公开(公告)号：WO2020023675A1

公开(公告)日：2020-01-30

申请号：PCT/US2019/043309

申请日：2019-07-24

Applicant: MAGIC LEAP, INC.

Inventor： SCHUCK, Miller Harry, III ,  ZHANG, Lei ,  GROSSMANN, Etienne Gregoire ,  SHAH, Nukul Sanjay ,  ZOHAR, Ohad ,  ZITO, Robert ,  MORLEY, Nicholas Ihle ,  SCHAEFER, Jason ,  JIA, Zhiheng ,  BROWY, Eric C. ,  CAPPS, Marshall Charles ,  TANAKA, Kazunori ,  VESOM, Grace ,  MONOS, John

IPC: G01J3/46 ,  G02B27/01 ,  G09G3/00

Abstract: A method for characterizing a digital color camera includes, for each of three primary colors used in a field sequential color virtual image, determining a conversion model for each color using RGB values and the color-measurement values. For each primary color, the method includes illuminating a display device using an input light beam of a primary color having spectral properties representative of a light beam in a virtual image in a wearable device. The method includes capturing, with the digital color camera, an image of the display device, and determining, from the image, RGB values for each primary color. The method includes capturing, with a color-measurement device, a color-measurement value associated with each corresponding primary color at the display device, thereby acquiring a color-measurement value in an absolute color space. A conversion model for each color is determined using RGB values and the color-measurement values.