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Image Stitching Based on Discrete Wavelet Transform and Slope Fusion

  • Daochen Weng
  • Qianying ZhengEmail author
  • Bingkun Yang
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11909)

Abstract

The fusion algorithm of traditional image stitching does not fully consider the differences of the clarity of the two images, and the conventional Discrete Wavelet Transform algorithm would blur the image when applied to image stitching. Owing to these, an improved method based on Discrete Wavelet Transform and Slope Fusion is proposed. The proposed algorithm firstly performs Haar wavelet transform on the image to be fused to obtain a low-frequency component and multiple high-frequency components. Subsequently, the Slope Fusion method is used for the obtained low-frequency component and the sub-regional Slope Fusion method is used for the high-frequency components. Finally, the fused image is obtained by using the Inverse Discrete Wavelet Transform for the new low-frequency component and high-frequency components. The proposed algorithm can retain the information of direction and detail while taking full account of differences in image sharpness, all of those benefits help improve the quality of the fused image effectively. The experimental results show that the proposed algorithm can make the fused image clearer and objectively enhance multiple fusion indicators of the fused image.

Keywords

Image stitching Discrete Wavelet Transform Slope Fusion Inverse Discrete Wavelet Transform Fusion indicators 

Notes

Acknowledgements

The authors would like to acknowledge the supports by the National Natural Science Foundation of China (Grant No. 61471124), Key Industrial Guidance Projects of Fujian Science and Technology Department (Grant No. 2016H0016 and 2015H0021).

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.College of Physics and Information EngineeringFuzhou UniversityFuzhouChina

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