Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2014, Vol. 25 ›› Issue (5): 050403 doi: 10.13538/j.1001-8042/nst.25.050403

• NUCLEAR ELECTRONICS AND INSTRUMENTATION • Previous Articles     Next Articles

Applying image processing method to treat digital signals

WANG Peng,1 ZHANG Ruan-Yu,2  YUAN Xue-Dong,2 XU Zu-Run, 2 AN Zhu 1   

  1. 1Institute of Nuclear Science and Technology of Sichuan University, Key Laboratory of Radiation Physics and Technology, Ministry of Education, Chengdu 610064, China
    2The College of Physics Science and Technology of Sichuan University, Chengdu 610064, China
  • Contact: ZHANG Ruan-Yu E-mail:softyv@vip.sina.com
  • Supported by:

    Supported by National Natural Science Foundation of China (No. 11075111)

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WANG Peng, ZHANG Ruan-Yu, YUAN Xue-Dong, XU Zu-Run, AN Zhu . Applying image processing method to treat digital signals.Nuclear Science and Techniques, 2014, 25(5): 050403     doi: 10.13538/j.1001-8042/nst.25.050403

Abstract:

In this paper, we present a novel method for digital nuclear signal processing based on image processing and recognition, which can improve signal-to-noise ratio of digital nuclear signal effectively without changing the signal shape. The digital nuclear signal with a “time-amplitude” series is converted into a grayscale image with adjustable pixel size. Template of the converted image is extracted by means of modern image processing methods, such as spatial digital low-pass filtering, image binary and the skeleton extracting of images. The needed parameters are extracted from the template image. The method of template extracting presented in this paper can be used flexibly to extract template of nuclear signals, whether the whole or even part of that, and got multi templates corresponding to the whole or partial characters of the signals. The results of image processing, along with -ray energy spectrum of 241Am acquired by this method, show that the new method provides a way to develop future digital nuclear instruments of high efficiency and flexibility, high density and multi parameters.

Key words: Image of digital nuclear signal, Skeleton extracting, Waveform information extracting