Integration of Digital Photos into Mobiile GIS (EPAN 2010)

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  • ESRI MUG Conference 2007 11/28/07 Jim Owecke - jim_owecke@evsgps.com Earth Vector Systems - 800-887-8445
  • Integration of Digital Photos into Mobiile GIS (EPAN 2010)

    1. 1. Adding Digital Photographs to Your GIS Jim Owecke Earth Vector Systems www.evsgps.com 434-817-5000
    2. 2. Why add digital photos to GIS? <ul><li>Rich in detail </li></ul><ul><li>Expert review </li></ul><ul><li>Evidence </li></ul><ul><li>Historical Records </li></ul><ul><li>Minimal extra cost </li></ul>
    3. 3. Methods of adding photos <ul><li>1. Time matching </li></ul><ul><li>2. Embedding GPS into the photo </li></ul><ul><li>3. Mobile GIS Linking </li></ul>
    4. 4. Methods of adding photos <ul><li>1. Time matching </li></ul>
    5. 5. Time Matching – Cons <ul><li>May get mis-matched position </li></ul><ul><li>One-to-one </li></ul><ul><ul><li>One photo per feature </li></ul></ul>
    6. 6. Time Matching – Pros <ul><li>Simple to implement in field procedures </li></ul><ul><li>Can use inexpensive recreation-grade GPS if submeter accuracy not required </li></ul>+
    7. 7. Methods of adding photos <ul><li>2. Embedding GPS into the photo </li></ul>
    8. 8. Embedding GPS – Methods <ul><li>1. Send GPS to camera via Bluetooth </li></ul>
    9. 9. Embedding GPS – Methods <ul><li>2. Use GPS-integrated camera </li></ul>
    10. 10. Embedding GPS - Cons <ul><li>No post-processing of GPS possible </li></ul><ul><ul><li>Must have real-time correction for accurate position </li></ul></ul><ul><ul><li>Position will have 5-15 meters of error if uncorrected. </li></ul></ul><ul><li>One-to-one </li></ul><ul><ul><li>One photo per feature </li></ul></ul>
    11. 11. Embedding GPS - Pros <ul><li>Matching error eliminated </li></ul><ul><li>If real-time corrected - office procedure of differential corrections is not needed </li></ul>
    12. 12. Methods of adding photos <ul><li>3. Mobile GIS Linking - TrimPix </li></ul>
    13. 13. Mobile GIS Linking - Cons <ul><li>Slightly more complex setup </li></ul>
    14. 14. Mobile GIS Linking - Pros <ul><li>Matching error eliminated </li></ul><ul><li>GPS data can be differentially corrected back in the office to improve accuracy to submeter or better </li></ul><ul><li>Many-to-one </li></ul><ul><ul><li>Many photos can be taken for a single feature </li></ul></ul>
    15. 15. Mobile GIS Linking - Demo <ul><li>Trimble TerraSync </li></ul><ul><li>ESRI ArcPad </li></ul>
    16. 16. Ricoh 500SE Digital Camera <ul><li>Can perform all three types of digital photo capture for GIS </li></ul>
    17. 17. Thank You Jim Owecke Earth Vector Systems www.evsgps.com

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