ASE | Updates

By ASE Team

ASE's high-resolution area scan cameras ensure high detection rates


Dear Companists,

The logistics industry’s OCR gate market is dominated by a few suppliers. While our competitors rely on one-dimensional line scan cameras and gain the second dimension through the most uniform vehicle movement, we work with high resolution 2-D area scan cameras. We’ll explain why in this update.

The biggest advantage of area scan cameras is that they repeatedly record the signs (e.g. wagon and container numbers) during transit, thus making it possible for them to be looked at, recognized, and read from various angles. This way, signs blocked by obstacles like railings, stirrups, or cones can be added if they are visible from another perspective.

The area scan cameras’ repeated recording is particularly useful for the documentation of damages, which can thus be analyzed from several directions. In the case of containers, for example, the doors and ends can be viewed (Fig. 3). A line scan camera on the other hand looks at wagons vertically and only knows one perspective. Line scan cameras generate only a single image of the vehicle with almost any image width. However, high image quality and detection rates are only possible if the vehicle does not change its speed or stop. A condition that is hard to meet for train lengths of up to 400 meters.


Observe entire wagons and trains through “stitching”

Area scan cameras on the other hand have a fixed image width that is not sufficient for a complete portrayal of a wagon or a whole train. ASE uses the so-called “stitching” method, which allows for the creation of images customized for the vehicle length: narrow image strips are taken from the center of the image and joined together with the adjacent strips (Fig. 2). Complete wagons and trains can be displayed without distortions, even if the speed changes or they come to a standstill (Fig. 1.)


ASE -  Flächenkamera

Fig. 1: Stitch picture made with area scan camera, even at standstill


ASE -  Flächenkamera2

Fig. 2: Image with variable width made by stitching; only vertical perspective


Naturally, repeated recordings cause large amounts of data that have to be transmitted and analyzed. Our intelligent Numberfinder software, which is based on a highly efficient OCR algorithm, can handle this easily and delivers the renowned high detection rates of well over 95%.


Deutsche Bahn wants to strengthen freight transport through digitalization

Richard Lutz, Head of Deutsche Bahn, considers the economic development of DB Cargo, the freight transport division, to be on the right track. At the company's New Year's reception, the CEO based his optimism on the new "Digital Rail Germany" (“Digitale Schiene Deutschland”) program, which represents a fundamental technical change in the railway sector and an unprecedented development boost for the German railways. It will make a denser train sequence and better utilization of the railways possible. The aim is to create 20% more capacity in the German rail network. (Source: Verkehrsrundschau).

Intelligent image processing is one of the basic technologies to digitalize freight transport. The automation of logistical processes among supply chains includes, among other things, the fully automated surveillance and registration of the arrivals and departures of goods. Our OCR gates NUMBERCheck – video gate for rail & road offer appropriate and proven solutions.


Greetings from Bruchsal,

Your ASE team


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