Baumer SXC10c User Manual - Page 27

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8.1.4.

Look-Up-Table

The Look-Up-Table (LUT) is employed on Baumer monochrome cameras. It contains 2

(4096) values for the available levels of gray. These values can be adjusted by the user.

8.1.5.

Region of Interest (ROI)

With the ROI function it is possible to predefine a so-called Region of Interest (ROI). This

ROI is an area of pixels of the sensor. On image acquisition, only the information of these

pixels is sent to the PC. Therefore all the lines of the sensor need not be read out, which

decreases the readout time (t

This function is employed, when only a region of the field of view is of interest. It is coupled

to a reduction in resolution.

The ROI is specified by four values:

▪ X

- x-coordinate of the first relevant pixel

▪ Y

- y-coordinate of the first relevant pixel

▪ Size X

- horizontal size of the ROI

▪ Size Y

- vertical size of the ROI

8.1.6. Partial Scan Readout

For the readout of the ROI, the vertical subdivision of the sensor (see 2.1.3. Readout

Modes) is unimportant – only the horizontal subdivision is of note.

Both sensor halves are read out simultaneously as displayed in the subsequent figure.

The readout is line based, which means always a complete line of pixels needs to be read

out and afterwards the irrelevant information is discarded.

Due to the fact, that the sensor halves are always read out symmetrically, the readout time

is significantly affected both by the size of the ROI and also by its position.

readout

). This increases the frame rate.

readout

Start ROI

End ROI

◄ Figure 19

Partial Scan:

Parameters of the ROI.

◄ Figure 20

Partial Scan: Readout.