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Proceedings Paper

High dynamic range fusion for enhanced vision
Author(s): Yuchi Liu; Yipeng Li; Qionghai Dai
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Paper Abstract

Fusing multispectral images, Enhanced Vision (EV) has been proven helpful to improve pilot's Situation Awareness (SA) under Degraded Vision Environment (DVE), such as low visibility or adverse observation conditions, which caused by fog, dust, weak light, backlighting, etc. Numerous methods are applied to enhance and fuse optical and infrared (IR) images for visual details to provide pilot with enough information as far as possible. However, most existing optical and IR imaging devices, for their inherent defects, fail to acquire wide span of light and only generate Low Dynamic Range images (LDR, Dynamic Range: range between the lightest and darkest areas), which causes the loss of useful details. Normal display devices can't reveal HDR details as well. The proposed paper introduces and expands High Dynamic Range (HDR) technologies to fuse optical and IR images, which has rarely been involved in the study of HDR Imaging to our knowledge, for Enhanced Vision to better pilot's Situation Awareness. Two major problems should be discussed. (1) The way to generate fused image with HDR information under DVE. (2) The method to effectively display fused HDR image with normal LDR monitors. Aiming at application environment, HDR fusion scheme is proposed and relevant methods are explored. The experimental results prove that our scheme is effective and would be beneficial to enhancing pilot's Situation Awareness under DVE.

Paper Details

Date Published: 3 May 2012
PDF: 8 pages
Proc. SPIE 8360, Airborne Intelligence, Surveillance, Reconnaissance (ISR) Systems and Applications IX, 83600S (3 May 2012); doi: 10.1117/12.919097
Show Author Affiliations
Yuchi Liu, Tsinghua Univ. (China)
Radar Academy (China)
Yipeng Li, Tsinghua Univ. (China)
Qionghai Dai, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 8360:
Airborne Intelligence, Surveillance, Reconnaissance (ISR) Systems and Applications IX
Daniel J. Henry; Davis A. Lange; Dale Linne von Berg; Darrell L. Young; Kenneth L. Bernier; Jeff J. Guell; Sreekanth Danny Rajan, Editor(s)

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