An efficient, one-pot synthesis of fosfomycin dialkyl esters from (R)-2-tosyloxypropanal (2008)
Hanaya, Tadashi, Nakamura, Yuichi, Yamamoto, Hiroshi
(R)-2-Tosyloxypropanal (4) was prepared from D-mannitol in a 7-step sequence (51% overall yield). Addition of dialkyl phosphonates to 4 in the presence of titanium isopropoxide and the subsequent...
Clinical Performance of a Salivary Amylase Activity Monitor During Hemodialysis Treatment (2008)
Masaru Shimazaki, Takayuki Matsuki, Kazuaki Yamauchi, Michihiro Iwata, Hiroshi Takahashi, Kenichi Sakamoto, ...
The hemodialysis procedure is thought to be a physical stressor in the majority of hemodialyzed patients. Previous studies suggest that elevated salivary amylase level may correlate with increased...
Nakamura, Yuichi, Hatano, Naomichi
We study a non-Hermitian generalization of quantum systems in which an imaginary vector potential is added to the momentum operator. In the tight-binding approximation, we make the hopping energy...
A non-Hermitian analysis of strongly correlated quantum systems (2006)
Nakamura, Yuichi, Hatano, Naomichi
We study a non-Hermitian generalization of strongly correlated quantum systems in which the transfer energy of electrons is asymmetric. It is known that a non-Hermitian critical point is equal to the...
Detecting Scenes of Attention from Personal View Records (2002)
Satoshi Kubota, Yuichi Nakamura, Yuichi Ohta
This paper introduces a novel method for analyzing video records captured by a head-mounted camera. Compared to our previous method, the new method is improved on two points. One is a new method of...
QUEVICO: A Framework for Video-based Interactive Media (2002)
Hidekatsu Izuno, Yuichi Nakamura, Yuichi Ohta
QUEVICO is a question-based video composition scheme in which video indexing and editing is designed from the viewpoint of "question and answer", and in which multi-view videos can be effectively...
Tracking Hands and Objects for an Intelligent Video Production System (2002)
Motoyuki Ozeki, Masatsugu Itoh, Yuichi Nakamura, Yuichi Ohta
We propose a novel method for detecting hands and hand-held objects in desktop manipulation situations. In order to achieve robust tracking under few constraints, we use multiple image sensors, that...
Human Behavior Recognition for an Intelligent (2002)
Motoyuki Ozeki, Yuichi Nakamura, Yuichi Ohta
We propose a novel framework for automated video capturing and production for desktop manipulations. We focus on the system's ability to select relevant views by recognizing types of human behavior.
Object Arrangement Estimation using Color Edge Profile (2002)
Yuichi Nakamura, Naoaki Sumida, Yuichi Ohta
In this paper, we propose a method for classifying image edges caused by different physical phenomena, i.e. reflectance change, shadow, occlusion, etc., by using color information around the edge. We...
Diagram Generation from Tagged Texts: Toward Document Navigation (2002)
Masashi Murayama, Yuichi Nakamura, Yuichi Ohta
We often need too much time for reading documents, since it is often difficult to efficiently grasp its outline. For this purpose, we propose our diagram generation scheme for presenting the...
Augmenting Communication in a Shared Mixed-Reality Space (2002)
Yuichi Nakamura, Itaru Kitahara, Katsuhiko Sakaue, Yuichi Ohta
A shared mixed-reality space is a space where multiple people share the perception of mixed reality. The people communicate one another in looking and feeling the events in real world augmented by...
Camerawork For Intelligent Video Production (2002)
Motoyuki Ozeki, Yuichi Nakamura, Yuichi Ohta
In this paper, we introduce an intelligent system for video recording. First, we categorized targets and purposes of shooting, and discuss the cameraworks appropriate for them. Then, we propose...
Occlusion Detectable Stereo (2002)
Yuichi Nakamura, Tomohiko Matsuura, Kiyohide Satoh, Yuichi Ohta
In stereo algorithms with more than two cameras, the improvement of accuracy is often reported since they are robust against noise. However, another important aspect of the polynocular stereo, that...
Structuring Personal Activity Records based on Attention (2002)
This paper introduces a novel method for analyzing video records which contain personal activities captured by a head mounted camera. This aims to support the user to retrieve the most important or...
A Web Services Cache Architecture Based on XML Canonicalization (2002)
Takase, Toshiro, Nakamura, Yuichi, Neyama, Ryo, Eto, Hiroaki
Recently, the Web services model has attracted a lot of attention, but so far there have been few discussions about the performance of Web services. For HTTP, cache technology has been widely used...
Multimodal Approach toward Intelligent Video Production (1999)
This paper presents the framework of our intelligent video production, which has functions for multimodal data acquisition, accumulation to a database, and intelligent video editing. Since multimodal...
We have been developing Name-It, a system that associates faces and names in news videos. First, as the only knowledge source, the system is given news videos which include image sequences and...
Spotting by Association in News Video (1999)
This paper introduces the Spotting by Association method for video analysis, which is a novel method to detect video segments with typical semantics. Video data contains various kinds of information...
We have been developing Name-It, a system that associates faces and names in news videos. First, as the only knowledge source, the system is given news videos which include image sequences and...
Synthesis of Arbitrarily Oriented Face Views from Two Images (1996)
Yasuhiro Mukaigawa, Yuichi Nakamura, Yuichi Ohta
In this paper, we propose a method for synthesizing arbitrarily oriented facial views from only two facial images. The method includes the following features: unlike the 2-D interpolation method, the...
Synthesis of Arbitrarily Oriented Face Views from Two Images (1996)
Yasuhiro Mukaigawa, Yuichi Nakamura, Yuichi Ohta
In this paper, we propose a method for synthesizing arbitrarily oriented facial views from only two facial images. The method includes the following features: unlike the 2-D interpolation method, the...