Answer Sheet Recognition - Simulation on MYIR's ARM+FPGA Board based on OpenCV
2023-06-19
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This evaluation report is provided by developer from ElecFans. The test of the board is to simulate answer sheet recognition through MYIR’s MYD-JX8MMA7 development board based on OpenCV.
MYD-JX8MMA7 Development Board
1. Introduction of MYIR’s MYD-JA8MMA7 Development Board.
The MYD-JX8MMA7 Development Board consists of the high-performance MYC-JX8MMA7 System-On-Module and a versatile base board, which is a powerful and interesting design using ARM+FPGA processing architecture. The board adopts NXP's i.MX 8M Mini processor which features up to 1.8GHz quad ARM Cortex-A53 and 400MHz Cortex-M4 cores and is used as the main processor to achieve data processing, control, communication and display; while the Xilinx XC7A25T Artix-7 FPGA is used as the auxiliary processor which is cost and transceiver optimized and used to achieve high-speed data acquisition and processing. The board is a complete evaluation platform suitable for applications with high requirements for data acquisition, multimedia and display, such as high-end medical devices and industrial data acquisition systems.
2. MYD-JX8MMA7 SDK Release Notes
Please refer to the file “MYD-JX8MMA7 SDK Release Notes” provided by MYIR. We will know the functions the myir-image-full can support. It can support OpenCV so we do not need to install drivers additionally.
3. MYD-JX8MMA7 Software Evaluation Guide
The file has introduced the basic operations of Python in Chapter 10.1 “Development Language”.
4. Path
/usr/share/OpenCV/samples/
/usr/share/opencv4/samples/python/
There are some python programs in the file directory.
5. Image recognition development
1) Reference picture
The picture above is a simulated answer sheet, the same as the actual answer sheet theory, the details may need to change. The normal answer sheet collects more data.
2) Source code
A. Source code screenshot
B. Source code paste
Python 2/3 compatibility
3）Upload code and image
4）Actual operation effect
Please know more about MYIR's MYD-JX8MMA7 Development Board from below link:
https://en.myir.cn/d/iMX8MMiniEcH/145.html
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