Design Of A Single Image Recognition Algorithm Based On FPGA

In the wake of developments in science and technology,the image recognition technology has the great promotion to the progress in every field.The study of most of existing image recognition system carrys out the algorithm in the form of the PC software,and not really used for hardware implementation.While,achievements that through hardware are mostly some system schemes such as Digital Signal Porcessor,Embedded ARM Platform and so on,which processor instructors are sequential execution,so it can not reach the high efficiency of hardware execution.Athough the algorithm of image recognition is quite mature,it still lack the hardware implementation.The performance and efficiency of recognition systems may have some differences because of different platforms.Therefore,realizing image recognition algorithm through FPGA hardware have profound meaning to hardware of image recognition algorithm.This paper base on the restricting algorithm of the restricted Boltzmann machine,converting the training and learning of multi hidden layer neutal network into the training and learning of multiple greedy algorithm of restricted Boltzmann machine.The top layer adopts the BP algorithm to fine tune the global parameters of the system,forming the deep brief network structure and applying to handwritten image recognition.And it achieve better results through Matlab programming,simulation and debugging.This paper has specifically implemented a single image recognition algorithm based on FPGA,which mainly adopt Altera Cyclone IV chip and the hardware programming on account of the handwritten image recognition system of deep brief network.Each part of image recognition algorithm designing accordance with hardware features,and with the help of Matlab strong image processing fuction to design and simulate the algorithm.Combing the realizability of FPGA and the structure of FPGA ensure every algorithm steps of image processing.Through the function of Modelsim simulation proof steps,the simulation pass the later hardware implementation algorithm.Take the logical analysis and debugging system online through development softwarewith it own Singaltap.