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In this thesis a new approach for touch detection on optical multi-touch devices is proposed that exploits the fact that the camera images reveal not only the actual touch points but also objects above the screen such as the hand or arm of…

Computer Vision and Pattern Recognition · Computer Science 2013-01-09 Philipp Ewerling

Elastic distortion of fingerprints has a negative effect on the performance of fingerprint recognition systems. This negative effect brings inconvenience to users in authentication applications. However, in the negative recognition scenario…

Computer Vision and Pattern Recognition · Computer Science 2018-01-08 Ali Dabouei , Hadi Kazemi , Seyed Mehdi Iranmanesh , Jeremi Dawson , Nasser M. Nasrabadi

This paper proposes a method for hand pose estimation from RGB images that uses both external large-scale depth image datasets and paired depth and RGB images as privileged information at training time. We show that providing depth…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Shanxin Yuan , Bjorn Stenger , Tae-Kyun Kim

This work addresses the challenging problem of unconstrained 3D hand pose estimation using monocular RGB images. Most of the existing approaches assume some prior knowledge of hand (such as hand locations and side information) is available…

Computer Vision and Pattern Recognition · Computer Science 2019-12-02 Sanjeev Sharma , Shaoli Huang , Dacheng Tao

Fingerprints are one of the most copious evidence in a crime scene and, for this reason, they are frequently used by law enforcement for identification of individuals. But fingerprints can be altered. "Altered fingerprints", refers to…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Oliver Giudice , Mattia Litrico , Sebastiano Battiato

Distortion of the fingerprint images leads to a decline in fingerprint recognition performance, and fingerprint registration can mitigate this distortion issue by accurately aligning two fingerprint images. Currently, fingerprint…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Yuwei Jia , Zhe Cui , Fei Su

This paper presents a nonlinear location estimation to infer the position of a user holding a smartphone. We consider a large location with $M$ number of grid points, each grid point is labeled with a unique fingerprint consisting of the…

Networking and Internet Architecture · Computer Science 2022-04-11 Pai Chet Ng , Petros Spachos , James She , Konstantinos N. Plataniotis

The study of dexterous manipulation has provided important insights in humans sensorimotor control as well as inspiration for manipulation strategies in robotic hands. Previous work focused on experimental environment with restrictions.…

Robotics · Computer Science 2019-09-13 Nutan Chen , Göran Westling , Benoni B. Edin , Patrick van der Smagt

We propose a method for human pose estimation based on Deep Neural Networks (DNNs). The pose estimation is formulated as a DNN-based regression problem towards body joints. We present a cascade of such DNN regressors which results in high…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Alexander Toshev , Christian Szegedy

3D hand pose estimation has received a lot of attention for its wide range of applications and has made great progress owing to the development of deep learning. Existing approaches mainly consider different input modalities and settings,…

Computer Vision and Pattern Recognition · Computer Science 2020-01-01 Kuo-Wei Lee , Shih-Hung Liu , Hwann-Tzong Chen , Koichi Ito

In this paper, we propose a new architecture called Adaptive Graphical Model Network (AGMN) to tackle the task of 2D hand pose estimation from a monocular RGB image. The AGMN consists of two branches of deep convolutional neural networks…

Computer Vision and Pattern Recognition · Computer Science 2023-05-01 Deying Kong , Yifei Chen , Haoyu Ma , Xiangyi Yan , Xiaohui Xie

State-of-the-art single depth image-based 3D hand pose estimation methods are based on dense predictions, including voxel-to-voxel predictions, point-to-point regression, and pixel-wise estimations. Despite the good performance, those…

Computer Vision and Pattern Recognition · Computer Science 2020-07-13 Linpu Fang , Xingyan Liu , Li Liu , Hang Xu , Wenxiong Kang

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

3D hand pose estimation has garnered great attention in recent years due to its critical applications in human-computer interaction, virtual reality, and related fields. The accurate estimation of hand joints is essential for high-quality…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Bolun Zheng , Xinjie Liu , Qianyu Zhang , Canjin Wang , Fangni Chen , Mingen Xu

Accurate in-hand pose estimation is crucial for robotic object manipulation, but visual occlusion remains a major challenge for vision-based approaches. This paper presents an approach to robotic in-hand object pose estimation, combining…

Robotics · Computer Science 2025-06-13 Felix Nonnengießer , Alap Kshirsagar , Boris Belousov , Jan Peters

We address the visual relocalization problem of predicting the location and camera orientation or pose (6DOF) of the given input scene. We propose a method based on how humans determine their location using the visible landmarks. We define…

Computer Vision and Pattern Recognition · Computer Science 2018-11-13 Soham Saha , Girish Varma , C. V. Jawahar

3D interacting hand pose estimation from a single RGB image is a challenging task, due to serious self-occlusion and inter-occlusion towards hands, confusing similar appearance patterns between 2 hands, ill-posed joint position mapping from…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Changlong Jiang , Yang Xiao , Cunlin Wu , Mingyang Zhang , Jinghong Zheng , Zhiguo Cao , Joey Tianyi Zhou

The dynamic hand gesture recognition task has seen studies on various unimodal and multimodal methods. Previously, researchers have explored depth and 2D-skeleton-based multimodal fusion CRNNs (Convolutional Recurrent Neural Networks) but…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Hasan Mahmud , Mashrur M. Morshed , Md. Kamrul Hasan

In robot-assisted laparoscopic radical prostatectomy (RALP), the location of the instrument tip is important to register the ultrasound frame with the laparoscopic camera frame. A long-standing limitation is that the instrument tip position…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Zijian Wu , Shuojue Yang , Yueming Jin , Septimiu E Salcudean

Fingerprints are the most widely deployed form of biometric identification. No two individuals share the same fingerprint because they have unique biometric identifiers. This paper presents an efficient fingerprint verification algorithm…

Computer Vision and Pattern Recognition · Computer Science 2018-12-11 Rahul Kumar Jaiswal , Gaurav Saxena