Visual Cognition and Systems

Group Web Site

[ Professor ] Satoshi Shioiri
Visual Cognition and Systems

[ Associate Professor ] Chia-Huei Tseng
Attention and Learning Systems

[ Assistant Professor ] Yasuhiro Hatori

[ Assistant Professor* ] Sai Suno

[ Research Fellow ] Wu Wei

[ Specially Appointed Assistant Professor* ] Yoshiyuki Sato

Research Activities

Human brain is one of the most adaptable systems in the world. Understanding the brain functions is one of the most important issues for evaluating and designing things around us to improve the quality of life. We investigate the brain through visual functions to apply the knowledge to human engineering and image engineering.

Visual Cognition and Systems (Prof. Shioiri)

Research topics

  • Measurements of spatial and temporal characteristics of visual attention.
  • Modeling control system of eye movements and visual attention
  • Investigation of early, middle and late vision of 3D perception.

Modeling the processes of human vision based on the findings of the strategies that the visual system uses, we plan to propose appropriate methods for evaluation of image qualities, efficient way of image presentation and evaluation of visual environments in general. We also investigate dynamic selection process in vision with or without attention to realize prediction system of human perception and action in the future.

We move our eyes several times per second. These fast eye movements, called saccades, create large image shifts on the retina-making our visual system work hard to maintain a stable perceptual world. We found higher visible stimulus cause stronger saccadic suppression. The result indicates that saccadic suppression of motion is an active process for realizing visual stability.

Attention and Learning Systems(Assoc. Prof. Tseng)

Research topics

  • Visual attention mechanisms and models
  • Multi-sensory perception and learning
  • Developmental vision and cognition

My research interests cover the broadly-defined human cognitive functions such as perception, attention, and learning. With psychophysical, neurophysiological, and computational approaches, we try to answer how sensory systems construct a coherent world that we experience and look for applications to enhance human life quality.

Interpersonal communication can be carried out in various forms such as side-by-side walking synchronization, body movements, and facial expressions. We used motion acceleration sensors and trackers, together with psychophysical methods to investigate how implicit signals are communicated.