Calibration of advanced visible and near infrared radiometer. - Masanobu Shimada; Hiromi Oaku; Hiroyuki Oguma; Robert O. Green; Yuji Miyachi; Haruhisa Shimoda (IEEE Trans. Geosci. Remote. Sens., 1999)

Use of digital cameras for phenological observations. - Reiko Ide; Hiroyuki Oguma (Ecol. Informatics, 2010)

Applicability of Green-Red Vegetation Index for Remote Sensing of Vegetation Phenology. - Takeshi Motohka; Kenlo Nishida Nasahara; Hiroyuki Oguma; Satoshi Tsuchida (Remote. Sens., 2010)

A cost-effective monitoring method using digital time-lapse cameras for detecting temporal and spatial variations of snowmelt and vegetation phenology in alpine ecosystems. - Reiko Ide; Hiroyuki Oguma (Ecol. Informatics, 2013)

Forest biomass and volume estimation using airborne LiDAR in a cool-temperate forest of northern Hokkaido, Japan. - Kentaro Takagi; Yasumichi Yone; Hiroyuki Takahashi; Rei Sakai; Hajime Hojyo; Tatsuya Kamiura; Mutsumi Nomura; Naishen Liang; Tatsuya Fukazawa; Hisashi Miya; Toshiya Yoshida; Kaichiro Sasa; et al. (Ecol. Informatics, 2015)

Development of a Regional Coral Observation Method by a Fluorescence Imaging LIDAR Installed in a Towable Buoy. - Masahiko Sasano; Motonobu Imasato; Hiroya Yamano; Hiroyuki Oguma (Remote. Sens., 2016)

Animal Detection Using Thermal Images and Its Required Observation Conditions. - Yu Oishi; Hiroyuki Oguma; Ayako Tamura; Ryosuke Nakamura; Tsuneo Matsunaga (Remote. Sens., 2018)

Detecting Moving Wildlife Using the Time Difference between Two Thermal Airborne Images. - Yu Oishi; Natsuki Yoshida; Hiroyuki Oguma (Remote. Sens., 2024)

A simulation based approach for enhancing automatic detection of cicada songs in challenging chorus conditions. - Ryotaro Okamoto; Hiroyuki Oguma (Ecol. Informatics, 2025)