Bio-inspired display of polarization information using selected visual cues

Konstantin M. Yemelyanov; Shih-Schon Lin; William Q. Luis; Edward N. Pugh Jr.; Nader Engheta

doi:10.1117/12.506084

12 December 2003 Bio-inspired display of polarization information using selected visual cues

Konstantin M. Yemelyanov, Shih-Schon Lin, William Q. Luis, Edward N. Pugh Jr., Nader Engheta

Proceedings Volume 5158, Polarization Science and Remote Sensing; (2003) https://doi.org/10.1117/12.506084
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

For imaging systems the polarization of electromagnetic waves carries much potentially useful information about such features of the world as the surface shape, material contents, local curvature of objects, as well as about the relative locations of the source, object and imaging system. The imaging system of the human eye however, is “polarization-blind”, and cannot utilize the polarization of light without the aid of an artificial, polarization-sensitive instrument. Therefore, polarization information captured by a man-made polarimetric imaging system must be displayed to a human observer in the form of visual cues that are naturally processed by the human visual system, while essentially preserving the other important non-polarization information (such as spectral and intensity information) in an image. In other words, some forms of sensory substitution are needed for representing polarization “signals” without affecting other visual information such as color and brightness. We are investigating several bio-inspired representational methodologies for mapping polarization information into visual cues readily perceived by the human visual system, and determining which mappings are most suitable for specific applications such as object detection, navigation, sensing, scene classifications, and surface deformation. The visual cues and strategies we are exploring are the use of coherently moving dots superimposed on image to represent various range of polarization signals, overlaying textures with spatial and/or temporal signatures to segregate regions of image with differing polarization, modulating luminance and/or color contrast of scenes in terms of certain aspects of polarization values, and fusing polarization images into intensity-only images. In this talk, we will present samples of our findings in this area.

Citation Download Citation

Konstantin M. Yemelyanov, Shih-Schon Lin, William Q. Luis, Edward N. Pugh Jr., and Nader Engheta "Bio-inspired display of polarization information using selected visual cues", Proc. SPIE 5158, Polarization Science and Remote Sensing, (12 December 2003); https://doi.org/10.1117/12.506084

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