Search Results for author: Vivek Gopalakrishnan

Found 5 papers, 5 papers with code

Differentiable Voxel-based X-ray Rendering Improves Sparse-View 3D CBCT Reconstruction

1 code implementation28 Nov 2024 Mohammadhossein Momeni, Vivek Gopalakrishnan, Neel Dey, Polina Golland, Sarah Frisken

We present DiffVox, a self-supervised framework for Cone-Beam Computed Tomography (CBCT) reconstruction by directly optimizing a voxelgrid representation using physics-based differentiable X-ray rendering.

3D Reconstruction Novel View Synthesis

Grad-CAMO: Learning Interpretable Single-Cell Morphological Profiles from 3D Cell Painting Images

1 code implementation26 Mar 2024 Vivek Gopalakrishnan, Jingzhe Ma, Zhiyong Xie

Despite their black-box nature, deep learning models are extensively used in image-based drug discovery to extract feature vectors from single cells in microscopy images.

Drug Discovery Representation Learning

Intraoperative 2D/3D Image Registration via Differentiable X-ray Rendering

3 code implementations CVPR 2024 Vivek Gopalakrishnan, Neel Dey, Polina Golland

Preoperatively, a CNN is trained to regress the pose of a randomly oriented synthetic X-ray rendered from the preoperative CT.

Image Registration

Fast Auto-Differentiable Digitally Reconstructed Radiographs for Solving Inverse Problems in Intraoperative Imaging

2 code implementations26 Aug 2022 Vivek Gopalakrishnan, Polina Golland

To make DRRs interoperable with gradient-based optimization and deep learning frameworks, we have reformulated Siddon's method, the most popular ray-tracing algorithm used in DRR generation, as a series of vectorized tensor operations.

3D Reconstruction

Multiscale Comparative Connectomics

1 code implementation30 Nov 2020 Vivek Gopalakrishnan, Jaewon Chung, Eric Bridgeford, Benjamin D. Pedigo, Jesús Arroyo, Lucy Upchurch, G. Allan Johnson, Nian Wang, Youngser Park, Carey E. Priebe, Joshua T. Vogelstein

The connectome, a map of the structural and/or functional connections in the brain, provides a complex representation of the neurobiological phenotypes on which it supervenes.

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