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Separated Children Seeking Platform

Separated Children Seeking Platform. Based on Location Information from Street Snap. Group 3. Introduction. Photos, Location, Time etc. Apache Server. Android App. A list of photos & Location. Background.

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Separated Children Seeking Platform

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  1. Separated Children Seeking Platform Based on Location Information from Street Snap Group 3

  2. Introduction Photos, Location, Time etc. Apache Server Android App A list of photos & Location

  3. Background Now the public are commonly indifferent and unconcerned about the separate children seeking issue • unwilling to provide personal information • avoiding the touch with police • confused about what to do We want to change this situation, and merge this public service with game-like mobile application toencourage the participation of populace

  4. Android App • Activities • take photo & add comments • display similar photos • give feedback • display locations on map

  5. Client-Server Model JSON insert an entry PHP $_POST 33.646576, -117.842793, 2014-05-20 14:01:03 MySQL 33.856147, -116.146351, 2014-05-20 10:46:42 Android App PHP echo json_encode() database query JSON

  6. Server and Database • Store the images in a folder • Entry format in the database • `id`, for every photo, INT, PRIMARY KEY • `desc`, verbal description, VARCHAR • `location`, location info, POINT SPATIAL INDEX, RTREE • `time`, TIMESTAMP • MYISAM engine

  7. Image Query Approach • Time and location matching • Define a reasonable time interval • Define a reasonable spatial interval • Notice that the location information is in latitude and longitude. Translation to absolute distance should be define. • 1 degree latitude deviation = 69 miles (approx.) • 1 degree longitude deviation = 69 miles (approx.) • Face recognition • Face recognition algorithms • Challenge

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