Volume 41 Issue 1
Jan.  2015
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JIANG Hongxu, LI Huiyong, LIU Tingshan, et al. Method for airborne video capture and preprocessing based on FPGA[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(1): 14-22. doi: 10.13700/j.bh.1001-5965.2014.0467(in Chinese)
Citation: JIANG Hongxu, LI Huiyong, LIU Tingshan, et al. Method for airborne video capture and preprocessing based on FPGA[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(1): 14-22. doi: 10.13700/j.bh.1001-5965.2014.0467(in Chinese)

Method for airborne video capture and preprocessing based on FPGA

doi: 10.13700/j.bh.1001-5965.2014.0467
  • Received Date: 28 Apr 2014
  • Publish Date: 20 Jan 2015
  • Video capture, color space conversion and video data transmission were researched in order to improve video capture and pre-processing performance of airborne multi-mode video coding system. Taking into account the requirements of real-time multi-mode video capture, a robust video capture strategy based on field-programmable gate array (FPGA) was designed. It monitors the correctness of video capture on-time to avoid accumulation of errors by adopting self-checking mechanism. To solve the problem of wastes of computing resources and increasement of power consumption in floating-point multiplication, a truncated look-up table multiplier based on the separation of high and low bits was designed to save memory and computation bandwidth. It achieves an efficient color space conversion combining pipeline technique, with power consumption decreasing 27% at most without loss of computing precision and processing performance. Considering the frequent transmission of mass data between FPGA and digital signal processor (DSP), a data interaction mechanism taking FPGA as the control core was proposed, adopting the transmission mode of serial rapid I/O (SRIO). The burden of DSP was alleviated due to concentrating on video coding, and thus the application performance was improved.

     

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  • [1]
    Blair J B,Rabine D,Wakeet S.et al.High-altitude laser altimetry from the global hawk UAV for regional mapping of surface topography[C]//AGU Fall Meeting Abstracts.San Francisco:AGU,2012:885.
    [2]
    Adams S M,Levitan M L,Friedland C J.High resolution imagery collection utilizing unmanned aerial vehicles (UAVs) for post-disaster studies[J].Bridges,2014(10):1143879634-1143879667.
    [3]
    Saffar S,Abdullah A.Vibration amplitude and induced temperature limitation of high power air-borne ultrasonic transducers[J].Ultrasonics,2014:54(1):168-176.
    [4]
    Wang D Y,Tao X H,Hu R.The design of the interface for camera link and DM642[C]//Control and Decision Conference.New York:IEEE,2010:2914-2916.
    [5]
    贾建禄,王建立,郭爽,等.基于Camera Link 的高速图像采集处理器[J].液晶与显示,2010,25(6):914-918.Jia J L,Wang J L Guo S,et al.High speed image grabber and processor based on Camera Link[J].Chinese Journal of Liquid Crystals and Displays,2010,25(6):914-918(in Chinese).
    [6]
    Singh S K,Kumar S.Novel adaptive color space transform and application to image compression[J].Signal Processing:Image Communication,2011,26(10):662-672.
    [7]
    Li S A,Chen C Y,Chen C H.Design of a shift-and-add based hardware accelerator for color space conversion[J].Journal of Real-Time Image Processing,2013,9:1-14.
    [8]
    Liu Z G,Du S Y,Yang Y,et al.A fast algorithm for color space conversion and rounding error analysis based on fixed-point digital signal processors[J].Computers & Electrical Engineering, 2014,40(4):1405-1414.
    [9]
    Meher B K,Meher P K.A new look-up table approach for high-speed finite field multiplication[C]//2011 International Symposium on Electronic System Design.New York:IEEE,2011:51-55.
    [10]
    Meher P K.LUT optimization for memory-based computation[J].IEEE Transactions on Circuits and Systems II:Express Briefs,2010,57(4):285-289.
    [11]
    Meher P K.New approach to look-up-table design and memory-based realization of FIR digital filte[J].IEEE Transactions on Circuits and Systems I:Regular Papers,2010,57(3):592-603.
    [12]
    Meher P K.New look-up-table optimizations for memory-based multiplication[C]//Proceedings of the 12th International Symposium on Integrated Circuits.New York:IEEE,2009:663-666.
    [13]
    Kuang S R,Wu K Y,Yu K K.Energy-efficient multiple-precision floating-point multiplier for embedded applications[J].Journal of Signal Processing Systems,2013,72(1):43-55.
    [14]
    Eswari S.Design of low error and power fixed width multiplier by using compensation function[J].International Journal of Engineering Research and Technology,2013,7(2):755-760.
    [15]
    Balamurugan S,Srirangaswamy B,Marimuthu R,et al.FPGA design and implementation of truncated multipliers using bypassing technique[C]//Proceedings of the International Conference on Advances in Computing,Communications and Informatics.Berlin:ACM,2012:1111-1117.
    [16]
    Xue J,Cao X.Color space conversion based on FPGA[C]//IEEE International Conference on Computer Science and Automation Engineering.New York:IEEE,2012:422-425.
    [17]
    Yang Y,Peng Y H,Liu Z G.A fast algorithm for YCbCr to RGB conversion[J].IEEE Transactions on Consumer Electronics,2007,53(4):1490-1493

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