NDLI: Cost-Effective Solution to Synchronized Audio-Visual Capture Using Multiple Sensors

Content Provider	IEEE Xplore Digital Library
Author	Lichtenauer, J. Valstar, M. Jie Shen Pantic, M.
Copyright Year	2009
Abstract	Applications such as surveillance and human motion capture require high-bandwidth recording from multiple cameras. Furthermore, the recent increase in research on sensor fusion has raised the demand on synchronization accuracy between video, audio and other sensor modalities. Previously, capturing synchronized, high resolution video from multiple cameras required complex, inflexible and expensive solutions. Our experiments show that a single PC, built from contemporary low-cost computer hardware, could currently handle up to 470MB/s of input data. This allows capturing from 18 cameras of 780x580pixels at 60fps each, or 36 cameras at 30fps. Furthermore, we achieve accurate synchronization between audio, video and additional sensors, by recording audio together with sensor trigger- or timestamp signals, using a multi-channel audio input. In this way, each sensor modality can be captured with separate software and hardware, allowing maximal flexibility with minimal cost.
Starting Page	324
Ending Page	329
File Size	246291
Page Count	6
File Format	PDF
ISBN	9781424447558
DOI	10.1109/AVSS.2009.92
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-02
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Costs Surveillance Humans Sensor fusion Cameras Audio recording Educational institutions Hardware Synchronization Video recording Multisensor systems
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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