Search Results for author: Animesh Karnewar

Found 8 papers, 1 papers with code

GOEnFusion: Gradient Origin Encodings for 3D Forward Diffusion Models

no code implementations14 Dec 2023 Animesh Karnewar, Andrea Vedaldi, Niloy J. Mitra, David Novotny

The recently introduced Forward-Diffusion method allows to train a 3D diffusion model using only 2D images for supervision.

HoloFusion: Towards Photo-realistic 3D Generative Modeling

no code implementations ICCV 2023 Animesh Karnewar, Niloy J. Mitra, Andrea Vedaldi, David Novotny

Diffusion-based image generators can now produce high-quality and diverse samples, but their success has yet to fully translate to 3D generation: existing diffusion methods can either generate low-resolution but 3D consistent outputs, or detailed 2D views of 3D objects but with potential structural defects and lacking view consistency or realism.

3D Generation Super-Resolution

HoloDiffusion: Training a 3D Diffusion Model using 2D Images

no code implementations CVPR 2023 Animesh Karnewar, Andrea Vedaldi, David Novotny, Niloy Mitra

We show that our diffusion models are scalable, train robustly, and are competitive in terms of sample quality and fidelity to existing approaches for 3D generative modeling.

3inGAN: Learning a 3D Generative Model from Images of a Self-similar Scene

no code implementations27 Nov 2022 Animesh Karnewar, Oliver Wang, Tobias Ritschel, Niloy Mitra

We introduce 3inGAN, an unconditional 3D generative model trained from 2D images of a single self-similar 3D scene.

Generative Adversarial Network

ReLU Fields: The Little Non-linearity That Could

no code implementations22 May 2022 Animesh Karnewar, Tobias Ritschel, Oliver Wang, Niloy J. Mitra

Although the MLPs are able to represent complex scenes with unprecedented quality and memory footprint, this expressive power of the MLPs, however, comes at the cost of long training and inference times.

RGBD-Net: Predicting color and depth images for novel views synthesis

no code implementations29 Nov 2020 Phong Nguyen, Animesh Karnewar, Lam Huynh, Esa Rahtu, Jiri Matas, Janne Heikkila

We propose a new cascaded architecture for novel view synthesis, called RGBD-Net, which consists of two core components: a hierarchical depth regression network and a depth-aware generator network.

Novel View Synthesis regression

MSG-GAN: Multi-Scale Gradients for Generative Adversarial Networks

5 code implementations CVPR 2020 Animesh Karnewar, Oliver Wang

While Generative Adversarial Networks (GANs) have seen huge successes in image synthesis tasks, they are notoriously difficult to adapt to different datasets, in part due to instability during training and sensitivity to hyperparameters.

Generative Adversarial Network Image Generation

AANN: Absolute Artificial Neural Network

no code implementations ICLR 2018 Animesh Karnewar

This research paper describes a simplistic architecture named as AANN: Absolute Artificial Neural Network, which can be used to create highly interpretable representations of the input data.

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