Proxy-based handheld device access to live NASA satellite weather images

Min Wu, Jianfei Cai, Chang Wen Chen

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

1 Citation (Scopus)


We present a new proxy-based system to allow public use handheld devices to access instantly to the Low Resolution Picture Taking (LRPT) satellite weather image data and display regional weather image. First the location-based transcoding is done from non frame based satellite image to frame based CIF/QCIF image for handheld device. GPS information from expansion module is used in the location of the region of interest. A robust fixed-length joint source and channel coding scheme is then implemented to achieve robust wireless transmission. Experimental results show that the proposed system is suitable to the time varying, low bandwidth wireless channel and power constraint on wireless handheld devices.

Original languageEnglish
Title of host publicationProceedings Volume 5022, Image and Video Communications and Processing 2003
Number of pages8
Volume5022 II
Publication statusPublished - 2003
Externally publishedYes
EventImage and Video Communications and Processing 2003 - Santa Clara, United States of America
Duration: 21 Jan 200324 Jan 2003

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceImage and Video Communications and Processing 2003
Country/TerritoryUnited States of America
CitySanta Clara


  • Fixed-length joint source and channel coding
  • Location-based transcoding
  • Proxy-based system
  • Push-broom scan

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