Image Stitching and Rectification for Hand-Held Cameras

Publication Date: 8/23/2020

Event: ECCV 2020 – The 16th European Conference on Computer Vision, Glasgow, UK

Reference: https://www.ecva.net/papers/eccv_2020/papers_ECCV/papers/123520239.pdf

Authors: Bingbing Zhuang, NEC Laboratories America, Inc.; Quoc-Huy Tran, NEC Laboratories America, Inc.

Abstract: In this paper, we derive a new differential homography that can account for the scanline-varying camera poses in Rolling Shutter (RS) cameras, and demonstrate its application to carry out RS-aware image stitching and rectification at one stroke. Despite the high complexity of RS geometry, we focus in this paper on a special yet common input — two consecutive frames from a video stream, wherein the inter-frame motion is restricted from being arbitrarily large. This allows us to adopt simpler differential motion model, leading to a straightforward and practical minimal solver. To deal with non-planar scene and camera parallax in stitching, we further propose an RS-aware spatially-varying homogarphy field in the principle of As-Projective-As-Possible (APAP). We show superior performance over state-of-the-art methods both in RS image stitching and rectification, especially for images captured by hand-held shaking cameras.

Publication Link: https://www.ecva.net/papers/eccv_2020/papers_ECCV/html/184_ECCV_2020_paper.php