Video Camera Latency Analysis and Measurement
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F63839172%3A_____%2F20%3A10133282" target="_blank" >RIV/63839172:_____/20:10133282 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/TCSVT.2020.2978057" target="_blank" >https://doi.org/10.1109/TCSVT.2020.2978057</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TCSVT.2020.2978057" target="_blank" >10.1109/TCSVT.2020.2978057</a>
Alternative languages
Result language
angličtina
Original language name
Video Camera Latency Analysis and Measurement
Original language description
All modern video cameras exhibit some latency between the scene being captured and the output video signal. This camera latency is significant to the overall latency of a video network transmission chain. Some real-time applications based on video sharing require very low latency and selecting the right camera is then crucial. We observed how video cameras operate regarding their latency. We proposed three methods to measure camera latency: timecode view, waveform shift, and screen photodetector methods. All methods can achieve a subframe resolution and precision of approximately~1~ms although with varying levels of automation, convenience and suitability for particular cameras. We discuss arrangements that affect measurement precision. We applied the proposed methods to a sample camera, and we show measurements results for several other cameras. The measurement results showed that the fastest cameras provide latencies lower than 5~ms, which should be fast enough even for demanding real-time applications. However, most cameras still exhibit latencies at the range of 1---3 video frames.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20206 - Computer hardware and architecture
Result continuities
Project
<a href="/en/project/EF16_013%2F0001797" target="_blank" >EF16_013/0001797: CESNET E-Infrastructure - Modernisation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Transactions on Circuits and Systems for Video Technology
ISSN
1051-8215
e-ISSN
—
Volume of the periodical
31
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
140-147
UT code for WoS article
000607384300012
EID of the result in the Scopus database
2-s2.0-85099375282