A low-cost, color-calibrated reflective high dynamic range display

• DOI: 10.1167/10.7.397
• Publication Date: 2010-08-04T21:49:29Z
• Authors: D. Zhang; J. Ferwerda
• Keywords: Gamut; Color correction; Color management; Digital camera

High dynamic range (HDR) displays are enabling new advances in visual psychophysics, but commercial HDR both expensive, and difficult to calibrate colorimetrically. Homebrew incorporating LCD panels digital projectors relatively inexpensive can be calibrated, building such requires sophisticated technical skills. We have developed a low-cost, color-calibrated display for vision research that constructed used by researchers without the need specialized equipment or advanced engineering abilities. Inspired work of Bimber et al., this reflective incorporates an inkjet printer, video projector camera. To image, image is first processed through iCAM06 appearance model produce standard (SDR) sent printer. The then roughly positioned so its field covers print. Custom camera-based structured-light registration software automatically aligns projected printed images. A color calibration module measures print colors determines values send achieve best possible reproduction original image. This iCAM-based approach goes substantially beyond prior terms colorimetric accuracy. With respect intensity range, because area smaller than projector's typical size, maximum combined quite high, current has peak luminance around 2000 cd/m2 with greater 20,000:1. While print-based nature does limit usefulness interactive studies, do-it-yourself design, ability calibrated should make it valuable addition researcher's laboratory.