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Thesis in RAI research center - Colour Volume Transform based on ICtCp colour representation

azienda Thesis in external company    


keywords VIDEO COMPRESSION

Reference persons ENRICO MAGLI

External reference persons Roberto Iacoviello (RAI CRIT)

Research Groups Image Processing Lab (IPL)

Thesis type RESEARCH / EXPERIMENTAL

Description A new colour representation was introduced in the HEVC specifications (from ITU-R BT.[HDR]): ICtCp (Constant Intensity). It's an alternative to the commonly used NCL YCbCr (non-constant luminance (NCL) ) representation for the encoding of colour signals. It claims to resolve several issues that have been observed in NCL YCbCr:
- Chroma leakage (especially for 4:2:0 applications)
- Reduced banding/Improved codeword representation
- Hue Linearity
- Better performance for larger colour volumes

After revising the current state of the art on this topic, the student will focus on the implementation of a colour volume transform for the presentation of HDR/WCG (High Dynamic Range/WideColourGamut) on a display having a smaller color volume than that of the mastering display used for mastering the source.

NOTE: for further information on ICtCp
ITU-R BT.2100
https://www.dolby.com/us/en/technologies/dolby-vision/ictcp-white-paper.pdf
http://wwwen.zte.com.cn/endata/magazine/ztecommunications/2016/1/articles/201603/P020160311294995790791.pdf
https://infoscience.epfl.ch/record/222897/files/IEEEpaper.pdf

Required skills Good programming skills (Matlab or python)

Notes This thesis will be carried out at the research center of RAI, the main Italian public television broadcaster, in their headquarters in Via Cavalli, Torino (10-15 min walk from Politecnico)


Deadline 02/02/2018      PROPONI LA TUA CANDIDATURA