Deep Natural Image Reconstruction from Human Brain Activity Based on Conditional Progressively Growing Generative Adversarial Networks

• 作者: Wei Huang Hongmei Yan Chong Wang Xiaoqing Yang Jiyi Li Zhentao Zuo Jiang Zhang Huafu Chen
• 来源期刊: 神经科学通报（英文版）
• 年，卷（期）: 2021,（3）
• 所属期刊栏目: Original Articles
• 页码范围: 369-379
• 页数: 11页
• 语种: 英文

摘要

Brain decoding based on functional magnetic resonance imaging has recently enabled the identification of visual perception and mental states.However,due to the limitations of sample size and the lack of an effective reconstruction model,accurate reconstruction of natural images is still a major challenge.The current,rapid development of deep learning models provides the possibility of overcoming these obstacles.Here,we propose a deep learning-based framework that includes a latent feature extractor,a latent feature decoder,and a natural image generator,to achieve the accurate reconstruction of natural images from brain activity.The latent feature extractor is used to extract the latent features of natural images.The latent feature decoder predicts the latent features of natural images based on the response signals from the higher visual cortex.The natural image generator is applied to generate reconstructed images from the predicted latent features of natural images and the response signals from the visual cortex.Quantitative and qualitative evaluations were conducted with test images.The results showed that the reconstructed image achieved comparable,accurate reproduction of the presented image in both high-level semantic category information and low-level pixel information.The framework we propose shows promise for decoding the brain activity.