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Calibration method and device

A calibration method and calibration device technology, applied in image analysis, instruments, complex mathematical operations, etc., can solve problems such as spatial light vector differences in projection display devices, three-dimensional virtual scene display errors, etc., to achieve precise control and avoid display errors Effect

Active Publication Date: 2021-10-15
SHENZHEN SKYWORTH NEW WORLD TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to errors in processing and assembly, the spatial light vector of the actual beam emitted by the projection display device will be different from the theoretical one, which will cause display errors in the 3D virtual scene. In order to obtain accurate light field control, it is necessary to test and calibrate the projection display device.

Method used

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  • Calibration method and device

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0059] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0060] It should be noted that like nume...

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Abstract

The invention relates to the technical field of three-dimensional display and measurement, in particular to a calibration method and device. The calibration method is applied to a calibration device for calibrating a projection display device. The calibration device includes a camera module and a calibration module, and a light sensor is arranged in the camera module. The projection display device includes a light source array module, a micro vibrating mirror array and a light reflection plate. The calibration method and device provided by the present invention can control the deflection of the micro-vibration mirror unit using the obtained deflection angle, that is, the outgoing beam of the micro-vibration mirror unit can be injected into the designated position of the optical sensor, so that in actual use, the micro-vibration mirror can be The outgoing light beam of the unit enters the spatial position that needs to be projected, avoiding display errors in the formed three-dimensional virtual scene, thereby realizing precise control of the projection display device.

Description

technical field [0001] The invention relates to the technical field of three-dimensional display and measurement, in particular to a calibration method and device. Background technique [0002] The projection display device generally includes a light source array module, a micro-vibration mirror array, and a light reflection plate. The micro-vibration mirror array includes a plurality of micro-vibration mirror units, and the light reflection plate includes a plurality of micro-reflection units. The micro-reflection units on the light reflection plate are in one-to-one correspondence, and the light emitted by the light source array module is coupled into the micro-vibration mirror array through the light reflection plate, and the micro-vibration mirror array is controlled to project micro-vibration mirrors to multiple virtual object points in space. beams so that multiple beamlets projected onto each virtual object point form a launch beam. When the user receives the beam co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/80G06F17/16
CPCG06F17/16G06T7/80
Inventor 黄琴华李文权
Owner SHENZHEN SKYWORTH NEW WORLD TECH CO LTD
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