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Given a 3D object, kinematic motion prediction aims to identify the mobile parts as well as the corresponding motion parameters. Due to the large variations in both topological structure and geometric details of 3D objects, this remains a…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Gengxin Liu , Qian Sun , Haibin Huang , Chongyang Ma , Yulan Guo , Li Yi , Hui Huang , Ruizhen Hu

While multi-class 3D detectors are needed in many robotics applications, training them with fully labeled datasets can be expensive in labeling cost. An alternative approach is to have targeted single-class labels on disjoint data samples.…

Computer Vision and Pattern Recognition · Computer Science 2022-05-13 Mao Ye , Chenxi Liu , Maoqing Yao , Weiyue Wang , Zhaoqi Leng , Charles R. Qi , Dragomir Anguelov

This paper investigates multi-scale feature approximation and transferable features for object detection from point clouds. Multi-scale features are critical for object detection from point clouds. However, multi-scale feature learning…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Hao Peng , Hong Sang , Yajing Ma , Ping Qiu , Chao Ji

3D object detection plays an important role in a large number of real-world applications. It requires us to estimate the localizations and the orientations of 3D objects in real scenes. In this paper, we present a new network architecture…

Computer Vision and Pattern Recognition · Computer Science 2019-09-25 Xin Zhao , Zhe Liu , Ruolan Hu , Kaiqi Huang

Object segmentation in three-dimensional (3-D) point clouds is a critical task for robots capable of 3-D perception. Despite the impressive performance of deep learning-based approaches on object segmentation in 2-D images, deep learning…

Image and Video Processing · Electrical Eng. & Systems 2019-10-31 Brian H. Wang , Wei-Lun Chao , Yan Wang , Bharath Hariharan , Kilian Q. Weinberger , Mark Campbell

Recent advances in deep learning greatly boost the performance of object detection. State-of-the-art methods such as Faster-RCNN, FPN and R-FCN have achieved high accuracy in challenging benchmark datasets. However, these methods require…

Computer Vision and Pattern Recognition · Computer Science 2019-08-15 Hao Yang , Hao Wu , Hao Chen

The impressive advancements in semi-supervised learning have driven researchers to explore its potential in object detection tasks within the field of computer vision. Semi-Supervised Object Detection (SSOD) leverages a combination of a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Tahira Shehzadi , Ifza , Didier Stricker , Muhammad Zeshan Afzal

This paper shows how an uncertainty-aware, deep neural network can be trained to detect, recognise and localise objects in 2D RGB images, in applications lacking annotated train-ng datasets. We propose a self-supervising teacher-student…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Irum Mehboob , Li Sun , Alireza Astegarpanah , Rustam Stolkin

Pixel-wise clean annotation is necessary for fully-supervised semantic segmentation, which is laborious and expensive to obtain. In this paper, we propose a weakly supervised 2D semantic segmentation model by incorporating sparse bounding…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Weixuan Sun , Jing Zhang , Nick Barnes

Semi-supervised object detection (SSOD) has made significant progress with the development of pseudo-label-based end-to-end methods. However, many of these methods face challenges due to class imbalance, which hinders the effectiveness of…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Purbayan Kar , Vishal Chudasama , Naoyuki Onoe , Pankaj Wasnik

We present a new domain adaptive self-training pipeline, named ST3D, for unsupervised domain adaptation on 3D object detection from point clouds. First, we pre-train the 3D detector on the source domain with our proposed random object…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Jihan Yang , Shaoshuai Shi , Zhe Wang , Hongsheng Li , Xiaojuan Qi

To safely deploy autonomous vehicles, onboard perception systems must work reliably at high accuracy across a diverse set of environments and geographies. One of the most common techniques to improve the efficacy of such systems in new…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Benjamin Caine , Rebecca Roelofs , Vijay Vasudevan , Jiquan Ngiam , Yuning Chai , Zhifeng Chen , Jonathon Shlens

Semi-supervised 3D object detection (SS3DOD) aims to reduce costly 3D annotations utilizing unlabeled data. Recent studies adopt pseudo-label-based teacher-student frameworks and demonstrate impressive performance. The main challenge of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Taehun Kong , Tae-Kyun Kim

Weakly supervised 3D object detection aims to learn a 3D detector with lower annotation cost, e.g., 2D labels. Unlike prior work which still relies on few accurate 3D annotations, we propose a framework to study how to leverage constraints…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Kuan-Chih Huang , Yi-Hsuan Tsai , Ming-Hsuan Yang

We present a semi-supervised approach that localizes multiple unknown object instances in long videos. We start with a handful of labeled boxes and iteratively learn and label hundreds of thousands of object instances. We propose criteria…

Computer Vision and Pattern Recognition · Computer Science 2015-05-22 Ishan Misra , Abhinav Shrivastava , Martial Hebert

After learning a new object category from image-level annotations (with no object bounding boxes), humans are remarkably good at precisely localizing those objects. However, building good object localizers (i.e., detectors) currently…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Zitian Chen , Zhiqiang Shen , Jiahui Yu , Erik Learned-Miller

Object classification using LiDAR 3D point cloud data is critical for modern applications such as autonomous driving. However, labeling point cloud data is labor-intensive as it requires human annotators to visualize and inspect the 3D data…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Ziwei Wang , Reza Arablouei , Jiajun Liu , Paulo Borges , Greg Bishop-Hurley , Nicholas Heaney

The status quo approach to training object detectors requires expensive bounding box annotations. Our framework takes a markedly different direction: we transfer tracked object boxes from weakly-labeled videos to weakly-labeled images to…

Computer Vision and Pattern Recognition · Computer Science 2016-04-21 Krishna Kumar Singh , Fanyi Xiao , Yong Jae Lee

We propose a method to detect and reconstruct multiple 3D objects from a single RGB image. The key idea is to optimize for detection, alignment and shape jointly over all objects in the RGB image, while focusing on realistic and physically…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Francis Engelmann , Konstantinos Rematas , Bastian Leibe , Vittorio Ferrari

Monocular 3D object detection is an essential task in computer vision, and it has several applications in robotics and virtual reality. However, 3D object detectors are typically trained in a fully supervised way, relying extensively on 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Andreas Lau Hansen , Lukas Wanzeck , Dim P. Papadopoulos