Create your own Object Detector

Creating a custom object detector was a challenge, but not now. There are many approaches for handling object detection. Of all, Haarcascades and HOG+SVM are very popular and best known for their performance. Though Haarcascades which were introduced by Viola and Jones are good in achieving decent accuracy, HOG+SVM proved to outperform the Haarcascades implementation. Here in this post we are going to build a object detector using HOG+SVM model. The output from our detector is something similar as shown below.

out_1 Continue reading

Sudoku Solver – 1

I was very much excited to solve the Sudoku puzzles that appeared in daily newspapers during childhood. In fact it’s a lot of fun solving them and even we (my friends) challenge ourselves to solve them first. By then we don’t know programming and other stuff, so we were not aware of finding the solution with ease. But when I was learning Data Structures and Algorithms long back I got encountered with the famous Backtracking algorithm and yes, solving a sudoku puzzle is one among the challenges that can be solved easily using that algorithm. Continue reading

Optimize Neural nets

This post is quite smaller than previous ones as it just states the optimization techniques required to train a neural network. I thought of including a example but many resources are available free online and therefore it is not necessary to reinvent the wheel. So coming straight to the point, Optimization techniques are those which facilitate our model to converge faster and providing much more efficiency and makes our model more accurate. Continue reading