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As previous representations for reinforcement learning cannot effectively incorporate a human-intuitive understanding of the 3D environment, they usually suffer from sub-optimal performances. In this paper, we present Semantic-aware Neural…

Machine Learning · Computer Science 2023-06-01 Dongseok Shim , Seungjae Lee , H. Jin Kim

Volume Rendering is an important technique for visualizing three-dimensional scalar data grids and is commonly employed for scientific and medical image data. Direct Volume Rendering (DVR) is a well established and efficient rendering…

Graphics · Computer Science 2021-06-11 Jakob Weiss , Nassir Navab

In this paper, we present a simple yet efficient approach for video representation, called Adversarial Video Distillation (AVD). The key idea is to represent videos by compressing them in the form of realistic images, which can be used in a…

Computer Vision and Pattern Recognition · Computer Science 2019-07-15 Mohammad Tavakolian , Mohammad Sabokrou , Abdenour Hadid

The rendering procedure used by neural radiance fields (NeRF) samples a scene with a single ray per pixel and may therefore produce renderings that are excessively blurred or aliased when training or testing images observe scene content at…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Jonathan T. Barron , Ben Mildenhall , Matthew Tancik , Peter Hedman , Ricardo Martin-Brualla , Pratul P. Srinivasan

Neural rendering techniques combining machine learning with geometric reasoning have arisen as one of the most promising approaches for synthesizing novel views of a scene from a sparse set of images. Among these, stands out the Neural…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Albert Pumarola , Enric Corona , Gerard Pons-Moll , Francesc Moreno-Noguer

Neural Radiance Fields (NeRF) have garnered remarkable success in novel view synthesis. Nonetheless, the task of generating high-quality images for novel views persists as a critical challenge. While the existing efforts have exhibited…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Linsheng Chen , Guangrun Wang , Liuchun Yuan , Keze Wang , Ken Deng , Philip H. S. Torr

Neural fields (NeRF) have emerged as a promising approach for representing continuous 3D scenes. Nevertheless, the lack of semantic encoding in NeRFs poses a significant challenge for scene decomposition. To address this challenge, we…

Computer Vision and Pattern Recognition · Computer Science 2024-05-09 Ning Wang , Lefei Zhang , Angel X Chang

In instance-level detection tasks (e.g., object detection), reducing input resolution is an easy option to improve runtime efficiency. However, this option traditionally hurts the detection performance much. This paper focuses on boosting…

Computer Vision and Pattern Recognition · Computer Science 2021-09-16 Lu Qi , Jason Kuen , Jiuxiang Gu , Zhe Lin , Yi Wang , Yukang Chen , Yanwei Li , Jiaya Jia

Neural radiance field (NeRF) has shown remarkable performance in generating photo-realistic novel views. Among recent NeRF related research, the approaches that involve the utilization of explicit structures like grids to manage features…

Computer Vision and Pattern Recognition · Computer Science 2023-09-07 Yongjae Lee , Li Yang , Deliang Fan

This paper proposes a cross-modal distillation framework, PartDistill, which transfers 2D knowledge from vision-language models (VLMs) to facilitate 3D shape part segmentation. PartDistill addresses three major challenges in this task: the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Ardian Umam , Cheng-Kun Yang , Min-Hung Chen , Jen-Hui Chuang , Yen-Yu Lin

Image resampling is a basic technique that is widely employed in daily applications, such as camera photo editing. Recent deep neural networks (DNNs) have made impressive progress in performance by introducing learned data priors. Still,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Jiacheng Li , Chang Chen , Fenglong Song , Youliang Yan , Zhiwei Xiong

Distilled autoregressive (AR) video models enable efficient streaming generation but frequently misalign with human visual preferences. Existing reinforcement learning (RL) frameworks are not naturally suited to these architectures,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Songchun Zhang , Zeyue Xue , Siming Fu , Jie Huang , Xianghao Kong , Y Ma , Haoyang Huang , Nan Duan , Anyi Rao

Neural Radiance Field (NeRF)-based volumetric video has revolutionized visual media by delivering photorealistic Free-Viewpoint Video (FVV) experiences that provide audiences with unprecedented immersion and interactivity. However, the…

Image and Video Processing · Electrical Eng. & Systems 2024-12-17 Qiang Hu , Houqiang Zhong , Zihan Zheng , Xiaoyun Zhang , Zhengxue Cheng , Li Song , Guangtao Zhai , Yanfeng Wang

High-fidelity sensor simulation of light-based sensors such as cameras and LiDARs is critical for safe and accurate autonomy testing. Neural radiance field (NeRF)-based methods that reconstruct sensor observations via ray-casting of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Yun Chen , Matthew Haines , Jingkang Wang , Sahil Jain , Krzysztof Baron-Lis , Sivabalan Manivasagam , Ze Yang , Raquel Urtasun

With the introduction of Neural Radiance Fields (NeRFs), novel view synthesis has recently made a big leap forward. At the core, NeRF proposes that each 3D point can emit radiance, allowing to conduct view synthesis using differentiable…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Marie-Julie Rakotosaona , Fabian Manhardt , Diego Martin Arroyo , Michael Niemeyer , Abhijit Kundu , Federico Tombari

Vision-Language Pre-training (VLP) shows remarkable progress with the assistance of extremely heavy parameters, which challenges deployment in real applications. Knowledge distillation is well recognized as the essential procedure in model…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Huafeng Kuang , Jie Wu , Xiawu Zheng , Ming Li , Xuefeng Xiao , Rui Wang , Min Zheng , Rongrong Ji

Neural Radiance Fields (NeRF) has been wildly applied to various tasks for its high-quality representation of 3D scenes. It takes long per-scene training time and per-image testing time. In this paper, we present EfficientNeRF as an…

Computer Vision and Pattern Recognition · Computer Science 2022-06-03 Tao Hu , Shu Liu , Yilun Chen , Tiancheng Shen , Jiaya Jia

Novel view synthesis from a single image requires inferring occluded regions of objects and scenes whilst simultaneously maintaining semantic and physical consistency with the input. Existing approaches condition neural radiance fields…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Jiatao Gu , Alex Trevithick , Kai-En Lin , Josh Susskind , Christian Theobalt , Lingjie Liu , Ravi Ramamoorthi

Embedding polygonal mesh assets within photorealistic Neural Radience Fields (NeRF) volumes, such that they can be rendered and their dynamics simulated in a physically consistent manner with the NeRF, is under-explored from the system…

Graphics · Computer Science 2023-09-12 Yi-Ling Qiao , Alexander Gao , Yiran Xu , Yue Feng , Jia-Bin Huang , Ming C. Lin

Neural Radiance Fields (NeRF) offer the potential to benefit 3D reconstruction tasks, including aerial photogrammetry. However, the scalability and accuracy of the inferred geometry are not well-documented for large-scale aerial…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Ningli Xu , Rongjun Qin , Debao Huang , Fabio Remondino