Microscan MS-Q Imager Manual de usuario descargar pdf (Pagina 108)

Select Region of Interest

Save changes whenever you reconfigure Imager settings.

Save

Settings

Clear

all Data

Default

to USB

Clear XML

Rules

Default

to PS2

Select Region of Interest

You can speed up the decode rate and lower your chances of reading the wrong symbol

by narrowing the region of interest, the pixel area in the Imager that is evaluated during

a read attempt.

If your application uses symbols that are significantly and consistently smaller than the

default decode zone, you may be able to define a smaller decode zone.

At the heart of the Imager is a CMOS where light is

collected by a pixel array of 1024 x 1280. One half of

this array collects light from the near field, the other

from the far field.

The sketch to the left represents the Imager array

which in its entirety is a 1024 x 1280 array, one half

which (1024 x 640) is applied to the near field, the

other to the far.

In the default decode zone, all 1024 x 1280 pixels are

candidates for decoding. When you select 512 x 512,

the region of interest is narrowed to that shown by the

dashed lines.

You can experiment by reading in any of the symbols below and testing your new

decode zone against your application, or you can pre-determine your region of interest

by following the steps described in “Calculate FOV from Tables” on page 9-3.

1-Dimensional Symbols Only

(200 x 1024 pixels)

Small 2-Dimensional

Symbols

(480 x 480 pixels)

Medium 2-Dimensional

Symbols

(512 x 512 pixels)

Large 2-Dimensional

Symbols

(640 x 640 pixels)

Default 2-Dimensional

Symbols

(1280 x 640 pixels)

Casts the broadest

possible FOV.

1024

640

512 X 512

1 2 ... 103 104 105 106 107 108 109 110 111 112 113 ... 203 204

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Microscan MS-Q Imager Manual de usuario Pagina 108

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