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Scene understanding based on LiDAR point cloud is an essential task for autonomous cars to drive safely, which often employs spherical projection to map 3D point cloud into multi-channel 2D images for semantic segmentation. Most existing…

Computer Vision and Pattern Recognition · Computer Science 2021-07-19 Aoran Xiao , Xiaofei Yang , Shijian Lu , Dayan Guan , Jiaxing Huang

With increasing applications of 3D hand pose estimation in various human-computer interaction applications, convolution neural networks (CNNs) based estimation models have been actively explored. However, the existing models require complex…

Computer Vision and Pattern Recognition · Computer Science 2021-08-13 Wencan Cheng , Jae Hyun Park , Jong Hwan Ko

In the field of computer vision, 6D object detection and pose estimation are critical for applications such as robotics, augmented reality, and autonomous driving. Traditional methods often struggle with achieving high accuracy in both…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Yuhui Jin , Yaqiong Zhang , Zheyuan Xu , Wenqing Zhang , Jingyu Xu

Traditional shape descriptors have been gradually replaced by convolutional neural networks due to their superior performance in feature extraction and classification. The state-of-the-art methods recognize object shapes via image…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Wenlong Shi , Changsheng Lu , Ming Shao , Yinjie Zhang , Siyu Xia , Piotr Koniusz

This paper tackles category-level pose estimation of articulated objects in robotic manipulation tasks and introduces a new benchmark dataset. While recent methods estimate part poses and sizes at the category level, they often rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Jingshun Huang , Haitao Lin , Tianyu Wang , Yanwei Fu , Xiangyang Xue , Yi Zhu

Existing Object Pose Estimation (OPE) methods for stacked scenarios are not robust to changes in object scale. This paper proposes a new 6DoF OPE network (NormNet) for different scale objects in stacked scenarios. Specifically, each…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 En-Te Lin , Wei-Jie Lv , Ding-Tao Huang , Long Zeng

Unsupervised image registration commonly adopts U-Net style networks to predict dense displacement fields in the full-resolution spatial domain. For high-resolution volumetric image data, this process is however resource-intensive and…

Computer Vision and Pattern Recognition · Computer Science 2023-07-07 Xi Jia , Joseph Bartlett , Wei Chen , Siyang Song , Tianyang Zhang , Xinxing Cheng , Wenqi Lu , Zhaowen Qiu , Jinming Duan

This paper presents 6D-ViT, a transformer-based instance representation learning network, which is suitable for highly accurate category-level object pose estimation on RGB-D images. Specifically, a novel two-stream encoder-decoder…

Computer Vision and Pattern Recognition · Computer Science 2022-11-07 Lu Zou , Zhangjin Huang , Naijie Gu , Guoping Wang

We develop a novel deep contour detection algorithm with a top-down fully convolutional encoder-decoder network. Our proposed method, named TD-CEDN, solves two important issues in this low-level vision problem: (1) learning multi-scale and…

Computer Vision and Pattern Recognition · Computer Science 2017-07-13 Yahui Liu , Jian Yao , Li Li , Xiaohu Lu , Jing Han

We introduce a novel method for 3D object detection and pose estimation from color images only. We first use segmentation to detect the objects of interest in 2D even in presence of partial occlusions and cluttered background. By contrast…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Mahdi Rad , Vincent Lepetit

In this paper, we address the challenging task of estimating 6D object pose from a single RGB image. Motivated by the deep learning based object detection methods, we propose a concise and efficient network that integrate 6D object pose…

Computer Vision and Pattern Recognition · Computer Science 2020-02-21 Jianhan Mei , Henghui Ding , Xudong Jiang

Accurate 6D object pose estimation is fundamental to robotic manipulation and grasping. Previous methods follow a local optimization approach which minimizes the distance between closest point pairs to handle the rotation ambiguity of…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Meng Tian , Liang Pan , Marcelo H Ang , Gim Hee Lee

We propose a single-stage, category-level 6-DoF pose estimation algorithm that simultaneously detects and tracks instances of objects within a known category. Our method takes as input the previous and current frame from a monocular RGB…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Yunzhi Lin , Jonathan Tremblay , Stephen Tyree , Patricio A. Vela , Stan Birchfield

Real-time semantic segmentation, which can be visually understood as the pixel-level classification task on the input image, currently has broad application prospects, especially in the fast-developing fields of autonomous driving and drone…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Guangwei Gao , Guoan Xu , Juncheng Li , Yi Yu , Huimin Lu , Jian Yang

In this paper, we propose a novel real-time 6D object pose estimation framework, named G2L-Net. Our network operates on point clouds from RGB-D detection in a divide-and-conquer fashion. Specifically, our network consists of three steps.…

Computer Vision and Pattern Recognition · Computer Science 2020-03-27 Wei Chen , Xi Jia , Hyung Jin Chang , Jinming Duan , Ales Leonardis

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

The goal of this paper is to estimate the 6D pose and dimensions of unseen object instances in an RGB-D image. Contrary to "instance-level" 6D pose estimation tasks, our problem assumes that no exact object CAD models are available during…

Computer Vision and Pattern Recognition · Computer Science 2019-06-25 He Wang , Srinath Sridhar , Jingwei Huang , Julien Valentin , Shuran Song , Leonidas J. Guibas

6-DoF object pose estimation from a monocular image is challenging, and a post-refinement procedure is generally needed for high-precision estimation. In this paper, we propose a framework based on a recurrent neural network (RNN) for…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Yan Xu , Kwan-Yee Lin , Guofeng Zhang , Xiaogang Wang , Hongsheng Li

We propose SfM-Net, a geometry-aware neural network for motion estimation in videos that decomposes frame-to-frame pixel motion in terms of scene and object depth, camera motion and 3D object rotations and translations. Given a sequence of…

Computer Vision and Pattern Recognition · Computer Science 2017-04-26 Sudheendra Vijayanarasimhan , Susanna Ricco , Cordelia Schmid , Rahul Sukthankar , Katerina Fragkiadaki

We introduce a simple yet effective algorithm that uses convolutional neural networks to directly estimate object poses from videos. Our approach leverages the temporal information from a video sequence, and is computationally efficient and…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Apoorva Beedu , Zhile Ren , Varun Agrawal , Irfan Essa