Like and beyond human vision – Technology the vision
Our lives have become more convenient and enriched by digital cameras, smart phones, and other visual media that abound in the world. However, it is also true that these visual media do not reach our visual function of capturing, encoding, and recognizing visual information. In this project, we aim to crystallize the knowledge obtained in the basic research on vision as “Technology” and tackle various problems such as the following.
When observing objects, the light source is important factor. For example, the appearance of the object changes depending on the spectrum of the light source. In this project, to realize light sources with added value, we are working on the design and development of “functional light sources” that have special functions, such as emphasizing the differences in the colors of arbitrary targets which we want to detect such as auxiliary light sources for detecting foreign objects.
Imaging of invisible information
We obtain much information from visual information. On the other hand, there is also invisible information that is difficult to obtain and quantify by human perception, such as the freshness of food and the fruit’s sugar content. In this project, we seek solutions to various problems by utilizing visualizing invisible information with spectroscopic and fluorescent information.
Study on “Color vision deficiency”
Human color vision differs from each person depending on the distribution of corn cells. Color vision deficiency occurs if one or more types of the three types of cone cells that respond to light near red, green, and blue are weak. People with color vision deficiency have differences in color perception, such as difficulty distinguishing between red and green. It is estimated that about 5% of Japanese males and 0.2% of Japanese females have congenital color vision deficiency. Since only a small number of people have color vision deficiency and difficulty sharing the color perception of others intuitively, for people who do not have color vision deficiency, it is difficult to understand that there are color expressions that are difficult to distinguish for people who have color vision deficiency. In recent years, color information has an important meaning, such as warnings, route maps, and hazard maps. The design and development of filters and light sources that simulate color vision deficiency in this project contribute to understanding color vision deficiency in society and raising awareness of the importance of color universal design.