User manual

Culture Myograph System Model 202CM

All control bars can be “undocked” and re-sized for convenience in a given

experiment. Once the control bar has been re-sized it may be “docked”, then careful

sizing and positioning is required if the interface is to maintain a well-balanced

appearance. Users are advised to experiment with these facilities to fully appreciate

their potential.

Once a user has designed and congured the appearance of the interface, the setting

may be saved and subsequently loaded. The default setup (Setup 0) is initially set

to the factory defaults, however the user may change this at any time (see How to

Customise a User Interface). When VediView

™

is closed the user set-up remains in

memory and may be recalled. The factory defaults may be restored at any time and

can never be changed by the user.

3.3.2 Frame grabber

The VediView

™

software is fully integrated with a PICOLO frame grabber. The frame

grabber control bar is used to congure the current status of the video acquisition

and to manipulate the display of frames in the interface. The real time frame-grabbing

mode may be switched off when not in use or when the user wishes to save a frame

to le for future reference. A zoom in/out facility is also provided. The pop-up menu

on the control bar (select ) can be used to access all functions of the frame grabber

bar. This pop-up menu can also be revealed by a right mouse button click when the

Windows cursor is above the control bar. A more detailed description of the functions

available in the frame grabber control bar follows under these sub-headings:

• Displaying Images

• Image Calibration

• Zooming

• Saving an Image

• Frame Grabber Conguration

• Distance Measurement

Note:

When conguring the camera and frame grabber it is important to ensure that the

image is NOT saturated, as this may affect the quality of the edge detection analysis.

The presence of completely white sections within the image indicates a saturation

condition, which may be rectied by either reducing the light source intensity or

reducing the camera gain using the frame grabber conguration.

Figure 3.12 Frame grabber

control bar