Man/machine interaction in computer assisted page layout

Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1981.MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING.Bibliography: leaves 46-47.by Paul Byers Trevithick.B.S

The electronic broadsheet : all the news that fits the display

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1991.Includes bibliographical references (leaves 82-84).Håkon Wium.M.S

Electronic newsstand : design of an intelligent interface to a variety of news sources in several media

Thesis (M.S.V.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1986.MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCH.Includes bibliographical references (leaves 58-63).The personal computer. as an intermediary between mass communications systems and the individual viewer, can filter incoming news, eliminating irrelevant and redundant stories and highlighting items of interest. However, important information can be lost by removing an article from the context of its original publication. Knowing the identity of the source helps the viewer judge the reliability and objectivity of the account. Seeing the article as originally presented among a number of other stories indicates to the viewer the significance of the story and its relationship to other current events. A program has been designed and implemented which presents news articles within the context of their original publication. It provides a uniform interface to a number of electronically distributed publications, both text and video. A two level display accommodates both casual browsing and attentive viewing. The first level, which shows several articles simultaneously , preserves the information encoded in the original layout. The second level. which displays a single article, is designed to provide the best environment for viewing that article. The program can be used to create special interest compilations. Topics of interest may be defined by marking keywords. All available sources are searched for pertinent articles. These are collected in a "synthetic" journal. The same interface is used to peruse ·an original publication and a user-specified synthetic journal.by Judith S. Donath.M.S.V.S

Forms for electronic books

Thesis (M.S.V.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1983.MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCHBibliography: leaves 80-84.The book is proposed as a candidate form for new electronic information systems. The electronic book casts the powerfully expressive new media of computers and video in the accessible forms of the printed book. It is a testbed for developing novel methods of interactive information retrieval and perusal that are as useful and intuitive as those of the printed book. The evolution of the book in a history of technological innovation is examined, and the electronic book is established as a logical and adaptive next stage in that evolution. The influence of media forms on the information they carry, and on the way we think, is also considered. The movie manual, a videodisc-based prototype for an electronic book, is presented in a photo-demonstration. Videodisc production and the design and implementation of an object-oriented software system for editing and viewing the movie manual are described. The final section proposes some directions for further work on the movie manual, and looks at possibilities for forms of future books.by Steve Gano.M.S.V.S

A new approach to the generation of Gray scale Chinese fonts.

by Poon Chi-cheung.Thesis (M.Phil.)--Chinese University of Hong Kong, 1993.Includes bibliographical references (leaves 82-84).AbstractAcknowledgmentsPrefaceChapter Chapter 1: --- Font Systems --- p.1Representations of Character Images --- p.1Characteristics of Chinese Font System --- p.3Large Character Set --- p.3Condensed Strokes --- p.4Low Repetition Rate --- p.5WYSIWYG (What You See Is What You Get) --- p.6Chapter Chapter 2: --- Human Visual System and Gray Scale Font --- p.9Human Visual System --- p.9Physiology --- p.9Spatial Frequencies --- p.10How much resolution is enough --- p.11Screen and Printer --- p.12Raster Display Devices --- p.13Printer --- p.14Resolution --- p.15Gray Scale Font --- p.15Generation of Gray Scale Font --- p.18Chapter Chapter 3: --- Digital Filtering Method for Gray Scale Font --- p.19Filtering Process --- p.19Weighted Functions --- p.21Generation of Gray Scale Character --- p.23Results --- p.24More Experiments --- p.24Problems --- p.26Speed and Storage --- p.26Impression of Strokes --- p.27Thin strokes in the small-size character --- p.30New Approach to Generate Gray Scale Font --- p.30Chapter Chapter 4: --- Rasterization Algorithms --- p.32Outline Font --- p.32TrueType Font --- p.33Scan Conversion --- p.35Basic Outline-to-Bitmap Conversion --- p.35Scan-converting Polygon --- p.36Rasterization of a character --- p.36Intersecting Points and Ranges --- p.37Straight Lines --- p.37Quadratic Bezier Curves --- p.38Implementation Techniques --- p.39Approximation of quadratic Bezier curve by straight lines --- p.39Simplification of the Filling Process --- p.41The Rasterization Algorithm --- p.45Chapter Chapter 5: --- Direct Rasterization with Gray Scale --- p.46Rasterization with Gray Scale --- p.46Determination of Gray Value of Boundary-pixel --- p.50Preliminary Results --- p.54Hinting --- p.56Rasterization with Hinting --- p.56Strokes Migration --- p.57Hints Finding --- p.59Chapter Chapter 6: --- Results and Conclusion --- p.62Quality --- p.66Comparison with Black-and-White Character --- p.66Hinted Against Unhinted --- p.71Generation Speeds --- p.75Discussion and Comments --- p.78Practical Font System --- p.79Conclusion --- p.80Bibliography --- p.8

A dialogue of forms : letter and digital font design

Thesis (M.S.V.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1986.MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCH.Bibliography: leaves 104-120.by Debra Anne Adams.M.S.V.S

Visual search and VDUS

This wide-ranging study explored various parameters of visual search in relation to computer screen displays. Its ultimate goal was to help identify factors which could result in improvements in commercially available displays within the 'real world’. Those improvements are generally reflected in suggestions for enhancing efficiency of locatabolity of information through an acknowledgement of the visual and cognitive factors involved. The thesis commenced by introducing an ergonomics approach to the presentation of information on VDUs. Memory load and attention were discussed. In the second chapter, literature on general and theoretical aspects of visual search (with particular regard for VDUs) was reviewed. As an experimental starting point, three studies were conducted involving locating a target within arrays of varying configurations. A model concerning visual lobes was proposed. Two text-editing studies were then detailed showing superior user performances where conspicuity and the potential for peripheral vision are enhanced. Relevant eye movement data was combined with a keystroke analysis derived from an automated protocol analyser. Results of a further search task showed icons to be more quickly located within an array than textual material. Precise scan paths were then recorded and analyses suggested greater systematicity of search strategies for complex items. This led on to a relatively 'pure' search study involving materials of varying spatial frequencies. Results were discussed in terms of verbal material generally being of higher spatial frequencies and how the ease of resolution and greater cues available in peripheral vision can result in items being accessed more directly. In the final (relatively applied) study, differences in eye movement indices were found across various fonts used. One main conclusion was that eye movement monitoring was a valuable technique within the visual search/VDU research area in illuminating precise details of performance which otherwise, at best, could only be inferred

Structures and interactivity of media--a prototype for the electronic book

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Architecture, 1988.Bibliography: leaves 150-164.by David S. Backer.Ph.D