A New Linear Approach for Camera Calibration with Sub-pixel Accuracy

Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (9): 56-58.

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A New Linear Approach for Camera Calibration with Sub-pixel Accuracy

ZHANG Ying

13363936393

Received:2006-04-04 Revised:1900-01-01 Online:2007-03-21 Published:2007-03-21

一种摄像机亚像素线性标定方法

张颖6

长安大学信息工程学院

通讯作者: 张颖6

Abstract

Abstract: A new linear approach with radial distortion model for camera calibration is presented. Firstly, the improved SUSAN detector is applied to obtain the sub-pixel coordinates of the corners. Then a camera model with radial distortion is established to calculate the intrinsic and extrinsic parameters of the camera. The experimental results demonstrate that the method is efficient and has a high accuracy.

Key words: Camera calibration, Corner extraction, Harris detector, Sub-pixels

摘要： 设计并实现了一种考虑径向畸变的逐步线性摄像机标定方法。采用一个方格图样模板进行标定，先利用改进SUSAN法精确提取角点的亚像素坐标，通过预标定获得主点坐标；然后在只考虑摄像机径向畸变的情况下建立摄像机模型，并求解摄像机内外参数；最后通过实验及误差分析表明：本标定方法具有较高的精度和较好的实时性

关键词: 摄像机标定, 角点提取, Harris算子, 亚像素

ZHANG Ying.

A New Linear Approach for Camera Calibration with Sub-pixel Accuracy

[J]. Computer Engineering and Applications, 2007, 43(9): 56-58.

张颖6.

一种摄像机亚像素线性标定方法

[J]. 计算机工程与应用, 2007, 43(9): 56-58.

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A New Linear Approach for Camera Calibration with Sub-pixel Accuracy

一种摄像机亚像素线性标定方法

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