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Camera arrays provide spatial and angular information within a single snapshot. With refocusing methods, focal planes can be altered after exposure. In this letter, we propose a light field refocusing method to improve the imaging quality…

图像与视频处理 · 电气工程与系统科学 2021-08-29 Yingqian Wang , Jungang Yang , Yulan Guo , Chao Xiao , Wei An

Neural graphics primitives, parameterized by fully connected neural networks, can be costly to train and evaluate. We reduce this cost with a versatile new input encoding that permits the use of a smaller network without sacrificing…

计算机视觉与模式识别 · 计算机科学 2022-05-05 Thomas Müller , Alex Evans , Christoph Schied , Alexander Keller

Human pose estimation (i.e., locating the body parts / joints of a person) is a fundamental problem in human-computer interaction and multimedia applications. Significant progress has been made based on the development of depth sensors,…

计算机视觉与模式识别 · 计算机科学 2016-08-16 Keze Wang , Shengfu Zhai , Hui Cheng , Xiaodan Liang , Liang Lin

Fine-grained hashing has become a powerful solution for rapid and efficient image retrieval, particularly in scenarios requiring high discrimination between visually similar categories. To enable each hash bit to correspond to specific…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Peng Wang , Yong Li , Lin Zhao , Xiu-Shen Wei

We have recently seen tremendous progress in the neural advances for photo-real human modeling and rendering. However, it's still challenging to integrate them into an existing mesh-based pipeline for downstream applications. In this paper,…

Video reconstruction from a single motion-blurred image is a challenging problem, which can enhance the capabilities of existing cameras. Recently, several works addressed this task using conventional imaging and deep learning. Yet, such…

图像与视频处理 · 电气工程与系统科学 2022-12-20 Erez Yosef , Shay Elmalem , Raja Giryes

6D pose estimation of textureless objects is a valuable but challenging task for many robotic applications. In this work, we propose a framework to address this challenge using only RGB images acquired from multiple viewpoints. The core…

机器人学 · 计算机科学 2023-02-23 Jun Yang , Wenjie Xue , Sahar Ghavidel , Steven L. Waslander

Deep learning methods have achieved excellent performance in pose estimation, but the lack of robustness causes the keypoints to change drastically between similar images. In view of this problem, a stable heatmap regression method is…

计算机视觉与模式识别 · 计算机科学 2021-05-11 Yumeng Zhang , Li Chen , Yufeng Liu , Xiaoyan Guo , Wen Zheng , Junhai Yong

In general, hand pose estimation aims to improve the robustness of model performance in the real-world scenes. However, it is difficult to enhance the robustness since existing datasets are obtained in restricted environments to annotate 3D…

计算机视觉与模式识别 · 计算机科学 2023-10-20 Bosang Kim , Jonghyun Kim , Hyotae Lee , Lanying Jin , Jeongwon Ha , Dowoo Kwon , Jungpyo Kim , Wonhyeok Im , KyungMin Jin , Jungho Lee

Deducing a 3D human pose from a single 2D image is inherently challenging because multiple 3D poses can correspond to the same 2D representation. 3D data can resolve this pose ambiguity, but it is expensive to record and requires an…

When a camera travels across a 3D world, only a fraction of pixel value changes; an event-based camera observes the change as sparse events. How can we utilize sparse events for efficient recovery of the camera pose? We show that we can…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Mana Masuda , Yusuke Sekikawa , Hideo Saito

Neural Radiance Fields (NeRFs) are a powerful representation for modeling a 3D scene as a continuous function. Though NeRF is able to render complex 3D scenes with view-dependent effects, few efforts have been devoted to exploring its…

计算机视觉与模式识别 · 计算机科学 2022-11-18 Yifan Jiang , Peter Hedman , Ben Mildenhall , Dejia Xu , Jonathan T. Barron , Zhangyang Wang , Tianfan Xue

Parametric feature grid encodings have gained significant attention as an encoding approach for neural fields since they allow for much smaller MLPs, which significantly decreases the inference time of the models. In this work, we propose…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Mihir Mahajan , Florian Hofherr , Daniel Cremers

High-resolution imagery is often hindered by limitations in sensor technology, atmospheric conditions, and costs. Such challenges occur in satellite remote sensing, but also with handheld cameras, such as our smartphones. Hence,…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Sander Riisøen Jyhne , Christian Igel , Morten Goodwin , Per-Arne Andersen , Serge Belongie , Nico Lang

Absolute Pose Regression (APR) methods use deep neural networks to directly regress camera poses from RGB images. However, the predominant APR architectures only rely on 2D operations during inference, resulting in limited accuracy of pose…

计算机视觉与模式识别 · 计算机科学 2024-03-04 Shuai Chen , Yash Bhalgat , Xinghui Li , Jiawang Bian , Kejie Li , Zirui Wang , Victor Adrian Prisacariu

Recent methods for neural surface representation and rendering, for example NeuS, have demonstrated the remarkably high-quality reconstruction of static scenes. However, the training of NeuS takes an extremely long time (8 hours), which…

计算机视觉与模式识别 · 计算机科学 2023-11-20 Yiming Wang , Qin Han , Marc Habermann , Kostas Daniilidis , Christian Theobalt , Lingjie Liu

How to effectively represent camera pose is an essential problem in 3D computer vision, especially in tasks such as camera pose regression and novel view synthesis. Traditionally, 3D position of the camera is represented by Cartesian…

计算机视觉与模式识别 · 计算机科学 2021-05-11 Yaxuan Zhu , Ruiqi Gao , Siyuan Huang , Song-Chun Zhu , Ying Nian Wu

Although human pose estimation for various computer vision (CV) applications has been studied extensively in the last few decades, yet in-bed pose estimation using camera-based vision methods has been ignored by the CV community because it…

计算机视觉与模式识别 · 计算机科学 2019-06-06 Shuangjun Liu , Yu Yin , Sarah Ostadabbas

The performance of human pose estimation depends on the spatial accuracy of keypoint localization. Most existing methods pursue the spatial accuracy through learning the high-resolution (HR) representation from input images. By the…

计算机视觉与模式识别 · 计算机科学 2021-07-08 Hanbin Dai , Hailin Shi , Wu Liu , Linfang Wang , Yinglu Liu , Tao Mei

Differentiable rendering aims to compute the derivative of the image rendering function with respect to the rendering parameters. This paper presents a novel algorithm for 6-DoF pose estimation through gradient-based optimization using a…

计算机视觉与模式识别 · 计算机科学 2022-12-27 Ramchander Rao Bhaskara , Roshan Thomas Eapen , Manoranjan Majji