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The Design of Real-time Image Processing System Based on SOPC

Author: NieMengQing
Tutor: YuYu
School: West China University
Course: Measuring Technology and Instruments
Keywords: FPGA SOPC Nios II SDRAM Moving object detection
CLC: TP391.41
Type: Master's thesis
Year: 2010
Downloads: 173
Quote: 3
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Abstract


With the rapid development of computer, microelectronics and informations technology, real-time image processing applications more widely, people’requirements on the image processing system processing speed are also getting higher and higher. In view of the excellent characteristics of embedded processor, select an embedded real-time image processing system to become an inevitable trend. The rapid development of microelectronic technology for high-speed image processing system provides a hardware-based, embedded real-time image processing system implementations are mainly based on application specific integrated circuit, digital signal processor DSP and field-programmable gate array FPGA. However, choose a different system composed of different codec and processor, the ease of the system and achieve the functions are also different. Currently, FPGA-based image processing system to become the research hotspot, FPGA have high-performance, high integration and low power cost characteristics,one FPGA-embedded soft-core processor image processing systems to meet the right speed, integration, reliability requirements.Based on the current Real-time image processing research situation and development trend, in this paper, real-time image processing system design Program based on SOPC technology have been studied, analysised and designed the hardware system architecture and working principle. The system uses ALTERA’s CycloneII series FPGA chips EP2C70F896C6 as the core, built real-time image processing system based on SOPC, using the SOPC Builder that comes within the Nios II soft-core processor as a general controller, using CCD camera and ADV7180 video decoder chip as the real-time image data acquisition system, the video images collected by acquisition module through the modulus conversion, decoding and Space Format Conversion,then stored in SRDAM Frame Buffer, and then read out video image from SDRAM through the Avalon port.After format conversion and space converted,then sent to the VGA controller module and moving object detection module. Video format conversion module converts video image data format,then RGB space data will be sented to the VGA Controller, finally,displayed through the displayer; when the Video images being sented to the moving object detecting and tracking module, the module will accordance with the pre-set object segment and tracking algorithm, detect the moving objects from the background image and tracking it at the same time.Through the debugging and validing about the system,finally, the system achieved real-time image data collection,storage,display and moving object detection capabilities betterly, it has short development cycle, speed,and versatility characteristics.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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