대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

SAR 디스플레이 영상을 위한 무손실 압축

LOSSLESS DATA COMPRESSION ON SAR DISPLAY IMAGES

  • Lee, Tae-hee (Communications and Signal Processing Lab., Division of Electronics & Computer Engineering Pohang University of Science and Technology) ;
  • Song, Woo-jin (Communications and Signal Processing Lab., Division of Electronics & Computer Engineering Pohang University of Science and Technology) ;
  • Do, Dae-won (Communications and Signal Processing Lab., Division of Electronics & Computer Engineering Pohang University of Science and Technology) ;
  • Kwon, Jun-chan (Communications and Signal Processing Lab., Division of Electronics & Computer Engineering Pohang University of Science and Technology) ;
  • Yoon, Byung-woo (Communications and Signal Processing Lab., Division of Electronics & Computer Engineering Pohang University of Science and Technology)
  • 발행 : 2001.09.01
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초록

Synthetic aperture radar (SAR) is a promising active remote sensing technique to obtain large terrain information of the earth in all-weather conditions. SAR is useful in many applications, including terrain mapping and geographic information system (GIS), which use SAR display images. Usually, these applications need the enormous data storage because they deal with wide terrain images with high resolution. So, compression technique is a useful approach to deal with SAR display images with limited storage. Because there is some indispensable data loss through the conversion of a complex SAR image to a display image, some applications, which need high-resolution images, cannot tolerate more data loss during compression. Therefore, lossless compression is appropriate to these applications. In this paper, we propose a novel lossless compression technique for a SAR display image using one-step predictor and block arithmetic coding.

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