Foreground/Background separation methods

[kris-lab]

Keying:

• https://de.wikipedia.org/wiki/Keying
• https://en.wikipedia.org/wiki/Compositing

General research:

• https://en.wikipedia.org/wiki/Chroma_key
• http://www.tzi.de/tzikeyer/keying_report.pdf
• https://en.wikipedia.org/wiki/Image_segmentation
• http://www.umiacs.umd.edu/users/knkim/paper/Kim-RTI2005-FinalPublished.pdf

Primatte model:

• http://www.fxalley.com/client/Red%20Giant%20All%20Suite%20for%20Adobe%20CS6%20Win/KSuite_Win_Full/Documentation/Primatte%20Keyer%205/Source_Files/howworks.html
• http://help.thefoundry.co.uk/nuke/8.0/content/user_guide/keying_with_primatte/primatte_algorithm.html
• https://en.wikipedia.org/wiki/Primatte_chromakey_technology
• http://www.primatte.com/content.cfm?n=whitepapers-clean
• ftp://195.222.181.42/pub/%D0%9E%D0%B1%D0%BC%D0%B5%D0%BD/RED%20GIANT%20ALL%20SUITES%202011/KSuite_Mac_Full/Documentation/Primatte%20Keyer%205/Source_Files/howworks.html

Software:

• http://www.primatte.com/content.cfm?n=product-library

Hardware:

• http://www.ultimatte.com/
• https://software.intel.com/en-us/realsense/devkit
• http://www.reflecmedia.com/education/products/iztac/index.htm

Depth enabled image:

• https://www.youtube.com/watch?v=CMPfRR4gHTs&feature=youtu.be
• http://www.pelicanimaging.com/technology/mobile.html
• maybe simply calculate depth map with stereo cameras
  • opencv?
  • visionworks http://www.techbriefs.com/component/content/article/ntb/features/feature-articles/14925

Books:

• https://books.google.co.uk/books?id=-fIbBQAAQBAJ&pg=PA29&lpg=PA29&dq=chroma+keying+matte+hardware&source=bl&ots=7iHpgw0Iig&sig=dCuz50Zy3UrLboVRSTS2MMz2Ygw&hl=en&sa=X#v=onepage&q=chroma%20keying%20matte%20hardware&f=false

Other

• Blending https://limnu.com/webgl-blending-youre-probably-wrong/

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• http://www.jolau.ch/

[kris-lab]

Primatte

• http://opticalenquiry.com/nuke/index.php?title=Primatte
• http://opticalenquiry.com/nuke/index.php?title=Keying_Tips
• https://en.wikipedia.org/wiki/Video_denoising
• http://opticalenquiry.com/nuke/index.php?title=Premultiplication

Sample codes:

• https://github.com/lightofanima/Primatte

[kris-lab]

https://www.fxguide.com/featured/art_of_keying/ Ultimatte, Primatte and Keylight all share the same problem in Flame - the lack of being able to use them inside Action. It is useful to think of the Ultimatte process as a mixing process, not a keying process. This makes it possible to matte with shadows, hair, water etc. An Ultimatte uses the intensity and purity of the blue signal as a function to determine how much blending to perform between the foreground and background images. Another useful feature of the Ultimatte is the previously mentioned blue spill removal. Other circuits deal with glare, uneven or dirty blue backings, etc. Modern units from the Model V on up can independently adjust the color of the background and foreground plates. An Ultimatte used to have many knobs on its front panel, but the new digital units use a display screen and multifunction controls. The Current Model is the "9" and there are also models for High Definition work.