Bbc Responds To Accusation Of Half Hearted Approach To 3D3d broadcasting
Posted Yesterday, 06:16 PM
Posted Yesterday, 07:37 PM
1. A half-width side by side picture even using the 1920x1080 format* provides inadequate horizontal resolution for the 3D effect to be satisfyingly clear. (I myself, despite being stongly attracted to stereoscopic 3D, find 960 + 960 suitable only for close ups, not medium distance shots of a sports field, etc..)
2. The use of a 50Hz television standard results in shutter glasses operating at 100Hz, a suboptimal rate compared with the 144Hz at a public cinema. There is flicker, and a phase delay, between presentation of the Left and Right versions of each deinterlaced frame. (Televisions using passive glasses overcome the phase delay but introduce a fine venetian blind effect.)
3. The use of an interlaced format (50i, also known as 25i) reduces resolution during movement, reducing the clarity of the 3D effect for viewers concentrating intently on the action.
I find there is a world of difference in 3D satisfaction between watching
- a 24p 3D movie in a cinema at an alternation rate of 144Hz with 2K horizontal resolution; and,
- television coverage of 50i side-by-side 3D sport at an alternation rate of 100Hz, with only 1K horizontal resolution.
* Here is an article referring to the increase to 1920 horizontal pixels by the BBC HD channel for the London Olympics 3D coverage: http://www.bbc.co.uk...r_wimbledo.html
Edited by MLXXX, Yesterday, 07:51 PM.
Posted Yesterday, 08:37 PM
I dont mind sbs bd rips on my epson but on my 2nd smaller lcd even full 3d bd iso's dont do the trick ;too small . Not a lot of big tvs in most uk small homes /bedsits was thinking too ..
Posted Today, 01:30 AM
Yes a larger screen certainly helps appreciation of the 3D effect.