974 research outputs found
Image similarity based on Discrete Wavelet Transform for robots with low-computational resources
No full textThis paper describes a similarity measure for images which can be used in image-based topological localization and topological SLAM problems by autonomous robots with low computational resources. Instead of storing the images in the robot’s memory, we propose a compact signature to be extracted from the images. The signature is based on the calculation of the 2D Haar Wavelet Transform of the gray-level image and its size is only 170 bytes. We called this signature the DWT-signature. We exploit the frequency and space localization property of the wavelet transform to match the images grabbed by the perspective camera mounted on board the robot and the reference panoramic images built using an automatic image stitching procedure. The proposed signature allows, at the same time, memory saving and fast and efficient similarity calculation. For the topological SLAM problem we also present a simple implementation of a loop-closure detection based on the proposed signature.
We report experiments showing the effectiveness of the proposed image similarity measure using two kinds of small robots: an AIBO ERS-7 robot of the RoboCup Araibo Team of the University of Tokyo and a Kondo KHR-1HV humanoid robot of the IAS-Lab of the University of Padua
A successful model of regional healthcare information exchange in Japan: Case Study in Kagawa Prefecture
No full textIn this study, we focused on analysis of healthcare data exchange over the network. For the advance of broadband capability development, many governments expect online medical information exchange between medical institutions. Japanese government also has tried to deploy ICT in the healthcare field. In Japan, many healthcare ICT projects started, but almost of all the projects face many issues and failed to continue. This situation caused us to clarify the success factor of healthcare information exchange network. For inspecting the success factors, we analyzed information access of healthcare systems in Kagawa prefecture of Japan. Kagawa prefecture is one of the most advance areas for healthcare information technology. We analyzed four medical ICT projects in Kagawa prefecture: K-MIX, Critical Pathway for Diabetes, E-prescription, and PHR. In addition, we inspected characteristics of exchanged data in the network, and stakeholder involved in these projects. This analysis lets us find various types of healthcare ICT projects. Characteristic of data processed in the projects caused differences of characteristic of the projects. On the other hand, multiple systems process same data, though the project does not share the data itself. Considering various types of medical information exchanges projects, we propose classification and standard format of exchanged data according to their characteristic are critical for efficient business deployment. --e-Health,regional healthcare information exchange,EHR
Toward image-based localization for AIBO using wavelet transform
No full textThis paper describes a similarity measure for images to be used in image-based localization for autonomous robots with low computational resources. We propose a novel signature to be extracted from the image and to be stored in memory. The proposed signature allows, at the same time, memory saving and fast similarity calculation. The signature is based on the calculation of the 2D Haar Wavelet Transform of the gray-level image. We present experiments showing the effectiveness of the proposed image similarity measure. The used images were collected using the AIBOs ERS-7 of the RoboCup Team Araibo of the University of Tokyo on a RoboCup field, however, the proposed image similarity measure does not use any information on the structure of the environment and do not exploit the peculiar features of the RoboCup environment
Handwrtitten notes for lease agreement between Dominguez Estate Company and Shigeru Ueda, approximately 1938
No full textSigeru Ueda written as "Bob Ueda."Handwritten notes with description of a lease agreement including eight different plots of land and cost of yearly rent. Shorthand notes are also included at the end of the document. See Item csudh_rsp_0072 for an executed lease agreement describing the same acreage
Letter from Dominguez Estate Company to Mr. Robert S. [Shigeru] Ueda, June 7, 1940
No full textLetter is one of several attempts to acquire from Ueda a lease agreement with his signature for the current year
Land lease statement from Dominguez Estate Company to Robert S. [Shigeru] Ueda
No full textStatement reflects balances due for both 1938 and 1939 leases. An additional note sternly insists Ueda make an immediate payment
Letter from Dominguez Estate Company to Mr. Robert S. [Shigeru] Ueda, May 9, 1939
No full textLetter asks Ueda to sign and return two copies of a lease agreement that was recently sent
Letter from Dominguez Estate Company to Mr. Robert Shigeru Ueda, June 8, 1938
No full textLetter asks Ueda to return his rental receipt book with his upcoming payment to cancel charges for an 18 acre lease previously occupied b Mr. Goto
Letter from [John Victor Carson], Dominguez Estate Company to Mr. Robert S. [Shigeru] Ueda, January 6, 1938
No full textLetter requests Ueda sign a second copy of a land lease agreement, the first copy was enclosed in the sent letter as an executed document for his records
Micro droplets generated on a rising bubble through an oppositely charged oil/water interface
No full textThe mass transfer between immiscible two-liquid phases can be greatly enhanced by bubbling gas through a reactor. Numerous micro water droplets breaking out from a ruptured water film around a rising bubble through the oil (upper phase)/water (lower phase) interface were demonstrated in the preceding paper (Uemura T., Ueda Y. and Iguchi M., Europhys. Lett., 92(2010)34004). In this letter, we attempt to oppositely charge the oil and water layers, taking into account the findings of the preliminary study (Uemura T., Ueda Y. and Iguchi M., J. Visualization, 13(2010)85). As a result, this study successfully produces more and finer water droplets than the preceding experiments
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