New Machine Vision Software Incorporates Global Context Anomaly Detection

MVTec Software, an international provider of machine vision software, has announced the release the new version of its HALCON machine vision software. The highlight is the new technology ‘Global Context Anomaly Detection’, which is available in HALCON 22.05 in this form as a world`s first. As an expansion of the long-established anomaly detection technology, this new feature raises deep-learning-based fault detection to a whole new level.
The new release also includes significant expansions such as new features as well as new improvements to HALCON’s core technologies. As a result, the software now enables the practical implementation of software solutions for even more demanding applications across a wide range of industries. Companies using this machine vision software benefit from more efficient production, especially in application areas like quality assurance.

“With Global Context Anomaly Detection, we’re providing an impressive demonstration of our technological market leadership in the field of machine vision software. The new technology provides our customers with brand-new possibilities, such as for inspection activities. We’ve also added a deep-learning-based training option to the Deep OCR feature. With HALCON 22.05, we’ve once again managed to implement new features as well as useful enhancements of existing technologies,” explains Mario Bohnacker, Technical Product Manager for HALCON at MVTec Software GmbH.

Understanding An Image’s Logical Content

By detecting logical anomalies in images, HALCON 22.05 opens up completely new application areas and represents a further development of the deep learning technology of anomaly detection. Until now, it has only been possible to detect structural anomalies strictly on a local level. The new Global Context Anomaly Detection feature is currently the only technology that can ‘understand’ the logical content of the entire image. Like the existing anomaly detection in HALCON, Global Context Anomaly Detection requires only ‘good images’ for training. The training data does not need to be labeled. The technology can thus detect completely new anomaly variants, such as missing, deformed, or incorrectly arranged components of an assembly, for example. This opens up possibilities in brand-new areas, such as the inspection of printed circuit boards in semiconductor manufacturing or the verification of printing.

Individualized Training For OCR Applications

Using HALCON’s Deep OCR, users can efficiently address OCR applications for a variety of application areas. The release of version 22.05 now expands this technology to include a training function that allows users to perform individualized training based on their own application dataset. This makes it possible to handle even the most complex applications, such as reading text with poor contrast (on tires, for example). As a further benefit, it is possible to train special characters and print styles that are very rarely used. Ultimately, training for Deep OCR significantly improves performance and user-friendliness and makes applications even more robust.

Optimized Print Quality Inspection Of ECC200 Codes

HALCON supports various standards for evaluating the print quality of 1D and 2D codes. This ensures that all readers will have no trouble reading the printed code in actual practice. Version 22.05 brings further improvements to the print quality inspection (PQI) of bar codes and data codes, making the determination of the module grid for the print quality inspection of the ECC200 code much more robust. Moreover, the PQI of 2D data codes is now up to 150 percent faster. And finally, the user-friendliness of the PQI of 2D data codes has been improved through the addition of a new method for calculating the evaluations.

HALCON 22.05, available from May 25th 2022,  offers additional improvements including a new operator that helps to optimize image contrast locally and another new operator that permits image smoothing with randomly shaped regions.

For more information: www.mvtec.com

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