> Line Scan Tutorial

Translating Objects

Linescan imaging technology uses one single line of sensor pixels to capture a two-dimensional image. The second dimension results from the motion of the object underneath the camera, or from the motion of the camera over the object which is held still. A continuous or finite length image is captured line-by-line, that can be analysed with software to the specified machine vision requirements.

Rotating Objects

Linescan imaging is very convenient when cylindrical objects need to be inspected. The setup is straightforward and there is no need for tricky and expensive stroboscope lighting or alike like area scan imaging does.
 

ADVANTAGES
Linescan imaging has many benefits against alternative image capture techniques.

Cost-effectiveness:
one 2k (pixels) linescan camera provides the same resolution as two 1-Meg (pixels) area scan cameras... and the price-per-pixel advantage increases with increasing resolutions. Additionally, images of fast moving objects come sharp and crisp with no need for expensive and cumbersome strobe lighting and shuttering.

Superior Sensitivity:
the pixel fill-factor is crucial to quality imaging and subsequent image analysis, particularly at high speed. It reaches 100% with linescan sensors thereby delivering maximal sensitivity.

High Dynamic Range:
the signal-to-noise ratio is much higher than other imaging technology can deliver.

No Waste of Processing Resources:
there is no frame overlaps with line scanning, which eliminates all those redundant data that uselessly take precious processing resources, particularly in high-speed, high-resolution applications.