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Global point cloud registration is an essential module for localization, of which the main difficulty exists in estimating the rotation globally without initial value. With the aid of gravity alignment, the degree of freedom in point cloud…

Robotics · Computer Science 2022-03-03 Xiaqing Ding , Xuecheng Xu , Sha Lu , Yanmei Jiao , Mengwen Tan , Rong Xiong , Huanjun Deng , Mingyang Li , Yue Wang

This paper addresses the task of estimating the 6 degrees of freedom pose of a known 3D object from depth information represented by a point cloud. Deep features learned by convolutional neural networks from color information have been the…

Computer Vision and Pattern Recognition · Computer Science 2020-01-27 Ge Gao , Mikko Lauri , Yulong Wang , Xiaolin Hu , Jianwei Zhang , Simone Frintrop

This paper proposes a novel contact and wearable sensing system for estimating the upper body posture and joint angles (ankle, knee, and hip) of the human body using foot pressure distribution information obtained from a sensor attached to…

Human-Computer Interaction · Computer Science 2024-01-24 Yo Kobayashi , Yasutaka Nakashima

Recent advancements in lidar technology have led to improved point cloud resolution as well as the generation of 360 degrees, low-resolution images by encoding depth, reflectivity, or near-infrared light within each pixel. These images…

Robotics · Computer Science 2025-05-06 Sier Ha , Honghao Du , Xianjia Yu , Tomi Westerlund

A user's eyes provide means for Human Computer Interaction (HCI) research as an important modal. The time to time scientific explorations of the eye has already seen an upsurge of the benefits in HCI applications from gaze estimation to the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Atul Sahay , Imon Mukherjee , Kavi Arya

This paper presents novel hybrid architectures that combine grid- and point-based processing to improve the detection performance and orientation estimation of radar-based object detection networks. Purely grid-based detection models…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Michael Ulrich , Sascha Braun , Daniel Köhler , Daniel Niederlöhner , Florian Faion , Claudius Gläser , Holger Blume

The use of infrastructure sensor technology for traffic detection has already been proven several times. However, extrinsic sensor calibration is still a challenge for the operator. While previous approaches are unable to calibrate the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Laurent Kloeker , Christian Kotulla , Lutz Eckstein

Estimating pose of the head is an important preprocessing step in many pattern recognition and computer vision systems such as face recognition. Since the performance of the face recognition systems is greatly affected by the poses of the…

Computer Vision and Pattern Recognition · Computer Science 2012-05-15 Mohammad Tofighi , Hashem Kalbkhani , Mahrokh G. Shayesteh , Mehdi Ghasemzadeh

For human-centric large-scale scenes, fine-grained modeling for 3D human global pose and shape is significant for scene understanding and can benefit many real-world applications. In this paper, we present LiveHPS, a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Yiming Ren , Xiao Han , Chengfeng Zhao , Jingya Wang , Lan Xu , Jingyi Yu , Yuexin Ma

In this paper, we propose an advanced methodology for the detection of 3D objects and precise estimation of their spatial positions from a single image. Unlike conventional frameworks that rely solely on center-point and dimension…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Dhyey Manish Rajani , Surya Pratap Singh , Rahul Kashyap Swayampakula

Controlling hand exoskeletons for assisting impaired patients in grasping tasks is challenging because it is difficult to infer user intent. We hypothesize that majority of daily grasping tasks fall into a small set of categories or modes…

Robotics · Computer Science 2024-11-14 Jackson M. Steinkamp , Laura J. Brattain , Conor J. Walsh , Robert D. Howe

In this paper, we introduce HEADS-UP, the first egocentric dataset collected from head-mounted cameras, designed specifically for trajectory prediction in blind assistance systems. With the growing population of blind and visually impaired…

Balancing cost and performance is crucial when choosing high- versus low-resolution point-cloud roadside sensors. For example, LiDAR delivers dense point cloud, while 4D millimeter-wave radar, though spatially sparser, embeds velocity cues…

Robotics · Computer Science 2025-05-06 Shaozu Ding , Yihong Tang , Marco De Vincenzi , Dajiang Suo

3D human pose estimation captures the human joint points in three-dimensional space while keeping the depth information and physical structure. That is essential for applications that require precise pose information, such as human-computer…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Jianbin Jiao , Xina Cheng , Weijie Chen , Xiaoting Yin , Hao Shi , Kailun Yang

3D object detection aims to predict object centers, dimensions, and rotations from LiDAR point clouds. Despite its simplicity, LiDAR captures only the near side of objects, making center-based detectors prone to poor localization accuracy…

Computer Vision and Pattern Recognition · Computer Science 2025-04-04 Ruixiao Zhang , Runwei Guan , Xiangyu Chen , Adam Prugel-Bennett , Xiaohao Cai

We address a problem of estimating pose of a person's head from its RGB image. The employment of CNNs for the problem has contributed to significant improvement in accuracy in recent works. However, we show that the following two methods,…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Mingzhen Shao , Zhun Sun , Mete Ozay , Takayuki Okatani

Object re-identification (ReID) from images plays a critical role in application domains of image retrieval (surveillance, retail analytics, etc.) and multi-object tracking (autonomous driving, robotics, etc.). However, systems that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Benjamin Thérien , Chengjie Huang , Adrian Chow , Krzysztof Czarnecki

Pose estimation purely based on 3D point-cloud could suffer from degradation, e.g. scan blocks or scans in repetitive environments. To deal with this problem, we propose an approach for fusing 3D spinning LiDAR and IMU to estimate the…

Robotics · Computer Science 2017-10-20 Haoyang Ye , Ming Liu

Effective assisted living environments must be able to perform inferences on how their occupants interact with one another as well as with surrounding objects. To accomplish this goal using a vision-based automated approach, multiple tasks…

Computer Vision and Pattern Recognition · Computer Science 2019-09-23 Philipe A. Dias , Damiano Malafronte , Henry Medeiros , Francesca Odone

Head pose estimation plays a vital role in various applications, e.g., driverassistance systems, human-computer interaction, virtual reality technology, and so on. We propose a novel geometry based algorithm for accurately estimating the…

Computer Vision and Pattern Recognition · Computer Science 2020-01-06 Hui Yuan , Mengyu Li , Junhui Hou , Jimin Xiao