A super-resolution imaging system based on sub-pixel camera shifting

Gangping Liu, Qun Zhou, Linxia Zhang, Jun Ke

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In subpixel shift super-resolution (SR) imaging, accurate sub-pixel image registration is a key issue. Traditional superresolution reconstruction methods use a motion estimation algorithm to estimate a shift, and then adopt different methods for SR image reconstruct. In this paper, we focus on designing a SR imaging system, in which instead of moving a camera only, the imaging lens before the camera is also moved. By doing so, we reduce the shifting resolution requirement. As the camera with the lens move 13μm, the image moves 1μm. A set of 16 or 9 low-resolution (LR) images of a scene are captured with the system. The sub-pixel shifts between these LR images are 1μm and 2μm, respectively. Then Projection onto Convex Sets (POCS) algorithm is used to reconstruct the SR image. The results show much higher spatial resolution comparing to the LR images.

Original languageEnglish
Title of host publicationOptoelectronic Imaging and Multimedia Technology V
EditorsQionghai Dai, Tsutomu Shimura
PublisherSPIE
ISBN (Electronic)9781510622326
DOIs
Publication statusPublished - 2018
EventOptoelectronic Imaging and Multimedia Technology V 2018 - Beijing, China
Duration: 11 Oct 201812 Oct 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10817
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptoelectronic Imaging and Multimedia Technology V 2018
Country/TerritoryChina
CityBeijing
Period11/10/1812/10/18

Keywords

  • POCS
  • Sub-pixel shift
  • Super-resolution imaging

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