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Ashwith Rego

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Company/University
Cortina Systems
Lat/Long
13.061183, 77.67486

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Professional Interests:
Image and Signal processing, Embedded Systems

 

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Comments and Ratings by Ashwith View all
Updated File Comments Rating
01 Apr 2010 Active Shape Model (ASM) and Active Appearance Model (AAM) Cootes 2D/3D Active Shape & Appearance Model for automatic image object segmentation and recognition Author: Dirk-Jan Kroon

In the function AAM_align_data.m, you have chosen the base to always be the first shape. According to Procrustes analysis, isn't the base supposed to be the mean of the current set of aligned shapes? Am I missing something in your code or are you using some sort of modified Procrustes analysis which aligns all shapes to the first shape? If it is the latter how much difference would it make in the result?

25 Mar 2010 Active Shape Model (ASM) and Active Appearance Model (AAM) Cootes 2D/3D Active Shape & Appearance Model for automatic image object segmentation and recognition Author: Dirk-Jan Kroon

I figured it out. Took me some time to realize what exactly you meant. Thanks a ton again! :-)

25 Mar 2010 Active Shape Model (ASM) and Active Appearance Model (AAM) Cootes 2D/3D Active Shape & Appearance Model for automatic image object segmentation and recognition Author: Dirk-Jan Kroon

Thanks for your reply.
How do you convert between screen coordinates and image coordinates?

25 Mar 2010 Active Shape Model (ASM) and Active Appearance Model (AAM) Cootes 2D/3D Active Shape & Appearance Model for automatic image object segmentation and recognition Author: Dirk-Jan Kroon

Could you tell me how one selects the landmark points. And how do you set the coordinates of these points? Till now I was under the impression that the coordinates are the row and column indexes of the pixel in the image matrix. I saw x and y having values like 216.8761?
Secondly, for the database of training images, what are vector t and matrix I for? I understand x and y give the coordinates of each point. What are t and I?
This is my first project in image processing so I really have no clue.
Thanks in advance!

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