
科学技术与工程

中国技术经济学会
Face Image Super-resolution Reconstruction Based on Adaptive Convolution and Joint Loss Function
Pei-yu LI , Ya-li ZHANG , Yi-bo ZHANG , Yi-chen ZHAO
Science Technology and Engineering ›› 2025, Vol. 25 ›› Issue (6) : 2442 -2452.
Content Aiming at the problems of single convolution model, insufficient Receptive field and inaccurate feedback information of single discriminant network in current face image super-resolution reconstruction algorithm, an algorithm based on adaptive convolution and joint Loss function was designed. A generation adversarial network architecture was used by the model. On the generator side, adaptive convolution was used to construct dual path residual blocks and further form efficient residual groups. It can independently learn feature weights extracted under different receptive fields and supplement missing information from a single branch. The subpixel convolution layers were used to complete quadruple reconstruction of face images. In terms of discriminators, Vgg and U-net architecture networks were used as dual discriminant networks, and dual discriminant results were used to calculate adversarial losses. The losses, content losses, and perceptual losses form a joint loss function. Experiments on the Celeba dataset show that compared with RWSA, this algorithm improves PSNR by 1.166 dB, SSIM by 0.037, LPIPS by 0.033, and PI by 0.119, compared with other mainstream algorithms, it has advantages in image detail clarity.
super-resolution reconstruction / adaptive convolution / joint loss function / generate countermeasure / convolutional neural network
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