1 code implementation • 9 Aug 2023 • Sriprabha Ramanarayanan, Mohammad Al Fahim, Rahul G. S., Amrit Kumar Jethi, Keerthi Ram, Mohanasankar Sivaprakasam
Experiments reveal that our approach 1) adapts on the fly to various unseen configurations up to 32 coils when trained on lower numbers (i. e. 7 to 11) of randomly varying coils, and to 120 deviated unseen configurations when trained on 18 configurations in a single model, 2) matches the performance of coil configuration-specific models, and 3) outperforms configuration-invariant models with improvement margins of around 1 dB / 0. 03 and 0. 3 dB / 0. 02 in PSNR / SSIM for knee and brain data.
no code implementations • 9 Aug 2023 • Sneha Sree C, Mohammad Al Fahim, Keerthi Ram, Mohanasankar Sivaprakasam
We propose a graph neural network-based transformer based on the Nodeformer architecture to measure and classify the segmentation errors at any point.
1 code implementation • 8 Aug 2023 • Rahul G. S., Sriprabha Ramnarayanan, Mohammad Al Fahim, Keerthi Ram, Preejith S. P, Mohanasankar Sivaprakasam
The self-attention mechanism of the transformer enables transformers to capture long-range dependencies in the images, which might be desirable for accelerated MRI image reconstruction as the effect of undersampling is non-local in the image domain.
no code implementations • 15 Jul 2023 • Pralaypati Ta, Bhumika Gupta, Arihant Jain, Sneha Sree C, Arunima Sarkar, Keerthi Ram, Mohanasankar Sivaprakasam
Clinical Practice Guidelines (CPGs) for cancer diseases evolve rapidly due to new evidence generated by active research.
1 code implementation • 13 Jul 2023 • Sriprabha Ramanarayanan, Arun Palla, Keerthi Ram, Mohanasankar Sivaprakasam
The hypernetworks and the reconstruction network in the GBML setting provide discriminative mode-specific features and low-level image features, respectively.
no code implementations • 13 Apr 2023 • Arun Palla, Sriprabha Ramanarayanan, Keerthi Ram, Mohanasankar Sivaprakasam
Conventional deep learning methods deal with removing a specific type of artifact, leading to separately trained models for each artifact type that lack the shared knowledge generalizable across artifacts.
1 code implementation • 11 Apr 2023 • Matcha Naga Gayathri, Sriprabha Ramanarayanan, Mohammad Al Fahim, Rahul G S, Keerthi Ram, Mohanasankar Sivaprakasam
We propose SFT-KD-Recon, a student-friendly teacher training approach along with the student as a prior step to KD to make the teacher aware of the structure and capacity of the student and enable aligning the representations of the teacher with the student.
1 code implementation • 28 Nov 2022 • Ayantika Das, Arun Palla, Keerthi Ram, Mohanasankar Sivaprakasam
Anomaly detection in MRI is of high clinical value in imaging and diagnosis.
no code implementations • 25 Jul 2022 • Nicky Nirlipta Sahoo, Balamurali Murugesan, Ayantika Das, Srinivasa Karthik, Keerthi Ram, Steffen Leonhardt, Jayaraj Joseph, Mohanasankar Sivaprakasam
Preterm babies in the Neonatal Intensive Care Unit (NICU) have to undergo continuous monitoring of their cardiac health.
no code implementations • 5 Jul 2022 • Balamurali Murugesan, Sriprabha Ramanarayanan, Sricharan Vijayarangan, Keerthi Ram, Naranamangalam R Jagannathan, Mohanasankar Sivaprakasam
In our work, we develop deep networks to further improve the quantitative and the perceptual quality of reconstruction.
no code implementations • 21 Feb 2022 • Jaya Chandra Raju, Kompella Subha Gayatri, Keerthi Ram, Rajeswaran Rangasami, Rajoo Ramachandran, Mohansankar Sivaprakasam
MRI entails a great amount of cost, time and effort for the generation of all the modalities that are recommended for efficient diagnosis and treatment planning.
1 code implementation • MIDL 2019 • Sriprabha Ramanarayanan, Balamurali Murugesan, Keerthi Ram, Mohanasankar Sivaprakasam
We propose a multiple acquisition context based network, called MAC-ReconNet for MRI reconstruction, flexible to multiple acquisition contexts and generalizable to unseen contexts for applicability in real scenarios.
no code implementations • 3 Sep 2021 • Supriti Mulay, Keerthi Ram, Balamurali Murugesan, Mohanasankar Sivaprakasam
A deep learning-based edge adaptive instance normalization style transfer technique for segmenting the coronary arteries, is presented in this paper.
no code implementations • 3 Sep 2021 • Supriti Mulay, Keerthi Ram, Mohanasankar Sivaprakasam, Anand Vinekar
The system was tested on 45 images and reached detection accuracy of 0. 88, showing that deep learning detection with pre-processing by image normalization allows robust detection of ROP in early stages.
