Tunable spatiotemporal resolution photoacoustic microscopy by combining quasi-periodic scanning and register-fusion algorithm. (1st March 2022)

• Record Type: Journal Article
• Authors: Li, Jing; Wu, Shiqing; Tao, Chao; Liu, Xiaojun
• Is Part Of: Applied physics express. Volume 15:Number 3(2022)
• Publication Date: 2022-03-01
• Subjects: photoacoustic microscopy -- quasi-periodic scanning -- register-fusion algorithm -- tunable spatiotemporal resolution; Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.35848/1882-0786/ac5502
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: Quasi-periodic scanning combined with a register-fusion algorithm is proposed to realize tunable spatiotemporal resolution photoacoustic microscopy. Quasi-periodic scanning involves an irrational number ratio for the periods of scanning signals in two directions. It can provide sub-pixel spatial sampling for each frame. The proposed method can adjust the temporal and spatial resolutions by changing the data length for image reconstruction. For moving targets, the method can obtain a series of low-resolution images with a high imaging frame rate. A high-spatial-resolution image can be fused from these images using the register-fusion algorithm. The proposed method can acquire both motion and structural details of moving targets.