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Method, device and computer-readable storage medium for correcting image distortion of projector

An image distortion and projector technology, applied in the field of projection, can solve the problems of long correction time, low correction efficiency, and the projection screen cannot be completely parallel to the light curtain, so as to shorten the correction time and improve the correction efficiency.

Active Publication Date: 2021-07-13
GOERTEK OPTICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the technological characteristics of the laser beam scanning projector and the inevitable tooling errors during the test, the projection screen cannot be completely parallel to the light curtain, which will cause distortion of the projection graphics
[0004] In the prior art, the distorted image is generally corrected by manual correction, which leads to long correction time and low correction efficiency

Method used

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  • Method, device and computer-readable storage medium for correcting image distortion of projector
  • Method, device and computer-readable storage medium for correcting image distortion of projector
  • Method, device and computer-readable storage medium for correcting image distortion of projector

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Embodiment Construction

[0051] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0052] The main solution of the embodiment of the present invention is:

[0053] Obtain the projected graphics of the projector;

[0054] determining the position of each pixel row according to the projection pattern, and obtaining the horizontal row length and the lateral distortion length of each pixel row in the projection pattern;

[0055] calculating the corrected pixel amount according to the horizontal distortion length and the horizontal row length, and correcting the pixel display position of the projector according to the corrected pixel amount.

[0056] A method, device, and computer-readable storage medium for correcting image distortion of a projector proposed by an embodiment of the present invention obtain the projection image of the projector, then determine the position of each pixel row according to...

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Abstract

The invention discloses a method for correcting image distortion of a projector, which comprises the following steps: obtaining a projection pattern of the projector; determining the position of each pixel row according to the projection pattern, and obtaining each pixel in the projection pattern The horizontal line length and the horizontal distortion length of the row; calculate the corrected pixel amount according to the horizontal distortion length and the horizontal line length, and correct the pixel display position of the projector according to the corrected pixel amount. The invention also discloses a projector image distortion correction device and a computer-readable storage medium. The invention solves the technical problems of long correction time and low correction efficiency for the inherent distortion existing in the projection graphics output by the laser beam scanning projector.

Description

technical field [0001] The present invention relates to the field of projection technology, in particular to a correction method, device and computer readable medium for image distortion of a projector. Background technique [0002] The laser beam scanning projector has the advantages of simple structure, small size, small optical path loss, low power consumption, wide color range, high contrast, high resolution, and no need for focusing. [0003] The laser beam scanning projector uses its main component MEMS (Micro-Electro-Mechanical System, Micro-Electro-Mechanical System) to control the mirror to swing around the horizontal and vertical axes to realize the scanning of the laser beam. In the MEMS driving signal, the horizontal direction is driven by a sinusoidal signal consistent with the horizontal resonance frequency of the MEMS, and the vertical direction is driven by a 60 Hz sawtooth wave. Due to the technological characteristics of the laser beam scanning projector a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T3/00
CPCG06T3/18G06T5/80
Inventor 高文刚
Owner GOERTEK OPTICAL TECH CO LTD