1 code implementation • 10 Feb 2021 • Madhu Mithra K K, Sriprabha Ramanarayanan, Keerthi Ram, Mohanasankar Sivaprakasam
Magnetic Resonance Imaging (MRI) is a valuable clinical diagnostic modality for spine pathologies with excellent characterization for infection, tumor, degenerations, fractures and herniations.
no code implementations • 15 Jul 2020 • Sharath M. Shankaranarayana, Keerthi Ram, Kaushik Mitra, Mohanasankar Sivaprakasam
One of the important parameters for the assessment of glaucoma is optic nerve head (ONH) evaluation, which usually involves depth estimation and subsequent optic disc and cup boundary extraction.
1 code implementation • MIDL 2019 • Balamurali Murugesan, Sricharan Vijayarangan, Kaushik Sarveswaran, Keerthi Ram, Mohanasankar Sivaprakasam
In our work, we propose a knowledge distillation (KD) framework for the image to image problems in the MRI workflow in order to develop compact, low-parameter models without a significant drop in performance.
no code implementations • 20 Mar 2020 • Dingkang Wang, Lucas Magee, Bing-Xing Huo, Samik Banerjee, Xu Li, Jaikishan Jayakumar, Meng Kuan Lin, Keerthi Ram, Suyi Wang, Yusu Wang, Partha P. Mitra
Neuroscientific data analysis has traditionally relied on linear algebra and stochastic process theory.
1 code implementation • 8 Jan 2020 • Balamurali Murugesan, Kaushik Sarveswaran, Vijaya Raghavan S, Sharath M. Shankaranarayana, Keerthi Ram, Mohanasankar Sivaprakasam
Foreground-background class imbalance is a common occurrence in medical images, and U-Net has difficulty in handling class imbalance because of its cross entropy (CE) objective function.
1 code implementation • 8 Jan 2020 • Sriprabha Ramanarayanan, Balamurali Murugesan, Keerthi Ram, Mohanasankar Sivaprakasam
Among them, U-Net has shown to be the baseline architecture for MR image reconstruction.
1 code implementation • 25 Aug 2019 • Balamurali Murugesan, Vijaya Raghavan S, Kaushik Sarveswaran, Keerthi Ram, Mohanasankar Sivaprakasam
Our experiments show that the concept of a context discriminator can be extended to existing GAN based reconstruction models to offer better performance.
1 code implementation • 14 Aug 2019 • Balamurali Murugesan, Kaushik Sarveswaran, Sharath M. Shankaranarayana, Keerthi Ram, Jayaraj Joseph, Mohanasankar Sivaprakasam
For the task of medical image segmentation, fully convolutional network (FCN) based architectures have been extensively used with various modifications.
no code implementations • 29 Mar 2019 • Vignesh Ravichandran, Balamurali Murugesan, Sharath M. Shankaranarayana, Keerthi Ram, Preejith S. P, Jayaraj Joseph, Mohanasankar Sivaprakasam
We further evaluate the signal denoising using Mean Square Error(MSE) and Cross Correlation between model predictions and ground truth.
Ranked #1 on
ECG Denoising
on UnoViS_auto2012
no code implementations • 12 Feb 2019 • Vignesh Ravichandran, Balamurali Murugesan, Vaishali Balakarthikeyan, Sharath M. Shankaranarayana, Keerthi Ram, Preejith S. P, Jayaraj Joseph, Mohanasankar Sivaprakasam
Recently, due to the widespread adoption of wearable smartwatches with in-built Photoplethysmogram (PPG) sensor, it is being considered as a viable candidate for continuous and unobtrusive respiration monitoring.
1 code implementation • 11 Feb 2019 • Balamurali Murugesan, Kaushik Sarveswaran, Sharath M. Shankaranarayana, Keerthi Ram, Mohanasankar Sivaprakasam
We also propose a new joint loss function for the proposed architecture.
no code implementations • 4 Feb 2019 • Sharath M. Shankaranarayana, Keerthi Ram, Kaushik Mitra, Mohanasankar Sivaprakasam
Glaucoma is a serious ocular disorder for which the screening and diagnosis are carried out by the examination of the optic nerve head (ONH).
no code implementations • 25 Jan 2019 • Balamurali Murugesan, Kaushik Sarveswaran, Sharath M. Shankaranarayana, Keerthi Ram, Mohanasankar Sivaprakasam
We modify the decoder part of the FCN to exploit class information and the structural information as well.