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hemangshah

16 karma · joined October 1, 2013

A full-time freelancer specializing in computer vision and machine learning. I've co-founded a tech startup and have worked on various interesting projects in my 9 years in this profession.

Feel free to connect with me at: http://www.linkedin.com/in/link2hemangshah

submissionscomments
hemangshah··on Restoration of defocused and blurred images (2012)
I've used Marziliano's[1] blur metric to reject images with motion blur recently. It is very fast and quite accurate in distinguishing blurred and non-blurred images.

[1] http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.7.9...

hemangshah··on Ask HN: Freelancer? Seeking freelancer? (October 2015)
SEEKING WORK - Bangalore, India, Remote. Travel possible.

Computer vision / image processing / machine learning / algorithms.

More than 10 yrs of experience working on software research and development. Co-founded a tech startup, 2+yrs as a full-time freelancer.

Please see my linkedin profile for more details: http://www.linkedin.com/in/link2hemangshah email: hemang.j.shah@gmail.com, github: https://github.com/HemangShah1

Proficient in C/C++/Java/OpenCV, Others: Matlab, Android, R

hemangshah··on Ask HN: Freelancer? Seeking freelancer? (February 2015)
SEEKING WORK - Bangalore, India, Remote

Computer vision / image processing / machine learning / algorithms.

More than 9 yrs of experience working on software research and development. Co-founded a tech startup, 2+yrs as a full-time freelancer.

Please see my linkedin profile for more details: http://www.linkedin.com/in/link2hemangshah

email: hemang.j.shah@gmail.com,

github: https://github.com/HemangShah1

Proficient in C/C++/Java/OpenCV, Others: Matlab, Android, R

hemangshah··on Real-time Drone object tracking using Python and OpenCV
Christian, please also be aware that some of the techniques do not incorporate changes in scale of the tracked object. If you are working with aerial footage then this might be an important consideration. I've recently worked on a similar problem, so you need any help, please feel free to email me (email address is given in my profile)
hemangshah··on Real-time Drone object tracking using Python and OpenCV
There are visual tracking techniques that are not only more stable and robust that meanshift, but can also handle occlusions, adapt to changes in appearance models, etc. Have a look at the VOT challenge[1] for the state-of-art in visual tracking.

[1] http://www.votchallenge.net/vot2014/download/vot_2014_paper....

hemangshah··on Ask HN: Freelancer? Seeking freelancer? (January 2015)
SEEKING WORK - Bangalore, India, Remote Computer vision / image processing / machine learning / algorithms.

More than 9yrs of experience working on software research and development. Co-founded a tech startup, 2+yrs as a full-time freelancer.

Computer vision topics I've worked on: background subtraction, binary segmentation, facial expression transfer using active appearance models, object recognition, image restoration, projective geometry correction, object tracking, video stabilization, graphs cuts, face authentication, OCR pre-processing, gesture recognition, etc.

color: color quantization, color constancy (shadow removal), reduction to dominant color palette, illumination invariant color distance, color blending, color correction (gamut transform),

Learning topics: Classification: linear regression, LDA, SVM. Clustering: KMeans, hierarchical kmeans, nearest neighbour. Probabilitic analysis: naive bayes. Recommender systems.

Performance optimization: Speed up of background subtraction algorithms by writing optimized C code and SSE intrinsics.

Please see my linkedin profile for more details: http://www.linkedin.com/in/link2hemangshah email: hemang.j.shah@gmail.com, skype: hemang.j.shah, github: https://github.com/HemangShah1 Proficient in C/C++/Java/OpenCV, Others: Matlab, Android, R

hemangshah··on Ask HN: Freelancer? Seeking freelancer? (December 2014)
SEEKING WORK - Bangalore, India, Remote Computer vision / image processing / machine learning / algorithms.

More than 9yrs of experience working on software research and development. Co-founded a tech startup, 2+yrs as a full-time freelancer.

Computer vision topics I've worked on: background subtraction, binary segmentation, facial expression transfer using active appearance models, object recognition, image restoration, projective geometry correction, object tracking, video stabilization, graphs cuts, face authentication, OCR pre-processing, gesture recognition, etc. color: color quantization, color constancy (shadow removal), reduction to dominant color palette, illumination invariant color distance, color blending, color correction (gamut transform), Learning topics: Classification: linear regression, LDA, SVM. Clustering: KMeans, hierarchical kmeans, nearest neighbour. Probabilitic analysis: naive bayes. Recommender systems. Performance optimization: Speed up of background subtraction algorithms by writing optimized C code and SSE intrinsics.

Please see my linkedin profile for more details: http://www.linkedin.com/in/link2hemangshah email: hemang.j.shah@gmail.com, skype: hemang.j.shah, github: https://github.com/HemangShah1

Proficient in C/C++/Java/OpenCV, Others: Matlab, Android, R

hemangshah··on Ask HN: Freelancer? Seeking freelancer? (November 2014)
SEEKING WORK - Bangalore, India, Remote

Computer vision / image processing / machine learning / algorithms.

More than 9yrs of experience working on software research and development. Co-founded a tech startup, 2+yrs as a full-time freelancer.

Computer vision topics I've worked on: background subtraction, binary segmentation, facial expression transfer using active appearance models, object recognition, image restoration, projective geometry correction, object tracking, video stabilization, graphs cuts, face authentication, OCR pre-processing, gesture recognition, etc.

color: color quantization, color constancy (shadow removal), reduction to dominant color palette, illumination invariant color distance, color blending, color correction (gamut transform),

Learning topics: Classification: linear regression, LDA, SVM.

Clustering: KMeans, hierarchical kmeans, nearest neighbour.

Probabilitic analysis: naive bayes. Recommender systems.

Performance optimization: Speed up of background subtraction algorithms by writing optimized C code and SSE intrinsics.

Please see my linkedin profile for more details: http://www.linkedin.com/in/link2hemangshah

email: hemang.j.shah@gmail.com, skype: hemang.j.shah, github: https://github.com/HemangShah1

Proficient in C/C++/Java/OpenCV, Others: Matlab, Android, R

hemangshah··on Show HN: Using computer vision to detect birds in parks
Looks like it does quite well (on good images with closeup of a single bird).

Some fails:

http://i1-news.softpedia-static.com/images/news2/Washington-...

http://fc04.deviantart.net/fs71/i/2012/181/1/e/eyes_on_a_bir...

A couple that barely made it:

http://www.jlvaillant.com/Animals/Birds/Egrets-Herons/i-CDVT...

http://www.nps.gov/calo/naturescience/images/IMG_1399_edited...

On the whole, its very impressive though!

hemangshah··on Ask HN: Freelancer? Seeking freelancer? (October 2014)
SEEKING WORK - Bangalore, India, Remote

Computer vision / image processing / machine learning / algorithms.

More than 9yrs of experience working on software research and development. Co-founded a tech startup, ~2yrs as a full-time freelancer.

Computer vision topics I've worked on: background subtraction, binary segmentation, facial expression transfer using active appearance models, object recognition, restoration, projective geometry correction, object tracking, video stabilization, graphs cuts, face authentication, OCR pre-processing, gesture recognition, etc.

color: color quantization, color constancy (shadow removal), reduction to dominant color palette, illumination invariant color distance, color blending, color correction (gamut transform),

Learning topics: Classification: linear regression, LDA, SVM. Clustering: KMeans, hierarchical kmeans, nearest neighbour. Probabilitic analysis: naive bayes. Recommender systems. Performance optimization: Speed up of background subtraction algorithms by writing optimized C code and SSE intrinsics.

Please see my linkedin profile for more details: http://www.linkedin.com/in/link2hemangshah email: hemang.j.shah@gmail.com, skype: hemang.j.shah

Proficient in C/C++/Java/OpenCV, Others: Matlab, Android

hemangshah··on Ask HN: Who wants to be hired? (August 2014)
Location: Bangalore, India Remote: Yes

Willing to relocate: Yes

Technologies: computer vision, image processing, machine learning, general algorithms. Mainly C/C++, can also work with Matlab.

Resume: http://www.linkedin.com/in/link2hemangshah

Email: hemang.j.shah@gmail.com

More than 9yrs of experience working on software research and development. Have co-founded a tech startup. Working as freelancers for a couple of years, but can take up full-time work either as freelancer or employee.

Looking for an opportunities where I get to work on problems bigger than what I can take up if I were on my own. Do connect with me on linkedin, or by email.

hemangshah··on Ask HN: Freelancer? Seeking freelancer? (August 2014)
SEEKING WORK - Bangalore, India, Remote

Computer vision / image processing / machine learning / algorithms.

More than 9yrs of experience working on software research and development. Co-founded a tech startup, ~2yrs as a full-time freelancer.

Computer vision topics I've worked on: background subtraction, binary segmentation, facial expression transfer using active appearance models, object recognition, restoration, projective geometry correction, object tracking, video stabilization, graphs cuts, face authentication, OCR pre-processing, gesture recognition, etc.

color: color quantization, color constancy (shadow removal), reduction to dominant color palette, illumination invariant color distance, color blending, color correction (gamut transform),

Learning topics: Classification: linear regression, LDA, SVM. Clustering: KMeans, hierarchical kmeans, nearest neighbour. Probabilitic analysis: naive bayes. Recommender systems.

Performance optimization: Speed up of background subtraction algorithms by writing optimized C code and SSE intrinsics.

Please see my linkedin profile for more details: http://www.linkedin.com/in/link2hemangshah

email: hemang.j.shah@gmail.com, skype: hemang.j.shah

Proficient in C/C++/Java/OpenCV,

Others: Matlab, Android

hemangshah··on Ask HN: Freelancer? Seeking freelancer? (February 2014)
SEEKING WORK in computer vision, machine learning. Remote or local to Bangalore, India.

8+ years experience, ex-cofounder of tech startup. Freelancing for more than a year.

Topics I've worked on: image binary segmentation, human body pose estimation, face tracking using AAM and warping, color blending, projective geometry, augmented reality, face authentication, change detection, OCR pre-processing, object detection, tracking and recognition, general classifications, etc.

Feel free to connect with me at: linkedin: www.linkedin.com/in/link2hemangshah email: hemang.j.shah at 'google's popular email service'

- Hemang Shah

hemangshah··on Ask HN: Freelancer? Seeking freelancer? (December 2013)
SEEKING WORK in computer vision & machine learning. Remote or local to Bangalore, India.

I've co-founded a startup, and have worked on various interesting & complex projects for more than 8yrs now. I love solving hard technical problems and on the other side, I can also contribute towards general understanding, viability and road maps of a business solution or towards solving a market requirement.

Feel free to connect with me at www.linkedin.com/in/link2hemangshah and contact me at hemang.j.shah at 'google's popular email service' dot com

- hemang shah

hemangshah··on Ask HN: Freelancer? Seeking freelancer? (October 2013)
SEEKING WORK in computer vision & machine learning. Remote or local to Bangalore, India.

I've co-founded a startup, and have worked on various interesting & complex projects for more than 8yrs now. I love solving hard technical problems and on the other side, I can also contribute towards general understanding, viability and road maps of a business solution or towards solving a market requirement.

Feel free to connect with me at www.linkedin.com/in/link2hemangshah and contact me at hemang.j.shah at 'google's popular email service' dot com

- hemang shah