HEVC/H.265: Everything you need to know

Published in Technology & Computing

In a major new article, Phil Rhodes explores the background to HEVC/H.265, and explains what makes it so good at compressing video. Read this if you want to know how almost all video - including 4K - will be delivered in the near future

VP9 codec rides to the aid of 4K

Published in Studio & Broadcast

Google seems to be saying "Forget H.265 - our VP9 codec is here, now, and is better"

The art of Motion Tracking

Published in Post & VFX

For most of the history of film, if you wanted to insert something into the picture that didn't exist,  the camera had to be stationary. Motion tracking allows artificial objects to be inserted convincingly into real footage. Phil Rhodes explains

8-bit or 10-bit? The truth may surprise you

Published in Technology & Computing

One from the archives: It’s a great pity that in order to enjoy the benefits of digital imaging, we must use pixels that may only be one of a comparatively small selection of colours, as opposed to the effectively infinite subtlety of nature. Phil Rhodes spreads light and understanding about quantization and noise.

RedShark Replay: The one where Phil Rhodes doesn't mince his words in wondering why not!

You will hear a lot about codecs when it comes to 4k in the next few months, but the most important one of them all finally reaches an important milestone in January when HEVC hits the Final Draft International Standard stage. Ratification and commercial products supporting it will not be far behind

Could VP9 be the codec for 4K Blu-Ray?

Published in Studio & Broadcast

 Even though many pundits think 4K will be delivered by streaming, there are plenty of households still with slower broadband for whom this will not be an option. Now, it seems, Google's free VP9 codec might be a candidate for a new "Blu-Ray" format

World's fastest video codec can handle 16K

Published in Technology & Computing

Post specialist Cinegy has unveiled what it thinks is the world’s fastest codec, DANIEL2, capable of decoding up to 1100 frames per second of 8K video.

Will Perseus be the go-to codec for 4K?

Published in Studio & Broadcast

Could the new Perseus codec usurp H.265/HEVC for future 4K distribution (and possibly even acquisition)? 

Researchers at the University of Bath claim to have invented a codec based not on pixels but on vectors. Vector graphics have been around for a long time but until now they have not been considered to be suitable for general purpose image work - and certainly not for video - because while they have distinct advantages, they are difficult to use where images are complex

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