Software Listing of Author : "Romeil Sandhu"
- Active Contours: A New Distribution Metric for Image Segmentation
- License: Freeware
- Price: 0.00


How can we characterize an image, and does the same characterization yield the same result? In this work, we study one possible characterization, distribution metrics. That is, we assume the desired region of interest has a different probability distribution from its corresponding background. Using this, we present a new distribution metric for image segmentation that arises as a result in prediction theory. Forming a natural geodesic, our metric quantifies 'distance' for two density functionals as the standard deviation of the difference between logarithms of those distributions. Using level set methods, we incorporate an energy model based on the metric into the Geometric Active Contour framework. We also demonstrate the algorithm on several challenging medical images, which further ensure the viability of the metric in the context...
- Publisher: Romeil Sandhu
- Date Released: 14-02-2013
- Download Size: 1608 KB
- Download
- Platform: Matlab, Scripts
- Convolutional Encoder/Decoder of Rate 1/N Codes
- License: Freeware
- Price: 0.00


In this project, we seek to minimize the gap-to-capacity (given by Shannon's theoretical limit) of a rate 1/3 code (also can be modified for 1/N). This is done via a convolutional encoder/decoder for varying memory elements as well for both soft and hard decoding scheme. We show that the gap-to-capacity can be minimized with respect to the suboptimal un-coded code word or a (3,1) repetition code. Although better schemes are available such as LDPC and turbo codes, we have chosen the convolutional code for its simplicity and generality. Our model of transmission is binary-input AWGN channel. Also, I attached my paper to demonstrate how the code can be easily modified for other rates and different varying element sizes. Provides detail overview of Convolution Coding scheme. For More Information: http://www.romeilsandhu.com
- Publisher: Romeil Sandhu
- Date Released: 26-05-2013
- Download Size: 492 KB
- Download
- Platform: Matlab, Scripts