CVS trevista CAM

The intelligent camera unit for shape-from-shading

Trevista CAM closes the gap between simple applications for intelligent cameras and demanding surface inspection tasks. It is based on the patented trevista illumination in combination with a powerful smart camera, pre-loaded with either Teledyne DALSA's Inspect or Sherlock machine vision software.

The CVS trevista CAM is ideal for applications that require inspection of topographical and textural details of parts, even if they're challenging glossy/curved surfaces or trim parts. The preconfigured system means you can unpack and start testing right away.

Advantages of CVS trevista CAM

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Out-of-the-box solution with minimal engineering required

The Adlink NEON 4 megapixel smart camera and lens is preconfigured with either iNspect Express or Sherlock measurement software from Teledyne DALSA and is integrated into a domed trevista illumination system. The industrial smart camera solution is ready to be integrated into a manufacturing process with standard interfaces for higher level control.

With two levels of software, integrators have the flexibility to be able to tackle any application that requires the inspection of topographic or textural features. iNspect Express allows you to quickly deploy a vision application without great image processing experience, while Sherlock provides the advanced, rich set of tools and capabilities to solve the more challenging applications.

The compact unit includes everything required for a powerful surface inspection system in a small footprint. Trevista systems are available as complete imaging solutions featuring all necessary hardware and software components. The robust design is especially suited for use in industrial environments.

Cost effective system to read embossed symbols on difficult surfaces

By extracting the topography of the surface, the trevista solution has all of the information required to be able to identify embossed datamatrix codes and characters (or even, raised, braille text). The latest CVS trevista CAM offers a low cost option to the technology. The CVS trevista CAM uses a high performance smart camera that includes everything to deliver a standardised solution. The camera, software, and lighting are fully configured to help quickly commission a system with a proven surface inspection lighting technique. Topographical information is extracted into several accessible result images, which can then be analyzed using powerful image processing tools.

High reliability

With over 10 years of experience tied into its development, the trevista is a tried and tested surface inspection system that uses innovative, patented techniques.

You can rely on a system that has proven to deliver on the most challenging applications.

The trevista process

trevista is based on the patented shape-from-shading technology: diffuse structured lighting guarantees optimum illumination from different directions. Thus, even the most difficult shapes can be fully inspected. The trevista process closes the gap between 2D image processing and optical 3D shape recognition. It combines the speed of 2D image processing and the precision of 3D recognition.

Topographic images are used for the three-dimensional presentation of surface shapes and the presentation of defect characteristics with depths of only a few microns
Generation of a textured image for detection of brightness differences on the inspected components
The trevista algorithm locates and classifies defects quickly, reliably and free of interference

CVS trevista CAM variants

CVS trevista CAM-iNspect Express
Enables rapid deployment of inspection projects without great image processing experience. It features iNspect Express, a vision application software specifically designed to simplify the design and deployment of automated inspection on the factory floor. iNspect offers new and experienced users alike a practical tool delivering uncompromised functionality that can be readily applied to a wide range of manufacturing tasks.
CVS trevista CAM-SHERLOCK
Using Sherlock, an advanced machine vision software interface that can be applied to a wide variety of automated inspection applications. It offers maximum design flexibility and provides a rich suite of proven tools and capabilities.

Specifications

System

Lighting, control unit, trevista algorithm, camera, lens and software
Dimensions: 160 x 160 x 220 mm
Resolution : 2048 x 2048 Pixel
Plug & Play

Optical setup

Field of view typically: 35 mm diameter
Working distance typically: 20 mm

Intelligent camera

ADLINK NEON
CMOSIS CMV4000
Intel Atom Quad Core, 4 GB RAM, 32 GB SSD
Windows 7 embedded
Digital I/O, Ethernet, USB, VGA

Optics

Standard lens RICOH f = 35 mm

Lighting

Structured diffuse Dome light
Temperature control
Control unit
Timing image acquisition sequence
Modes: hardware-trigger / software-trigger
4 digital inputs, 3 digital outputs

Examples with CVS trevista CAM

Example A: Euro coin
The coin example demonstrates how CVS trevista CAM works: The slope images in x and y direction detect shape deviations in a specific orientation. The curvature image is invariant in orientation, and provides additional topographic information that can be used to distinguish between elevations and depressions. The texture image evaluates the brightness characteristics of the surface, allowing defects such as discoloration and rust to be clearly identified. These partial images are combined to give the final result image.

CVS trevistaCAM example coin