Image acquisition control method and device based on FPGA

A technology of image acquisition and control method, which is applied in the direction of image communication, color TV parts, TV system parts, etc. It can solve the problems of unfavorable system upgrade and maintenance, difficult software development, high system cost, etc., and save configuration time , hardware and software control is simple, the effect of improving system efficiency

Inactive Publication Date: 2020-04-03
WUHAN JINGLI ELECTRONICS TECH +1
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Problems solved by technology

When the number of cameras is further increased, network cards need to be added, the system cost is high, and the host computer software needs to control two network cards to capture images at the same time, the control is more complicated
In addition, due to the differen

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  • Image acquisition control method and device based on FPGA
  • Image acquisition control method and device based on FPGA
  • Image acquisition control method and device based on FPGA

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[0030] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] An image acquisition system provided by an embodiment of the present invention can be applied to AOI detection, such as figure 2 Shown, including the host computer, FPGA-based image acquisition control device and camera.

[0032] The host computer can be a PC client, which is used to provide an interface to input configuration commands, send configuration commands to the image acquisition control d...

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Abstract

The invention discloses an image acquisition control method and device based on an FPGA. The method comprises the following steps: receiving a configuration command, wherein the configuration commandcomprises a camera type parameter and a camera configuration parameter; identifying camera types of a plurality of cameras accessed to the system, acquiring cameras matched with the camera type parameters contained in the configuration command according to the identified camera types of the plurality of cameras, and establishing connection with the cameras; reading an XML file of the camera, and searching for a register address of a to-be-configured command of the camera according to the camera configuration parameters; and converting the camera configuration parameters and the register address into a control command packet, configuring the camera according to the control command packet, triggering the camera to perform image acquisition, and receiving an acquired image. When a plurality of cameras are used at the same time, hardware and software control is simpler and more convenient.

Description

technical field [0001] The invention belongs to the technical field of defect detection, and more specifically relates to an FPGA-based image acquisition control method and device. Background technique [0002] In panel automatic optical inspection (Automated Optical Inspection, AOI), the types of defects mainly include dirty foreign matter, white spots, scratches, scratches, and dander. Different types of defects have different imaging characteristics, so it is necessary to use a specific image acquisition scheme to effectively collect images of all these defects, and send the collected images to image analysis software for corresponding detection. [0003] The existing image acquisition system structure is as follows: figure 1 As shown, four Gige Vision interface cameras are driven by a 4-port network card. As the size of the panel increases and the resolution increases, the number of cameras required in the image acquisition system increases sharply, and the resolution ...

Claims

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Application Information

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IPC IPC(8): H04N5/76H04N5/77
CPCH04N5/76H04N5/77
Inventor 刘俊
Owner WUHAN JINGLI ELECTRONICS TECH
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