FPGA-based face recognition system

Abstract

The invention discloses an FPGA-based face recognition system and relates to the field of face recognition. The system comprises an external device FPGA plate and a processing data FPGA plate. Doublebars of insertion pins are mutually connected on the external device FPGA plate. The external device FPGA plate is connected with a face acquirer through a serial connection external port SPT. Face acquisition images are stored in an SRAM through an SRAM port. The SRAM port is used for storing a processed face image structure into a connected SDRAM. An LCD PIO is connected with an LCD display. A key PIO is connected with a key. By use of a NiosII processor, a user customizes a soft core processor according to own standards. An image face preprocessing module is used for processing images transmitted by the external device FPGA plate. According to the invention, through use of two serially connected FPGA chips, one FPGA is connected with an external device and the other FPGA is used for processing data; the software description language Verilog HDL is used for carrying out designing and circuit achieving on an image preprocessing algorithm; all functions are systematically integrated together, so processing speed is improved; and the system is advantaged by simple structure, small size and low power consumption.

Description

technical field [0001] The invention belongs to the field of face recognition, in particular to an FPGA-based face recognition system. Background technique [0002] Due to the advantages of uniqueness, stability, and ease of collection of human body signs, face recognition technology has become the most widely used technology in the field of biometric technology. However, the traditional PC-based automatic face recognition system usually has complex algorithms, which cannot meet people's requirements for real-time and portability. There are still problems such as misrecognition and rejection in the current facial recognition system. [0003] Using FPGA to realize automatic face recognition system. Since the number of single-chip logic gates of the existing FPGA chip has reached millions, it can fully realize the facial recognition system, but the single-chip price of FPGA is constantly declining, so it is completely necessary to use FPGA to realize the face recognition sys...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a face recognition system based on FPGA, which is used in series by two FPGA chips, an FPGA external device, and another FPGA to process data, and the image preprocessing algorithm is designed and circuit realized by using the hardware description language Verilog HDL , the respective functions are systematically integrated together, the processing speed is improved, and the shortcomings of traditional PC-based systems such as large volume, slow speed, and high resource consumption are solved.

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