Machine Vision Systems – Mathematical Morphology For Shape Analysis
Posted by mechlook info on December 29th, 2011 10:19 PM | No Comment
Mathematical Morphology For Shape Analysis
Mathematical morphology is a method of image processing and analysis based on set theoretical descriptions of image transformations and measurements. These transformations employ the concept of a structuring element, a predefined shape which is employed as ...
Machine Vision Systems – Circular Scanning
Posted by mechlook info on December 28th, 2011 07:07 PM | No Comment
Circular Scanning
Circular scanning refers to a solid state device that is configured as a light sensitive discretely segmented annular ring. Fig.23.8 shows the difference
between matrix scanner, linear array (linear scanner) and circular scanner. Circular scanning devices are used for angular ...
Machine Vision Systems – Photogrammetry
Posted by mechlook info on December 28th, 2011 07:07 PM | No Comment
Photogrammetry
It is a dimensional measurement technique achieved through the use of photographic images. By precise two-dimensional optical measurement of a set of photographs, three-dimensional coordinates of points of interest can be extracted. It is the basis of all aerial surveying.
Machine Vision Systems – Industrial Computed Tomography (CT) for Evaluation of Internal Structures Of Large, Dense Parts
Posted by mechlook info on December 28th, 2011 07:06 PM | No Comment
Industrial Computed Tomography (CT) for Evaluation of Internal Structures Of Large, Dense Parts.
Computed tomography (CT), popularly called the "CAT scan" is replacing X-ray technology and ultrasonic technology since it provides accurate a nd highly flexible images of the internal structures ...
Machine Vision Systems – Grazing Incident Technique to Evaluate Surface Flatness
Posted by mechlook info on December 28th, 2011 07:06 PM | No Comment
Grazing Incident Technique to Evaluate Surface Flatness
Laser-based system using grazing incidence interferometry to view part surface topography has been developed. It is a menu-driven, microprocessor based system which can analyse over 65,000data points and compute flatness in less than 20 ...
Machine Vision Systems – Visual Inspection
Posted by mechlook info on December 28th, 2011 07:05 PM | No Comment
Visual Inspection
It is a non destructive technique used to detect and examine a variety of surface flaws and surface cracks. The visual inspection is aided by borescope (which illuminates and observes internal, closed or inaccessible areas), interference microscope (which measures ...
Machine Vision Systems – Laser Inspection
Posted by mechlook info on December 27th, 2011 10:49 PM | No Comment
Laser Inspection
Metrology lasers are low-power instruments. Most are helium-neon continuous-wave output lasers that emit visible or infrared light. He-Ne lasers produce light at a wave length of 6328 A° (0.6 μm) that is in phase, coherent, and a thousand times ...