Academy of Mathematics and Systems Science, CAS
Colloquia & Seminars

Speaker:	Professor Tieyong Zeng,The Chinese University of Hong Kong
Inviter:	Associate Professor Chong Chen
Title:	Rank-One Prior: Real-Time Scene Recovery
Language:	Chinese
Time & Venue:	2023.09.09 16:00-17:00 Z301
Abstract:	Scene recovery is a fundamental imaging task with several practical applications, including video surveillance and autonomous vehicles, etc. In this talk, we provide a new real-time scene recovery framework to restore degraded images under different weather/imaging conditions, such as underwater, sand dust and haze. A degraded image can actually be seen as a superimposition of a clear image with the same color imaging environment (underwater, sand or haze, etc.). Mathematically, we can introduce a rank-one matrix to characterize this phenomenon, i.e., rank-one prior (ROP). Using the prior, a direct method with the complexity O(N) is derived for real-time recovery. For general cases, we develop ROP + to further improve the recovery performance. Comprehensive experiments of the scene recovery illustrate that our method outperforms competitively several state-of-the-art imaging methods in terms of efficiency and robustness.