Dissertation > Excellent graduate degree dissertation topics show

Research and Implementation of Low-Light Video Real-Time Processing System Based on DavinciTM

Author: FuYu
Tutor: YinHui
School: Beijing Jiaotong University
Course: Computer Applications
Keywords: DavinciTM Low-light video Real-time processing Video enhancement Video denoising
CLC: TP391.41
Type: Master's thesis
Year: 2008
Downloads: 186
Quote: 5
Read: Download Dissertation

Abstract


With the development of multimedia technology, low-light night vision technology is developed significantly and applied widely in the military and civil aspect. It has great theoretical significance and practicality to combine embedded technology with low-light video real-time processing technology in the military and civil aspect, and it is also an important topic which the domestic and foreign researchers pay attention to. Now processing chip must be provided with the formidable operational capability and nimble conformity ability in the embedded video application domain. But DSP, FPGA, ASIC as well as the general processor (for example ARM) based on the single nuclear processing chip, have difficulty to satisfy the requirement in the aspects of operational capability and control function. The TMS320DM6446 processor of Texas Instruments (TI) Corporation’s integrating the ARM and the DSP, which is applied in this paper, has characteristics of higher operational performance, lower power loss and so on. The processor can satisfy simultaneously the requests of operational capability and the control function.The software and hardware framework of TMS320DM6446 platform is thoroughly researched and analyzed. In view of the low-light video’s characteristic, the thesis proposes a low-light image enhancement arithmetic which is suitable for the embedded platform, and also designs and realizes low-light video real-time processing system based on TMS320DM6446. The prime task of the thesis includes:1. To study low-light image processing technology based on the embedded processing platform, analyze the strengths and weaknesses of processing chip based on the single nuclear, and discuss the characteristic and superiority of TMS320DM6446 this paper uses;2. To study and analyze the software and hardware framework of TI Corporation’s Davinci platform from four aspects: the characteristic of ARM-DSP integration, memory allocation, switched central resource and detailed steps of software development;3. To propose the total technical program of the system about low-light image enhancement from two aspects: low-light image processing technology and embedded processing platform;4. To design and realize low-light video real-time capturing and displaying function modules combined with the characteristic of the Davinci platform;5. To raise an arithmetic calculating the new fitting component using the Y, U and V channel based on the analysis of video sampling format and the R, G and B three channels’characteristic of low-light image, and make use of this fitting component to enhance and denoise the low-light image.The test result indicates that the system has completed low-light video capturing、processing and denoising function, and the demonstration on the TMS320DM6446 platform has reached the anticipated result and satisfied the real-time requirement basically.

Related Dissertations

  1. FPGA/DSP Image Co-processor Technology and Ethernet Data Transmission,TP391.41
  2. LabVIEW-based Open CNC System,TG659
  3. Software Implementation of Rafar Imaging Algorithm,TN957.52
  4. The Research of Real-time Measuring Method about Subpixel Level Edge Warp of the Ceramic Tile,TU522.1
  5. SAR real- processor data transfer interface design and implementation,TN958
  6. TMS320C6202-Based Real-Time Image Processing System,TP274.4
  7. FPGA and DSP -based SAR imaging signal processing board design,TN957.51
  8. FPGA-based real-time signal processing of SAR,TN957.51
  9. Study of Ship Imaging and Real-time Processing Software,TN957.52
  10. Real-time iris image quality assessment algorithm research and implementation,TP391.41
  11. Real-time speech enhancement and its DSP system implementation,TN912.3
  12. Based on a high-speed rotary body image information real-time measurement method,TP391.41
  13. The Detection and Analysis System of Portable Pulse Signal Bases on Bluetooth Transmission,TN911.23
  14. No Center Military Digital Communication System Design and Implementation,TN914.3
  15. Technology Research of X-ray Image’s Real-time Processing and Coding Based on DSP,TP391.41
  16. ISAR imaging , real-time signal processing technology research,TN957.52
  17. A New Approach for Dark Video Denoising and Enhancement Based on NLM and Tone Mapping,TP391.41
  18. Design of Fpga-based Video Capturing System,TP274.2
  19. Research and Application of Speech Enhancement Arithmetic,TN912.35
  20. Study on Video Enhancement of Post-Processing,TP391.41

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
© 2012 www.DissertationTopic.Net  Mobile