期刊
JOURNAL OF SUPERCOMPUTING
卷 75, 期 2, 页码 704-718出版社
SPRINGER
DOI: 10.1007/s11227-017-2080-0
关键词
Medical image; Image denoising; Residual learning; CNN; Batch normalization
类别
资金
- MOE-Microsoft Key Laboratory of Natural Language Processing and Speech, Harbin Institute of Technology
- Major State Basic Research Development Program of China (973 Program) [2015CB351804]
- National Natural Science Foundation of China [61572155, 61672188, 61272386]
In medical imaging, denoising is very important for analysis of images, diagnosis and treatment of diseases. Currently, image denoising methods based on deep learning are effective, where the methods are however limited for the requirement of training sample size (i.e., not successful enough for small data size). Using small sample size, we design deep feed forward denoising convolutional neural networks by studying the model in deep framework, learning approach and regularization approach for medical image denoising. More specifically, we use residual learning as a learning approach and batch normalization as regularization in the deep model. Unlike most of the other image denoising approaches which directly learn the latent clean images, the residual learning approach learns the noise from the noisy images instead of the latent clean images where the denoised images are obtained by subtracting the learned residual from the noisy image. Moreover, batch normalization is integrated with residual learning to improve model learning accuracy and training time. We compute the quality of the reconstructed or denoised image in standard image quality metrics, peak signal to noise ratio and structural similarity and compare our model performance with some medical image denoising techniques. Experimental results reveal that our approach has better performance than some other methods.
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