High dynamic range imaging technology for micro camera array

Po Hsiang Huang, Yuan Hsiang Maio, Jiun-In  Guo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Micro lens captures less light than normal lens dose, which makes low quality noise image, and current image sensor cannot preserve whole dynamic range in real world. HDR image with multi-exposure image overcomes the problems mentioned above. Choosing good exposure time is a seldom-discussed but important issue in HDR imaging technology. In this paper we propose a Histogram Based Exposure Time Selection (HBETS) method to automatically adjust proper exposure time of each lens for different scenes. Adopting the proposed weighting function restrains random distributed noise caused by micro-lens and produces a high quality HDR image. An integrated tone mapping methodology, which keeps all details in bright and dark parts when compressing the HDR image to LDR image for being displayed on monitors, is proposed. The result image has extended the dynamic range, that is, comprehensive information is provided. Eventually, we have implemented the proposed 4-CAM HDR system on Adlink MXC-6300 platform that can reach VGA video@10 fps.

Original languageEnglish
Title of host publication2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9786163618238
DOIs
StatePublished - 12 Feb 2014
Event2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014 - Chiang Mai, Thailand
Duration: 9 Dec 201412 Dec 2014

Publication series

Name2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014

Conference

Conference2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
CountryThailand
CityChiang Mai
Period9/12/1412/12/14

Fingerprint Dive into the research topics of 'High dynamic range imaging technology for micro camera array'. Together they form a unique fingerprint.

  • Cite this

    Huang, P. H., Maio, Y. H., & Guo, J-I. (2014). High dynamic range imaging technology for micro camera array. In 2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014 [7041726] (2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APSIPA.2014.7041726