Abstract：The performance of image super-resolution reconstruction networks is improved by deepening the depth.However,deepening the network makes the number of parameters increase rapidly,and thus it is hard to train the network and store the memory.To reduce the scale of the deep network and keep its reconstruction performance as much as possible,a concise recursive multi-scale convolutional network is proposed for super-resolution reconstruction based on the concepts of recursion and multi-scale.Firstly,the multi-scale module is employed to extract the features of the image with different scales.Then,the network is deepened by the recursive operation without increasing the number of network parameters.Finally,the outputs of each recursive operation are fused as the input for the reconstruction part.Experimental results show that the network parameters of the proposed method are fewer than those of some existing super-resolution methods with better reconstruction results.
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2020, Vol. 33 
