基于可逆神经网络的神经辐射场水印OA北大核心CSTPCD

Aimin at the copyright problem surrounding 3 D models of neural radiation fields focused on implicit representation,this paper tackled this issue by considering the embedding and extraction of neural radiation field watermarks as inverse prob-lems of image transformations,and proposed a scheme for protecting the copyright of neural radiation fields using invertible neural network watermarking.This scheme utilized 2D image watermarking technology to safeguard 3D scenes.In the forward process of the invertible network,the watermark was embedded in the training image of the neural radiation field.In the re-verse process,the watermark was extracted from the image rendered by the neural radiation field.This ensured copyright pro-tection for both the neural radiation field and the 3D scene.However,the rendering process of the neural radiation field may result in the loss of watermark information.To address this,the paper introduced an image quality enhancement module.This module utilized a neural network to recover the rendered image and subsequently extract the watermark.Simultaneously,the watermark was embedded in each training image to train the neural radiation field.This enabled the extraction of watermark in-formation from multiple viewpoints.Experimental results demonstrate that the watermarking scheme outlined in this paper ef-fectively achieves copyright protection and highlights the feasibility of the proposed approach.