As a novel MGA (Multiscale Geometric Analysis) tool, shearlet is equipped with a rich mathematical structure similar to wavelet. In this paper, a novel image fusion method using Non-subsampled Shearlet Transform is proposed. First, the source images are decomposed into low-pass and high-pass subbands using NSST. Second, the high-pass subbands coefficients of the images are fused according to the average gradient. Third, the low-pass subbands coefficients of the images are fused by the weighted regional entropy. Finally, the image is reconstructed by the inverse non-subsampled shearlet transform. In the method, two sets of source images and five objective parameters are used to test the algorithm. The experimental results show that the proposed method is better than the conventional DWT-based and NSCT-based methods.
In order to achieve lower limb gait rehabilitation of patients, the normal walking gait trajectory was analyzed fully. According to the analysis results, a health hip and knee gait trajectory planning method was presented. The computer data analysis results show that the gait trajectory analytical expressions proposed can represent a normal gait accurately.
Aiming at the problem of face tracking under rapid moving process, a fast and robust tracking method is proposed. The possible position of face detected by the Camshift algorithm in the next frame is predicted by the square-root cubature Kalman filte (SCKF). Then, the localization and tracking of face are got frames by frames. The experimental results show that: the use of SCKF to solve the nonlinear effect caused by non-uniform motion of face and overcome the target loss problem of the linear Kalman algorithm. The proposed method greatly improves the tracking accuracy of face in the process of rapid movement.
Front-Lighting system of intelligent automobile can automatically provide the shape of lighting which is needed by car in present situation. Adjust and control the shape of lighting in bend. It can take different actions and automatic adjustment to the changes of vehicle driving, according to the road condition, time interval and weather variation .and thus it can realize the control. The paper introduces the AFS system structure diagram, working principle, and working process. It plays an important role in running safety at night.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.