* There are a large number of characters on the product, with varying character sizes

It is recommended to choose the Akusense Vision Sensor CDS series, which has a compact and flexible body and integrates image acquisition, processing, and communication functions. It provides rich I0 interfaces and can access multiple input and output signals;

This sensor is equipped with high-precision image processing, deep learning algorithms, and IP67 industrial grade protection. It is easy to operate and can provide a multifunctional, modular, and highly reliable machine vision solution.

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1. Image preprocessing:

Perform denoising, binarization, smoothing, and other operations on scanned or captured document images to improve image quality and text clarity. Through preprocessing, interference factors such as background noise and shadows can be effectively removed from the image, providing high-quality input images for subsequent text localization and recognition.

2. Position correction:

Responsible for locating and segmenting text regions in preprocessed images. By using algorithms such as projection analysis and edge detection, OCR systems can accurately determine the position and size of text regions and separate them from the background. The accuracy of text positioning directly affects the subsequent recognition effect, so this step is crucial for the performance of OCR systems.

3. Code reading and OCR recognition:

The OCR algorithm recognizes the located text area through a trained model and converts the text in the image into computer editable text.

By triggering the machine vision sensor with a visual sensor, the label image is sent to the system. The system extracts and analyzes the image and compares it with the set information to determine whether the product has missing or incorrect information such as coding and production batch number.

4. Test result output:

When missing, incomplete, or printing errors are detected, the system emits an audible and visual alarm and sends out a rejection signal.

The detection results and effect images are displayed on the HMI main interface for the staff to view and process in a timely manner.

Verification shows that Akusense CDS-X20 series visual sensor is suitable for "code reading+OCR recognition" on printing machines. By applying the CDS-X20 visual sensor, enterprises can greatly improve the detection efficiency and accuracy of barcode printing, reduce production costs and waste, and enhance product quality and competitiveness.