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Related papers: Cameras as Rays: Pose Estimation via Ray Diffusion

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In this paper, we introduce an SE(3) diffusion model-based point cloud registration framework for 6D object pose estimation in real-world scenarios. Our approach formulates the 3D registration task as a denoising diffusion process, which…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Haobo Jiang , Mathieu Salzmann , Zheng Dang , Jin Xie , Jian Yang

Human pose estimation (HPE) from Radio Frequency vision (RF-vision) performs human sensing using RF signals that penetrate obstacles without revealing privacy (e.g., facial information). Recently, mmWave radar has emerged as a promising…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Junqiao Fan , Jianfei Yang , Yuecong Xu , Lihua Xie

Reconstructing the 3D shape of an object from a single RGB image is a long-standing and highly challenging problem in computer vision. In this paper, we propose a novel method for single-image 3D reconstruction which generates a sparse…

Computer Vision and Pattern Recognition · Computer Science 2023-02-24 Luke Melas-Kyriazi , Christian Rupprecht , Andrea Vedaldi

Accurate camera viewpoint estimation under sparse-view conditions remains challenging, particularly in two-view scenarios. Recent approaches leverage diffusion models such as Zero123 to synthesize novel views conditioned on relative…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Yan-Ting Chen , Hao-Wei Chen , Tsu-Ching Hsiao , Chun-Yi Lee

Pairwise pose estimation from images with little or no overlap is an open challenge in computer vision. Existing methods, even those trained on large-scale datasets, struggle in these scenarios due to the lack of identifiable…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Ruojin Cai , Jason Y. Zhang , Philipp Henzler , Zhengqi Li , Noah Snavely , Ricardo Martin-Brualla

Diffusion models have made significant strides in image generation, mastering tasks such as unconditional image synthesis, text-image translation, and image-to-image conversions. However, their capability falls short in the realm of video…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Gaurav Shrivastava , Abhinav Shrivastava

Segmenting objects in an environment is a crucial task for autonomous driving and robotics, as it enables a better understanding of the surroundings of each agent. Although camera sensors provide rich visual details, they are vulnerable to…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Huawei Sun , Bora Kunter Sahin , Georg Stettinger , Maximilian Bernhard , Matthias Schubert , Robert Wille

Diffusion models have become a popular approach for image generation and reconstruction due to their numerous advantages. However, most diffusion-based inverse problem-solving methods only deal with 2D images, and even recently published 3D…

Image and Video Processing · Electrical Eng. & Systems 2023-09-04 Suhyeon Lee , Hyungjin Chung , Minyoung Park , Jonghyuk Park , Wi-Sun Ryu , Jong Chul Ye

Diffusion models are capable of generating impressive images conditioned on text descriptions, and extensions of these models allow users to edit images at a relatively coarse scale. However, the ability to precisely edit the layout,…

Computer Vision and Pattern Recognition · Computer Science 2024-02-01 Daniel Geng , Andrew Owens

We present a method named iComMa to address the 6D camera pose estimation problem in computer vision. Conventional pose estimation methods typically rely on the target's CAD model or necessitate specific network training tailored to…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Yuan Sun , Xuan Wang , Yunfan Zhang , Jie Zhang , Caigui Jiang , Yu Guo , Fei Wang

The task of 3D shape captioning occupies a significant place within the domain of computer graphics and has garnered considerable interest in recent years. Traditional approaches to this challenge frequently depend on the utilization of…

Graphics · Computer Science 2025-09-30 Zhenyu Shu , Jiawei Wen , Shiyang Li , Shiqing Xin , Ligang Liu

Monocular 3D human pose estimation (HPE) often encounters challenges such as depth ambiguity and occlusion during the 2D-to-3D lifting process. Additionally, traditional methods may overlook multi-scale skeleton features when utilizing…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Bing Han , Yuhua Huang , Pan Gao

In this paper, we propose a novel monocular ray-based 3D (Ray3D) absolute human pose estimation with calibrated camera. Accurate and generalizable absolute 3D human pose estimation from monocular 2D pose input is an ill-posed problem. To…

Computer Vision and Pattern Recognition · Computer Science 2022-10-28 Yu Zhan , Fenghai Li , Renliang Weng , Wongun Choi

Nine-degrees-of-freedom (9-DoF) object pose and size estimation is crucial for enabling augmented reality and robotic manipulation. Category-level methods have received extensive research attention due to their potential for generalization…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Jian Liu , Wei Sun , Hui Yang , Pengchao Deng , Chongpei Liu , Nicu Sebe , Hossein Rahmani , Ajmal Mian

Camera relocalization methods range from dense image alignment to direct camera pose regression from a query image. Among these, sparse feature matching stands out as an efficient, versatile, and generally lightweight approach with numerous…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Vincenzo Polizzi , Marco Cannici , Davide Scaramuzza , Jonathan Kelly

In this paper we tackle the problem of estimating the 3D pose of object instances, using convolutional neural networks. State of the art methods usually solve the challenging problem of regression in angle space indirectly, focusing on…

Computer Vision and Pattern Recognition · Computer Science 2016-07-11 Andreas Doumanoglou , Vassileios Balntas , Rigas Kouskouridas , Tae-Kyun Kim

We study the problem of estimating the body movements of a camera wearer from egocentric videos. Current methods for ego-body pose estimation rely on temporally dense sensor data, such as IMU measurements from spatially sparse body parts…

Computer Vision and Pattern Recognition · Computer Science 2024-11-07 Seunggeun Chi , Pin-Hao Huang , Enna Sachdeva , Hengbo Ma , Karthik Ramani , Kwonjoon Lee

We present an algorithm to estimate fast and accurate depth maps from light fields via a sparse set of depth edges and gradients. Our proposed approach is based around the idea that true depth edges are more sensitive than texture edges to…

Computer Vision and Pattern Recognition · Computer Science 2021-07-08 Numair Khan , Min H. Kim , James Tompkin

Diffusion models have established new state of the art in a multitude of computer vision tasks, including image restoration. Diffusion-based inverse problem solvers generate reconstructions of exceptional visual quality from heavily…

Image and Video Processing · Electrical Eng. & Systems 2024-08-21 Zalan Fabian , Berk Tinaz , Mahdi Soltanolkotabi

Pose estimation is an important technique for nonverbal human-robot interaction. That said, the presence of a camera in a person's space raises privacy concerns and could lead to distrust of the robot. In this paper, we propose a…

Robotics · Computer Science 2020-11-17 Youya Xia , Yifan Tang , Yuhan Hu , Guy Hoffman