Toshiba AI Technology Catalog

  • Media recognition

Unsupervised pre-training method for industrial images

We built a dedicated model for industrial fields using small number of real images, for highly accurate analysis even with specialized images.


  • Images captured under special conditions or with specialized equipment often involve significant time and cost, resulting in a smaller scale of available images.
  • In some cases, pre-training involves using a large natural dataset consisting of images captured with conventional cameras  cannot be effectively used for industrial images.
  • We built a pre-training model for industrial images by deliberately generating artificial images that include local structures within target images.

Applications



  • Visual inspections of products on manufacturing lines
  • Inspection of biological images

Benchmarks, strengths, and track record



  • We evaluated the accuracy of this AI using five publicly available non-natural image datasets (infrared, microscopic, wafer, pathological, and fundus images).
    For each dataset, a small number of images, ranging from 40 to 1,000, were randomly selected to generate between 9,000 and 30,000 pre-training images for the image classification task.
    As a result of the evaluation, using this technology for pre-training achieved higher accuracy than pre-training using ImageNet, a typical large-scale natural image dataset that contains 1.3 million images.

Inquiries



Inquiries to Toshiba Corporate Laboratory (Komukai region)

Please include the title “Toshiba AI Technology Catalog: Unsupervised pre-training method for industrial images” or the URL in the inquiry text.
Please note that because this technology is currently the subject of R&D activities, immediate responses to inquiries may not be possible.