Neural Radiance Fields (NeRF) have the potential to be a major representation of media. Since training a NeRF has never been an easy task, the protection of its model copyright should be a priority. In this paper, by analyzing the pros and cons of possible copyright protection solutions, we propose to protect the copyright of NeRF models by replacing the original color representation in NeRF with a watermarked color representation. Then, a distortion-resistant rendering scheme is designed to guarantee robust message extraction in 2D renderings of NeRF. Our proposed method can directly protect the copyright of NeRF models while maintaining high rendering quality and bit accuracy when compared among optional solutions.

翻译：神经辐射场（NeRF）具有成为重要媒体表示形式的潜力。由于训练NeRF并非易事，因此其模型版权保护应成为优先事项。本文通过分析现有版权保护方案的优缺点，提出了一种通过用带水印的颜色表示替换NeRF中原始颜色表示来保护NeRF模型版权的方法。随后，我们设计了一种抗失真渲染方案，以确保在NeRF的2D渲染中实现鲁棒的消息提取。与可选的解决方案相比，所提方法能够在保持高渲染质量和比特精度的同时，直接保护NeRF模型的版权。