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Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
1
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
Is Compression Dead, or Are We Wrong Again?
Touradj [email protected]
Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
2
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
Is uncompressed dead?
Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
3
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
Compression is not dead because ...
o ... of abundance in computing & information
Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
4
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
But some compression approaches can die if ...
o ... not well managed!
Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
5
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
Compression game in the last 3 decades
Increase complexity (because of abundance
in resources)
Get better compression
Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
6
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
Advanced Image Coding (AIC)
• Advanced Image Coding– Part 1: Guidelines for codec evaluation– Part 2: Evaluation procedure for assessing visually lossless coding– Part 2 AMD1: Evaluation of high dynamic range content– Part 2 AMD2: Evaluation of image sequences
• Call for information issued in February 2015 to receive information on next generation still image compression with superior compression efficiency, as well as other useful features needed in future multimedia applications
• PCS 2015 Feature Event - Evaluation of current and future image compression technologies
• ICIP 2016 Image Compression Grand Challenge - Evaluation of innovative ideas for image compression technologies when compared to existing standards.
Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
7
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
Result of this compression game …
Increasingly complex systems...But we seem to be happy aboutit and continue on this trend exclusively!
Henrique Edouardo Vittorio Carlos (265 pounds)
Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
8
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
JPEG XS Light weight / Low Latency Image Coding
o Low complexityo Transparent qualityo Low latencyo Compression
XS
Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
9
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
IP policies in compression standards
oSome standards encourage license bearing compression technologies as opposed to freely usable
Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
10
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
Result of this compression game …
Extensions based on an already complex baseline make codecs even more complex!
Henrique Edouardo Vittorio Carlos (265 pounds)
Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
11
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
JPEG approach to standardization
o Baseline compression standard should be license fee free and royalty fee free
o Extensions could include IP with RANDo This avoids push to overload baseline compressiono Leaves the choice to the market!
Multimedia Signal Processing GroupEcole Polytechnique Fédérale de Lausanne
12
ICIP 201625-28 September 2016 Phoenix, Arizona, USA
New imaging modalities need compression
Panorama
360/VR
Spatial photo
Point cloudphoto
Light fieldphoto
Holograhy
… 2015 … … 2020 …
Depth photo
o JPEG PLENO