Acquisition Section; Video Decoder - Matrox Orion Installation And Hardware Reference

Setting up the grab
section

Acquisition section

The acquisition section of Matrox Orion provides two different
methods of capturing images. It uses a video decoder to capture
monochrome video in RS-170/CCIR format, or composite
(CVBS) or component (Y/C) color video in NTSC/PAL format.
Matrox Orion uses an RGB digitization section to acquire
monochrome or component RGB analog video from standard
cameras.
Matrox Orion has three 256x8-bit input LUTs, which are
included to map the video data stream. Matrox Orion also
supports an external synchronous trigger which can be used for
capturing the next valid field or frame. The board can also
accept an external analog composite sync input.
When digitizing data on Matrox Orion, the values 0 and 255
are reserved; therefore, the range of possible pixel values spans
from 1 to 254. See the Pixel Converter section.
To program the acquisition section, allocate it (using MIL-Lite
MdigAlloc()) with an appropriate DCF (supplied or created). If
required, you can make minor adjustments to common
acquisition parameters at run time (using MIL-Lite Mdig...()
commands). For more specialized adjustments, use the Matrox
Intellicam program to adjust the DCF file.

Video decoder

A multi-standard video decoder is used to convert analog
monochrome video in RS-170/CCIR format, or composite
(CVBS) or component (Y/C) color video in NTSC/PAL format, to
digitized video. The decoder can output the video stream in
either BGR32 packed or YUV16 (YUYV) packed formats.
Acquisition section 33