then starting from the initial point, the mapping table is generated according to the proposed algorithm based on the assumption that reflects the characteristic of global intensity change. Experimental results show that the proposed method makes the compensation error much smaller than the previous GIC method

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 기존방법 소개
• 3. 제안된 기법
• 4. 실험 결과
• 5. 결론
• 참고문헌