2,572 research outputs found

    Oxalis: A Distributed, Extensible Ophthalmic Image Annotation System

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    Currently, ophthalmic photographers and clinicians write reports detailing the location and types of disease visible in a patient's photograph. When colleagues wish to review the patient's case file, they must match the report with the image. This is both inefficient and inaccurate. As a solution to these problems, we present Oxalis, a distributed, extensible image annotation architecture, implemented in the Java programming language. Oxalis enables a user to: 1) display a digital image, 2), annotate the image with diagnoses and pathologies using a freeform drawing tool, 3) group images for comparison, and 4) assign images and groups to schematic templates for clarity. Images and annotations, as well as other records used by the system, are stored in a central database where they can be accessed by multiple users simultaneously, regardless of physical locality. The design of Oxalis enables developers to modify existing system components or add new ones, such as display capabilities for a new image format, without editing or recompiling the entire system. System components can elect to be notified when data records are created, modified, or removed, and can access the most current system data at any point. While Oxalis was designed for ophthalmic images, it represents a generic architecture for image annotation applications

    Text books untuk mata kuliah pemrograman web

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    .HTML.And.Web.Design.Tips.And.Techniques.Jan.2002.ISBN.0072228253.pd

    Twenty Years of US Digital Copyright: Adapting from Analogue

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    This review of the period 2001–21 in US copyright law will summarize digital-dominated developments concerning the scope of exclusive rights and exceptions and liability regimes. It will address several developments, all related to the impact of the internet on the exploitation of works of authorship. Digital storage and communications have called into question the scope of the exclusive rights set out in the US Copyright Act, and they have considerably expanded the reach of the fair use exemption. They have strained statutory and common law regimes of secondary liability and prompted the development of a ‘volition’ predicate to primary liability. While case law concerning non-digital subject matter or scope of protection has also abounded — including the Supreme Court’s rejection of constitutional challenges to Congress’s power to extend the copyright terms of existing works and to restore copyright to certain foreign works that had fallen into the public domain in order to comply with international obligations; the court’s failure to clarify the impenetrable statutory standard for the protection of applied art; and the court’s interpretation of the first sale doctrine to establish a rule of international exhaustion — space constraints compel the choice to confine this overview to the digital domain

    Digital Image Access & Retrieval

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    The 33th Annual Clinic on Library Applications of Data Processing, held at the University of Illinois at Urbana-Champaign in March of 1996, addressed the theme of "Digital Image Access & Retrieval." The papers from this conference cover a wide range of topics concerning digital imaging technology for visual resource collections. Papers covered three general areas: (1) systems, planning, and implementation; (2) automatic and semi-automatic indexing; and (3) preservation with the bulk of the conference focusing on indexing and retrieval.published or submitted for publicatio

    Map online system using internet-based image catalogue

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    Digital maps carry along its geodata information such as coordinate that is important in one particular topographic and thematic map. These geodatas are meaningful especially in military field. Since the maps carry along this information, its makes the size of the images is too big. The bigger size, the bigger storage is required to allocate the image file. It also can cause longer loading time. These conditions make it did not suitable to be applied in image catalogue approach via internet environment. With compression techniques, the image size can be reduced and the quality of the image is still guaranteed without much changes. This report is paying attention to one of the image compression technique using wavelet technology. Wavelet technology is much batter than any other image compression technique nowadays. As a result, the compressed images applied to a system called Map Online that used Internet-based Image Catalogue approach. This system allowed user to buy map online. User also can download the maps that had been bought besides using the searching the map. Map searching is based on several meaningful keywords. As a result, this system is expected to be used by Jabatan Ukur dan Pemetaan Malaysia (JUPEM) in order to make the organization vision is implemented

    An Analysis and Validation of an Online Photographic Identity Exposure Evaluation System

