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Biometric signature verification has been traditionally performed in pen-based office-like scenarios using devices specifically designed for acquiring handwriting. However, the high deployment of devices such as smartphones and tablets has…

Human-Computer Interaction · Computer Science 2020-02-04 Ruben Tolosana , Ruben Vera-Rodriguez , Richard Guest , Julian Fierrez , Javier Ortega-Garcia

Virtual assistants have the potential to play an important role in helping users achieves different tasks. However, these systems face challenges in their real-world usability, characterized by inefficiency and struggles in grasping user…

Human-Computer Interaction · Computer Science 2024-08-15 Minh Duc Vu , Han Wang , Zhuang Li , Jieshan Chen , Shengdong Zhao , Zhenchang Xing , Chunyang Chen

Outbound AI calling systems must distinguish voicemail greetings from live human answers in real time to avoid wasted agent interactions and dropped calls. We present a lightweight approach that extracts 15 temporal features from the speech…

Sound · Computer Science 2026-04-14 Kumar Saurav

The growing sophistication of speech generated by Artificial Intelligence (AI) has introduced new challenges in audio deepfake detection. Text-to-speech (TTS) and voice conversion (VC) technologies can create highly convincing synthetic…

Sound · Computer Science 2026-03-17 Vamshi Nallaguntla , Aishwarya Fursule , Shruti Kshirsagar , Anderson R. Avila

The rapid advancement of fake voice generation technology has ignited a race with detection systems, creating an urgent need to secure the audio ecosystem. However, existing benchmarks suffer from a critical limitation: they typically…

Sound · Computer Science 2025-10-20 Xutao Mao , Ke Li , Cameron Baird , Ezra Xuanru Tao , Dan Lin

Biometrics are widely used for authentication in consumer devices and business settings as they provide sufficiently strong security, instant verification and convenience for users. However, biometrics are hard to keep secret, stolen…

Cryptography and Security · Computer Science 2018-08-22 Mozhgan Azimpourkivi , Umut Topkara , Bogdan Carbunar

Generating 3D human gestures and speech from a text script is critical for creating realistic talking avatars. One solution is to leverage separate pipelines for text-to-speech (TTS) and speech-to-gesture (STG), but this approach suffers…

Multimedia · Computer Science 2024-09-26 Zixin Guo , Jian Zhang

Previous research about sensor based attacks on Android platform focused mainly on accessing or controlling over sensitive device components, such as camera, microphone and GPS. These approaches get data from sensors directly and need…

Cryptography and Security · Computer Science 2014-07-21 Wenrui Diao , Xiangyu Liu , Zhe Zhou , Kehuan Zhang

In a biometric system, each biometric sample or template is typically associated with a single identity. However, recent research has demonstrated the possibility of generating "morph" biometric samples that can successfully match more than…

Sound · Computer Science 2023-09-06 Sushanta K. Pani , Anurag Chowdhury , Morgan Sandler , Arun Ross

This work proposes and analyzes the use of keystroke biometrics for content de-anonymization. Fake news have become a powerful tool to manipulate public opinion, especially during major events. In particular, the massive spread of fake news…

Cryptography and Security · Computer Science 2020-05-19 Aythami Morales , Alejandro Acien , Julian Fierrez , John V. Monaco , Ruben Tolosana , Ruben Vera-Rodriguez , Javier Ortega-Garcia

Inaudible voice command injection is one of the most threatening attacks towards voice assistants. Existing attacks aim at injecting the attack signals over the air, but they require the access to the authorized user's voice for activating…

Cryptography and Security · Computer Science 2022-02-11 Yuanda Wang , Hanqing Guo , Qiben Yan

Automatic speech verification (ASV) is the technology to determine the identity of a person based on their voice. While being convenient for identity verification, we should aim for the highest system security standard given that it is the…

Machine Learning · Computer Science 2020-12-16 Shentong Mo , Haofan Wang , Pinxu Ren , Ta-Chung Chi

In an organization, individuals prefer to form various formal and informal groups for mutual interactions. Therefore, ubiquitous identification of such groups and understanding their dynamics are important to monitor activities, behaviours…

Social and Information Networks · Computer Science 2022-04-19 Snigdha Das , Soumyajit Chatterjee , Sandip Chakraborty , Bivas Mitra

It is estimated that around 70 million people worldwide are affected by a speech disorder called stuttering. With recent advances in Automatic Speech Recognition (ASR), voice assistants are increasingly useful in our everyday lives. Many…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-14 Olabanji Shonibare , Xiaosu Tong , Venkatesh Ravichandran

Automatic speaker verification (ASV) is the process to recognize persons using voice as biometric. The ASV systems show considerable recognition performance with sufficient amount of speech from matched condition. One of the crucial…

Multimedia · Computer Science 2018-12-04 Arnab Poddar , Md Sahidullah , Goutam Saha

Automatic speaker verification (ASV) is a well developed technology for biometric identification, and has been ubiquitous implemented in security-critic applications, such as banking and access control. However, previous works have shown…

Machine Learning · Computer Science 2021-07-20 Haibin Wu , Yang Zhang , Zhiyong Wu , Dong Wang , Hung-yi Lee

Voice authentication has become an integral part in security-critical operations, such as bank transactions and call center conversations. The vulnerability of automatic speaker verification systems (ASVs) to spoofing attacks instigated the…

Cryptography and Security · Computer Science 2021-08-02 Andre Kassis , Urs Hengartner

Thanks to advancements in deep learning, speech generation systems now power a variety of real-world applications, such as text-to-speech for individuals with speech disorders, voice chatbots in call centers, cross-linguistic speech…

Accurately estimating hand pose and hand-object contact events is essential for robot data-collection, immersive virtual environments, and biomechanical analysis, yet remains challenging due to visual occlusion, subtle contact cues,…

Human-Computer Interaction · Computer Science 2025-08-25 Yuemin Mao , Uksang Yoo , Yunchao Yao , Shahram Najam Syed , Luca Bondi , Jonathan Francis , Jean Oh , Jeffrey Ichnowski

Smartphones and tablets have become ubiquitous in our daily lives. Smartphones, in particular, have become more than personal assistants. These devices have provided new avenues for consumers to play, work, and socialize whenever and…

Cryptography and Security · Computer Science 2019-11-12 Abdulaziz Alzubaidi , Jugal Kalita