Area scan cameras and line scan cameras are different types of imaging technology, each suited to specific applications. Area scan cameras: They acquire two-dimensional images of the whole field of view at once. A 20-megapixel area scan camera, for example results in high resolution images of pixel sizes up to 5472 x3648 — a must when demanding extensive image capture from within one single snapshot.
Line scan cameras, on the other hand, do so one line at a time. This process works well for examining items in constant movement. As quoted in the 2024 data of Imaging Technology News, a line scan camera with 4096-pixel resolution is able to scan objects at up to 200 meters per minute without losing detail. Industries like textiles and electronics require this high-speed scanning capability because they continually inspect long, moving products.
The difference between the two types of cameras comes to their way of image acquisition. Area scan cameras have a matrix of sensors to capture the scene as a whole, they work best for subjects that are static or barely moving. According to a report on area scan cameras in 2024, done by Machine Vision Online explained that apart from barcode reading and surface inspection where the field of view does not change.
Line scan cameras capture images line by line, using a single row of sensors. This delivers a fast motion-capture imaging procedure for high-speed production lines. Forwarding to a 2024 case study in Automation World, they demonstrate how line scan cameras on high-speed conveyor systems can inspect items moving faster than 100 meters per minute which offers detailed inspection of long continuous products without distortion.
The depth of field DOP also varies between the two. Area scan cameras provide greater depth of field, which is useful when working with multiple objects at different distances in a single image. Comparatively, line scan cameras use a narrow depth of field but are exceptional in taking detailed images of objects moving along the sensor.
Whether to use area scan or line scan cameras often is application-dependent. Area scan cameras are used with static inspections or when the entire view needs to be captured in one single image. Conversely in high-speed inspection of long, moving items where maintaining image quality across length is important — line scan cameras work better.
If you want to know more information on the different camera options available for area scan, click here: area scan camera