Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Shoji Sunaga Last modified date:2021.04.13

Professor / Perceptual Psychology / Department of Human Science / Faculty of Design

1. Satoshi Hano, Shoji Sunaga, Maya Nakamuta, , Application of a New Color Universal Design Method Based on the Color Appearance of Dichromats to a Campus Map, , International Symposium on Electronic Imaging , 2021.01.
2. Rachapoom Punsongserm, Shoji Sunaga, and Hisayasu Ihara, , Effectiveness of the homologous Thai letterforms on visibility under a simulated condition of low visual acuity, Typography Day 2018, 2018.03.
3. Shoji Sunaga, Haruka Oide, and Shigehito Katsura, Color conspicuity in dichromats, Fechner Day 2017, The 33rd Annual Meeting of the International Society for Psychophysics, 2017.10.
4. Tomomi Koizumi, Hiroyuki Ito, Shoji Sunaga, Masaki Ogawa, Effect of Body Posture on the Interpretation of Cast Shadows, The 31st International Congress of Psychology, 2016.07.
5. Rachapoom PUNSONGSERM, Shoji SUNAGA, Hisayasu IHARA, The Typeface Priority of Thai Characters for Identification, 日本デザイン学会 第5支部 平成27年度研究発表会, 2015.10.
6. Tomomi Koizumi, Hiroyuki ITO, Shoji Sunaga, Masaki Ogawa, Directional bias in the perception of cast shadows, 11th Asia-Pacific Conference on Vision, 2015.07.
7. Yuka Yamauchi, Minayo Motokawa, Masayuki Sato, Shoji Sunaga, Chromatic adaptation in the peripheral visual field, European Conference on Visual Perception, 2014.08, It is well-known that chromatic adaptation in the central visual field shifts color appearance of the following target in the opposite direction to the adaptation stimulus. However, the property of chromatic adaptation in the peripheral visual field is not clear. In the present study, we measured apparent color after chromatic adaptation in the peripheral visual field using a matching method. The eccentricities of the test stimulus were 0, 2.5, 5, 10 deg in the nasal visual field. The adaptation stimulus was a saturated purple (u'=0.2096, v'=0.2126) and its luminance was 6 cd/m2. Test stimuli were 9 colors (a dominant wavelength of 571 nm, 575 nm, or 579 nm and an excitation purity of 0.21, 0.45, or 0.71) and a white (D65). Their luminances were 15 cd/m2. A matching stimulus was presented at the eccentricity of 1.5 deg in the temporal visual field. Nine observers participated in the experiments. After chromatic adaptation the test stimuli in the peripheral visual field appeared reddish while color appearance in the central visual field shifted in the opposite direction to the adaptation stimulus. These results suggest that there are multiple adapted mechanisms and that these mechanisms differently contribute to color appearance across retinal eccentricities..
8. Wataru Nakashima, Shoji Sunaga, Seno Takeharu, Naoyuki Oi, Investigation of Sprcral Power Distributions of LED Light sources to Provide Preferred Colored of Natural Objects , AIC colour, 2013.07.
9. Shoji Sunaga, Tomomi Ogura, Takeharu Seno, Test of dichromatic simulation by visual search paradigm, European Conference on Visual Perception, 2012.09,
10. Masayuki Sato, Shoji Sunaga, Spatiotemporal characteristics of binocular disparity channels for very large depth, European Conference on Visual Perception, 2012.09,

11. Examination of lighting in the office lobby for a nap.
12. Production of Lighting System with 8 Primaries of Colored LEDs and Automatic Setting of Lighting Properties.
13. Investigation of the effect of texture information on memory color.
14. Development of Color Universal Design Tool that Proposes .
15. The Evaluation of Dichromatic Simulation with a Visual Search Task.
16. Visual Field Dependency of Depth from Binocular Disparity.