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Visual Cognition Mechanisms Lab (Katsunori Okajima)
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The lab explores how the brain processes information from the five senses, centered on vision, and applies the findings to VR and AR.
AboutAbout the lab
Unraveling how the brain works to create new technologies
The Okajima Lab (Visual Cognition Mechanisms) studies how the brain processes information from the five senses, with a focus on vision.
Using psychophysics, a method that presents stimuli to people and measures their psychological responses, the lab investigates the mechanisms of perception and summarizes them in models.
These findings are applied to the development of virtual reality (VR), augmented reality (AR), information display systems, and more.
The lab also carries out joint research with companies, universities, and research institutes.
Key terms
- Psychophysics
- A research method that presents physical stimuli, such as light or sound, to people and measures their psychological responses in order to infer the mechanisms of sensation.
- Augmented reality
- Also called AR. A technology that overlays computer-generated images on real space.
- Crossmodal
- The way multiple senses, such as vision, hearing, touch, taste, and smell, influence one another as they work.
NewsLab news
Original paper from a joint research project published online in LEUKOS
Paper by a doctoral student published online in Lighting Research & Technology
Paper by a doctoral student published in the Transactions of the Japan Society of Kansei Engineering
A doctoral student received the Outstanding Student Paper Award at ALC2026 (Asia Lighting Conf.)
Peer-reviewed paper by a doctoral student accepted at the international conference ACM SUI2026
ResearchResearch themes
The lab investigates how the human brain processes information received from vision and other senses, and builds models and simulations of that processing. The findings are applied to developing information display systems such as VR and AR, and to evaluating human interfaces.
*Illustrative imageVisual and Image Information Processing
This research applies vision science to image processing and machine learning. The lab also works on image engineering, sensing of Kansei (affective) information, and multidimensional color vision theory.
*Illustrative imageMaterial Perception, Color, and Cognition in the Brain
The lab studies how the brain processes the perception of material qualities, how lighting and color affect Kansei (affective responses), and how multiple senses influence one another.
*Illustrative imageFive-Senses Engineering: Combining Multiple Senses
This research combines vision with somatosensation, hearing, touch, taste, and smell. The lab works on crossmodal food perception, haptic communication, and contactless spatial human interfaces.
*Illustrative imageStudying Perception with VR and AR
The lab conducts perception and cognition experiments using VR and AR, and develops various simulation systems.
MembersFaculty
The Okajima Lab consists of faculty members, research faculty, doctoral and master's students, and undergraduate students doing graduation research.As of 2026
- ProfessorKatsunori Okajima
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “VR headset insert smartphone stereoscopy image” Bert Niehaus / CC BY-SA 4.0 (cropped)
- Visual and Image Information Processing: “Eye iris” che (Please credit as "Petr Novák, Wikipedia" in case you use this outside Wikimedia projects.) / CC BY-SA 2.5 (cropped)
- Material Perception, Color, and Cognition in the Brain: “Orange texture made of a fishing net on a wooden board at golden hour” Basile Morin / CC BY-SA 4.0 (cropped)
- Five-Senses Engineering: Combining Multiple Senses: “The Five Senses - Jacques Linard” GoldenArtists / CC BY 4.0 (cropped)
- Studying Perception with VR and AR: “Virtual Fixtures (Medical Concept 1991) XR2020” Augmented2021 / CC BY-SA 4.0 (cropped)
- Related lab (Shimono Lab (Motion Control Lab)): “Unisim dental training haptics and VR” Tim Sheerman-Chase / CC BY 2.0 (cropped)
- Related lab (Raebiger Lab): “Coloured-transition-metal-solutions” No machine-readable author provided. Benjah-bmm27 assumed (based on copyright claims). / Public domain (cropped)
- Related lab (Kawamura Lab): “Muscovite structure 100” Kent G. Budge / CC0 (cropped)
- Related lab (Katayose Lab): “Observatorio de Rayos Gamma HAWC 1” Marifer Veloz / CC BY-SA 4.0 (cropped)
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