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In this paper, we propose a novel coarse-to-fine continuous pose diffusion method to enhance the precision of pick-and-place operations within robotic manipulation tasks. Leveraging the capabilities of diffusion networks, we facilitate the…

Robotics · Computer Science 2025-02-18 Shih-Wei Guo , Tsu-Ching Hsiao , Yu-Lun Liu , Chun-Yi Lee

Contact-based estimation of object pose is challenging due to discontinuities and ambiguous observations that can correspond to multiple possible system states. This multimodality makes it difficult to efficiently sample valid hypotheses…

Advances in 3D printing of biocompatible materials make patient-specific implants increasingly popular. The design of these implants is, however, still a tedious and largely manual process. Existing approaches to automate implant generation…

Image and Video Processing · Electrical Eng. & Systems 2023-10-03 Paul Friedrich , Julia Wolleb , Florentin Bieder , Florian M. Thieringer , Philippe C. Cattin

Accurate 6D pose estimation of 3D objects is a fundamental task in computer vision, and current research typically predicts the 6D pose by establishing correspondences between 2D image features and 3D model features. However, these methods…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Junbo Li , Weimin Yuan , Yinuo Wang , Yue Zeng , Shihao Shu , Cai Meng , Xiangzhi Bai

The Gaussian diffusion model, initially designed for image generation, has recently been adapted for 3D point cloud generation. However, these adaptations have not fully considered the intrinsic geometric characteristics of 3D shapes,…

Graphics · Computer Science 2024-08-01 Dengsheng Chen , Jie Hu , Xiaoming Wei , Enhua Wu

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…

Robotics · Computer Science 2023-02-23 Jun Yang , Wenjie Xue , Sahar Ghavidel , Steven L. Waslander

Probabilistic diffusion models have achieved state-of-the-art results for image synthesis, inpainting, and text-to-image tasks. However, they are still in the early stages of generating complex 3D shapes. This work proposes Diffusion-SDF, a…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Gene Chou , Yuval Bahat , Felix Heide

Existing methods for instance-level 6D pose estimation typically rely on neural networks that either directly regress the pose in $\mathrm{SE}(3)$ or estimate it indirectly via local feature matching. The former struggle with object…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Amir Hamza , Davide Boscaini , Weihang Li , Benjamin Busam , Fabio Poiesi

Category-level 6D pose estimation, aiming to predict the location and orientation of unseen object instances, is fundamental to many scenarios such as robotic manipulation and augmented reality, yet still remains unsolved. Precisely…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Jiaze Wang , Kai Chen , Qi Dou

Existing object pose estimation datasets are related to generic object types and there is so far no dataset for fine-grained object categories. In this work, we introduce a new large dataset to benchmark pose estimation for fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2018-11-09 Yaming Wang , Xiao Tan , Yi Yang , Xiao Liu , Errui Ding , Feng Zhou , Larry S. Davis

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

Acquiring high-quality data for training discriminative models is a crucial yet challenging aspect of building effective predictive systems. In this paper, we present Diffusion Inversion, a simple yet effective method that leverages the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Yongchao Zhou , Hshmat Sahak , Jimmy Ba

Real-time robotic grasping, supporting a subsequent precise object-in-hand operation task, is a priority target towards highly advanced autonomous systems. However, such an algorithm which can perform sufficiently-accurate grasping with…

Computer Vision and Pattern Recognition · Computer Science 2021-11-12 Tuan-Tang Le , Trung-Son Le , Yu-Ru Chen , Joel Vidal , Chyi-Yeu Lin

Knowledge of the 6D pose of an object can benefit in-hand object manipulation. In-hand 6D object pose estimation is challenging because of heavy occlusion produced by the robot's grippers, which can have an adverse effect on methods that…

In this work, we explore how a strategic selection of camera movements can facilitate the task of 6D multi-object pose estimation in cluttered scenarios while respecting real-world constraints important in robotics and augmented reality…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Juil Sock , Guillermo Garcia-Hernando , Tae-Kyun Kim

The conventional pose estimation of a 3D object usually requires the knowledge of the 3D model of the object. Even with the recent development in convolutional neural networks (CNNs), a 3D model is often necessary in the final estimation.…

Robotics · Computer Science 2019-01-01 Zhongang Cai , Cunjun Yu , Quang-Cuong Pham

3D object detection is an essential task for achieving autonomous driving. Existing anchor-based detection methods rely on empirical heuristics setting of anchors, which makes the algorithms lack elegance. In recent years, we have witnessed…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Xin Zhou , Jinghua Hou , Tingting Yao , Dingkang Liang , Zhe Liu , Zhikang Zou , Xiaoqing Ye , Jianwei Cheng , Xiang Bai

Articulated objects are an important type of interactable objects in everyday environments. In this paper, we propose PhysNAP, a novel diffusion model-based approach for generating articulated objects that aligns them with partial point…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Jens U. Kreber , Joerg Stueckler

We tackle the problem of getting a full 6-DOF pose estimation of a query image inside a given point cloud. This technical report re-evaluates the algorithms proposed by Y. Li et al. "Worldwide Pose Estimation using 3D Point Cloud". Our code…

Computer Vision and Pattern Recognition · Computer Science 2015-11-05 Fabian Tschopp , Marco Zorzi

Pose estimation refers to tracking a human's full body posture, including their head, torso, arms, and legs. The problem is challenging in practical settings where the number of body sensors are limited. Past work has shown promising…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Sahil Bhandary Karnoor , Romit Roy Choudhury