Projects on Ahmed Tahseen Minhaz

Lung and Heart segmentation from Chest X-ray

Thu, 13 Apr 2017 00:00:00 +0000

The model was trained on JSRT Chest X-ray dataset in which heart and lung boundary are annotated by trained doctors. The dataset is relatively small with only 193 images, however satisfactory result is obtained in the dataset. A sample test data example is provided in the figure below.

The first image is a sample image from the JSRT dataset. The second image is the ground truth, where the third image is the segmented result. A problem, that I ran into is the model seems to be overfitted in the training dataset, therefore inference obtained from other datasets are not that great. CXRs of different contrast does not perform well in the model. To counter this issue, data augmentation was performed at random crop level and the model was trained on synthetic contrast-corrected images. Results improve when the model is trained with images of different contrast.

Implementation of RefineNet by Guosheng: Here More about PASCAL VOC Challenge can be found here.

Classification of diseases from chest x-ray using deep convolutional neural network

Wed, 27 Apr 2016 00:00:00 +0000

We are currently working on disease classification from chest x-ray images. The classification results will be updated soon.

Lung and Heart segmentation from Chest X-ray using SIFTflow Algorithm

Wed, 27 Apr 2016 00:00:00 +0000

In this project, I reproduced the results of a recently published paper on Cardiomegaly detection using SIFTFlow by Candemir et. al. The codes and results are not yet made public as they are a part of an ongoing study.

Till then, you can go through the paper Candemir et. al here. You can also check out the original paper on SIFT by David Lowe from here and the paper on SIFTFlow by Ce Liu et. al here

Sleep Apnea Detection from EEG Signal Analysis

Wed, 27 Apr 2016 00:00:00 +0000

The main objective was to detect apnea frames in EEG Signal using frequency domain properties. You can get an overall idea about my undergraduate research if you go through the proceedings here and here