INTENSITY CORRECTION FOR PROJECTION SYSTEMS

Number: 20170070711
Published: 2017-03-09
Filed: 2015-09-03
Assignee: Disney Enterprises, Inc.
Inventors: Grundhofer; Anselm et al.
CPC: H04N9/3185; H04N9/3182; H04N9/317
Verdict: Medium Hardware
Source: Google Patents · FreePatentsOnline

The keeper's note

Intensity-correction hardware/technique for projection systems (illusion/projection effect).

Abstract

The present disclosure is generally related to amethod for intensity correction for multiple projector systems. In one method, the intensity blending maps are created. The method includes generating a plurality of pixel maps for a plurality of projectors based on at least one of an orientation of the plurality of projectors and a projection surface and adjusting an intensity of at least one pixel of at least one of the plurality of projectors based, at least in part, on the plurality of pixelmaps.

Background

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1Ais a diagram of a projector system projecting onto a projection surface.

FIG. 1B isa diagram of the projector system of FIG. 1A projecting onto a 3D projection surface.

FIG. 2 is a flowchart illustrating a method of generating a pixel intensity blending map for overlapping projection regions of the projection surface.

FIG. 3A is a front elevation view of a first example of a structured light pattern projected onto the projection surface.

FIG. 3B is a front elevation view of a second example of a structured light pattern projected onto the projection surface.

FIG. 4A is a front elevation viewof the projection surface illustrating projection regions with an overlapping region.

FIG. 4B is a front elevation view of the individual projection regions of FIG. 4A.

FIG. 4C is a front elevation view of the projection surface illustrating the projection regions of FIG. 4A.

FIG. 5 is a flowchart illustrating a method of generating a black level intensity blending map.

FIG. 6 is a block diagram illustrating various operations of the methods of FIGS. 2 and 5 for creating compensation images in a multiple projector system.

FIG. 7 is a functional block diagram of exemplary components of the projectors of FIG. 1.

FIG. 8 is a functional block diagram of exemplary components of the computer of FIG. 1.SPECIFICATIONOverview

The present disclosure provides methods and systems f

Claims

1. A method of blending pixel intensity comprising: generating, by a processor, a plurality of pixel maps for a plurality of projectors based on at least one of an orientation of the plurality of projectors and a projection surface; and adjusting, by the processor, an intensity of at least one pixel of at least one of the plurality of projectors based, at least in part, on the plurality of pixel maps. 11. A method of generating a substantially seamless image with a plurality of overlapping projection images, comprising: projecting, with a first projector, a first structured light pattern on a projection surface; receiving, by a processor, a first image corresponding to the first structured light pattern; projecting, with a second projector, a second structured light pattern on the projection surface, wherein the second structured light pattern at least partially overlaps the first structured light pattern on the projection surface; receiving, by the processor, a second image corresponding to the second structured light pattern; generating, by theprocessor, a set of pixel correspondences between the first projector and second projector, based on the first image and the second image; and modifying a brightness of one or more pixels of at least one of the first and second projector based, at least in part, on theset of pixel correspondences. 18. A system for generating pixel intensity blending maps comprising a plurality of projectors for projecting at least partially overlapping projection regions on a projection surface; a processor; and a computer readable storage device having program instructions stored thereon for execution by the processor, the program instructions comprising: program instructions to project, by the plurality of projectors, structured light patterns on the projection surface; program instructions to receive data corresponding to images of the structured light patterns; program instructions to generate a plurality of pixel maps for each of the plurality of the projectors, the pixel maps including overlapping projection region information; and program instructions to adjust an intensity of one or more pixels based on the pixel maps to generate a composite image having a perceptibly smooth intensity.