Research and analysis of deep learning image enhancement algorithm based on fractional differential

Abstract Aiming at the characteristics of the image processing technology course and the practicality, the deep learning and fractional differential wavelet algorithm are introduced into the image processing technology to solve the problem that the traditional algorithm loses the texture detail information during image enhancement. Through theoretical analysis, the fractional differential wavelet algorithm can greatly improve the high frequency components of the signal, enhance the IF component of the signal, and the very low frequency of the nonlinear retained signal. According to this, the application of fractional differential to image enhancement will make the edge of the image prominent. The enhanced image with clearer texture and image smoothing area information is preserved. Then, based on the classical fractional differential definition, the fractional difference equation is derived and the differential operator of the approximate depth learning method is constructed. Experiments with image enhancement show that the image enhancement method based on fractional differential operator is better than the traditional integer differential method.

[1]  S. Hemalatha,et al.  G-L fractional differential operator modified using auto-correlation function: Texture enhancement in images , 2017, Ain Shams Engineering Journal.

[2]  Fengqun Zhao,et al.  The Adaptive Fractional Order Differential Model for Image Enhancement Based on Segmentation , 2018, Int. J. Pattern Recognit. Artif. Intell..

[3]  Ji-Huan He A Tutorial Review on Fractal Spacetime and Fractional Calculus , 2014 .

[4]  Bo Li,et al.  Adaptive fractional differential approach and its application to medical image enhancement , 2015, Comput. Electr. Eng..

[5]  Weixing Wang,et al.  Depth Image Enhancement and Detection on NSCT and Fractional Differential , 2018, Wirel. Pers. Commun..

[6]  Sheng-Fuu Lin,et al.  Accuracy enhanced thermal face recognition , 2013 .

[7]  Zhang Xin,et al.  Image enhancement on fractional differential for road traffic and aerial images under bad weather and complicated situations , 2014 .

[8]  Adaptive Infrared Image Enhancement by Combining Differential Evolution with Stationary Wavelet Transformation , 2011 .

[9]  Wenda Zhao,et al.  Variational infrared image enhancement based on adaptive dual-threshold gradient field equalization , 2014 .

[10]  Stefan Klein,et al.  Lumen Segmentation and Motion Estimation in B-Mode and Contrast-Enhanced Ultrasound Images of the Carotid Artery in Patients With Atherosclerotic Plaque , 2015, IEEE Transactions on Medical Imaging.

[11]  Feng Zhang,et al.  Image restoration method based on fractional variable order differential , 2018, Multidimens. Syst. Signal Process..