Magic Leap, Inc.

Nukul Sanjay Shah

Etienne Gregoire Grossmann

Po-Kang Huang

Samuel A Miller

Wenyi Zhao

Lionel Ernest Edwin

Michael Robert Johnson

Brian Christopher Clark

Miller Harry Schuck, Iii

Marshall Charles Capps

Nicholas Ihle Morley

Eric C Browy

Robert Blake Taylor

Kevin Messer

Jason A Schaefer

Zhiheng Jia

Lei Zhang

John Monos

Kazunori Tanaka

Grace Vesom

Ohad Zohar

Robert Zito

The systems and methods described can include approaches to calibrate head-mounted displays for improved viewing experiences. Some methods include receiving data of a first target image associated with an undeformed state of a first eyepiece of a head-mounted display device; receiving data of a first captured image associated with deformed state of the first eyepiece of the head-mounted display device; determining a first transformation that maps the first captured image to the image; and applying the first transformation to a subsequent image for viewing on the first eyepiece of the head-mounted display device.

Compensation for deformation in head mounted display systems

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.

Method and system for color calibration of an imaging device

Disclosed are techniques for improving the color uniformity of a display of a display device. A plurality of images of the display are captured using an image capture device. The plurality of images are captured in a color space, with each image corresponding to one of a plurality of color channels. A global white balance is performed to the plurality of images to obtain a plurality of normalized images. A local white balance is performed to the plurality of normalized images to obtain a plurality of correction matrices. Performing the local white balance includes defining a set of weighting factors based on a figure of merit and computing a plurality of weighted images based on the plurality of normalized images and the set of weighting factors. The plurality of correction matrices are computed based on the plurality of weighted images.

Color uniformity correction of display device

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Plantation, FL, United States of America

Nukul Sanjay Shah