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

Optimum method of applying and removing a shaped-function signal for low-light-level image detection

Not Accessible

Your library or personal account may give you access

Abstract

This paper presents an optimum method that exploits the principle of diffuse scattering and employs the least squares method (LSM) to apply and remove a shaped-function signal for low-light-level image detection. With the help of a sawtooth-shaped-function light signal applied to an image sensor, the LSM is employed to remove the sawtooth signal from the captured images and restore the weak image signal. The experiment process and result verify that this method can not only maintain the capability of upgrading the image sensor’s sensitivity and signal-to-noise ratio like the previous method, but it also can improve the imaging speed in the low-light level, decrease the computation cost of the extraction process, and eliminate the influence of the environment light to satisfy the requirement of long-distance detection.

© 2013 Optical Society of America

Full Article  |  PDF Article
More Like This
Employment of frame accumulation and shaped function for upgrading low-light-level image detection sensitivity

Gang Li, Hongying Tang, Dongsung Kim, Jean Gao, and Ling Lin
Opt. Lett. 37(8) 1361-1363 (2012)

Tunable-liquid-crystal-filter-based low-light-level color night vision system and its image processing method

Tao Yuan, Zhenghao Han, Li Li, Weiqi Jin, Xia Wang, Hailin Wang, and Xiaofeng Bai
Appl. Opt. 58(18) 4947-4955 (2019)

Dual-slit confocal light sheet microscopy for in vivo whole-brain imaging of zebrafish

Zhe Yang, Li Mei, Fei Xia, Qingming Luo, Ling Fu, and Hui Gong
Biomed. Opt. Express 6(5) 1797-1811 (2015)

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 (4)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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 (13)

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