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Proceedings Paper

Spatial noise in microdisplays for near-to-eye applications
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Paper Abstract

Spatial noise in imaging systems has been characterized and its impact on image quality metrics has been addressed primarily with respect to the introduction of this noise at the sensor component. However, sensor fixed pattern noise is not the only source of fixed pattern noise in an imaging system. Display fixed pattern noise cannot be easily mitigated in processing and, therefore, must be addressed. In this paper, a thorough examination of the amount and the effect of display fixed pattern noise is presented. The specific manifestation of display fixed pattern noise is dependent upon the display technology. Utilizing a calibrated camera, US Army RDECOM CERDEC NVESD has developed a microdisplay (μdisplay) spatial noise data collection capability. Noise and signal power spectra were used to characterize the display signal to noise ratio (SNR) as a function of spatial frequency analogous to the minimum resolvable temperature difference (MRTD) of a thermal sensor. The goal of this study is to establish a measurement technique to characterize μdisplay limiting performance to assist in proper imaging system specification.

Paper Details

Date Published: 1 June 2011
PDF: 10 pages
Proc. SPIE 8041, Head- and Helmet-Mounted Displays XVI: Design and Applications, 80410B (1 June 2011); doi: 10.1117/12.888051
Show Author Affiliations
Arthur R. Hastings Jr., U.S. Army Night Vision & Electronic Sensors Directorate (United States)
Russell S. Draper, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
Michael V. Wood, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
David A. Fellowes, U.S. Army Night Vision & Electronic Sensors Directorate (United States)


Published in SPIE Proceedings Vol. 8041:
Head- and Helmet-Mounted Displays XVI: Design and Applications
Peter L. Marasco; Paul R. Havig, Editor(s)

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