作者投稿和查稿 主编审稿 专家审稿 编委审稿 远程编辑

计算机工程 ›› 2013, Vol. 39 ›› Issue (5): 261-265. doi: 10.3969/j.issn.1000-3428.2013.05.057

• 图形图像处理 • 上一篇    下一篇

基于消失线的长方体表面透视变形校正方法

郑全新,杨明强,李文辉   

  1. (山东大学信息科学与工程学院,济南 250100)
  • 收稿日期:2012-05-22 出版日期:2013-05-15 发布日期:2013-05-14
  • 作者简介:郑全新(1987-),男,硕士研究生,主研方向:数字图像处理,机器视觉;杨明强,副教授、博士;李文辉,硕士研究生
  • 基金资助:
    山东省中青年科学家科研奖励基金资助项目(BS2010DX019)

Perspective Distortion Correction Method of Cuboid’s Surface Based on Vanishing Line

ZHENG Quan-xin, YANG Ming-qiang, LI Wen-hui   

  1. (School of Information Science and Engineering, Shandong University, Jinan 250100, China)
  • Received:2012-05-22 Online:2013-05-15 Published:2013-05-14

摘要: 提出一种长方体表面透视变形的校正方法。通过长方体表面对边平行的性质确定图像的消失线,得到图像采集系统的成像模型,参照消失线的位置在图像平面和长方体表面所在平面上分别建立平面直角坐标系,并计算两坐标系的对应关系,按对应关系对图像进行插值处理。校正后的矩形图像的长宽比例和实际长方体表面的长宽比例严格相同。实验结果表明,该方法对长方体表面透视变形的校正有较好的效果。

关键词: 随机变换, 透视变形, 消失线, 消失点, 变换矩阵, 局部方差分布

Abstract: The images filmed by digital devices are always coupled with perspective distortions, which result in a failure of the layout processing and recognition. An effective perspective distortion correction method is presented to resolve the perspective distortion correction in cuboid’s surface. A vanishing line is determined by two pairs of parallel lines which are four edges of cuboid’s surface. The vanishing line is used to determine the direction and value of perspective distortion correction. An image can be obtained which is same as original cuboid’s surface except the size. Experimental results show that this method is accurately and effectively for perspective distortion correction in cuboid’s surface.

Key words: radon transformation, perspective distortion, vanishing line, vanishing point, transformation matrix, Local Variance Distribution(LVS)

中图分类号: