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Bhavik Gandhi

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11 Apr 2012 Point Pattern Matching Algorithm for Hand Gesture / American Sign Language (ASL) Recognition A demonstration of American Sign Language recognition by using a Point Pattern Matching Algorithm. Author: Caglar Arslan

Caglar Arslan

No problem.
For now I am going on with SIFT. Also, trying on ASIFT. Please let me know if you implement ASIFT would be greatly helpful.

Thanks & Regards.

10 Mar 2012 Point Pattern Matching Algorithm for Hand Gesture / American Sign Language (ASL) Recognition A demonstration of American Sign Language recognition by using a Point Pattern Matching Algorithm. Author: Caglar Arslan

Hi Caglar, I tried using demo_ASIFT.exe

It would be very helpful if you provide your implementation of this for Hand Gesture Recognition. Because in this .exe file all the parameters are calculated and matching is done withinin itself. There is no place where I can extract the features of the image and store it.
Also do we have to use Mk-Rod algorithm or ASIFT matching is enough ??

I am trying to break the C++ code and use it for storing the features of database images.

If you provide your implementation, I can take some ideas from it and make it work faster.

Thanks & Regards.

09 Mar 2012 Point Pattern Matching Algorithm for Hand Gesture / American Sign Language (ASL) Recognition A demonstration of American Sign Language recognition by using a Point Pattern Matching Algorithm. Author: Caglar Arslan

Thanks a lot Caglar for useful guidance.
We are trying to implement it on realtime so time is a great concern for us.

Yes we are pre-calculating all the SIFT parameters for all database images and storing it in a .mat file and fetching the same data at runtime.

Thanks for the ASIFT link. I'll try it and let you know the progress.

Thanks a lot
Regards.

09 Mar 2012 Point Pattern Matching Algorithm for Hand Gesture / American Sign Language (ASL) Recognition A demonstration of American Sign Language recognition by using a Point Pattern Matching Algorithm. Author: Caglar Arslan

Thanks Caglar for the guidance.

I am facing another problem, it would be great help if you guide me on this.

I am trying to compare all the 26 alphabets and also 10 digits 0-9
Sometimes the alphabet is correctly recognized but many times wrong or similar sign language is decoded giving wrong output result. Please guide me as what all changes are needed. I tried changing the Mk-Rod threshold and distratio of sift, but still I get erroneous result.
Please guide me , what parameters to change or any additional check required.

Thanks & Regards
Bhavik

07 Mar 2012 Point Pattern Matching Algorithm for Hand Gesture / American Sign Language (ASL) Recognition A demonstration of American Sign Language recognition by using a Point Pattern Matching Algorithm. Author: Caglar Arslan

Hi caglar,
Just another doubt.
Is it necessary to have all the images of same size in database ?
like for example in your database all the images are of size 400x300
also in the inputs the size is same.

In our database, we are having all images of different size only having it's region of interest with black background.
Will this cause any problem in matching ?

Thanks and Regards,
Bhavik

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