Abstract

The main problems of panoramic photo stitching are discontinuity of stitching area and ghost, which has a great impact on the realization of panoramic video stitching. A panoramic photo mosaic method for asymmetric two-way flow field is proposed. In the analysis of asymmetric two-way flow field technology, through optical flow motion analysis and virtual close computer vision. Based on this technology, according to the similarity and smoothness between images, the discontinuous method is used to estimate the fusion area and realize image fusion processing. Considering that the image gray space contains a large amount of smoothing information, one-step method is selected as the flow field estimation method, and the panoramic photo mosaic is realized by combining the occlusion calculation and flow field estimation results. The empirical results show that the average stitching time of 10 panoramic images per frame is 21.588 s, and the minimum and maximum resolution of panoramic photos are 4040 respectively × 1080 dpi and 4580 × 1080 dpi. Subjective evaluation, objective evaluation and fuzzy evaluation methods show that 10 groups of video mosaic images have good mosaic effect. The research results provide the possibility for the high-quality implementation of panoramic photos and video stitching.

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