Vivotek FE8173 Uživatelský manuál stáhnout pdf (Strana 57)

VIVOTEK

User's Manual - 57

Pixel Calculator

Advanced Mode

Click the Add button at the lower screen to create a pixel calculator window. Place your cursor on the

window to move it to an area of your interest, and change the size of window to t the area of interest.

Once they are drawn, the numbers of pixels of the sides of windows will appear. This allows you to

calculate if your current configuration fulfills a requirement, for instance, for recognizing the faces of

persons passing through a location. A facial recognition usually requires around 130 pixels per meter or

higher.

Pixel Calculator

The pixels thus calculated is listed at

the lower screen on a per-stream basis

depending on the frame size you congure

for each video stream.

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Vivotek FE8173 Uživatelský manuál Strana 57