The variation in illumination is one of the main challenging problem for face recognition. It has been proven that in face recognition, differences caused by illumination variations are more significant than differences between individuals. Recognizing face reliably across changes in pose and illumination using PCA has proved to be a much harder problem because eigenfaces method comparing the intensity of the pixel. To solve this problem, this research proposes an online face recognition system using improved PCA for a service robot in indoor environment based on stereo vision. Tested images are improved by generating random values for varying the intensity of face images. A program for online training is also developed
where the tested images are captured real-time from camera. Varying illumination in tested images will increase the accuracy using ITS face database which its accuracy is 95.5 %, higher than ATT face databases as 95.4% and Indian face databases as 72%. The results from this experiment are still evaluated to be improved in the future.
Budiharto W. (2011). ONLINE TRAINING FOR FACE RECOGNITION SYSTEM USING IMPROVED PCA. ComTech, 2 (2), 1303-1310.
face recognition, illumination, improved PCA, service robot, ITS face database