arxiveess.IVcs.CVphysics.optics2026-07-24
The Lift Spectrum: How Measurement-to-Space Adaptivity Shapes Robustness in Image-Free Single-Pixel Sensing
Yuyuan Han, Jingwei Li, Long Qiu, Chong Wang, Wenxuan Hao, Jiangyu Han, et al.
Single-pixel sensing encodes a scene as a short sequence of coded measurements, and image-free methods infer the task directly from that sequence. Removing reconstruction does not remove the difficulty: it relocates it to the lift, the map from 1D measurements to a 2D representat…