Sharing Lifelog Experience (Midterm)

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Sharing Lifelog Experience (Midterm)

  1. 1. Sharing Lifelog Experiences ODCSSS 2008 Paula Meehan DCU Prof. Noel O Connor, Daragh Byrne
  2. 2. Contents <ul><li>Introduction </li></ul><ul><li>Background Research </li></ul><ul><li>Event Segmentation </li></ul><ul><li>Matching Events (1) </li></ul><ul><li>Matching Events (2) </li></ul><ul><li>Progress </li></ul><ul><li>Model </li></ul>
  3. 3. Introduction <ul><li>What is a Lifelog? </li></ul><ul><li>Connecting different user’s Lifelog Collections. </li></ul>
  4. 4. Background Research <ul><li>CDVP (Centre for Digital Video Processing) </li></ul><ul><ul><li>Event Segmentation </li></ul></ul><ul><ul><li>Content and Context in Multimedia Semantics </li></ul></ul><ul><ul><li>MPEG feature extraction </li></ul></ul>
  5. 5. Event Segmentation A day’s SenseCam images (3,000 – 4,000) Multiple Events Finishing work in the lab At the bus stop Chatting at Skylon Hotel lobby Moving to a room Tea time On the way back home Event Segmentation A day’s SenseCam images (3,000 – 4,000) Multiple Events Finishing work in the lab At the bus stop Chatting at Skylon Hotel lobby Moving to a room Tea time On the way back home Event Segmentation Share Events
  6. 6. Event-Segmented image sets User 1 User 2 Compare Event-Event similarity between Users Event’s attended by both Users Matching Events (1) ... : Similarity matrix
  7. 7. User 2 User 1 Matching Events (2) Similarity Score : <ul><li>Scalable Colour </li></ul><ul><li>Colour Structure </li></ul><ul><li>Colour Layout </li></ul><ul><li>Colour Moments </li></ul><ul><li>Edge Histogram </li></ul><ul><li>Homogeneous Texture </li></ul>Extract MPEG-7 descriptors for this image <ul><li>Scalable Colour </li></ul><ul><li>Colour Structure </li></ul><ul><li>Colour Layout </li></ul><ul><li>Colour Moments </li></ul><ul><li>Edge Histogram </li></ul><ul><li>Homogeneous Texture </li></ul>Extract MPEG-7 descriptors for this image :
  8. 8. Progress <ul><li>Presently </li></ul><ul><ul><li>Parsing ‘sensor.txt’ and ‘image.xml’ files </li></ul></ul><ul><li>Future Work </li></ul><ul><ul><li>Plot data and compare </li></ul></ul><ul><ul><li>Extract MPEG-7 Descriptor features of images </li></ul></ul><ul><ul><li>Match Events of Users </li></ul></ul><ul><ul><li>Solution for timestamps of events which aren’t synchronised </li></ul></ul>
  9. 9. Model My Events User 1’s Events My Shared Event User 1’s Shared Event Shared Event
  10. 10. Thank you

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