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RED Patent Indicates Internal DCT-RAW Recording in Hydrogen

RED Patent Indicates Internal DCT-RAW Recording in Hydrogen

[10:23 sat,16.March 2019   by ]    

The patent of Jim Jannard, Jarred Land and Bhat Manjunath Subray was last updated in January 2019 and deals, among other things, with how RAW compression of moving images on a smartphone can be managed as resource-efficiently as possible.

If we understand it correctly, it is suggested NOT to calculate motion vectors in hardware (like H.264), but to use a discrete cosine transformation. The latter is quite computation-intensive, which is why early video doecs such as MPEG1 and MiniDV already rely on DCT. Even JPGs use the same principle. According to our memory, RAW compression of still images has also existed for a long time. We think we once read that already the first Canon Compressed RAW in the cameras is based on DCT. For this, only components other than RGBRGB im Glossar erklärt or YUVYUV im Glossar erklärt are fed into the DCT. And also the compression of CinemaDNG is, to our knowledge, based on DCT.



RED_phone



One news is that the hydrogen will internally record a compressed RAW dialect. And the other is that it will probably not be R3D, because it is based on wavelet compression, which is almost diametrically opposed to DCT.



deutsche Version dieser Seite: RED Patent deutet auf interne DCT-RAW Aufzeichnung beim Hydrogen Smartphone

  

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deutsche Version dieser Seite: RED Patent deutet auf interne DCT-RAW Aufzeichnung beim Hydrogen Smartphone



last update : 23.August 2019 - 15:02 - slashCAM is a project by channelunit GmbH- mail : slashcam@--antispam:7465--slashcam.de - deutsche Version