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A synchronous control method, device and image acquisition system

An image acquisition system and control device technology, which is applied to the use of projection device image reproducer, image communication, TV system components, etc., can solve the problems of poor image quality captured by the camera, slow image acquisition speed, etc., and achieve quality improvement Poor, speed-enhancing effect

Active Publication Date: 2022-02-01
SICHUAN UNIV
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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a kind of synchronous control method and device, by controlling the hardware synchronization of the camera, effectively realize the synchronization of the projected picture of the projector and the picture captured by the camera, and improve the slow speed of image acquisition and the slowness of the captured image by the camera. poor quality issues

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  • A synchronous control method, device and image acquisition system
  • A synchronous control method, device and image acquisition system
  • A synchronous control method, device and image acquisition system

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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. 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.

[0026] It should be noted that like numerals and let...

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Abstract

The invention provides a synchronous control method, device and image acquisition system, belonging to the technical field of image acquisition. The synchronous control method is applied to an image acquisition system, and the method includes: the control device acquires the image; sends the image to the projector, and sends a capture command to the camera according to preset rules; During projection, the control device generates a vertical synchronous signal, and sends the vertical synchronous signal to the camera, so that the camera that receives the capture instruction captures the projected image of the current projector under the trigger of the vertical synchronous signal; obtains the current projection captured by the camera capture image of the image projected by the instrument. The synchronous control method effectively solves the problem that the flickering of the fluorescent lamp in the environment interferes with the image projected by the projector, resulting in poor quality of the image captured by the camera, and improves the speed of image acquisition.

Description

technical field [0001] The present invention relates to the technical field of image acquisition, in particular to a synchronous control method, device and image acquisition system. Background technique [0002] Optical three-dimensional measurement technology is a technology for measuring the shape of three-dimensional objects. Among them, phase measurement profilometry (PMP) is a method that uses the grating image projected by a commercial projector to deform on the surface of the measured object, and the camera collects the deformed grating image to obtain the three-dimensional information of the object and reconstruct it on this basis. method. [0003] The main principle of the existing three-dimensional measurement technology is: the computer sends projection instructions to the projector, and the projector projects multiple frames of phase-shifted grating images to the measured object. The signal is sent to the camera, which triggers the camera to collect the raster ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232H04N9/31
CPCH04N9/317H04N23/66
Inventor 刘凯程冠鸿王江赵涛
Owner SICHUAN UNIV
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