公开(公告)号：US11783446B2

公开(公告)日：2023-10-10

申请号：US17282635

申请日：2020-03-05

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Wei Zhong ,  Yuankai Xiang ,  Haojie Li ,  Zhihui Wang ,  Risheng Liu ,  Xin Fan ,  Zhongxuan Luo

IPC: G06T3/40 ,  G06T7/80 ,  G06T5/40

CPC classification number: G06T3/4038 ,  G06T5/40 ,  G06T7/80 ,  G06T2207/20021 ,  G06T2207/20221

Abstract: The present invention discloses a large-field-angle image real-time stitching method based on calibration. First, a calibration algorithm is used to solve the positional relationship between cameras, and the prior information is used to solve a homography matrix between images. The system is easy to build, and the program is simple and easy to implement; an overlapping area ROI of images can be calculated by the homography matrix between images, and an energy model thereof can be built and solved with a graph cut algorithm; the graph cut algorithm has high time complexity and depends on the number of nodes in a graph; here, images are divided into layers, and solutions are obtained layer by layer and iterated; and finally, a stitched image is further optimized by simple linear fusion of stitching seams and histogram equalization of the stitched image.