NDLI: On Just Noticeable Difference for Bionic Eye

Content Provider	IEEE Xplore Digital Library
Author	Yi Li McCarthy, C. Barnes, N.
Copyright Year	2012
Description	Author affiliation: Coll. of Eng. & Comput. Sci., Australian Nat. Univ., Canberra, ACT, Australia (Yi Li; McCarthy, C.; Barnes, N.)
Abstract	We propose to use Just Noticeable Difference (JND) as the principle in visualizing results for image processing modules for prosthetic vision. Current Bionic Eye hardware implants have limited levels of separately perceivable brightness (i.e., low dynamic range in visualizing images). Therefore, it is important to ensure that the critical contrast must remain perceivable by maintaining of visual differences in downsampled images with reduced dynamic range. JND provides a mathematical framework for these psychophysics events. An increase by 1 in JND space corresponds to the smallest detectable change in visual space (i.e., just noticeable). Combining this principle and the dynamic range constraint, we cast the visualization problem to a linear optimization problem, which enables us to generate optimal visualization images. We demonstrate the usefulness of this principle on visualizing ground-plane segmentation. Experiments show that the proposed principle effectively provides critical visual information at different dynamic ranges, and generates consistent results for image sequences.
Sponsorship	IEEE Eng. Medicine Biol. Soc.
Starting Page	2961
Ending Page	2964
File Size	1995414
Page Count	4
File Format	PDF
ISBN	9781424441198
ISSN	1557170X
e-ISBN	9781457717871
DOI	10.1109/EMBC.2012.6346585
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-08-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Visualization Dynamic range Rendering (computer graphics) Brightness Image segmentation Heuristic algorithms Optimization
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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