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Committee Date Time Place Paper Title / Authors Abstract Paper #
COMP 2019-03-18
Tokyo The University of Tokyo A GPU-based Non-commutative Reduction and Its Applications to Operations for Difference Arrays
Atsushi Koike (NIT Ichinoseki), Kunihiko Sadakane (UTokyo) COMP2018-47
Reduction is basic operation in parallel computing.It is generalization of summation, in which we can use any associativ... [more] COMP2018-47
COMP, IPSJ-AL 2013-05-17
Hokkaido Otaru University of Commerce On Complexities of Parallel Sort Algorithms on AGPU model
Atsushi Koike, Kunihiko Sadakane, Hoa Vu (NII) COMP2013-13
This paper is concerned with complexities of parallel sorting algorithms on AGPU model.
First, we analyze known sort al... [more]
ITS, IE, ITE-AIT, ITE-HI, ITE-ME [detail] 2013-02-18
Hokkaido Hokkaido Univ. Pixel interpolation method using adaptive processing window with edge features.
Ryohei Yamguchi, Teppei Sato, Hitomi Murakami, Naoya Wada, Atsushi Koike (Seikei Univ.) ITS2012-32 IE2012-112
In this paper, we propose a method of pixel interpolation using adaptive processing window for edge features. To date, w... [more] ITS2012-32 IE2012-112
ITS, IE, ITE-AIT, ITE-HI, ITE-ME [detail] 2013-02-18
Hokkaido Hokkaido Univ. Localization Using Mobile Phone and Image Matching -- Improving Precision by Combination of Two Types of Image Matching Method --
Hiroshi Ito, Atsushi Koike, Hitomi Murakami (Seikei Univ.) ITS2012-37 IE2012-117
We propose a new localization technique using mobile phone. The suggested technique performs matching of still image and... [more] ITS2012-37 IE2012-117
COMP 2012-10-31
Miyagi Tohoku University A Novel Computation Model for GPU
Atsushi Koike, Kunihiko Sadakane (NII) COMP2012-42
We propose a novel computation model for GPU. Known parallel computation models such as the PRAM model are not appropria... [more] COMP2012-42
IE, SIP, ICD, VLD, IPSJ-SLDM [detail] 2012-10-18
Iwate Hotel Ruiz Human Behavior Detection Using Direction Change Invariant Features of Cubic Higher Order Local Auto Correlation
Takeyuki Ishii, Hitomi Murakami, Atsushi Koike (Seikei Univ.) VLD2012-40 SIP2012-62 ICD2012-57 IE2012-64
In this paper, we propose a new method of feature homogenization to prevent changes in the features according to human s... [more] VLD2012-40 SIP2012-62 ICD2012-57 IE2012-64
IE 2012-04-27
Tokyo Seikei University Performance Comparison Between SIFT and SURF for Feature Points Matching in Dynamic Calibration with Zoom Camera
Arata Suda, Hitomi Murakami, Atsushi Koike (Seikei Univ.), Hiroshi Sankoh, Sei Naito (KDDI Labs) IE2012-9
Synthetic technology of Free Viewpoint Video as variety of techniques has been proposed. but target space and projection... [more] IE2012-9
IE 2012-04-27
Tokyo Seikei University Scale Invariants Abnormal Motion Detection of Human Behavior
Takeyuki Ishii, Hitomi Murakami, Atsushi Koike (Seikei Univ.) IE2012-10
This paper proposes a scale invariant identification scheme of human behavior,so that distinguishing abnormal behavior t... [more] IE2012-10
ET 2010-03-05
Kochi Kouchi Univ. E-learning system for junior high school and high school students using cellular phone -- Application of cellular phone to 3-dimentional picture --
Makoto Tomioka, Masakazu Higuchi, Syuji Kawasaki, Atsushi Koike, Hitomi Murakami (Seikei Univ.) ET2009-104
The advantage of e-learning, which is a learning way by using electronic equipment, is that users can get learning from ... [more] ET2009-104
ITE-BCT, IE, CS, IPSJ-AVM 2008-12-11
Aichi Nagoya University An Iterative Approach for 3-D Model Generation Using Disparity Maps
Mehrdad Panahpour Tehrani, Akio Ishikawa, Shigeyuki Sakazawa, Atsushi Koike (KDDI R&D Labs) CS2008-40 IE2008-104
