Manufacturing processes within the pharmaceutical business are topic to notably strict authorized laws. Based on Good Manufacturing Follow (GMP), merchandise have to be manufactured to constantly top quality requirements
As a consequence of strict compliance laws, packaging for medical merchandise have to be accurately labeled earlier than it’s delivered to prospects. For this goal the Chinese language firm Shenzhen Jiangrun Xuneng Know-how has developed a classy machine imaginative and prescient answer that mechanically reads character codes utilizing OCR. The center of the applying is the usual machine imaginative and prescient software program MVTec HALCON. This allows the shopper to extend the effectivity of the inspection processes and considerably enhance product high quality.
Manufacturing processes within the pharmaceutical business are topic to notably strict authorized laws. Based on Good Manufacturing Follow (GMP), merchandise have to be manufactured to constantly top quality requirements. Accordingly, the rules impose strict necessities on the documentation of workflows and the inspection of products. Common checks are meant to make sure most security and efficacy of the merchandise.
The worldwide well being and meals firm H&H Group can also be immediately affected by GMP: as a way to reliably adjust to the laws, the producer should accurately label the packaging of its medical and beauty merchandise. For this goal, numerous info reminiscent of batch quantity, date of manufacture, and expiration date are printed on the cartons. The character combos have to be appropriate and full. That is the one approach to make sure that merchandise will be accurately recognized and that high quality necessities with regard to labeling are constantly met. It’s due to this fact important to verify the character codes fastidiously earlier than the cartons go away the manufacturing unit and are delivered to prospects.
Insufficient controls led to complaints
Till now, this management course of on the H&H Group was carried out purely manually, which proved to be very pricey and time-consuming. Because of the excessive variety of packages and the quick cycle price, inspection may usually solely be carried out on a random foundation. In some instances, this led to incorrectly labeled merchandise being delivered to wholesalers and different prospects. In consequence, complaints and grievances piled up, resulting in monetary losses, buyer losses, and critical harm to the corporate’s picture.
With a view to enhance the standard of product labeling, the inspection course of needed to be made extra environment friendly. To this finish, the managers on the H&H Group commissioned Shenzhen Jiangrun Xuneng Know-how to develop an acceptable answer. The corporate focuses on 2D and AI software program frameworks that focus totally on 2D and 3D imaginative and prescient options, together with localization, identification, and measurement of objects. The supplier focuses on a variety of industries, reminiscent of meals, medication, chemical compounds, packaging, automotive, and rail transport.
Machine imaginative and prescient platform automates visible inspection
Shenzhen Jiangrun Xuneng Know-how has developed a machine imaginative and prescient platform that allows the visible inspection of product labels on packaging to be absolutely automated. The letter-number combos are learn and checked utilizing fashionable optical character recognition (OCR) applied sciences. “This software introduced us with main challenges. The characters printed on the cartons are normally encrypted, with differing types and sizes of codes mixed. The characters are sometimes not situated precisely the place they need to be, however are offset. As well as, the letters and numbers are sometimes printed incorrectly, unclearly, or blurred on the packaging, which may result in issues in clearly recognizing the codes,” explains King Wang technical software engineer at Jiangrun.
One other problem is the quick cycle price of the inspection workflow. The characters have to be learn and checked at excessive velocity as a way to obtain most product throughput. This requires complete preprocessing by the OCR algorithms. That is the one technique to reliably discover the respective goal level, guaranteeing the very best potential recognition accuracy even with differing types and sizes of characters.
MVTec HALCON ensures exact identification and localization of characters
Jiangrun’s machine imaginative and prescient platform permits these complicated necessities to be addressed with precision. The usual machine imaginative and prescient software program merchandise MVTec HALCON, which type the guts of the answer, are used for this goal. The HALCON algorithms are used for pre- and post-processing of the photographs in addition to for the exact identification and localization of characters. The software program should first exactly acknowledge the character background within the picture and discover a horizontal reference line to find out the precise place of the characters. Within the course of, a area of curiosity (ROI) is outlined inside which the numbers and letters, reminiscent of an expiration date or batch designation, are acknowledged, learn, and checked. By evaluating them with reference characters, errors within the labeling will be reliably detected.
Dynamic OCR with excessive stability and velocity
“Because of MVTec HALCON, we had been capable of considerably shorten the undertaking cycle, scale back the prices for growth, operation, and upkeep of our machine imaginative and prescient platform, and considerably enhance the effectivity of implementation. As well as, we’re capable of implement dynamic optical character recognition with excessive stability and processing velocity. New forms of merchandise, markings, or fonts can be flexibly added to the applying. This enables us to optimize OCR inspection, cowl a variety of various character specs, and obtain good outcomes even with show errors or incorrectly positioned characters,” says King Wang.
The top buyer additionally advantages from the machine imaginative and prescient platform powered by MVTec HALCON: The H&H Group can automate the complete inspection course of and relieve its workers of tedious handbook work. This improves the effectivity of inspection workflows and maintains the standard of product labels at a constantly excessive degree. In consequence, the variety of buyer complaints is diminished to a minimal and the model’s picture is considerably enhanced.
Additional purposes with MVTec HALCON are deliberate
Based mostly on the profitable collaboration, Jiangrun plans to implement additional picture processing purposes with MVTec HALCON sooner or later: “Now we have a spread of normal software program frameworks that use HALCON to implement machine imaginative and prescient capabilities. This allows us to comprehend complicated picture processing initiatives for our prospects far more simply and effectively. I want to point out the intensive change with our MVTec colleagues in China. Their professionalism, technical recommendation, and coaching helped us to implement the undertaking shortly,” concludes King Wang.
About MVTec Software program GmbH
MVTec is a number one producer of normal software program for machine imaginative and prescient. MVTec merchandise are utilized in a variety of industries, reminiscent of semiconductor and electronics manufacturing, battery manufacturing, agriculture and meals, in addition to logistics. They permit purposes like floor inspection, optical high quality management, robotic steerage, identification, measurement, classification, and extra. By offering fashionable applied sciences reminiscent of 3D imaginative and prescient, deep studying, and embedded imaginative and prescient, software program by MVTec additionally allows new automation options for the Industrial Web of Issues aka Trade 4.0. With areas in Germany, the USA, France, Benelux, Spain, China, Taiwan and South Korea in addition to a longtime community of worldwide distributors, MVTec is represented in additional than 35 nations worldwide. www.mvtec.com
