基于單目視覺的頭部姿態(tài)估計算法的研究與實(shí)現(xiàn)
[Abstract]:The head attitude estimation is to estimate the three azimuth parameters of the head relative to the camera from the image or video, namely the pitch angle (pitch), yaw angle (yaw), roll angle (roll). This technology has been widely used in the field of monitoring system, automobile safety assistant driving system, game entertainment and so on. Based on this, the problem of head attitude estimation under monocular vision is deeply studied in this paper. The main work of this paper is as follows: 1. The key algorithms involved in the whole head pose estimation process are discussed in detail, including face detection, facial feature point model and attitude parameter estimation. The original POSIT algorithm is derived from the geometric point of view. In this paper, the POSIT algorithm is derived more succinctly from the algebraic point of view. This paper focuses on the application of two general monocular attitude estimation algorithms-POSIT algorithm and EPNP algorithm in head attitude estimation. The results show that the accuracy of the POSIT algorithm is slightly lower than that of the EPNP algorithm, but the former has significant advantages in speed, so in practical problems, A trade-off between speed and accuracy is needed to select the appropriate algorithm. In addition, a complete on-line demonstration system for head attitude estimation is built in this paper.
【學(xué)位授予單位】:北方工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TP391.41
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