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Moving Object Detection and Compression in IR Sequences

  • Namrata Vaswani
  • Amit K Agrawal
  • Qinfen Zheng
  • Rama Chellappa
Chapter
Part of the Advances in Pattern Recognition book series (ACVPR)

Summary

We consider the problem of remote surveillance using infrared (IR) sensors. The aim is to use IR image sequences to detect moving objects (humans or vehicles), and to transmit a few “best-view images” of every new object that is detected. Since the available bandwidth is usually low, if the object chip is big, it needs to be compressed before being transmitted. Due to low computational power of computing devices attached to the sensor, the algorithms should be computationally simple. We present two approaches for object detection — one which specifically solves the more difficult long-range object detection problem, and the other for objects at short range. For objects at short range, we also present techniques for selecting a single best-view object chip and computationally simple techniques for compressing it to very low bit rates due to the channel bandwidth constraint. A fast image chip compression scheme implemented in the wavelet domain by combining a non-iterative zerotree coding method with 2D-DPCM for both low-and high-frequency subbands is presented. Comparisons with some existing schemes are also included. The object detection and compression algorithms have been implemented in C/C++ and their performance has been evaluated using the Hitachi’s SH4 platform with software simulation.

Keywords

False Alarm Object Detection Query Image Compression Scheme Scalar Quantization 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag London Limited 2005

Authors and Affiliations

  • Namrata Vaswani
    • 1
  • Amit K Agrawal
  • Qinfen Zheng
  • Rama Chellappa
  1. 1.Center for Automation ResearchUniversity of MarylandCollege Park

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