Conference Activities & Talks -

Semi-Parametric Color Reproduction Method for Optical See-Through Head-Mounted Displays (Invited)

Yuta Itoh, Maksym Dzitsiuk, Toshiyuki Amano, Gudrun Klinker  [Invited]

画像の認識・理解シンポジウム 2016 招待講演  2016.08.07  

光学フィードバックを用いた見かけの質感操作および構造色提示

天野敏之  [Invited]

Optics Design  2016.07.15  

色彩や質感が変化！光投影による見かけの操作

天野敏之  [Invited]

ワダイノカフェ  2016.06.16  

プロジェクションによる適応的な質感操作から意図の拡張へ

天野敏之  [Invited]

画像センシングシンポジウムSSII2016  2016.06.08  

New Evaluation Method of the Appearance Control Using the Camera and Projector Optical System

石川 貴史, 前田 擁平, 池田 佑輔, 牛田 俊, 天野 敏之

システム制御情報学会研究発表講演会講演論文集  2016.05.25  

Intention Augmentation in Calligraphy Work with Light Projection

山本豪志朗, 天野敏之

映像情報メディア学会技術報告  2016.03.02  

　View Summary

Calligraphy work shows various expressions by using shades of the ink and textures of the papers, although the appearance seems to be just black and white at a glance. This appearance acts as the only interface through which calligraphers can express their intention to appreciators. At exhibition places, such as museums or galleries, lighting is an important element to prepare the best appearance for displaying these art works. In this study, we apply a projector-camera system as novel lighting for exhibitions instead of conventional lighting. The camera captures delicate expressions of the calligraphy work and the light projection enhances the expressions. First, we extracted kansei words from calligraphy evaluations by professionals, then we made a positioning map. Second, we conducted experiments to find projection modes corresponding to parts of the map using real calligraphy works. Finally, we discussed "Intention Augmentation" exemplified by our novel lighting for exhibitions.

DCEXPO STUDIO NTT+大阪大学

西田眞也, 岩井大輔, 天野敏之

DCEXPO 2015  2015.10.25  

Computational Imaging and Projection

Shinsaku Hiura, Hajime Nagahara, Daisuke Iwai, Toshiyuki Amano

ISMAR 2015 Tutrials  2015.09.29  

ライトフィールド投影による構造色提示

天野敏之  [Invited]

マルチアパーチャ・ライトフィールドカメラ応用ワークショップ  2015.09.07  

見かけの質感操作 -プロジェクタカメラフィードバックとライトフィールド投影-

天野敏之  [Invited]

ライフ・3Dプリンタ創成センターシンポジウム2015-1  2015.04.03  

交差反復処理による深度カメラと地面のなす角度の推定

郎 彦昆, 呉 海元, 天野 敏之, 陳 謙

第77回全国大会講演論文集  2015.03.17  

　View Summary

This paper proposes a principle statistical approach for GP (ground plane) detection by using depth camera. Current GP detection algorithms have focused on calculating the minimum distance to estimating the ground plane, while less of them have considered the probability distribution and the angle of the camera to improve the performance.In this paper, we employ the KDE (Kernel Density Estimator) to obtain the probability density of the height distribution, with which the GP can be estimated. By using the estimated GP we calculate the angle of camera, and then feedback it to update GP until a certain condition has been reached. We evaluate our algorithm named as AGP-CIC(Angle-GP cross iterative convergence) on many challenging scenes and compare it with other distance-based algorithms.

現実の環境に適した見かけの制御アルゴリズムの提案

河野邦起, 牛田俊, 天野敏之

計測自動制御学会関西支部・システム制御情報学会若手研究発表会講演論文集(CD-ROM)  2015.01.16  

A Coordinated Projector Camera Control for the Omnidirectional Appearance Manipulation

天野 敏之, 島名 功, 牛田 俊

日本バーチャルリアリティ学会大会論文集 Proceedings of the Virtual Reality Society of Japan, Annual Conference  2014.09.17  

Online photometric calibration for the mobile projector camera system

川口敬宏, 天野敏之, 大槻正樹

情報処理学会研究報告(Web)  2014.02.24  

　View Summary

The spatial augmented reality technique that consists of a projector and a camera enables the appearance manipulation of real world by the illumination projection. Today, since the projector keeps getting smaller, the SAR made composed by mobile devices became a realistic story. However, it is difficult to calibrate an optical response beforehand because the use in various illumination environment is supposed for the mobile SAR system. In this research, we propose the method that achieves an invariant appearance manipulation for the various ambient lighting by the accurate reflectance estimation using DLP projector.

Adaptive geometrical compensation of projection image by update the pixel map

笠谷昇平, 天野敏之, 大槻正樹

情報処理学会研究報告(Web)  2014.02.24  

　View Summary

The Spatial Augmented Reality using the projector and camera system enables the geometrical compensation of the projection image based on the pixel correspondence (pixel map) between a capture image and a projection image obtained by the calibration. However, an artifact pattern is generated by a projection image because of a disparity between the pixel map and a physical projection when the projection is changed. In this paper, we propose the geometrical calibration method that update the pixel map adaptively. The idea is it uses the artifact pattern, and calculates the optical flow between a projection image and a capture image based on epipolar constraint.

プロジェクタカメラ系による実世界の見かけ操作

天野敏之  [Invited]

日本バーチャルリアリティ学会大会論文集(CD-ROM)  2013.09.18  

光投影による物体の実時間質感操作

天野敏之

日本バーチャルリアリティ学会大会論文集(CD-ROM)  2013.09.18  

プロジェクタカメラ系を用いた見かけの制御

天野敏之  [Invited]

新学術領域研究「質感脳情報学」質感研究の応用に関する意見交換会  2013.03.18  

異常を診る，鮮やかに観る，現実を操る新しい照明 - プロジェクタ・カメラ系を用いた見かけの制御 -

天野敏之  [Invited]

質感脳情報学研究会ー投影型ディスプレイ  2013.02.21  

プロジェクタカメラフィードバックを用いた質感制御

天野敏之, 中野翔太, 山下駿也, 笹渕貴史, 山下高寛, 五十嵐将志, 小村謙一

画像センシングシンポジウム講演論文集(CD-ROM)  2012.06.06