Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Analysis of detection bandwidth limitations in time-stretch-based single-pixel imaging systems

Not Accessible

Your library or personal account may give you access

Abstract

Single-pixel imaging (SPI) has recently attracted considerable attention in magnetic resonance imaging and remote sensing for its data compression capability and broad operational wavelength range. However, the frame rates of single-pixel cameras are largely limited by the response time of digital micromirror devices (DMDs). To circumvent this challenge, a novel SPI technique called time-stretch-based single-pixel imaging (TSSPI) is proposed, which can increase the imaging speed of single-pixel cameras based on DMD by over 3 orders of magnitude. In the TSSPI system, photodetection bandwidth and pulse repetition rate are critical parameters influencing the quality of reconstructed images. In this paper, we quantitatively analyze their effects on reconstruction accuracy through simulation and experiment for the first time. Photodetectors with various bandwidths are separately used to acquire the same number of measurements for image reconstruction and the peak signal-to-noise ratios of the reconstructed images are calculated to evaluate the reconstruction accuracy. We experimentally demonstrate that the ratio between photodetection bandwidth and pulse repetition rate has a strong impact on reconstruction quality. A threshold for this ratio is estimated and high-quality image reconstruction can be achieved only above this threshold. In our experiment, a 400-MHz detection bandwidth is demonstrated to be an optimized parameter set which can balance the trade-off between the system cost and the reconstruction accuracy with respect to a 50-MHz pulse repetition rate. In addition, we also demonstrate that the ratio is related to the complexity of the illuminated scene.

© 2017 Optical Society of America

Full Article  |  PDF Article
More Like This
Adaptive regional single-pixel imaging based on the Fourier slice theorem

Hongzhi Jiang, Shuguang Zhu, Huijie Zhao, Bingjie Xu, and Xudong Li
Opt. Express 25(13) 15118-15130 (2017)

Single-pixel imaging based on metasurface fuzzy coding

Yusheng Liu, Yan Shi, Yingying Hu, Yadong Zhou, Rui Xu, and Chunlian Zhan
Appl. Opt. 63(3) 549-556 (2024)

Single pixel imaging at high pixel resolutions

Rafał Stojek, Anna Pastuszczak, Piotr Wróbel, and Rafał Kotyński
Opt. Express 30(13) 22730-22745 (2022)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved