Trevista CI Dome Features

The Trevista CI Dome is a hardware and software-based image formation and inspection solution. Using the power of VisionPro software, the Trevista CI Dome enhances inspection processes of parts with shiny or matte surfaces. The built-in Trevista vision tool within VisionPro uses patented “shape from shading” technology to compose high-quality topographical images quickly. Use integrated AI-based vision tools to analyze surface defects and differentiate cosmetic from critical flaws.

The Trevista CI Dome solution helps:

  • Decrease scrap rates and costs
  • Reduce inspection times
  • Catch more flaws, faster
Trevista Computational Imaging Dome
Trevista Computational Imaging Dome

Unmatched image quality

Many shape from shading techniques rely on ring lighting or multiple bar lights, which limit the amount of defect details due to poor lighting angles. The Trevista CI Dome delivers greater detail because it illuminates the component from all angles, revealing more flaws. Using a sequence of images taken from different lighting quadrants, the patented Trevista shape from shading algorithm creates a more detailed set of composite images with higher quality and repeatability, enabling a more robust inspection process.

Composite images created by VisionPro’s Trevista shape from shading tool


Faster image processing

High-volume manufacturers require high speed to keep up with demand, deliver exceptional quality parts, and maximize throughput and efficiency. The Trevista CI Dome increases efficiency and throughput by capturing and composing topographical images of part surfaces up to two times faster than other computational imaging solutions. Using the shape from shading tool within VisionPro and diffused dome lighting, the Trevista CI Dome composes high-quality topographic images of contoured parts at very high speed, regardless of orientation or position, which reduces the inspection time required per part.

Trevista CI Dome capturing images of battery cells for defect analysis.
Trevista CI Dome capturing images of lithium-ion batteries for defect analysis.
Trevista depth images separate shape from texture

Greyscale images (L top and bottom) show very little information regarding surface deformation. Depth images (R top and bottom) indicate the relative change in elevation or depression of the surface based on pixel brightness or shading intensity.

Highly detailed surface visualization

Manufacturers often accept larger-than-desired overkill rates of their parts to ensure quality and throughput targets, which leads to higher scrap and costs. The diffuse light of the dome captures light reflections from every angle, illuminating concave or convex shapes more effectively, which more accurately captures surface slope information. AI-based vision tools use this information to classify surface defect severity. Assessing and classifying defect severity helps reduce overkill, decrease scrap rates, and lower costs.

Seamless integration with Cognex VisionPro software

Leverage the power of Cognex VisionPro to evaluate images generated using the Trevista CI Dome.

  • Quickly acquire camera and light controller settings within VisionPro using the built-in Trevista Acquisition Wizard.
  • Generate high-quality topographic images using the embedded Trevista tool for shape from shading image computation.
  • Assess defect severity using Trevista composite images with integrated AI-based tools for defect detection and classification
  • Build machine vision inspection applications using Cognex vision software.



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