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People

Papers

Organizations

  • Section 387 (Modeling and Data Management Systems)
  • Section 317 (Planning and Execution Systems)
  • Section 322 (Geophysics and Planetary Geosciences Group)
  • Section 347 (Machine Vision Group)

Sponsors

  • Intelligent Systems
  • Interplanetary Network
  • Mars Technology Program
  • Applied Information Systems Research Program

About OASIS

Rover traverse distances are increasing at a faster rate than downlink capacity is increasing. As this trend continues, the quantity of data that can be returned to Earth per meter traversed is reduced. The capacity of the rover to collect data, however, remains high. This circumstance leads to an opportunity to increase mission science return by carefully selecting the data with the highest science interest for downlink. We have developed an onboard science analysis technology for increasing science return from missions. Our technology evaluates the geologic data gathered by the rover. This analysis is used to prioritize the data for transmission, so that the data with the highest science value is transmitted to Earth. In addition, the onboard analysis results are used to identify science opportunities. A planning and scheduling component of the system enables the rover to take advantage of the identified science opportunity.

 

What is traverse science?

  • Scientifically characterizing the terrain during long rover traverses.



  • Collecting science information while traveling from point A to point B.



  • Developing methods for prioritizing a set of rocks/images according to their scientific importance.
  • Responding to science opportunities identified during the traverse.

 

Benefits

  • Science during rover traverse
    • science information gained for surface areas for which no information would otherwise be available
  • Data prioritization for downlink
    • form of data compression

 

Traverse Science Scenarios

  1. Prioritize images collected during traverse for downlink

  2. Collect inexpensive extra data of potentially interesting objects

  3. Slightly adjust path to get better view of a very interesting object

  4. Approach and take contact measurement of an extremely interesting object 

 

Approach

Onboard traverse science data analysis system that will increase the total science return of MSL and other missions

  • Image Segmentation and feature extraction: rock detection, soil and atmosphere
  • Science analysis: data prioritization, science alert, data summarization
  • Planning and scheduling: responses to data analysis – collect new data, stop and call home, adjust path and contact measurement

  • OASIS MovieDownload 104M (.mov)

    + OASIS Movie 104M (.mov)


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