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We present ONeRF, a method that automatically segments and reconstructs object instances in 3D from multi-view RGB images without any additional manual annotations. The segmented 3D objects are represented using separate Neural Radiance…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Shengnan Liang , Yichen Liu , Shangzhe Wu , Yu-Wing Tai , Chi-Keung Tang

Implicit neural representation is a recent approach to learn shape collections as zero level-sets of neural networks, where each shape is represented by a latent code. So far, the focus has been shape reconstruction, while shape…

Computer Vision and Pattern Recognition · Computer Science 2021-08-23 Matan Atzmon , David Novotny , Andrea Vedaldi , Yaron Lipman

Neural Radiance Fields (NeRF) recently emerged as a new paradigm for object representation from multi-view (MV) images. Yet, it cannot handle multi-scale (MS) images and camera pose estimation errors, which generally is the case with…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Nishant Jain , Suryansh Kumar , Luc Van Gool

We investigate the use of Neural Radiance Fields (NeRF) to learn high quality 3D object category models from collections of input images. In contrast to previous work, we are able to do this whilst simultaneously separating foreground…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Christopher Xie , Keunhong Park , Ricardo Martin-Brualla , Matthew Brown

Recent progress in large-scale scene rendering has yielded Neural Radiance Fields (NeRF)-based models with an impressive ability to synthesize scenes across small objects and indoor scenes. Nevertheless, extending this idea to large-scale…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Xiaohan Zhang , Yukui Qiu , Zhenyu Sun , Qi Liu

As autonomous robots interact and navigate around real-world environments such as homes, it is useful to reliably identify and manipulate articulated objects, such as doors and cabinets. Many prior works in object articulation…

Robotics · Computer Science 2022-01-04 Vicky Zeng , Tabitha Edith Lee , Jacky Liang , Oliver Kroemer

Articulated objects are fundamental for robotics, simulation of physics, and interactive virtual environments. However, reconstructing them from visual input remains challenging, as it requires jointly inferring both part geometry and…

Robotics · Computer Science 2026-03-17 Zhuangzhe Wu , Yue Xin , Chengkai Hou , Minghao Chen , Yaoxu Lyu , Jieyu Zhang , Shanghang Zhang

Implicit neural representations (INRs) mark a fundamental shift in signal modeling, moving from discrete sampled data to continuous functional representations. By parameterizing signals as neural networks, INRs provide a unified framework…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Dhananjaya Jayasundara , Vishal M. Patel

Inferring a meaningful geometric scene representation from a single image is a fundamental problem in computer vision. Approaches based on traditional depth map prediction can only reason about areas that are visible in the image.…

Computer Vision and Pattern Recognition · Computer Science 2023-04-20 Felix Wimbauer , Nan Yang , Christian Rupprecht , Daniel Cremers

Modeling hand-object interactions is a fundamentally challenging task in 3D computer vision. Despite remarkable progress that has been achieved in this field, existing methods still fail to synthesize the hand-object interaction…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Zhongqun Zhang , Jifei Song , Eduardo Pérez-Pellitero , Yiren Zhou , Hyung Jin Chang , Aleš Leonardis

This paper presents one of the first learning-based NeRF 3D instance segmentation pipelines, dubbed as Instance Neural Radiance Field, or Instance NeRF. Taking a NeRF pretrained from multi-view RGB images as input, Instance NeRF can learn…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Yichen Liu , Benran Hu , Junkai Huang , Yu-Wing Tai , Chi-Keung Tang

Neural Radiance Fields or NeRFs have become the representation of choice for problems in view synthesis or image-based rendering, as well as in many other applications across computer graphics and vision, and beyond. At their core, NeRFs…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Ravi Ramamoorthi

CodeNeRF is an implicit 3D neural representation that learns the variation of object shapes and textures across a category and can be trained, from a set of posed images, to synthesize novel views of unseen objects. Unlike the original…

Graphics · Computer Science 2021-09-07 Wonbong Jang , Lourdes Agapito

Recently, Neural Radiance Fields (NeRF) has exhibited significant success in novel view synthesis, surface reconstruction, etc. However, since no physical reflection is considered in its rendering pipeline, NeRF mistakes the reflection in…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Junyi Zeng , Chong Bao , Rui Chen , Zilong Dong , Guofeng Zhang , Hujun Bao , Zhaopeng Cui

Neural radiance fields provide state-of-the-art view synthesis quality but tend to be slow to render. One reason is that they make use of volume rendering, thus requiring many samples (and model queries) per ray at render time. Although…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Haithem Turki , Vasu Agrawal , Samuel Rota Bulò , Lorenzo Porzi , Peter Kontschieder , Deva Ramanan , Michael Zollhöfer , Christian Richardt

Neural Radiance Field (NeRF) is a framework that represents a 3D scene in the weights of a fully connected neural network, known as the Multi-Layer Perception(MLP). The method was introduced for the task of novel view synthesis and is able…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Mohamed Debbagh

Human perception is structured around objects which form the basis for our higher-level cognition and impressive systematic generalization abilities. Yet most work on representation learning focuses on feature learning without even…

Faster rendering of synthetic images is a core problem in the field of computer graphics. Rendering algorithms, such as path-tracing is dependent on parameters like size of the image, number of light bounces, number of samples per pixel,…

Graphics · Computer Science 2023-06-29 Annada Prasad Behera , Subhankar Mishra

We present neural radiance fields (NeRF) with templates, dubbed Template-NeRF, for modeling appearance and geometry and generating dense shape correspondences simultaneously among objects of the same category from only multi-view posed…

Computer Vision and Pattern Recognition · Computer Science 2021-11-09 Jianfei Guo , Zhiyuan Yang , Xi Lin , Qingfu Zhang

With the advent of Neural Radiance Field (NeRF), representing 3D scenes through multiple observations has shown remarkable improvements in performance. Since this cutting-edge technique is able to obtain high-resolution renderings by…

Robotics · Computer Science 2023-09-18 Minjae Lee , Kyeongsu Kang , Hyeonwoo Yu