|제목(국문)||컨볼루셔널 신경망과 케스케이드 안면 특징점 검출기를 이용한 얼굴의 특징점 분류|
|제목(영문)||Facial Point Classifier using Convolution Neural Network and Cascade Facial Point Detector|
고광은 (Kwang-Eun Ko ,중앙대학교 전자전기공학부 ) ▷공저자네트워크등록하기
심귀보 (Kwee-Bo Sim ,중앙대학교 전기전자공학부 ) ▷공저자네트워크등록하기
Nowadays many people have an interest in facial expression and the behavior of people. These are human-robot interaction (HRI) researchers utilize digital image processing, pattern recognition and machine learning for their studies. Facial feature point detector algorithms are very important for face recognition, gaze tracking, expression, and emotion recognition. In this paper, a cascade facial feature point detector is used for finding facial feature points such as the eyes, nose and mouth. However, the detector has difficulty extracting the feature points from several images, because images have different conditions such as size, color, brightness, etc. Therefore, in this paper, we propose an algorithm using a modified cascade facial feature point detector using a convolutional neural network. The structure of the convolution neural network is based on LeNet-5 of Yann LeCun. For input data of the convolutional neural network, outputs from a cascade facial feature point detector that have color and gray images were used. The images were resized to 32x32 . In addition, the gray images were made into the TIN format. The gray and color images are the basis for the convolution neural network. Then, we classified about 1,200 testing images that show SUbjects. This research found that the proposed method is more accurate than a cascade facial feature point detector, because the algorithm provides modified results from the cascade facial feature point detector.
|keyword||cascade facial point detector, convolutional neural network, TIN format, human-robot interaction|