Taking Clear Images Of Moving Objects; Improving The Image Quality Of Metallic And Other Shiny Surfaces - Omron FQ2-S/CH Series User Manual

Taking Clear Images of Moving Objects

For quick moving objects, the effect of blurring can be reduced by decreasing the shutter speed.
In HDR Mode, set the brightness value to a low setting.
• Relationship between Shutter Speed and the Brightness Adjustment Value in HDR Mode
Fast
0
1/60,000, 1/50,000,
or 1/4,155
Refer to the following page for the setting methods for the shutter speed and brightness.
Adjusting the Brightness: p. 67
Important
The lower the shutter speed/gain and brightness settings are, the darker the image becomes. If the Sensor is
used in a dark environment, make sure that the darkness of the image does not cause the measurements to be
unstable.

Improving the Image Quality of Metallic and other Shiny Surfaces

When objects with shiny surfaces are being measured, the lighting may be reflected off the surface and affect
the image.
To remove reflections, one of the following two functions can be used.
Function
HDR (High Dynamic Range) If objects have contrasting light and dark areas, the dynamic range can be made wider to
Polarizing filter (for Sensors
with Built-in Lighting)
HDR Function
The HDR function is used for objects that have a large difference between light and dark areas. For this kind of
object, clear images cannot be achieved with the standard brightness setting. The HDR function combines
several images of different brightnesses (shutter speed) so that the resulting image has a lower degree of
contrast and can be measured stably for the desired characteristic.
Inputting Images with a Limit Range of Brightness
70
Adjusting Image Quality
Moving speed
Brightness
Shutter speed
improve the quality of the images.
Specular reflections can be eliminated from an image by attaching a polarizing filter to the
Sensor.
If the measurement object must be moving, use a polarizing filter. Also, if reflections can-
not be sufficiently removed by using the HDR function, use a polarizing filter as well.
Slow
100
1/250
Description
Combining Images to Create an Image
with a Wide Dynamic Range
Dark
Bright
FQ2-S/CH User's Manual