利用表面投影模型实现广角立体视觉的高效技术

Philip W. Smith, Keith B. Johnson, M. Abidi
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引用次数: 11

摘要

尽管广角镜头具有增加视场的潜在优势,但它并不经常用于3D重建任务,因为(1)现有的高畸变镜头补偿算法在图像边缘处表现不佳,(2)直线图像重建程序对系统资源造成了很大的负担。本文提出了一种基于二次曲面的投影模型,该模型准确地表征了广角镜头在整个图像中的效果,并允许使用不需要非线性失真补偿的新颖特征匹配策略。
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Efficient techniques for wide-angle stereo vision using surface projection models
Wide-Angle lenses are not often used for 3D reconstruction tasks, in spite of the potential advantages offered by their increased field-of-view, because (1) existing algorithms for high-distortion lens compensation perform poorly at image extremities and (2) procedures for the reconstruction of recti-linear images place a large burden on system resources. In this paper, a projection model based on quadric surfaces is presented which accurately characterizes the effect of wide-angle lenses across the entire image and allows for the use of novel feature matching strategies that do not require nonlinear distortion compensation.
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