Vatech A9 (PHT-30CSS)
Technical manual
VDH-TeM-098
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COPYRIGHT© 2020 VATECH.
1.6. Bad pixel spec. & definition
1.6.1. Bad pixel definition
Dead pixel: no responsive pixel (value : 0 or 16384)
Non-uniform response pixel: Pixel that shows a ±30% response deviation from
neighboring pixels.
1.6.2. Bad line definition
Bad pixels over 50% of effective area width and height are defined as bad lines
When having an effective area of M x N, 1 x M or N x 1 or more is defined as a bad
line
Total max. 7 line
There should be at least 5 lines of normal pixels between bad lines.
1.6.3. Cluster definition
Continuous bad pixels with 3 x 3 or more in a row (single bad pixels are surrounded by
bad pixels in all directions (up/down/left/right/diagonal))
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