Light Ray Based Calibration System and Method

Number: 20170289534
Published: 2017-10-05
Filed: 2016-04-05
Assignee: Disney Enterprises, Inc.
Inventors: Grundhofer; Anselm, Beeler; Dominik Thabo
CPC: H04N17/002
Verdict: Low Notable software
Source: Google Patents · FreePatentsOnline

The keeper's note

Calibrates an optical device like a camera using a light-emitting device and ray generator that project structured light patterns.

Abstract

The present disclosure relates to a system and method for calibrating an optical device,such as a camera. In one example, the system includes a light-emitting device that generates light patterns and an ray generator that is positioned between the light-emitting device and the optical device. The ray generator separates the light emitted as part of the light patterns into a plurality of directional rays. The optical device then captures the directional rays and the captured data, along with data corresponding to the light pattern and the ray generator, are used to calibrate the optical device.

Background

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of a calibration system.

FIG. 2 is a simplified block diagram of a computer of the calibration systemof FIG. 1.

FIG. 3 is an isometric view of a first example of a calibration assemblyincluding an emitting device and an ray generator.

FIG. 4 is a partially exploded view of the calibration assembly of FIG. 3.

FIG. 5 is an enlarged view of the ray generator of calibration assembly of FIG. 4.

FIG. 6 is a partially exploded view of a second example of a calibration assembly.

FIG. 7 is an enlarged view of a wavelength specific ray generator of the calibration assembly of FIG. 6.

FIG. 8 is an isometricview of the calibration assembly of FIG. 6 aligned with an optical device for calibration.

FIG. 9 is a flow chart illustrating a method for calibrating an optical device using the calibration system of FIG. 1.

FIG. 10 is a side elevation view of the calibration assembly integrated into an attachable module that connects directly to the optical device.SPECIFICATION

The present disclosure is generally related to a system and method for calibrating optical devices, such as cameras. The system simulates point patterns in space to generate hallucinations of light points, and uses the simulated points to calibrate an optical device. In one embodiment, the system includes a light-emitting device, such as an electronic visual display (e.g., liquid crystal display, p

Claims

1. A system forcalibrating an optical device comprising: a light ray generator for generating directional light rays in optical communication with the optical device, wherein the ray generator separates light to generate a plurality of directional light rays; and the directional light rays are captured by the optical device. 13. A method for calibrating an optical device comprising: generating by a light-generating device, a light pattern; separating by a ray generator the light pattern into a plurality of light rays; capturing one or more images by the optical device of the plurality of light rays; and determining by a processing element one or more lens properties of the optical device based on the light ray images captured by the optical device. 19. A calibration assembly for use in calibrating a camera, comprising: an emitting device that generates light wavelengths; and an optical mask in opticalcommunication with the emitting device; wherein the optical mask separates the light wavelengths emitted from the emitting device into one or more directional light rays.