This document summarizes a research paper on using deep learning techniques to detect brain tumors in MRI images. The researchers used a dataset of 253 MRI images, with 155 containing tumors and 98 normal images. They applied convolutional neural network models like VGG-16, ResNet-50 and Inception v3 to classify images as either containing a tumor or being normal. Edge detection was used as a pre-processing step before classification. The models were trained on part of the dataset and validated using cross-validation, with final evaluation on the test set. Results showed the deep learning techniques provided accurate and reliable tumor detection, outperforming manual detection by doctors.