Organisation internationale de normalisation

No.	Title	TBP
Available
9991	Description of Exploration Experiments in 3D Video Coding	N	08/07/25
9992	Results of 3D Experts Viewing	N	08/07/25

5Explorations – New Challenges in Video Coding

A brainstorming session on topics of future video coding standardization was held on Tuesday afternoon (presentation of contributions as listed below), with a follow-up on Thursday morning. The main points of discussion are summarized in N9993. Possible application areas for higher-compression video are mainly seen in

• 
  High resolution HD and beyond (4Kx2K, potentially 8Kx4K) for Regular broadcast and IPTV, Packaged media, Surveillance,P2P communication
  
• 
  Resolution from VGA up to beyond-HD for Mobile Broadcast and downloads
  

In addition, preliminary investigations were reportted about the performance of AVC and some modifications to it (Macroblock and transform block sizes, adaptive transforms, adaptive interpolation filters) showed possible improvements mainly for the cases of high rates and high resolutions.

First thoughts about requirements were mentioned as follows:

• 
  Time line : Beyond 2012
  
• 
  (open) Should the next-generation video standard still be generic or application specific?
  
• 
  Color sampling: 4:2:0 and 4:4:4 (certainly no interlaced needed any more); Progressive 12, … , 60 fps, high frame rates beyond 60 could also happen; Display resolutions VGA … 4Kx2K, potentially 8Kx4K
  
• 
  Compression: Two times over AVC HP desirable for the target application(s); at no point of the entire range should it be worse than existing standard(s).
  
• 
  Complexity increase as compared to AVC shoudl matches what will be possible for implementation by the expected time of usage
  
• 
  (open) Support for Stereo? Scalability? Lossless/near lossless?
  

As the next step, to face the challenges that emerging applications impose on the requirements of video coding standardization, it is planned to organize a full-day workshop in Korea prior to or during the meeting. The key intention of the workshop is to acquire solid information about the context in which video coding will be operating in the future, which will enable MPEG to draw conclusions for the needs and chances in video coding standardization during the next years and to start drafting three key documents: Technology context, applications and requirements for a new video coding standard. For this purpose it is planned to invite speakers on key topics and in addition select a variety of proposed contributions. The following topics will be considered:

1. 
   Applications: Which video signal resolutions are expected, which data rates will be manageable, which networks/storage media will be dominant starting from the middle of the next decade for
   
   1. 
      Unicast and broadcast video/movie distribution,
      
   2. 
      Wireless and mobile,
      
   3. 
      Packaged media.
      
2. 
   Next-Generation Networks (around the year 2015)
   
   1. 
      Which data rates and quality of service characteristics are expected for distribution over IP, WAN, IP-TV, wireless, mobile; unicast, multicast, broadcast, peer 2 peer, access and core networks?
      
   2. 
      Existence of approaches for transmission, modulation, channel coding etc. that could break existing barriers for terrestrial, satellite and cable broadcast, mobile applications; are there limits in terms of efficient usage of bandwidth and cost?
      
3. 
   Video equipment: Availability of cameras, displays, projectors etc. (both for professional and consumer sectors) around the year 2015
   
   1. 
      Cameras: Resolution, color space, quality of lenses, noise characteristics for HD and beyond in particular, cost.
      
   2. 
      Displays/projectors: Resolution, color space, size, resolution of typical input signals, cost.
      
   3. 
      Human factors: What size/resolution is useful considering the properties of human visual system? How likely is it that people will put very large displays (beyond HD) into their houses?
      
4. 
   Compression technology
   
   1. 
      What are known limitations or missing functionality of current compression technology, considering new applications?
      
   2. 
      New compression methods that could overcome such limitations.
      
   3. 
      Methods to evaluate performance: Visual quality, complexity.
      

Procedure:

• 
  Both invited and proposed contributions
  
• 
  Both MPEG and non-MPEG experts
  
• 
  Call for Contributions: 08/08/01
  
• 
  Responses: 08/09/05
  
• 
  Selection, final Program: 08/09/10
  
• 
  Workshop: 08/10/11 or t.b.d. (full day) in Busan or t.b.d.
  

Documents reviewed (see N9993 for detailed comments)

m15577	Requirements for next-generation video coding standard	Shun-ichi Sekiguchi Yoshihisa Yamada Yoshiaki Kato Kohtaro Asai Tokumichi Murakami
m15704	Consideration on an approach for developing a new video codec	Tomoyuki Yamamoto Tomoko Aono Norio Itoh
m15682	Industry Trends around Video Coding	Jung Suk Suh Kyong Sok Seo
m15579	Analysis for Ad Hoc Group on New Challenges in Video Coding Standardization	Kyohyuk Lee Elena Alshina Jeonghoon Park Woojin Han Junghye Min
m15580	Technical considerations for Ad Hoc Group on New Challenges in Video Coding Standardization	Kyohyuk Lee Elena Alshina Jeonghoon Park Woojin Han Junghye Min
m15578	On motion block size and partitions for 4:4:4 coding	Shun-ichi Sekiguchi Shuichi Yamagishi Yusuke Itani Kohtaro Asai Tokumichi Murakami

Output documents: