developerstation.org
DeveloperStation.ORG: March 2013
http://www.developerstation.org/2013_03_01_archive.html
Video Lectures and Talks. Saturday, March 9, 2013. Reading and Writing cv: Mat in OpenCV in C. In C api for OpenCV, you often come across writing and reading matrices as text files (analogous to saving .mat files in MATLAB/Octave). This is a simple way of doing it. You could even save multiple matrices in a single .xml/.yaml. However, I couldn't find ways to read more than 1 matrix which was written to file and being read using Python API. Posted by Rahul Kavi. Matrix types in using imshow and imwrite.
developerstation.org
DeveloperStation.ORG: simple Convolutional Neural Net based object recognition
http://www.developerstation.org/2016/03/simple-convolutional-neural-net-based.html
Video Lectures and Talks. Wednesday, March 9, 2016. Simple Convolutional Neural Net based object recognition. I made a simple object recognition module over the last weekend. I wrote a Theano. Based convolutional neural network. I wrote a simple OpenCV. Based image segmentation program. The output from the image segmentation program is passed to the Theano based Convolutional Neural Network. I used 10,000 images for training and 16,000 images for testing. Posted by Rahul Kavi. On the way to Virtual World.
developerstation.org
DeveloperStation.ORG: June 2013
http://www.developerstation.org/2013_06_01_archive.html
Video Lectures and Talks. Sunday, June 9, 2013. Logisitic Regression in OpenCV. I finished writing a Logistic Regression classifier in OpenCV. I've seen a lot of posts on the web asking for OpenCV's version of the same but its not available. Its easy to write your own logistic regression classifier. I separated out the cost function and gradient descent algorithm (Batch Gradient Descent). You can replace it with your own optimization algorithm. I posted it on my Github page. You can check it out:.
developerstation.org
DeveloperStation.ORG: March 2016
http://www.developerstation.org/2016_03_01_archive.html
Video Lectures and Talks. Sunday, March 13, 2016. Simple Autoencoder on MNIST dataset. So, I had fun with Theano and trained an Autoencoder on a MNIST dataset. More about Autoencoders is available here. More variants of Autoencoders exist (Sparse, Contractive, etc.) are available with different constraints on the hidden layer representation. I trained an vanilla Autoencoder for 100 epochs with 16 mini batch size and learning rate of 0.01. Posted by Rahul Kavi. Wednesday, March 9, 2016. The output from th...
developerstation.org
DeveloperStation.ORG: About Me
http://www.developerstation.org/p/rahul-kavi-my-reserach-page.html
Video Lectures and Talks. I'm a grad student. I write on DeveloperStation. This blog) to keep a "dairy" of some sort to look-up for myself in the future and to help others in the process. I always like to keep a track of present trends in Technology, Programming. You can follow me on Google Plus. My research publications are listed on my Google Scholar page. Paulo Coelho: I have learned. My Amazon Wish List. Subscribe to: Posts (Atom). Fav Networking, Linux, Computer Vision Blogs.
developerstation.org
DeveloperStation.ORG: Simple Autoencoder on MNIST dataset
http://www.developerstation.org/2016/03/simple-autoencoder-on-mnist-dataset.html
Video Lectures and Talks. Sunday, March 13, 2016. Simple Autoencoder on MNIST dataset. So, I had fun with Theano and trained an Autoencoder on a MNIST dataset. More about Autoencoders is available here. More variants of Autoencoders exist (Sparse, Contractive, etc.) are available with different constraints on the hidden layer representation. I trained an vanilla Autoencoder for 100 epochs with 16 mini batch size and learning rate of 0.01. Posted by Rahul Kavi. Subscribe to: Post Comments (Atom).
developerstation.org
DeveloperStation.ORG: September 2014
http://www.developerstation.org/2014_09_01_archive.html
Video Lectures and Talks. Monday, September 8, 2014. Getting data from camera in Robot Operating System. I have used webcams in OpenCV before. However, I came across a situation where I had to stream the webcam data to a ROS (Robot Operating System) topic. There are bunch of ROS packages on ros.org website. However, when I did a. It gave me errors saying there was no such package found. So, I came across this deb package in Ubuntu. Once, I did the above installation all I had to do was. Then I could do a.
developerstation.org
DeveloperStation.ORG: February 2013
http://www.developerstation.org/2013_02_01_archive.html
Video Lectures and Talks. Friday, February 15, 2013. Logistic Regression in python. I wrote a Logistic Regression classisifier in Python using Numpy. You can checkout the source code for the Logistic Regression classifier here. Its a multi-class classifier. Written in Python (uses a one vs rest kind of classification strategy). It also works for 2 class data-sets. T to learn the parameters of the Logistic Regression. You can edit it to make it work with optimization module in Scipy. Posted by Rahul Kavi.
developerstation.org
DeveloperStation.ORG: December 2012
http://www.developerstation.org/2012_12_01_archive.html
Video Lectures and Talks. Sunday, December 23, 2012. Review: Mastering OpenCV with Practical Computer Vision Projects. I got hold of this new book titled " Mastering OpenCV with Practical Computer Vision Projects. I personally liked the part on Point Cloud Library and OpenCV. I liked the Chapter 9 where they discussed Kinect and OpenCV. This chapter was provided as a digital download (as a link). Before trying this book. Posted by Rahul Kavi. Monday, December 17, 2012. Neural Networks in Octave. Review: ...
