论文标题
Diner:疾病不变的隐式神经代表
DINER: Disorder-Invariant Implicit Neural Representation
论文作者
论文摘要
隐式神经表示(INR)表征信号的属性是相应坐标的函数,该坐标是解决反问题的锋利武器。但是,INR的能力受网络培训中的频谱偏差的限制。在本文中,我们发现,可以通过重新将输入信号的坐标来解决此类与频率有关的问题,为此我们提出了这种不变性的隐式神经代表(DINER),通过将哈希表增强到传统的INR骨架上。给定离散信号共享相同的属性直方图和不同的排列顺序,哈希表可以将坐标投射到相同的分布中,可以使用后续的INR网络对映射信号进行更好的建模,从而显着缓解光谱偏见。实验不仅揭示了不同INR骨架(MLP与警报器)以及各种任务(图像/视频表示,相位检索和折射率恢复)的概括,而且还显示出优于最先进的质量和速度算法。
Implicit neural representation (INR) characterizes the attributes of a signal as a function of corresponding coordinates which emerges as a sharp weapon for solving inverse problems. However, the capacity of INR is limited by the spectral bias in the network training. In this paper, we find that such a frequency-related problem could be largely solved by re-arranging the coordinates of the input signal, for which we propose the disorder-invariant implicit neural representation (DINER) by augmenting a hash-table to a traditional INR backbone. Given discrete signals sharing the same histogram of attributes and different arrangement orders, the hash-table could project the coordinates into the same distribution for which the mapped signal can be better modeled using the subsequent INR network, leading to significantly alleviated spectral bias. Experiments not only reveal the generalization of the DINER for different INR backbones (MLP vs. SIREN) and various tasks (image/video representation, phase retrieval, and refractive index recovery) but also show the superiority over the state-of-the-art algorithms both in quality and speed.