Architecture and Human Environmental Engineering

Academic Staff


Taiichiro ISHIDA

Taiichiro ISHIDA

Professor (Graduate School of Engineering)

Research Topics

We investigate human perception and behaviors in architectural environments focusing on visual aspects such as lighting and colors. We carry out research programs on psychological evaluation and design methods of lighting and colors and explore scientific bases of human-environment relations.


Room 403, Bldg. C2, Katsura Campus
TEL: +81-75-383-2929
FAX: +81-75-383-2929 

Research Topics (Ishida Laboratory)

Evaluation and design of lighting environments based on human visual recognition

( Examples of research theme )

  • Human cognition of lighting environment
  • Evaluating perceptual brightness of a space
  • Lighting design using daylight and artificial lighting
  • Estimating perceptual color of lighting
  • Light adaptation in a practical visual environment
  • Psychological evaluation of lighting environment

Figure 1
An example of luminance measurement for evaluating lighting environment

Evaluation and design of colors in human environments and their scientific basis

( Examples of research theme )

  • Categorical color recognition in a wide range of illuminance levels
  • Visual search in a complex color environment
  • Quantitative approach to visual impression of colors in cityscape
  • Lighting and colors in architecture
  • Psychological images of colors and architectural design
  • Color appearances in an architectural environment
  • Application of the color engineering to colors in architecture

Figure 2
An example of quantitative analysis of colors in cityscape