Detecting cultural differences using consumer-generated geotagged photos. - Keiji Yanai; Keita Yaegashi; Bingyu Qiu (LocWeb, 2009)

Can Geotags Help Image Recognition?. - Keita Yaegashi; Keiji Yanai (PSIVT, 2009)

Geotagged Image Recognition by Combining Three Different Kinds of Geolocation Features. - Keita Yaegashi; Keiji Yanai (ACCV (2), 2010)

Geotagged Photo Recognition Using Corresponding Aerial Photos with Multiple Kernel Learning. - Keita Yaegashi; Keiji Yanai (ICPR, 2010)

Image Decolorization by Maximally Preserving Color Contrast. - Alex Yong Sang Chia; Keita Yaegashi; Soh Masuko (ICPRAM, 2014)

Preserving Maximum Color Contrast in Generation of Gray Images. - Alex Yong Sang Chia; Keita Yaegashi; Soh Masuko (ICPRAM (Selected Papers), 2014)