EEL6788_MoViPresentation_Pittman_02092011

EEL6788_MoViPresentation_Pittman_02092011 - MoVi: Mobile...

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Click to edit Master subtitle style 8/25/11 James Pittman February 9, 2011 MoVi: Mobile Phone based Video Highlights via Collaborative Sensing Xuan Bao Department of ECE Duke University Romit Roy Choudhury Department of ECE Duke University
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8/25/11 Outline Introduction Assumptions System Overview Challenges Design elements Evaluation 22
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8/25/11 Introduction Basic Concepts Replace sensor motes with mobile phones in social settings Sensors in these settings will record a large amount of continuous data How do you distill all of the data from a group of sensors in a social setting? 33
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8/25/11 Introduction Basic Concepts Develop trigger concepts to know when to sense with phones Derive values for sensed data to determine which sensor is recording the ‘best’ data Combine system based sensor results to create Highlights of social occasions 44
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8/25/11 Assumptions 55 To make this system work assumptions about the situation are required: 1. People are wearing a camera 2. People are wearing a sensor (mobile phone) These can be the same device
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8/25/11 System Overview 66 The MoVi system has 4 parts 1. Group Management Analyze data to compute social groups among phones 2. Trigger Detection Scan the data for potentially interesting events
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8/25/11 System Overview 77 The MoVi system has 4 parts 3. View Selector Pick a sensor or group with the best “view” of the event 4. Event Segmentation Extract the appropriate section of video that fully captures the event
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8/25/11 System Overview 88 Client / Server Architecture for MoVi
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8/25/11 Challenges Group Management 1. Correctly partitioning the mobile devices into groups 2. Identifying “social zones” to based on social context 3. Mapping the phones into the zones and into groups and keeping them 99
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This note was uploaded on 08/25/2011 for the course EEL 6788 taught by Professor Boloni,l during the Spring '08 term at University of Central Florida.

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EEL6788_MoViPresentation_Pittman_02092011 - MoVi: Mobile...

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