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中文论文题目: |
Active Rectification of Curved Document Images Using Structured Beams
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英文论文题目: |
Active Rectification of Curved Document Images Using Structured Beams
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论文题目英文: |
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作者: |
Meng, Gaofeng
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论文出处: |
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刊物名称: |
INTERNATIONAL JOURNAL OF COMPUTER VISION
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年: |
2017
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卷: |
122 |
期: |
1 |
页: |
34-60 |
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摘要: |
We propose an active method to rectify the geometric and photometric distortions in a document image. This method uses structured beams projected upon the curved document page to recover the spatial curves on it. A developable surface is interpolated to the curves by finding the correspondence between them. To correct the geometric distortion, the estimated developable surface is finally flattened onto a plane by explicitly solving a system of ordinary differential equations. The recovered 3D page shape, together with a Lambertian illumination model as guidance, is further used to rectify the non-uniform illumination in the images. Experimental results based on a variety of synthetic and real-captured document images demonstrate the effectiveness and efficiency of the proposed method. |
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