关键词: 视频拼接, 能量函数, 最佳缝合线, 背景提取, 自适应融合

Abstract:

Focused on the issue of ghosting and artifacts due to moving foreground in video stitching, a video stitching method for minimizing parallax artifacts is proposed. The proposed method firstly improves the energy function according to the foreground region, grayscale difference, texture and color difference of the overlapping region image, and uses the energy minimization dynamic programming technique to find the optimal suture of the non-moving foreground region. Secondly, the Visual Background Extraction（VIBE） is used to detect the moving object and the selected optimal suture is updated in the subsequent video image. Finally, the fusion region is adaptively adjusted according to the color saturation difference, and the adaptive fusion method is used to realize the video image. The theoretical analysis and simulation results show that the method can effectively suppress the parallax artifacts caused by the moving foreground and there is no obvious seam.

Key words: video stitching, energy function, optimal stitching, background extraction, adaptive fusion