BP4D: 4D Spontaneous Facial Expression Database
4D Spontaneous Facial Expression Database
Background:
Because posed and un-posed (aka “spontaneous”) 3D facial expressions differ along several dimensions including complexity and timing, well-annotated 3D video of un-posed facial behavior is needed. The BP4D dataset comprises videos of spontaneous facial expressions in a diverse...
Published: 3/27/2026
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Inventor(s): Lijun Yin
Keywords(s): #SUNYresearch, Technologies
Category(s): Technology Classifications > Artificial Intelligence, Campus > Binghamton University
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BP4D+ Multimodal Emotion Dataset for Realistic AI Emotion Recognition
This invention introduces BP4D+, a large scale multimodal spontaneous emotion dataset integrating synchronized 3D facial dynamics, 2D video, thermal imaging, and physiological signals. Designed for real world affective computing, it enables accurate training and benchmarking of AI systems that recognize authentic human emotion.
Background:
Emotion...
Published: 3/26/2026
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Inventor(s): Lijun Yin
Keywords(s): #SUNYresearch, Technologies
Category(s): Technology Classifications > Information Technology, Campus > Binghamton University
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FakeCatcher: Detection of Synthetic Portrait Videos using Biological Signals
Novel algorithm uses biological signals to determine the authenticity of videos
Background:
In recent years, technology development of deep learning has advanced to the level of high realism in creating synthetic videos. Such deep fake videos pose a big threat to video authentication for security, safety, privacy protection, as well as health-care...
Published: 3/25/2026
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Inventor(s): Umur Ciftci, Lijun Yin, Ilke Demir
Keywords(s): #SUNYresearch, Tech, Technologies
Category(s): Campus > Binghamton University, Technology Classifications > Artificial Intelligence
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Multimodal AI Dataset for Emotion and Heart Rate Recognition in Real-World Conditions
This invention introduces the MMSE HR dataset along with a Self Adaptive Matrix Completion algorithm for remote heart rate estimation from facial videos in natural conditions. By combining synchronized spontaneous expression data with physiological signals, it enables accurate, non contact heart rate measurement and real time emotion analysis for robust...
Published: 3/27/2026
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Inventor(s): Lijun Yin
Keywords(s): #SUNYresearch, Technologies
Category(s): Technology Classifications > Artificial Intelligence, Technology Classifications > Healthcare IT, Campus > Binghamton University
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Heart Rate Estimation from Face Videos
Usingaself-adaptive matrix heart rate etimation from face videos is improved.
Background:
Recent studies in computer vision have shown that, while practically invisible to a human observer, skin color changes due to blood flow can be captured on face videos and be used to estimate the heart rate (HR). These subtle changes encompass both color...
Published: 11/12/2025
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Inventor(s): Lijun Yin
Keywords(s): #SUNYresearch, Technologies
Category(s): Technology Classifications > Diagnostics, Technology Classifications > Computers, Campus > Binghamton University
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Dual-Camera 3D Finger Pointing Recognition for Intuitive Device Control
This invention enables accurate, real-time 3D finger pointing detection using only two standard cameras, providing developers and system integrators a reliable, hands-free human-machine interaction solution. By combining dual-camera imaging, orientation-invariant hand detection, and robust feature tracking, the system delivers sub-5° pointing accuracy...
Published: 5/10/2026
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Inventor(s): Lijun Yin, Shaun Canavan, Kaoning Hu
Keywords(s): #SUNYresearch, Technologies
Category(s): Technology Classifications > Computers, Campus > Binghamton University
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Head-Free, Real-Time Eye Tracking for Natural Human-Computer Interaction
This invention enables real-time eye tracking for natural human-computer interaction using only two standard cameras and no special equipment. By combining a fixed wide-angle camera with an active pan-tilt-zoom camera and novel 3D eyeball calibration, the system provides accurate gaze estimation under natural head movement, offering a practical, low-cost...
Published: 5/10/2026
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Inventor(s): Lijun Yin, Michael Reale
Keywords(s): #SUNYresearch, Technologies
Category(s): Technology Classifications > Computers, Campus > Binghamton University
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