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The performance of image classification methodsheavily relies on the high-quality annotations, which are noteasily affordable, particularly for medical data. To alleviate thislimitation, in this study, we propose a weakly supervised imageclassification method based on combination of hand-craftedfeatures. We hypothesize that integration of these hand-craftedfeatures alongside Long short-term memory (LSTM) classifiercan reduce the adverse effects of weak labels in classificationaccuracy. Our proposed algorithm is based on selecting theappropriate domain representations of the data in Wavelet andDiscrete Cosine Transform (DCT) domains. This informationis then fed into LSTM network to account for the sequentialnature of the data. The proposed efficient, low dimensionalfeatures exploit the power of shallow deep learning modelsto achieve higher performance with lower computational cost.In order to show efficacy of the proposed strategy, we haveexperimented classification of brain tumor grades and achievedthe state of the art performance with the resolution of 256 x 256. We also conducted a comprehensive set of experiments toanalyze the effect of each component on the performance.
Cancer is a complex disease that provides various types of information depending on the scale of observation. While most tumor diagnostics are performed by observing histopathological slides, radiology images should yield additional knowledge towards
According to the World Health Organization, cancer is the second leading cause of death worldwide, responsible for over 9.5 million deaths in 2018 alone. Brain tumors count for one out of every four cancer deaths. Accurate and timely diagnosis of bra
Brain tumor segmentation plays an essential role in medical image analysis. In recent studies, deep convolution neural networks (DCNNs) are extremely powerful to tackle tumor segmentation tasks. We propose in this paper a novel training method that e
Brain tumor segmentation is a critical task for patients disease management. In order to automate and standardize this task, we trained multiple U-net like neural networks, mainly with deep supervision and stochastic weight averaging, on the Multimod
Brain tumor is one of the leading causes of cancer-related death globally among children and adults. Precise classification of brain tumor grade (low-grade and high-grade glioma) at early stage plays a key role in successful prognosis and treatment p