Projection system, image processing apparatus, projection method

A projection system for projecting an image onto a projection body having a curve in one direction by projection units includes processors and memory, which upon execution, causes the projection system to extract a set of grid points indicating distortion of a projected image from captured calibrati...

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Bibliographic Details
Main Authors Uchiyama, Yukinaka, Ishikawa, Masaaki
Format Patent
LanguageEnglish
Published 24.03.2020
Subjects
ACCESSORIES THEREFOR
ADVERTISING
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CINEMATOGRAPHY
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
SEALS
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Summary:A projection system for projecting an image onto a projection body having a curve in one direction by projection units includes processors and memory, which upon execution, causes the projection system to extract a set of grid points indicating distortion of a projected image from captured calibration images; to convert each set of grid points of a target projection unit commonly extracted from captured calibration images having a calibration pattern projected on the projection body in different imaging ranges in association with the one direction onto a common coordinate system; to combine the converted sets of grid points on the common coordinate system in accordance with position; and to calculate a correction coefficient based on the combined sets of grid points.
Bibliography:Application Number: US201816032383