A multi-cis splicing smart camera and method for realizing large-format online detection
A smart camera and electrical connection technology, applied to color TV parts, TV system parts, TVs, etc., can solve the problems of poor real-time performance, high cost, and large size of images, and achieve the goal of improving real-time performance and reducing costs Effect
Active Publication Date: 2016-08-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology
This processing method needs to consume a lot of data transmission time, and at the same time, the PC's image processing cannot be truly parallel and the real-time performance is poor.
For the online inspection system that requires an error or stop operation once the object under test is found to be changed or abnormal during high-speed inspection, the traditional large-format inspection system cannot meet the real-time requirements
In addition, the system cost of the traditional PC+ large format CIS line scan camera is relatively high, and it is extremely inconvenient to install on the industrial site due to its large size.
Method used
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Embodiment 1
[0012] Embodiment 1: see figure 1 , figure 2 , a multi-CIS splicing smart camera for realizing large-format online detection, including an image acquisition module, an image processing module, and an external interface module. It is about 108mm-311mm, so to scan a large-format image of more than 1m, it is necessary to use multiple root CIS for image stitching. The CIS acquisition module is composed of a CIS sensor, AD, and light source, and is electrically connected to each other. The image The processing module includes FPGA, dual-core DSP and Flash module. The FPGA and Flash module are bidirectionally connected with the dual-core DSP respectively. The FPGA is responsible for the image splicing and image preprocessing of N groups of CIS. The FPGA is also connected with two DDR3 memories DDR3-1, DDR3-2, the dual-core DSP processor is responsible for the communication of complex image processing algorithms, Ethernet and other interfaces and the scheduling and coordination of ...
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The invention discloses a multi-CIS splicing intelligent camera and a method for realizing large-format online detection, including an image acquisition module, an image processing module and an external interface module. The image acquisition module is composed of N groups of CIS acquisition modules, N≥2, The CIS acquisition module is composed of a CIS sensor, an AD, and a light source. The image processing module includes an FPGA, a dual-core DSP and a Flash module, and two DDR3 memories are connected to the FPGA. Compared with the existing large-format image acquisition and processing technology, the present invention directly integrates the image acquisition and processing into a camera, and utilizes the FPGA parallelism feature to realize processing while acquiring images, which greatly improves the real-time performance of the entire system. It meets the real-time requirements of online large-format image detection, and the structure is relatively simple and small in size, which is convenient for installation and use in complex industrial sites.
Description
technical field [0001] The invention relates to an image acquisition and processing technology, in particular to a multi-CIS splicing intelligent camera and method for realizing large-format online detection. Background technique [0002] In industrial production, large-format image processing and inspection requirements of more than 1 meter are often encountered, such as weaving inspection, PCB appearance inspection, ceramic tile inspection and other image inspections. The traditional solution is to use a large-format CIS line scan camera to collect images, and then process the large-format images through the back-end PC in a pure software manner. This solution of PC + large-format CIS line scan camera requires that the image data be continuously transmitted to the PC through camerlink, USB and other interfaces for processing while collecting images. This processing method needs to consume a large amount of data transmission time, and at the same time, the PC cannot achiev...
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IPC IPC(8): H04N5/232H04N5/76
Inventor 刘霖郭涛陈伟张峰陈镇龙罗颖宋昀岑刘娟秀杨先明
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA