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7B_3_Matterhorn on the horizon
 

7B_3_Matterhorn on the horizon

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  • Region = bounded geographic footprintProminence -> e.g., visual salience, have been previously studied for the identification of individual prominent spatial features
  • Region = bounded geographic footprintProminence -> e.g., visual salience, have been previously studied for the identification of individual prominent spatial features
  • Region = bounded geographic footprintProminence -> e.g., visual salience, have been previously studied for the identification of individual prominent spatial features
  • Region = bounded geographic footprintProminence -> e.g., visual salience, have been previously studied for the identification of individual prominent spatial features
  • Region = bounded geographic footprintProminence -> e.g., visual salience, have been previously studied for the identification of individual prominent spatial features
  • Region = bounded geographic footprintProminence -> e.g., visual salience, have been previously studied for the identification of individual prominent spatial features
  • Region = bounded geographic footprintProminence -> e.g., visual salience, have been previously studied for the identification of individual prominent spatial features
  • Region = bounded geographic footprintProminence -> e.g., visual salience, have been previously studied for the identification of individual prominent spatial features
  • Region = bounded geographic footprintProminence -> e.g., visual salience, have been previously studied for the identification of individual prominent spatial features

7B_3_Matterhorn on the horizon 7B_3_Matterhorn on the horizon Presentation Transcript

  • Martin Tomko, Ross S. Purves
    Matterhorn on the Horizon
    Identification of Salient Mountains for Image Annotation
    martin.tomko@geo.uzh.ch
    www.geo.uzh.ch/~mtomko
  • TRIPOD
    x,y,z,A
    View of Eiffel Tower in Paris
    View of Eiffel Tower in Paris
    x,y,z,A
    x,y,z,A
    View of Eiffel Tower in Paris
  • Fusszeile
  • Overview
    Climb every mountain...
    Start from the most salient!
    EXIF Metadata and Camera DB
    Footprint Services: Viewport and Viewshed
    Data Processing/Mapping/Services & Configurations
    Tools
    Ongoing: Salience Computation
  • Fusszeile
  • Overview
    EXIF Metadata and Camera DB
    Footprint Services: Viewport and Viewshed
    Data Processing/Mapping/Services & Configurations
    Tools
    Ongoing: Salience Computation
    But what’s it called?
  • Image Annotation
    (Edwardes, ‘08;
    Chippendale, ‘08)
    DEM viewshed analysis
    (Fisher ’96)
    Mountain Prominence (Helman,’05)
  • Method
  • Method
    Not necessarily the summit!
    Apparent salience [o]
    Apparent salience < Mountain Prominence [m]
    Matterhorn: 4478m / Mt prom: 1031m / saddle height: 3447 (Wandfluejoch)
  • Method
  • Matterhorn;LK100
    Monte Cervino;LK100
    Pic Tyndall;LK25
    Testa del Leone;LK25
    Method
  • Method
    Mountain-top regions in Switzerland
    Mountain height > 800
    Rel. drop > 250m
  • Matterhorn;LK100
    Monte Cervino;LK100
    Pic Tyndall;LK25
    Testa del Leone;LK25
    Method
  • Example
  • Example
    Caption: Torberg photographed in the morning in the Innerthal (Region), Switzerland
    Mountain: Torberg , position: IMAGE_RIGHT
  • Example
  • Future work
    Larger evaluation
    Qualitative description of the horizon
    Consider distance, valleyness
    Explore landform shape salience, texture, name ridges,…
    Explore semantic salience (crowdsourced data)
  • Overview
    Climb every mountain,Ford every stream, Follow every rainbow,Till you find your dream.
    EXIF Metadata and Camera DB
    Footprint Services: Viewport and Viewshed
    Data Processing/Mapping/Services & Configurations
    Tools
    Ongoing: Salience Computation
  • Overview
    Thank you!
    EXIF Metadata and Camera DB
    Footprint Services: Viewport and Viewshed
    Data Processing/Mapping/Services & Configurations
    Tools
    Ongoing: Salience Computation