W3C home > Mailing lists > Public > public-media-capture@w3.org > March 2016

[mediacapture-depth] Support a consistent measurement unit

From: Martin Thomson via GitHub <sysbot+gh@w3.org>
Date: Wed, 23 Mar 2016 04:01:29 +0000
To: public-media-capture@w3.org
Message-ID: <issues.opened-142853887-1458705688-sysbot+gh@w3.org>
martinthomson has just created a new issue for 
https://github.com/w3c/mediacapture-depth:

== Support a consistent measurement unit ==
We support i420 and RGB for video without burdening applications with 
the distinction between the two.  In the browser itself, those two 
might be carried differently, but when they hit a screen or API, they 
are converted to a common form.

It would appear that depth captures aren't consistent in the units 
they use.

I can understand a representation that was expressed relative to the 
focal length or some other physical constraint if the intent is to 
preserve the maximum dynamic range over the 8 or 16 bits available to 
the encoding, but the spec already does that in terms of the near and 
far value.

The near value and far value in particular could be expressed in 
metres.

Please view or discuss this issue at 
https://github.com/w3c/mediacapture-depth/issues/113 using your GitHub
 account
Received on Wednesday, 23 March 2016 04:02:00 UTC

This archive was generated by hypermail 2.3.1 : Wednesday, 23 March 2016 04:02:02 UTC