Silicon Imaging SI-3300 MegaCamera, Инструкция по эксплуатации

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Silicon Imaging , Inc. 2004 Page 19 of 39 Company Confidential
Subsampling Skip & Bin Modes
Row and column skip modes use subsampling to reduce the output resolution without reducing field-of- view. The SI-
3300 also has row and column binning modes, which can reduce the impact of aliasing introduced by the use of skip
modes. This is achieved by the averaging of two or three adjacent rows and columns (adjacent same-color pixels).
Both 2x and 3x binning modes are supported. Rows and columns can be binned independently.
Skip/Bin Resolution
Row Skip
ly22 00xx
Column Skip
ly23 00xx
Row Skip + Bin
ly22 00xx
Column Skip + Bin
ly23 00xx
None 2048 x 1536 00 00 00 00
2x 1024 x 768 01 01 11 11
3x 682 x 512 02 02 22 22
4x 512 x 384 03 03 23 23
8x 256 x 192 07 07 27 27
The following table shows examples of register settings to achieve various resolutions and frame rates based on a
nominal 48MHz clock rate, such as 1920x1440 with a 3x bin & skip to achieve a 640x480 output at 48fps:
Bin 2-to-1: 2,048H x 1,536V (QXGA) to 1,024H x 768V (XGA)
NOTE:
Grs = binning of 4 Gr[s] in a 4 x 4 window; Gbs = binning of 4 Gb[s] in a 4 x 4 window.
Rs = binning of 4 R[s] in a 4 x 4 window; Bs = binning of 4 B[s] in a 4 x 4 window.
Bin 3-to-1: 2,048H x 1,536V (QXGA) to 640H x 480V (VGA)
NOTE:
Grs
= binning of 9 Gr[s] in a 6 x 6 window;
Gbs
= binning of 9 Gb[s] in a 6 x 6 window.
Rs = binning of 9 R[s] in a 6 x 6 window; Bs = binning of 9 B[s] in a 6 x 6 window.