Two-layers constant-quality video coding for ATM environments

1990 ◽  
Author(s):  
Fernando M. B. Pereira ◽  
Lorenzo Masera
Keyword(s):  
Video Coding ◽  
Quality Video ◽  
Constant Quality

Constant quality video coding using video content analysis

2005 ◽  
Vol 20 (4) ◽  
pp. 343-369 ◽  
Author(s):  
Luk Overmeire ◽  
Lode Nachtergaele ◽  
Fabio Verdicchio ◽  
Joeri Barbarien ◽  
Peter Schelkens
Keyword(s):  
Content Analysis ◽  
Video Coding ◽  
Video Content ◽  
Video Content Analysis ◽  
Quality Video ◽  
Constant Quality

Broadcast Quality Video Contribution in Mobility

2011 ◽  
pp. 1199-1212
Author(s):  
José Ramón Cerquides Bueno ◽  
Antonio Foncubierta Rodriguez
Keyword(s):  
Video Coding ◽  
Low Cost ◽  
Mobile Telephony ◽  
Continuous Growth ◽  
3G Networks ◽  
Business Opportunities ◽  
Quality Video ◽  
Development Processes ◽  
Mobile Phone Networks ◽  
High Flexibility

The continuous growth of the available throughput, specially in the uplink of mobile phone networks is opening the doors to new services and business opportunities without references in the past. In more concrete, new standards HSDPA/HSUPA, introduced to complement and enhance 3G networks, together with the advances in audio and specially video coding, like those adopted by the standard H.264 AVC have boosted the appearance of a new service: exploiting the mobile telephony networks for contributing broadcast quality videos. This new service is offering just now a low cost, high flexibility alternative that, in a brief period of time, will substitute the current Electronic News Gathering (ENG) Units, giving rise to what is being to be called Wireless Journalism (WENG1 or WiNG2). This chapter discusses both the technologies involved and the business opportunities offered by this sector. Once reviewed the state of the art, different solutions will be compared, some of them recently appeared as commercial solutions, like QuickLink 3.5G Live Encoder3 or AirNow!4 and others still in research and development processes.

Adaptable system based on Scalable Video Coding for high-quality video service

2013 ◽  
Vol 39 (3) ◽  
pp. 775-789 ◽  
Author(s):  
Laura Pozueco ◽  
Xabiel García Pañeda ◽  
Roberto García ◽  
David Melendi ◽  
Sergio Cabrero
Keyword(s):  
Video Coding ◽  
Scalable Video Coding ◽  
Scalable Video ◽  
High Quality ◽  
Video Service ◽  
Quality Video ◽  
High Quality Video

scholarly journals Video coding and constant quality evaluation using 4k aomenc-AV1 and rav1e-AV1 formats

2021 ◽  
Vol 18 (2) ◽  
pp. 139-154
Author(s):  
Milan Milivojevic ◽  
Dragi Dujkovic ◽  
Ana Gavrovska
Keyword(s):  
Video Transmission ◽  
Frame Rate ◽  
Constraint Factor ◽  
Comparison Results ◽  
Quality Video ◽  
Constant Quality ◽  
Reference Tools ◽  
Quality Constraint ◽  
High Quality Video ◽  
Efficient Video

It is much expected from the relatively novel, open, royalty-free AV1 (Alliance for Open Media (AOMedia) Video 1) standard. At this moment, there are many new variants of AV1 format. It is designed for efficient video internet delivery and high-quality video transmission. AV1 is recognized as Google?s VP9 format successor. One of the reference tools used so far for testing AV1 is libaom- AV1. Nevertheless, due to its time-consuming performance, there are now different available standalone solutions for experimental analysis. Here, one such solution AOMedia?s standalone aomenc (aomenc-AV1) is tested in order to analyze quality assessment based on constant quality constraint factor. Three different metrics are calculated for various 4k video content of the same frame rate. Moreover, rav1e implementation was tested for the same visual data, where rav1e-AV1 also represents an AV1 video encoder, which is considered reliable and suitable in most cases, where libaom is not applicable. In this paper, the comparison results between aomenc-AV1 and rav1e-AV1 are shown.

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