Image stitching with parallax is still a challenging task. Existing methods often struggle to maintain both the local and global structures of the image while reducing alignment artifacts and warping distortions. In this paper, we propose a novel approach that utilizes epipolar geometry to establish a warping technique based on the epipolar displacement field. Initially, the warping rule for pixels in the epipolar geometry is established through the infinite homography. Subsequently, the epipolar displacement field, which represents the sliding distance of the warped pixel along the epipolar line, is formulated by thin-plate splines based on the principle of local elastic deformation. The stitching result can be generated by inversely warping the pixels according to the epipolar displacement field. This method incorporates the epipolar constraints in the warping rule, which ensures high-quality alignment and maintains the projectivity of the panorama. Qualitative and quantitative comparative experiments demonstrate the competitiveness of the proposed method for stitching images with large parallax.

翻译：带视差的图像拼接仍是一项具有挑战性的任务。现有方法在减少对齐伪影和翘曲形变的同时，往往难以兼顾图像的局部与全局结构。本文提出一种新颖方法，利用极线几何构建基于极线位移场的翘曲技术。首先，通过无穷单应性建立极线几何中像素的翘曲规则；随后，基于局部弹性形变原理，采用薄板样条函数构建表征翘曲像素沿极线滑动距离的极线位移场。通过根据极线位移场反向翘曲像素，即可生成拼接结果。该方法将极线约束融入翘曲规则，既能保证高质量对齐，又可保持全景图的射影特性。定性与定量对比实验表明，所提方法在处理大视差图像拼接时具有显著竞争力。