적외선 영상 표적추적 성능 개선을 위한 적응적인 자동문턱치 산출 기법 연구|RISS 상세보기

다국어 초록 (Multilingual Abstract)

It is very critical for image processing of IIR (Imaging Infrared) seekers to achieve improved guidance performance for missile systems to determine appropriate thresholds in various environments. In this paper, we propose automatic threshold determination methods for proper thresholds to extract definite target signals in an EOCM (Electro-Optical Countermeasures) environment with low SNR (Signal-to-Noise Ratios). In particular, thresholds are found to be too low to extract target signals if one uses the Otsu method so that we suggest a Shifted Otsu method to solve this problem. Also we improve extracting target signal by changing Shifted Otsu thresholds according to the TBR (Target to Background Ratio). The suggested method is tested for real IIR images and the results are compared with the Otsu method. The HPDAF (Highest Probabilistic Data Association Filter) which selects the target originated measurements by taking into account of both signal intensity and statistical distance information is applied in this study.

번역하기

참고문헌 (Reference)

1 송택렬, "표적의 부분가림이 존재하는 환경에서 견실한 추적을 위한 영상 표적 탐지, 추적 알고리듬 연구" 제어·로봇·시스템학회 16 (16): 982-990, 2010

2 정윤식, "특징정보를 고려한 HPDAF를 이용한 적외선 영상 표적 탐지 및 추적기법 연구" 한국군사과학기술학회 11 (11): 124-132, 2008

3 Jessica P. Houston, "Quality analysis of in vivo near-infrared fluorescence and conventional gamma images acquired using a dual-labeled tumor-targeting probe" 10 (10): 054010-, 2005

4 배종수, "Image Tracking Algorithm using Template Matching and PSNF-m" 제어·로봇·시스템학회 6 (6): 413-423, 2008

5 T. L. Song, "Highest probability data association for active sonar tracking" 1-8, 2006

6 R. C. Gonzalez, "Digital Image Processing Using MATLAB, 2nd Ed" Prentice Hall 2009

7 N. Otsu, "A threshold selection method from gray level histograms" SMC-9 : 62-66, 1979

8 J. S. Bae, "A study for image target auto-detection and tracking by using dynamic filtering algorithms in a cluttered environment" 2008

9 P.-S. Liao, "A fast algorithm for multilevel thresholding" 17 (17): 713-727, 2001