Future video coding: new tools and algorithms

Future video coding: new tools and algorithms

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In the recent years, there has been a real revolution in the world of film and television, thanks to the advent of new digital formats that has involved the entire chain of production of multimedia products. This revolution has impacted the multimedia industry, consumer electronics and communication networks, opening new opportunities for convergence. Video quality has grown exponentially, aiming to emulate the chromatic richness, dynamics and rendering of details typical of human vision, posing major challenges with respect to bandwidth in transmission channels and media storage, making necessary to have new and more performing standards of compression of the video signal that leaves the quality unchanged. Moreover, video content itself has experienced important changes related to the quality delivered to the users and also in the way they consume it. From one point of view, HD and beyond-HD resolutions have become increasingly popular and from the other point of view video-on-demand, mobile television services, stereo and multiview capture and display are some examples of how the video content is evolving nowadays. All these services demand efficient solutions to store huge amounts of data and to deliver the same video content at different resolutions. Although communication networks have also evolved to provide higher capacities, these new requirements concerning video content require to compress the video signal very efficiently in order to store it and stream it reliably.

Chapter Contents:

  • 10.1 Context and international bodies
  • 10.2 Video coding
  • 10.2.1 Video-coding chain
  • Source acquisition
  • Preprocessing
  • Encoding
  • Transmission
  • Decoding
  • Post-processing
  • Display
  • 10.3 Inside a video
  • 10.4 Representation of color
  • 10.4.1 Fundamentals of radiometry and photometry
  • 10.4.2 Human-visual system
  • 10.4.3 Color space CIE 1931 XYZ
  • 10.5 State of the art of audio–video technologies
  • 10.5.1 High dynamic range
  • 10.5.2 Wide color gamut
  • 10.5.3 Transfer functions: EOTF and OETF
  • 10.5.4 Perceptual quantizer
  • 10.5.5 Hybrid log-gamma
  • 10.5.6 Other HDR formats
  • 10.5.7 High frame rate
  • 10.6 Hybrid video-coding scheme
  • 10.6.1 Picture partitioning
  • 10.6.2 Intra-prediction
  • 10.6.3 Inter-prediction
  • 10.7 Evolution of video services and video-compression technologies and standardization activities in MPEG
  • 10.7.1 Description of the VVC coding tools
  • Frame partitioning
  • Intra-prediction
  • Inter-prediction
  • Transform improvements
  • Loop filter
  • Entropy coding
  • 10.8 The codec battle
  • References

Inspec keywords: standards; data compression; video coding

Other keywords: video quality; video services; future video coding; video signal compression; video content; compression standards

Subjects: Video signal processing; Image and video coding

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