An Image Processing Method Based on FPGA Frame Parallel Connected Domain Screening Feature Objects
An image processing and connected domain technology, applied in the field of image processing, can solve the problems of large resource consumption, slow processing speed, large amount of calculation, etc., and achieve the effect of compensating for low configuration, improving processing speed, and reducing resource consumption.
Active Publication Date: 2022-02-11
HANGZHOU DIANZI UNIV
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Problems solved by technology
Target recognition is a relatively popular technology in the field of image processing. The accuracy of its recognition depends on whether the target can extract the correct target information in a complex and noisy background. Therefore, it is necessary to process the target in a complex environment. , to separate the background from the target, but this process is not easy to do well,
[0003] At present, when using FPGA to screen target objects in a slightly complicated background, there are many defects: first, the accuracy rate of the entire screening process is low; second, the processing speed is slow: taking an image with 1024*768 resolution as an example, processing a The clock of the pixel is about 15ns, and it takes at least 10ms to process the frame image. resource
Its applicability is low for projects that require a large amount of calculation and storage; while the logic resources and memory of the other two FPGAs are significantly higher, so the price is also high, so they are high-cost FPGAs, which are suitable for computing Projects with storage requirements
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[0044] Below with reference to shown in accompanying drawing, the present invention is further described by specific embodiment:
[0045] Such as figure 1 As shown, an image processing method based on FPGA frame parallel connected domain screening feature target, based on the following system, the system includes FPGA chip, image sensor, SDRAM module, image processing module, VGA module; the signal terminal of FPGA chip and the image sensor The signal terminal is bidirectionally connected, the signal output terminal of the FPGA chip is connected to the signal input terminal of the SDRAM module, the signal output terminal of the SDRAM module is connected to the signal input terminal of the image processing module, and the signal output terminal of the image processing module is connected to the signal input terminal of the VGA module connect.
[0046] First, the FPGA chip sends the register data required for image sensor initialization through the IIC communication protocol, ...
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The invention discloses an image processing method for screening feature targets based on FPGA frame parallel connected domains. The present invention introduces a connected domain processing method for the first time (connected domain processing is a processing method for extracting a connected object with characteristic information from the background). In the context of a slightly complex background with many distractors, connected domain processing can separate the characteristic target from the background distractors, thereby filtering out the correct target information and providing a greater accuracy rate for subsequent recognition.
Description
technical field [0001] The invention relates to the field of image processing, in particular to a processing method for screening feature targets based on parallel connected domains of FPGA frames. Background technique [0002] In recent years, the technology of realizing target object recognition through software has been quite mature. However, due to the large amount of data processed by some algorithms in image processing, it will be slower to realize with general software. Today integrated electronic technology is no longer unfamiliar, it is widely used in various fields. As a popular editable logic device, FPGA is also an ideal device for digital image processing. FPGA can not only increase the speed of image processing, but also develop more flexible and real-time performance, which greatly improves the versatility and flexibility of system design. Target recognition is a relatively popular technology in the field of image processing. The accuracy of its recognition ...
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IPC IPC(8): G06T7/13G06T7/155G06T7/187G06T7/90G06T5/00G06K9/00
CPCG06T7/13G06T7/187G06T7/155G06T7/90G06V20/00G06V10/30G06V10/44G06V2201/07G06T5/70
Inventor 汤峻郑雪峰马学条
Owner HANGZHOU DIANZI UNIV