Pixel Data - Allied Vision Technologies F-201B AVT Dolphin Manual

6.5.3

Pixel Data

Pixel data are transmitted as isochronous data packets in accordance with the 1394
interface described in IIDC v. 1.3. The first packet of a frame is identified by the „1" in
the sync bit (sy) of the packet header.
Figure 19 Isochronous data block packet format: Source: IIDC v. 1.3 specification
Video data for each pixel is output in 8 bit format. Each pixel has a range of 256 scales
of gray. The digital value 0 is black and 255 is white.
The following is a description of the video data format for the different modes. (Source:
IIDC v. 1.3 specification)
Figure 20 YUV 4:2:2 and YUV 4:1:1 format: Source: IIDC v. 1.3 specification
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