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State-of-the-art object pose estimation handles multiple instances in a test image by using multi-model formulations: detection as a first stage and then separately trained networks per object for 2D-3D geometric correspondence prediction…

计算机视觉与模式识别 · 计算机科学 2022-08-23 Stefan Thalhammer , Timothy Patten , Markus Vincze

We propose a domain adaptation approach for object detection. We introduce a two-step method: the first step makes the detector robust to low-level differences and the second step adapts the classifiers to changes in the high-level…

计算机视觉与模式识别 · 计算机科学 2019-11-25 Adrian Lopez Rodriguez , Krystian Mikolajczyk

Following the success of machine vision systems for on-line automated quality control and inspection processes, an object recognition solution is presented in this work for two different specific applications, i.e., the detection of quality…

计算机视觉与模式识别 · 计算机科学 2022-07-01 Kai Yao , Alberto Ortiz , Francisco Bonnin-Pascual

LiDAR-based 3D single object tracking is a challenging issue in robotics and autonomous driving. Currently, existing approaches usually suffer from the problem that objects at long distance often have very sparse or partially-occluded point…

计算机视觉与模式识别 · 计算机科学 2022-09-05 Jiayao Shan , Sifan Zhou , Yubo Cui , Zheng Fang

SSD (Single Shot Multibox Detector) is one of the most successful object detectors for its high accuracy and fast speed. However, the features from shallow layer (mainly Conv4_3) of SSD lack semantic information, resulting in poor…

计算机视觉与模式识别 · 计算机科学 2021-08-26 Hao Zhang , Xianggong Hong , Li Zhu

Traditional deep learning-based visual imitation learning techniques require a large amount of demonstration data for model training, and the pre-trained models are difficult to adapt to new scenarios. To address these limitations, we…

机器人学 · 计算机科学 2022-04-26 Dandan Zhang , Wen Fan , John Lloyd , Chenguang Yang , Nathan Lepora

In order to meaningfully interact with the world, robot manipulators must be able to interpret objects they encounter. A critical aspect of this interpretation is pose estimation: inferring quantities that describe the position and…

机器人学 · 计算机科学 2023-05-23 Walter Goodwin , Ioannis Havoutis , Ingmar Posner

In this paper, we propose a method for ensembling the outputs of multiple object detectors for improving detection performance and precision of bounding boxes on image data. We further extend it to video data by proposing a two-stage…

计算机视觉与模式识别 · 计算机科学 2021-02-10 Kateryna Chumachenko , Jenni Raitoharju , Alexandros Iosifidis , Moncef Gabbouj

We propose a one-step procedure to estimate the latent positions in random dot product graphs efficiently. Unlike the classical spectral-based methods such as the adjacency and Laplacian spectral embedding, the proposed one-step procedure…

统计理论 · 数学 2020-11-16 Fangzheng Xie , Yanxun Xu

Locating an object in a sequence of frames, given its appearance in the first frame of the sequence, is a hard problem that involves many stages. Usually, state-of-the-art methods focus on bringing novel ideas in the visual encoding or…

计算机视觉与模式识别 · 计算机科学 2024-05-20 Omar Abdelaziz , Mohamed Sami Shehata

We develop a probabilistic interpretation of two-stage object detection. We show that this probabilistic interpretation motivates a number of common empirical training practices. It also suggests changes to two-stage detection pipelines.…

计算机视觉与模式识别 · 计算机科学 2021-03-15 Xingyi Zhou , Vladlen Koltun , Philipp Krähenbühl

Existing pose estimation approaches fall into two categories: single-stage and multi-stage methods. While multi-stage methods are seemingly more suited for the task, their performance in current practice is not as good as single-stage…

计算机视觉与模式识别 · 计算机科学 2019-05-31 Wenbo Li , Zhicheng Wang , Binyi Yin , Qixiang Peng , Yuming Du , Tianzi Xiao , Gang Yu , Hongtao Lu , Yichen Wei , Jian Sun

Shape instantiation which predicts the 3D shape of a dynamic target from one or more 2D images is important for real-time intra-operative navigation. Previously, a general shape instantiation framework was proposed with manual image…

计算机视觉与模式识别 · 计算机科学 2019-07-26 Xiao-Yun Zhou , Zhao-Yang Wang , Peichao Li , Jian-Qing Zheng , Guang-Zhong Yang

6D object pose estimation is a prerequisite for many applications. In recent years, monocular pose estimation has attracted much research interest because it does not need depth measurements. In this work, we introduce ConvPoseCNN, a fully…

计算机视觉与模式识别 · 计算机科学 2019-12-17 Catherine Capellen , Max Schwarz , Sven Behnke

Object tracking becomes critical especially when similar objects are present in the same area. Recent state-of-the-art (SOTA) approaches are proposed based on taking a matching network with a heavy structure to distinguish the target from…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Faraz Lotfi , Hamid D. Taghirad

In LiDAR-based 3D object detection for autonomous driving, the ratio of the object size to input scene size is significantly smaller compared to 2D detection cases. Overlooking this difference, many 3D detectors directly follow the common…

计算机视觉与模式识别 · 计算机科学 2021-12-14 Lue Fan , Ziqi Pang , Tianyuan Zhang , Yu-Xiong Wang , Hang Zhao , Feng Wang , Naiyan Wang , Zhaoxiang Zhang

Most recent 6D pose estimation frameworks first rely on a deep network to establish correspondences between 3D object keypoints and 2D image locations and then use a variant of a RANSAC-based Perspective-n-Point (PnP) algorithm. This…

计算机视觉与模式识别 · 计算机科学 2020-03-24 Yinlin Hu , Pascal Fua , Wei Wang , Mathieu Salzmann

Recent works on two-stage cross-domain detection have widely explored the local feature patterns to achieve more accurate adaptation results. These methods heavily rely on the region proposal mechanisms and ROI-based instance-level features…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Chaoqi Chen , Zebiao Zheng , Yue Huang , Xinghao Ding , Yizhou Yu

One-stage object detectors are trained by optimizing classification-loss and localization-loss simultaneously, with the former suffering much from extreme foreground-background class imbalance issue due to the large number of anchors. This…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Kean Chen , Jianguo Li , Weiyao Lin , John See , Ji Wang , Lingyu Duan , Zhibo Chen , Changwei He , Junni Zou

We propose a new method for object pose estimation without CAD models. The previous feature-matching-based method OnePose has shown promising results under a one-shot setting which eliminates the need for CAD models or object-specific…

计算机视觉与模式识别 · 计算机科学 2023-01-19 Xingyi He , Jiaming Sun , Yuang Wang , Di Huang , Hujun Bao , Xiaowei Zhou