Masakatsu Kourogi

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In this paper, we propose a method of personal positioning for a wearable Augmented Reality (AR) system that allows a user to freely move around indoors and outdoors. The user is equipped with self-contained sensors, a wearable camera, an inertial head tracker and display. The method is based on sensor fusion of estimates for relative displacement caused by(More)
This paper describes an embedded pedestrian navigation system composed of a self-contained sensors, the Global Positioning System (GPS) and an active Radio Frequency Identification (RFID) tag system. We use self-contained sensors (accelerometers, gyrosensors and magne-tometers) to estimate relative displacement by analyzing human walking locomotion. The GPS(More)
In this paper, we describe a n i m p r oved method o f personal positioning and orientation using image registration between input video f r ames and panoramic images captured b eforehand. In our previous work, we proposed the method of image registration with an ane transform. However, the ane transform is generally not capable of image registration(More)
We propose a wearable active camera with laser pointer (WACL) as a human interface device for use in telecommunications. The WACL laser pointer is attached to the active camera-head and it can point a laser spot while elevating and panning the camera-head. In our system, a remote instructor can observe around the worker, who is wearing the WACL,(More)
In this paper, we discuss the development of wearable systems which we collectively term VizWear. Vision plays an important role in both people's and computers' understanding of contextual information , and the use of augmented reality (AR) techniques is a good way to show information intuitively. This is the basis of our research o n w e a r-able computer(More)
This paper describes a fast and robust image registration method that can be used to create a panoramic image/video from video sequences. To estimate alignment parameters for image registration, the method computes pseudo motion vectors that are rough estimates of optical ows at each selected pixels. Using the proposed method, we implemented a software(More)
This paper describes a Functionally-Distributed (FD) hand tracking method for hand-gesture-based wearable visual interfaces. The method is an extension of the Distributed Monte Carlo (DMC) tracking method which we have developed. The method provides coarse but rapid hand tracking results with the lowest possible number of samples on the wearable side, and(More)
A n n o t a t i o n overlay o n live video frames is a n essential feature of augmented reality (AR): and is a well-suited application for wearable computers. A novel method of annotation overlay and its real-time i m-plementation i s presented. T h i s method uses a set of panoramic images captured by omnidirectional vision at various points of environment(More)