Abstract
We describe the design, construction, calibration, and characterization of a multi-primary high dynamic range (MPHDR) display system for use in vision research. The MPHDR display is the first system to our knowledge to allow for spatially controllable, high dynamic range stimulus generation using multiple primaries. We demonstrate the high luminance, high dynamic range, and wide color gamut output of the MPHDR display. During characterization, the MPHDR display achieved a maximum luminance of , a maximum contrast range of , and an expanded color gamut tailored to dedicated vision research tasks that spans beyond traditional sRGB displays. We discuss how the MPHDR display could be optimized for psychophysical experiments with photoreceptor isolating stimuli achieved through the method of silent substitution. We present an example case of a range of metameric pairs of melanopsin isolating stimuli across different luminance levels, from an available melanopsin contrast of 117% at to a melanopsin contrast of 23% at .
Highlights
The first stage in the visual pathway is the absorption of photons of light within light-sensitive photoreceptor cells
The hardware system design is inspired by earlier work that was based on combination of a digital light processing (DLP) projector and a liquid crystal display (LCD) [24]
We present measurements taken from the multi-primary HDR (MPHDR) display that demonstrate the key benefits of the display over existing display systems and the ability of the MPHDR display to generate photoreceptor isolating stimuli
Summary
The first stage in the visual pathway is the absorption of photons of light within light-sensitive photoreceptor cells. The spectral sensitivities of all five photoreceptor classes overlap, meaning that it is impossible to find a single wavelength on the visible spectrum that will activate only one of the photoreceptor classes. Such a wavelength would be desirable, as this would be a simple solution to the problem of independent isolation of the photoreceptors. If we can find two spectra that produce the same response in four of the five photoreceptor classes, but a different response in the fifth photoreceptor class, we can exchange the two spectra to achieve isolation of an individual photoreceptor class.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
