Shape Search III
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FH/FZ5 Processing Item Function Reference Manual
Shape Search III
This function registers a model of an image pattern based on its contour information and detect parts of inputted
images that most closely match the model. The correlation value indicating the degree of similarity,
measurement target position, and orientation can be output.
In shape search III, edge information is used as features, whereas in a normal search mode, color and texture
infor
m
ation are used.
It enables highly robust and fast detection robust to envir
o
nmental variations including shadings, reflections,
lightings, shape deformations, pose and noises.
Since state-of-the-art object dete
c
tion algorithm is exploited in shape search III, it can provides much more
reliable position and pose estimation with higher speed compared to shape search II. Furthermore, it has much
more parameter to tune to support a wider variety of applications.
Used in the Following Case
• Alignment mark detection and precise position estimation.
• Processing is different for color images and monochrome images. If the camera type, color camera, or monochrome
camera, was changed from a previous setup, a reset of some settings may be needed.
• When the measurement region is changed, the Position X and
Po
sition Y can differ. Be sure to check functionality
thoroughly before starting operation.
• Search processing basic concepts
Reference: "Appendixes Measurement Mechanism Search Processing
Mechanism" in the "Vision System FH/FZ5
Series User's Manual (Z365)"
Register as a model
Mark to determine position
Example) Search for LCD base position mark
Partial
Can also search in the following states:
Low contrast
High noise
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