Detailed advantages of Digital Imaging Technology

Ji LaserBarcode scanningAfter the technology, let's take a look at the digital imaging technology. Digital Imaging Technology is divided into Area-type digital imaging devices and linear imaging devices. What is the difference between an area-based digital photo generator and a linear photo generator? What are their respective advantages? See the following analysis.

I. Area-type photo Generator
            The area digital photo generator uses different bar code decoding methods, but its ultimate goal is the same: to quickly and efficiently read the bar code. The area imaging device emits LED light to illuminate the target bar code. Similar to the principle of digital camera photography, the lens will project the bar code image (and the area around the bar code) to a two-dimensional array, and the light is converted into an electronic signal to construct a digital image. The decoder software in the photo generator then finds the bar code in the image and uses advanced DecodingAlgorithmProcess the data. Similar to a laser scanner, the camera verifies the barcode data through its checkpoint and forwards the information to the connected host.
          Area-based digital imaging devices have many advantages in data collection:
    1) Division One-dimensional Barcode In addition, the area imaging device can also read two-dimensional code, which can accommodate a significant increase in the amount of data. This feature is helpful when symbols are needed to encode more information. It is helpful when symbols are used to encode more information, for example, in applications such as transportation, logistics, and tracking.
    2) The Area imaging device can read the bar code in an omnidirectional manner, so you do not need to adjust the label direction according to the scanning device.
    3) In addition to bar code decoding, some high-performance area imaging devices can also collect and transmit images for signature collection and other imaging applications (such as scanning documents. Therefore, you do not need to use other devices (such as desktop Barcode Scanner ), Which can not only save the counter space, but also reduce costs and maintenance costs. In addition, it can be used to record images of damaged bins in delivery proofs, on-site services, freight and receipt applications and as evidence of the conditions for claims.
    4) The Area-type photo generator can also read the direct component tagging (DPM), which is a method for permanently marking products or components for tracking throughout the product or component lifecycle. The popularization of DPM achieves serialization of unique components to ensure product quality and improve their tracking efficiency in various fields (such as the pharmaceutical market, this helps enterprises comply with tracing regulations.

2. Linear imager
the method for collecting bar code data is similar to that for area-based imaging devices, it also projected the LED light onto the bar code, and then the lens focused the bar code image on the CCD or CMOS sensor. Then, the decoding algorithm analyzes the peak and valley values of the signal and collects the barcode data.
what is different from the area-based image generator is that, the linear imager uses sensors to collect only one line of pixels in the image. Therefore, linear imaging devices can only decode one-dimensional codes, but cannot decode the entire image or two-dimensional codes as area imaging devices do. In addition, laser scanners provide cost-effective, intuitive targeting, better motion tolerance, and reliability and durability. Therefore, they are applicable to almost all one-dimensional scanning applications, laser scanners are more appropriate than linear imaging devices.
, now you should have a clear understanding of the advantages of laser scanning technology and digital imaging technology, so please continue to pay attention to the scanning network. Next we will discuss their respective applicable markets and applications, which bar code scanning technology is more suitable for your application? The results will be announced soon. Coming soon.