Automated Deception Detection from Videos: Using End-to-End Learning
  Based High-Level Features and Classification Approaches
Laslo Dinges Marc-André Fiedler Ayoub Al-Hamadi Thorsten Hempel Ahmed Abdelrahman Joachim Weimann Dmitri Bershadskyy
Deception detection is an interdisciplinary field attracting researchers from
psychology, criminology, computer science, and economics. We propose a
multimodal approach combining deep learning and discriminative models for
automated deception detection. Using video modalities, we employ convolutional
end-to-end learning to analyze gaze, head pose, and facial expressions,
achieving promising results compared to state-of-the-art methods. Due to
limited training data, we also utilize discriminative models for deception
detection. Although sequence-to-class approaches are explored, discriminative
models outperform them due to data scarcity. Our approach is evaluated on five
datasets, including a new Rolling-Dice Experiment motivated by economic
factors. Results indicate that facial expressions outperform gaze and head
pose, and combining modalities with feature selection enhances detection
performance. Differences in expressed features across datasets emphasize the
importance of scenario-specific training data and the influence of context on
deceptive behavior. Cross-dataset experiments reinforce these findings. Despite
the challenges posed by low-stake datasets, including the Rolling-Dice
Experiment, deception detection performance exceeds chance levels. Our proposed
multimodal approach and comprehensive evaluation shed light on the potential of
automating deception detection from video modalities, opening avenues for
future research.