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Area Scan Cameras
Line Scan Cameras


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Area Scan Cameras

The term 'area scan' refers to the camera sensor covering an area where sensing cells are replicated to produce a matrix of cells over a certain number of rows and columns forming a rectangular array of pixels.

This schematic shows the basic layout of the IVIS Inspection System.

A high resolution digital camera (s), to capture the specula information

A light source to generate the specula reference

An encoder to track the position of the object

A computer and display to process and configure the data

A rejection indication or actuator

Line Scan Cameras

A line scan camera is very similar to a flat bed scanner, it is one line, or row, in a raster scanning pattern. Lines scans are important in representations of image data, because many image file formats have special rules, for data at the end of a scan line.

Area and Line sensing system can be configured too have better speed and resolution than the human visual capabilities.

Line scan cameras are installed in many of processing machines in precision, glass, film, food and medical industries as well as electronic industry.

Line scan cameras are installed in many of manufacturing process too utilize its dimension measuring, position inspecting capabilities.

Scan camera consists of a CCD (Charge-Coupled Device) element, lens & trigger control circuit. Image of objects created on CCD element via lens and quantity of light is converted to video pulse signal and then is an output.

3D Scanning

A 3D scanner is a device that analyzes an object or environment to collect data on its shape and possibly its appearance (i.e. colour). The collected data can then be used to construct digital,three dimensional modelsuseful for a wide variety of industries.

We use non contact active scanners which use some kind of radiation or light  to detect its reflection in order to detect an object or environment. Possible types of emissions are used which include light, ultrasound or x-ray.

The triangulation 3D laser scanner is also an active scanner that uses laser light to probe the environment. The triangulation laser shines a laser on to the subject and uses a camera to look for the location of the laser dot. Depending on how far away the laser strikes a surface, the laser dot appears at different places in the camera’s field of view. This technique is called triangulation because the laser dot, the camera and the laser emitter form a triangle. The length of one side of the triangle, the distance between the camera and the laser emitter is known.

The advantage 3D scanners is its speed. Instead of scanning one point at a time, 3D scanners scan multiple points or the entire field of view at once. This reduces or eliminates the problem of distortion from motion. Some existing systems are capable of scanning moving objects in real-time.

3D model scanning could benefit the design process if:

  • Increase effectiveness working with complex parts and shapes.

  • Help with design of products to accommodate someone else’s part.

  • If CAD models are outdated, a 3D scan will provide an updated version

  • Replacement of missing or older parts

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area scan

Area Scan

line scan

Line Scan

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