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| CSN Number: |
04031001 |
Date: |
Mar 10, 2004 |
| Submitted by: |
Ziv Ben Zuk
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Updated: |
Dec 31, 2004 |
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HD2000 and HD3000 Video Resolutions
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| Emblaze-VCON Product: |
HD2000, HD3000 |
| Non-Emblaze-VCON Product: |
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Problem Description:
The HD2000 and HD3000 reports video resolutions I am not familiar with such as SIF, ISIF, ... can you explain? |
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Resolution:
These systems make use of several video resolutions to get the best quality for the user's camera and bandwidth.
Users with PAL camera:
Since the PAL resolution is 704x576, the height of all the resolutions should be an integer fraction of 576 (288 or 144)
QCIF: 176x144
CIF: 352x288
ICIF: 352x288 but encoding both even and odd fields of the video which effectivly get a frame rate of 50fps. The "I" prefix stands for "Interlaced"
4CIF: 704x576 (used only for Data presentations)
Users with NTSC camera:
Since the NTSC resolution is 704x480, the height of all the resolutions should be an integer fraction of 480 (240 or 120)
QCIF: 176x144 (there is no QSIF resolution in use)
SIF: 352x240
ISIF: 352x240 but encoding both even and odd fields of the video which effectivly get a frame rate of 60fps. The "I" prefix stands for "Interlaced"
4CIF: 704x576 (used only for Data presentations using the data utility, so it's not a native NTSC format).
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Related Notes or Documents:
none
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