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CHR70M

Evaluation System Manual

Every register setting in this list refers to a sensor register (see data sheet for complete register map). The user of the

evaluation system can only change the 'value' of the registers. The other entries are informational. (Tip: the register

addresses (third column from the right) match the address values in the register map in the datasheet).

Upon hitting the enter key after changing a value of a register, it is uploaded to the FPGA. Note that it is allowed to

change register settings while in video mode. The changes will reflect immediately in the displayed images.

4.2.3 I

MAGE AREA

The images that are acquired from the sensor are displayed in the 'image area'. Only one image is displayed. If a

sequence of frames is acquired, the entire burst is in the memory. A selection switch in the 'image statistics area' can

be used to select which frame from the sequence is displayed.

Next to the image plane is a small toolbar with image controls. These can be used to zoom in the image and to select

region of interest (ROI) contours for the image statistics. Next figure shows this toolbar.

Of these tools, the following 5 are most commonly used:

1. ZOOM: When selected, the mouse pointer turns into a magnifying glass when moved over the image. Every

click will zoom into the image by 1X. When holding the SHIFT key on the keyboard, the mouse pointer will

turn into a magnifying glass with a small 'minus sign' in it. Clicking in the image with the SHIFT key held will

zoom the image out by 1X.

2. PAN: When the image is zoomed, this function allows the user to pan the image.

3. POINT ROI: Allows the user to set an ROI in the image of exactly 1 pixel. Click on the image to place the point

ROI.

4. LINE ROI: Allows the user to set a line ROI in the image. Click on the image to set the first point of the line.

Hold the left mouse key and drag to where the end point of the line should be. Release the left mouse

button to place the line.

5. RECTANGLE ROI: Allows the user to set a rectangular ROI in the image. Click on the image to set the first

corner of the rectangle. Hold the left mouse key and drag to the point where the opposite corner of the

rectangle should come. Release the left mouse button to place the rectangle.

More information on the ROI statistics can be found in the 'image statistics area' section.

Version: v3

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