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    The rapid growth in volume over the last decade of personal photos placed online due to the advent of social media has made users highly susceptible to malicious forms of attack. A system was proposed and constructed using Open Source technologies capable of acquiring the necessary data to conduct a measurement of online photographic exposure to aid in assessing a user\u27s digital privacy. The system\u27s effectiveness at providing feedback on the level of exposure was tested by using a controlled set of three subjects. Each subject provided three training photos each that simulated what would be easily ascertainable from social media profiles, online professional portfolios, or public photography. The system was able to successfully biometrically identify 23 images out of ~14,000 that related to one of the respective candidates. This validates the system as an automated threat and vetting tool for online photographic privacy. VeriLook 5.4 one-to-many matching grossly underperformed on the images gathered with a mere 21% at best true acceptance rate. The scoring algorithm used herein to evaluate each candidate\u27s online photographic exposure was proven to be effective. The system developed was able to show that a candidate\u27s assumption of their digital footprint size is not always correct. Additional testing of the scoring algorithm is recommended before a conclusion can be made with about its universal accuracy

    A Semantic-Based Middleware for Multimedia Collaborative Applications

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    The Internet growth and the performance increase of desktop computers have enabled large-scale distributed multimedia applications. They are expected to grow in demand and services and their traffic volume will dominate. Real-time delivery, scalability, heterogeneity are some requirements of these applications that have motivated a revision of the traditional Internet services, the operating systems structures, and the software systems for supporting application development. This work proposes a Java-based lightweight middleware for the development of large-scale multimedia applications. The middleware offers four services for multimedia applications. First, it provides two scalable lightweight protocols for floor control. One follows a centralized model that easily integrates with centralized resources such as a shared too], and the other is a distributed protocol targeted to distributed resources such as audio. Scalability is achieved by periodically multicasting a heartbeat that conveys state information used by clients to request the resource via temporary TCP connections. Second, it supports intra- and inter-stream synchronization algorithms and policies. We introduce the concept of virtual observer, which perceives the session as being in the same room with a sender. We avoid the need for globally synchronized clocks by introducing the concept of user\u27s multimedia presence, which defines a new manner for combining streams coming from multiple sites. It includes a novel algorithm for estimation and removal of clock skew. In addition, it supports event-driven asynchronous message reception, quality of service measures, and traffic rate control. Finally, the middleware provides support for data sharing via a resilient and scalable protocol for transmission of images that can dynamically change in content and size. The effectiveness of the middleware components is shown with the implementation of Odust, a prototypical sharing tool application built on top of the middleware

    A general model for print delivery of internet documents

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    With the explosion of the Internet there are abundant opportunities for budding authors (writers and designers). Their content can be eaily posted on the Web and accessed by a wide reader base through WWW. However, this on-demand and on-site publishing is limited to on-screen viewing and desktop printing. As more and more books and materials are accessed, there is growing need for on-demand printed copies. Ordering a printed copy is still a traditional business which limits amature authors and users from getting easy access to them. Some of the on-line bookstores provide only the purchase transactions through on-line, while the printing itself is done through traditional process. Some of the growing needs of on-demand printing include: getting a printed copy of a electronic Thesis material, printed copy of selective sections of a User Manual, revised pages of a Book. This thesis project involves a thorough study of a Model to facilitate on-demand print of documents available in Internet covering such issues like quality, speed, copyright, security, bandwidth, royalty and delivery. A working project will be developed, demonstrating the Model, using a Docutech Printer. The steps involved in setting up a work flow to facilitate on-demand printing of an Internet document using Interdoc/Docutech work flow will be documented. This work could be further extended to adopt to the evolving Collaborated Publishing concept widely being discussed for use in the Academic Society

    Instruction document on multimedia formats:optimal accessibility of audio, video and images

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    We increasingly express ourselves through multimedia. Internet traffic already consists for the most part of audio and video. A variety of formats are used for this purpose, often without due consideration. This document provides a background for choices that can be made for making video and audio available. In this context, open standards are (at present) less common than closed standards. Nevertheless, open standards are more useful in terms of sustainable access to multimedia content. This document provides an insight into the relevant considerations to help you make the right choice when selecting formats
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