NDLI: Synchronised Encoding of GPS NMEA Messages onto High Definition Video Streams

Content Provider	IEEE Xplore Digital Library
Author	Lewis, P. Winstanley, A. McCarthy, T.
Copyright Year	2007
Description	Author affiliation: Nat. Univ. of Ireland Maynooth Co., Maynooth (Lewis, P.; Winstanley, A.; McCarthy, T.)
Abstract	Consumer awareness and retail penetration of high definition (HD) technologies has increased dramatically over the last few years. This has led not only to increased interest and expectation of these technologies but also affordability of equipment. Global Positioning Systems (GPS) have also seen a very dramatic increase in consumer exposure and affordability with in car navigation systems, as an example, becoming more common place. The integration of HD Video (HDV) and GPS offers new research and development directions in many of the application areas that spatial video has played a role in to date. These include many mapping and navigation application areas such vehicular route corridor surveys, aerial and marine studies and location based services (LBS). In the past, work on integrating these systems has typically involved technologies that have lower quality spatial accuracy and much lower image resolutions, which has restricted spatial video to enhanced visualisation roles in geographical information systems (GIS). A number of research project have developed such system integration, while propriety commercial applications have also successfully deployed survey and analysis products in this area. Many application areas, especially in GIS, will benefit from using integrated HDV and GPS National Marine Electronics Association (NMEA) spatial data. The high resolution progressive scan nature of HDV will facilitate many research avenues that apply image processing techniques to GIS analysis and operations. A pilot project has begun by collecting two and half hours of route corridor surveys using a vehicle mounted system where GPS NMEA data and HDV progressive scan 1280 times 720 p format data sets have been simultaneously recorded. In integrating these data sets a number of difficulties have been encountered. These include the specific data integration methods that are possible and time synchronization problems. Existing GPS and Video systems integration include frequency shift modulated audio encoded systems, however our approach is to investigate both MPEG-2 and MPEG-4 formats for Spatial data integration and the possibility of HDV in a MPEG-7 format which supports video and audio object metadata fields. Synchronising 1 Hz GPS spatial data signals with 24 to 60 Hz HDV frames is a problem affecting the positional accuracy of the location information with the HDV image location. Following on from this, the latency involved in signal propagation through an integrated capturing system will present some more technical problems.
Starting Page	213
Ending Page	213
File Size	68997
Page Count	1
File Format	PDF
ISBN	9780769528878
DOI	10.1109/IMVIP.2007.32
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-05
Publisher Place	Ireland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Marine technology Geographic Information Systems Image resolution Image coding Navigation Streaming media Encoding High definition video Research and development Global Positioning System
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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