Deep Learning and Multishot Technologies

Deep Learning

The analysis of images through Deep Learning opens the way to the possibility of automating an increasing number of industrial processes in a wide range of sectors. From the inspection of surface defects to the sorting of variable parts, control of final assemblies, evaluation of product quality, and reading of complex texts, Doss Visual Solution delivers. By applying Deep Learning, we have a system able to autonomously classify data and structure them hierarchically, finding the most relevant and useful ones for solving problems and improving its performance with continuous learning – just like the human mind does. Artificial neural networks apply a “deep” learning system based on a greater number of levels, or layers, hidden in the neural network. Traditional ones contain two to three layers, while deep neural networks can contain over 150.

Deep learning neural network infographic

The scalability of Deep Learning, thanks to the increase in available data and algorithms, is what differentiates it from Machine Learning. Deep Learning systems, in fact, improve their performance as data increases while Machine Learning applications (or rather, the so-called superficial learning systems), once a certain level of performance has been reached, are no longer scalable even by adding examples and training data to the neural network.

  • Acquired image
  • Defect on which the system has been trained


In the world of automatic inspection, it is essential to obtain high-quality images. To do this, it is not so much the type of camera, the quantity of lenses or their quality that matters, much less the maximum aperture of the diaphragm. A good image relies on light.

Light management is sometimes taken for granted and often represents a stumbling block in identifying defects. The main feature of light is to delineate shapes and volumes of objects. Depending on how we illuminate it, the physiognomy of the object changes completely, and pieces that were previously compliant turn out to be different.

Doss Visual Solution’s Multishot tool allows each camera of the viewing station to obtain multiple images of the same piece in a split second, each with a different lighting condition.

The advantages? No-compromise lighting, guaranteeing extreme precision for identifying defects.

Three images of the same pieces in differt light conditions

Black and white Multishot of a small piece of equipment
Second reverse Multishot of a small piece of equipment
Multishot of a small piece of equipment


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