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Accurately identifying hands in images is a key sub-task for human activity understanding with wearable first-person point-of-view cameras. Traditional hand segmentation approaches rely on a large corpus of manually labeled data to generate…

Computer Vision and Pattern Recognition · Computer Science 2018-06-18 Yubo Zhang , Vishnu Naresh Boddeti , Kris M. Kitani

Fingertip detection plays an important role in human computer interaction. Previous works transform binocular images into depth images. Then depth-based hand pose estimation methods are used to predict 3D positions of fingertips. Different…

Computer Vision and Pattern Recognition · Computer Science 2018-04-27 Yi Wei , Guijin Wang , Cairong Zhang , Hengkai Guo , Xinghao Chen , Huazhong Yang

In Virtual, augmented, and mixed reality, the use of hand gestures is increasingly becoming popular to reduce the difference between the virtual and real world. The precise location of the fingertip is essential/crucial for a seamless…

Computer Vision and Pattern Recognition · Computer Science 2020-05-15 Purnendu Mishra , Kishor Sarawadekar

Tactile and textile skin technologies have become increasingly important for enhancing human-robot interaction and allowing robots to adapt to different environments. Despite notable advancements, there are ongoing challenges in skin signal…

Robotics · Computer Science 2024-04-24 Bo Ying Su , Yuchen Wu , Chengtao Wen , Changliu Liu

Fingerprints have grown to be the most robust and efficient means of biometric identification. Latent fingerprints are commonly found at crime scenes. They are also of the overlapped kind making it harder for identification and thus the…

Computers and Society · Computer Science 2017-10-26 Tejas K , Swathi C , Aravind Kumar D , Rajesh Muthu

Today's touch sensors come in many shapes and sizes. This has made it challenging to develop general-purpose touch processing methods since models are generally tied to one specific sensor design. We address this problem by performing…

Robotics · Computer Science 2024-09-13 Samanta Rodriguez , Yiming Dou , Miquel Oller , Andrew Owens , Nima Fazeli

Fingerprints are widely recognized as one of the most unique and reliable characteristics of human identity. Most modern fingerprint authentication systems rely on contact-based fingerprints, which require the use of fingerprint scanners or…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 M. G. Sarwar Murshed , Syed Konain Abbas , Sandip Purnapatra , Daqing Hou , Faraz Hussain

In this paper, we propose a novel touchless typing interface that makes use of an on-screen QWERTY keyboard and a smartphone camera. The keyboard was divided into nine color-coded clusters. The user moved their head toward clusters, which…

Human-Computer Interaction · Computer Science 2020-10-13 Shivam Rustagi , Aakash Garg , Pranay Raj Anand , Rajesh Kumar , Yaman Kumar , Rajiv Ratn Shah

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

In human-computer interaction, it is important to accurately estimate the hand pose especially fingertips. However, traditional approaches for fingertip localization mainly rely on depth images and thus suffer considerably from the noise…

Computer Vision and Pattern Recognition · Computer Science 2019-02-27 Guijin Wang , Cairong Zhang , Xinghao Chen , Xiangyang Ji , Jing-Hao Xue , Hang Wang

Touch sensing, as a major human/machine interface, is widely used in various commercial products such as smart watches, mobile phones, tablets and TVs. State-of-the-art touch detections are mainly based on mutual capacitive sensing, which…

Emerging Technologies · Computer Science 2017-01-04 Li Du

We propose a fully automatic method for learning gestures on big touch devices in a potentially multi-user context. The goal is to learn general models capable of adapting to different gestures, user styles and hardware variations (e.g.…

Machine Learning · Computer Science 2018-02-28 Quentin Debard , Christian Wolf , Stéphane Canu , Julien Arné

The lack of interpretability of existing CNN-based hand detection methods makes it difficult to understand the rationale behind their predictions. In this paper, we propose a novel neural network model, which introduces interpretability…

Computer Vision and Pattern Recognition · Computer Science 2020-01-20 Dan Liu , Libo Zhang , Tiejian Luo , Lili Tao , Yanjun Wu

Detecting the singular point accurately and efficiently is one of the most important tasks for fingerprint recognition. In recent years, deep learning has been gradually used in the fingerprint singular point detection. However, current…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Liaojun Pang , Jiong Chen , Fei Guo , Zhicheng Cao , Heng Zhao

We present a real-time on-device hand tracking pipeline that predicts hand skeleton from single RGB camera for AR/VR applications. The pipeline consists of two models: 1) a palm detector, 2) a hand landmark model. It's implemented via…

Computer Vision and Pattern Recognition · Computer Science 2020-06-19 Fan Zhang , Valentin Bazarevsky , Andrey Vakunov , Andrei Tkachenka , George Sung , Chuo-Ling Chang , Matthias Grundmann

Incorporating touch as a sensing modality for robots can enable finer and more robust manipulation skills. Existing tactile sensors are either flat, have small sensitive fields or only provide low-resolution signals. In this paper, we…

Robotics · Computer Science 2020-03-17 Akhil Padmanabha , Frederik Ebert , Stephen Tian , Roberto Calandra , Chelsea Finn , Sergey Levine

Grasp planning for multi-fingered hands is computationally expensive due to the joint-contact coupling, surface nonlinearities and high dimensionality, thus is generally not affordable for real-time implementations. Traditional planning…

Robotics · Computer Science 2018-07-31 Yongxiang Fan , Te Tang , Hsien-Chung Lin , Masayoshi Tomizuka

One of the fundamental requirements for an artificial hand to successfully grasp and manipulate an object is to be able to distinguish different objects' shapes and, more specifically, the objects' surface curvatures. In this study, we…

Medical Physics · Physics 2011-09-19 Saba Salehi , John-John Cabibihan , Shuzhi Sam Ge

In order to utilize identification to the best extent, we need robust and fast algorithms and systems to process the data. Having palmprint as a reliable and unique characteristic of every person, we extract and use its features based on…

Computer Vision and Pattern Recognition · Computer Science 2015-02-13 Shervin Minaee , AmirAli Abdolrashidi

This paper presents an algorithm that transforms color visual images, like photographs or paintings, into tactile graphics. In the algorithm, the edges of objects are detected and colors of the objects are estimated. Then, the edges and the…

Graphics · Computer Science 2007-05-23 Artur Rataj