In this research, we address the problem of 3-D model generation from disparity maps. Given an inaccurate 3-D model, den... [more] CS2008-40 IE2008-104
IE, SIP, IPSJ-SLDM 2008-10-07
Iwate Aiina Center (Morioka) A Personal Authentication from Video using Handheld Camera by Parametric Eigenspace Method
Yusuke Morizumi (Tokyo Institute of Technology Univ.), Kenji Matsuo, Atsushi Koike (KDDI Labs.), Akira Kubota, Yoshinori Hatori (Tokyo Institute of Technology Univ.) SIP2008-118 IE2008-82
 [more] SIP2008-118 IE2008-82
PRMU, IE 2008-03-10
Ishikawa   Moving Camera Calibration Using Generated Model of a Scene
Mehrdad Panahpour Tehrani (KDDI R&D LABS), Akio Ishikawa, Shigeyuki Sakazawa, Atsushi Koike (KDDI Labs.) IE2007-272 PRMU2007-256
 [more] IE2007-272 PRMU2007-256
PRMU, IE 2008-03-10
Ishikawa   Free Viewpoint Video Rendering Method for Realizing Walkthrough
Akio Ishikawa, Mehrdad Panahpour Tehrani, Shigeyuki Sakazawa, Atsushi Koike (KDDI Labs.) IE2007-293 PRMU2007-277
 [more] IE2007-293 PRMU2007-277
ICD, ITE-CE 2007-12-14
Kochi   [Invited Talk] Recent Trend of Transmission Technology for Super Resolution Images
Sei Naito, Shigeyuki Sakazawa, Atsushi Koike (KDDI R&D Labs.) ICD2007-135
As the digital terrestrial broadcasting service becomes a main stream with a nationwide coverage, TV broadcasting, one o... [more] ICD2007-135
IE, ITE-BCT, ITE-ME, ITE-AIT 2007-11-29
Saga Saga University The Optimal Color Correction of Multicamera Systems
Mehrdad Panahpour Tehrani, Akio Ishikawa, Shigeyuki Sakazawa, Atsushi Koike (KDDI R&D Labs) IE2007-94
We address the problem of optimal color correction of multipoint camera systems that obtains dominant color pattern amon... [more] IE2007-94
PRMU, DE 2007-06-29
Hokkaido Hokkaido Univ. A study on image-similarity retrieval of the gastric biopsy based on the nucleus cytoplasm ratio
Satoshi Ueno, Kenji Matsuo, Masayuki Hashimoto, Atsushi Koike (KDDI R&D Laboratories Inc.), Naoyuki Miyokawa, Akitoshi Yoshida (ASAHIKAWA MEDICAL COLLEGE) DE2007-12 PRMU2007-38
In this paper we propose similar-image-retrieval methods for gastric biopsy image. A similar image retrieval system is u... [more] DE2007-12 PRMU2007-38
IE 2007-03-19
Aichi   Lossless Coding of Color Video Signals Based on Motion Compensation and Inter-Color
Toshimitsu Izumi, Hiroki Maeda, Ichiro Matsuda, Susumu Itoh (Tokyo Univ. of Science), Sei Naito, Atsushi Koike (KDDI R&D Labs.)
This paper describes an efficient lossless video coding scheme of color video signals provided in YUV 4:2:0 format. At e... [more] IE2006-277
IE 2007-03-19
Aichi   Near-Lossless Coding of Still Images Using Block-Adaptive Prediction
Kazuya Takahashi, Nau Ozaki, Ichiro Matsuda, Susumu Itoh (Tokyo Univ. of Science), Sei Naito, Atsushi Koike (KDDI R&D Labs.)
This paper proposes a near-lossless coding scheme using block-adaptive prediction for still images. The scheme employs a... [more] IE2006-278
MoNA 2006-07-14
Osaka Kansai Univ. Centenary Memorial Hall, Kansai Univ. Senriyama Campus Study on Performance Improvement of R-D Optimization Technology Considering Local Image Feature
Tomonobu Yoshino, Sei Naito, Atsushi Koike (KDDI R&D Labs.) MoMuC2006-27
It is expected that HDTV broadcasting service over IP networks such as IPTV and VOD became popular. Assuming the use of ... [more] MoMuC2006-27
MVE, IE 2006-07-13
Ishikawa Kanazawa University Generation of Free Viewpoint Video by Image Interpolation in Divided Partial Regions
Akio Ishikawa, Shigeyuki Sakazawa, Atsushi Koike (KDDI Labs.)
We propose a method in order to generate a free viewpoint image (the images from a virtual viewpoint without a video cam... [more] IE2006-25 MVE2006-31
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