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We present a method for estimating detailed scene illumination using human faces in a single image. In contrast to previous works that estimate lighting in terms of low-order basis functions or distant point lights, our technique estimates…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Renjiao Yi , Chenyang Zhu , Ping Tan , Stephen Lin

This Paper describes a hand geometry biometric identification system. We have acquired a database of 22 people using a conventional document scanner. The experimental section consists of a study about the discrimination capability of…

Computer Vision and Pattern Recognition · Computer Science 2022-04-11 Marcos Faundez-Zanuy , Guillermo Mar Navarro Mérida

Although recent years have witnessed significant advancements in image editing thanks to the remarkable progress of text-to-image diffusion models, the problem of non-rigid image editing still presents its complexities and challenges.…

Computer Vision and Pattern Recognition · Computer Science 2024-06-26 Aoyang Liu , Qingnan Fan , Shuai Qin , Hong Gu , Yansong Tang

During a conversation, our brain is responsible for combining information obtained from multiple senses in order to improve our ability to understand the message we are perceiving. Different studies have shown the importance of presenting…

Computer Vision and Pattern Recognition · Computer Science 2023-11-22 David Gimeno-Gómez , Carlos-D. Martínez-Hinarejos

Psychophysical studies suggest that face recognition takes place in a narrow band of low spatial frequencies (``critical band''). Here, we examined the recognition performance of an artificial face recognition system as a function of the…

Neurons and Cognition · Quantitative Biology 2007-05-23 Matthias S. Keil , Agata Lapedriza , David Masip , Jordi Vitria

In this project, we worked on speech recognition, specifically predicting individual words based on both the video frames and audio. Empowered by convolutional neural networks, the recent speech recognition and lip reading models are…

Computer Vision and Pattern Recognition · Computer Science 2018-12-27 Devesh Walawalkar , Yihui He , Rohit Pillai

In this work, we explore the features that are used by humans and by convolutional neural networks (ConvNets) to classify faces. We use Guided Backpropagation (GB) to visualize the facial features that influence the output of a ConvNet the…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Shanmeng Sun , Wei Zhen Teoh , Michael Guerzhoy

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

Eyelid shape is integral to identity and likeness in human facial modeling. Human eyelids are diverse in appearance with varied skin fold and epicanthal fold morphology between individuals. Existing parametric face models express eyelid…

Graphics · Computer Science 2024-10-18 Lohit Petikam , Charlie Hewitt , Fatemeh Saleh , Tadas Baltrušaitis

Independent Sign Language Recognition is a complex visual recognition problem that combines several challenging tasks of Computer Vision due to the necessity to exploit and fuse information from hand gestures, body features and facial…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Agelos Kratimenos , Georgios Pavlakos , Petros Maragos

For machines to lipread, or understand speech from lip movement, they decode lip-motions (known as visemes) into the spoken sounds. We investigate the visual speech channel to further our understanding of visemes. This has applications…

Computer Vision and Pattern Recognition · Computer Science 2018-04-26 Helen L Bear

We propose CHiLL (Crafting High-Level Latents), an approach for natural-language specification of features for linear models. CHiLL prompts LLMs with expert-crafted queries to generate interpretable features from health records. The…

Computation and Language · Computer Science 2023-10-23 Denis Jered McInerney , Geoffrey Young , Jan-Willem van de Meent , Byron C. Wallace

In the domain of music and sound processing, pitch extraction plays a pivotal role. Our research presents a specialized convolutional neural network designed for pitch extraction, particularly from the human singing voice in acapella…

Sound · Computer Science 2023-12-19 Jeremy Cochoy

Fingertips detection has been used in many applications, and it is very popular and commonly used in the area of Human Computer Interaction these days. This paper presents a novel time efficient method that will lead to fingertip detection…

Computer Vision and Pattern Recognition · Computer Science 2015-03-13 Jagdish Lal Raheja , Karen Das , Ankit Chaudhary

We describe a minimally-supervised method for computing a statistical shape space model of the palate surface. The model is created from a corpus of volumetric magnetic resonance imaging (MRI) scans collected from 12 speakers. We extract a…

Computer Vision and Pattern Recognition · Computer Science 2016-02-25 Alexander Hewer , Ingmar Steiner , Timo Bolkart , Stefanie Wuhrer , Korin Richmond

We propose the use of a self-oscillating dynamical system --the pre-Galileian clock equation-- for modeling the laryngeal tone. The parameters are shown to be the minimal control needed for generating the prosody of the human speech. Based…

Biological Physics · Physics 2009-11-10 Roberto D'Autilia

Arabic language is one of the most popular languages in the world. Hundreds of millions of people in many countries around the world speak Arabic as their native speaking. However, due to complexity of Arabic language, recognition of…

Computer Vision and Pattern Recognition · Computer Science 2017-02-07 Ashraf A. Shahin

Smiles play a vital role in the understanding of social interactions within different communities, and reveal the physical state of mind of people in both real and deceptive ways. Several methods have been proposed to recognize spontaneous…

Computer Vision and Pattern Recognition · Computer Science 2020-10-08 Yan Yang , Md Zakir Hossain , Tom Gedeon , Shafin Rahman

Medieval paper, a handmade product, is made with a mould which leaves an indelible imprint on the sheet of paper. This imprint includes chain lines, laid lines and watermarks which are often visible on the sheet. Extracting these features…

Computer Vision and Pattern Recognition · Computer Science 2023-03-08 Tamara G. Grossmann , Carola-Bibiane Schönlieb , Orietta Da Rold

This work presents the first survey on fingerprint pore detection. The survey provides a general overview of the field and discusses methods, datasets, and evaluation protocols. We also present a baseline method inspired on the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Azim Ibragimov , Mauricio Pamplona Segundo