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Machine Vision
the substitution of the human visual sense and judgment capabilities with a video camera and computer to perform an inspection task. It is the automatic acquisition and analysis of images to obtain desired data for controlling or evaluating a specific part or activity
Image Acquisition
Sensors
Optics
Lighting
Analysis
Components
Software
Algorithms
Integration and Applications
Results
Communications
Automation
What is the goal of the engineer in the machine vision to acquire a good image?
Create Contrast
What are the most common camera set ups?
PC based system
Hybrid
Smart camera system
What is the decimal value of white?
255
What is the value for black
0
What is the difference between a telescopic lens and a double gauss lens?
A telecentric lens causes the object to appear uniform in position because of collimated light. A guase allows all light and is
What are and draws all six of the ways light can react to an images. z
Draw the standard “W”
Draw a darkfield “W”
OCR
Optical character recognition- text reader
OCV
Optical Character Verifier- Text analyzer
Types of surfaces(Geometric Properties) an object can have
Diffuse uniform-
Diffuse Rough-
Specular smooth)- very reflective
specular finish-
amorphous
Bayer Filter
Green(1/2)
Red(1/4)
Blue(1/4)
If an object is Red, and we want to deemphasize the color, what should we do?
Use a red light filter and a red light
