FPGA上的人脸检测算法研究.ppt

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1、FPGA上的人脸检测算法研究上的人脸检测算法研究赵峰上海交通大学微电子学院Shanghai Jiao Tong University大 纲研究背景研究背景实现方案进展与成果Shanghai Jiao Tong University项目背景生物特征识别技术蓬勃发展指纹、语音、人脸、虹膜、步态等在监控、安防等领域潜力巨大国内研究起步较早，具备一定的产业基础和市场规模人脸识别优点明显界面友好无需配合Shanghai Jiao Tong University研究背景（续）该研究来自企业需求基于PC平台的人脸识别系统非常完善基于DSP平台的人脸识别产品进入市场推广降低成本，减小体积，进入更广阔的应用领域

2、人脸识别的SOC方案或ASIC方案资金投入巨大成功率更加无法保障研究基础不扎实FPGA上的人脸识别研究应运而生Shanghai Jiao Tong University大 纲研究背景研究内容研究内容进展与成果Shanghai Jiao Tong University研究内容人脸检测算法的运算特点分析软、硬件划分算法的实现架构的设计硬件加速模块的设计纯粹硬件方法实现的可行性最终得到SOC方案中的硬件加速模块（IP Core）或者纯粹的ASIC设计Shanghai Jiao Tong University我们的开发步骤SOC方案FPGA上的纯粹软件方案的实现性能分析人脸检测算法的算法级优化（new

3、 architecture）架构设计（软、硬件划分）硬件加速设计ASIC方案Video Port(in&out)Face detectionShanghai Jiao Tong University开发平台Target Board:Xilinx XUP Virtex-II Pro Development System Rev CProcessor:PPC 405 or MicroBlazeProcessor clock frequency:300.000000 MHzBus clock frequency:100.000000 MHzBRAM Memory:16K+16K+16KDDR_SDR

4、AM_32Mx64 Single Rank=256 MBShanghai Jiao Tong University大 纲研究背景研究内容进展与成果进展与成果Shanghai Jiao Tong UniversityPerformanceShanghai Jiao Tong UniversityStrategyPPC+硬件加速模块基本运算硬化硬化乘加运算开方运算长整型运算第一层强分类器运算硬化Shanghai Jiao Tong University Original Before Algo-opt After Algo-opt Shanghai Jiao Tong UniversityAppl

5、icationCase1:Integrated in Digital CameraCase2:Integrated in Mobile PhoneCase3:Intelligent toysCase4:Other portable device based on arm9/PPC405/PPC440/xcale etc.Shanghai Jiao Tong UniversityNew arch for ASICNew Architecture(very good)System C level modelingC Modeling and profilingVerilogHDL CodingVi

6、deo port(IP core)Video in (BT656)Video out(VGA)I2C(simplify)Shanghai Jiao Tong UniversityNew Architecture缩小图像，而不是放大Haar特征硬件只要实现对于N x N（N为训练图像的大小）的图像的检测同时减少了硬件资源的消耗。Shanghai Jiao Tong UniversityShanghai Jiao Tong University技术路线总结SOC(ASSP)Powerpc405+coreConnect？Not arm926+ambaIntegrate Video Port to P

7、LB BusASICA hardware version of the new architectureno processorShanghai Jiao Tong UniversityPPC4xx Embedded core and PPC4xx ASSPPPC405/440 ASSP=PPC405/440+SoCBus(CCB)+PeripheralsPPC 405EPPPC405Core4KBOCM10/100E-MAC10/100E-MACI/O InterfacesSDRAM ControllerPPC440CoreDDR SDRAM CntlI/O Interfaces10/100

8、E-MAC10/100E-MACUSB 1.1 H and DMAC+PHYUSB 2.0 DeviceMACSyncFLASHSPIFPU440EPShanghai Jiao Tong UniversityIBM PowerPC Processor CoresHigh-performance hard cores for IBM,Chartered and SamsungFully synthesizable cores for flexibility in fab choice and/or design pointPowerPC 4051.5 DMIPS/MHz250 nm180 nm1

9、30 nm90 nmFully Synthesizable65 nm90 nmFully Synthesizable65 nm45 nmPowerPC 4402.0 DMIPS/MHz180 nm130 nm90 nmFully Synthesizable65 nm45 nmPowerPC Next GenShanghai Jiao Tong UniversityFeasibilityppc405 core is more powerful than arm926ppc405 core is cheaper than arm926IBM provides design serviceFound

10、ry:IBM/TSMC/Chartered/SamsungShanghai Jiao Tong UniversityDEMODEMO（video 5fps）6 students 5 monthsTHANKSTHE ENDYnVjSgPdLaI7F3C0y)v&s#pXmUiRfNcK9H5E2B+x(u$rZoWkThQeMbJ7G4D1z-w*t!qYmVjSgOdLaI6F3B0y)v%s#pXlUiQfNcK8H5E2A+x(u$rZnWkThPeMbJ7G4C1z-w&t!qYmVjRgOdL9I6F3B0y(v%s#oXlUiQfNbK8H5D2A+x*u$qZnWkShPeMaJ7

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