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Hiroyuki Kubo

4 accepted papers

2018

Time-Resolved Light Transport Decomposition for Thermal Photometric Stereo

Kenichiro Tanaka, Nobuhiro Ikeya, Tsuyoshi Takatani, Hiroyuki Kubo, Takuya Funatomi, Yasuhiro Mukaigawa
CVPR 2018poster

We present a novel time-resolved light transport decomposition method using thermal imaging. Because the speed of heat propagation is much slower than the speed of light propagation, transient transport of far infrared light can be observed at a video frame rate. A key observation is that the therma…

Cited by 8Source ↗PDF ↗Scholar ↗
2017

Material Classification Using Frequency- and Depth-Dependent Time-Of-Flight Distortion

Kenichiro Tanaka, Yasuhiro Mukaigawa, Takuya Funatomi, Hiroyuki Kubo, Yasuyuki Matsushita, Yasushi Yagi
CVPR 2017poster

This paper presents a material classification method using an off-the-shelf Time-of-Flight (ToF) camera. We use a key observation that the depth measurement by a ToF camera is distorted in objects with certain materials, especially with translucent materials. We show that this distortion is caused b…

Cited by 44PDF ↗Scholar ↗
2016

Recovering Transparent Shape From Time-Of-Flight Distortion

Kenichiro Tanaka, Yasuhiro Mukaigawa, Hiroyuki Kubo, Yasuyuki Matsushita, Yasushi Yagi
CVPR 2016poster

This paper presents a method for recovering shape and normal of a transparent object from a single viewpoint using a Time-of-Flight (ToF) camera. Our method is built upon the fact that the speed of light varies with the refractive index of the medium and therefore the depth measurement of a transpar…

Cited by 60PDF ↗Scholar ↗
2015

Recovering Inner Slices of Translucent Objects by Multi-Frequency Illumination

Kenichiro Tanaka, Yasuhiro Mukaigawa, Hiroyuki Kubo, Yasuyuki Matsushita, Yasushi Yagi
CVPR 2015poster

This paper describes a method for recovering appearance of inner slices of translucent objects. The outer appearance of translucent objects is a summation of the appearance of slices at all depths, where each slice is blurred by depth-dependent point spread functions (PSFs). By exploiting the differ…

Cited by 22Source ↗PDF ↗Scholar ↗