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Siu Chi Hsu

dblp:67/2322 · DBLP profile ↗
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4ranked-venue papers
3as first author
0since 2021 · last 1995
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Human-computer interaction and ubiquitous computing · 3 · 3 first-authorSoftware engineering, systems software and programming languages · 1Graphics, computer vision, multimedia, augmented reality and games · 1 · 1 first-authorApplied, interdisciplinary, general and emerging computing · 1

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer graphics and multimedia
2 papers
Geometric modeling and processing · 30% Computer animation and physical simulation · 24% Rendering · 24%
Human-computer interaction and pervasive computing
2 papers
Interaction techniques and input · 57% User interface design and tools · 43%

Topics — the 5 heaviest of 8, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Computer animation and physical simulation
2d animation
0.011994
Drawing and animation using skeletal strokes · SIGGRAPH 1994
Rendering › temporal rendering
motion blur
0.011994
Drawing and animation using skeletal strokes · SIGGRAPH 1994
Image and video processing › image warping
image deformation
0.011993
Skeletal Strokes · ACM Symposium on User Interface Software and Technology 1993
Interaction techniques and input
text entry
0.011991
A flexible Chinese character input scheme · UIST 1991
User interface design and tools › interactive design tools
drawing tools
0.011994
Drawing and animation using skeletal strokes · SIGGRAPH 1994

Methods — techniques the papers use, named apart from their topics

coordinate system deformation · 0.0IFS coding · 0.0character part partitioning · 0.0automatic key binding · 0.0
YearPublicationVenuePosition
1995 Designing Chinese Typeface Using Components
abstract
We discuss a generic design scheme for constructing Chinese characters. We first highlight the demand for developing an automatic Chinese font design system. Then, we show that the structure of a Chinese character can be represented by a structured character description. The scheme for designing a character is presented in details. Our discussion includes stroke definition, building up components, and balancing the appearance of a character. A number of factors are considered in designing and harmonizing a character which includes component spacing, complexity, blackness, visual centre, centre of gravity, and attractive force. A prototype font design system is being built according to this component-based approach. Samples are given to show how a Chinese character can be constructed using the system. Finally, future research direction is recommended for further development.
Paul Yiu Chung Wong, Siu Chi Hsu
COMPSAC2
1994 Drawing and animation using skeletal strokes
abstract
The use of skeletal strokes is a new vector graphics realization of the brush and stroke metaphor using arbitrary pictures as “ink”. It is based on an idealized 2D deformation model defined by an arbitrary path. Its expressiveness as a general brush stroke replacement and efficiency for interactive use make it suitable as a basic drawing primitive in drawing programs as well as windowing and page description systems. This paper presents our drawing and animation system, “Skeletal Draw”, based on skeletal strokes. The effectiveness of the system in stylish picture creation is illustrated with various pictures made with it. Decisions made in the handling of sub-strokes in a higher order stroke and recursive strokes are discussed. The general anchoring mechanism in the skeletal stroke framework allows any arbitrary picture deformation to be abstracted into a single stroke. Its extension to piecewise continuous anchoring and the anchoring of shear angle and stroke width are explained. We demonstrated how this mechanism allows us to build up powerful pseudo-3D models which are particularly useful in the production of 2 1/2 D cartoon drawings and animation. Animation sequences have been made to illustrate the ideas, including a vector graphics based motion blurring technique.
Siu Chi Hsu, Irene H. H. Lee
SIGGRAPH1
1993 Skeletal Strokes
abstract
A skeletal stroke is a kind of general brush stroke for changing the shape of pictures as if by bending, shearing, twisting, while conservating the aspect ratio of selected features on tie picture.It is neither a simple warping nor texture mapping technique, but a new method for controlling the deformation of a picture.A deformation model of a cocJrdinate system has been proposed taking into account cases of discontinuous or extreme bending.Complicated pictures can be built up hierarchically by defining higher order strokes and recursive strokes.It is therefore a powerful general drawing tool and extended image transformation instrument.The use of skeletal strokes as a replacement for affine transformations in IFS coding has been explored.A novel general anchoring mechanism is proposed, which allows arbitrary control of any point in the picture.This control flexibility is particularly desirable in computer animation and digital typography.As a result, virtual '2-D models' of cartoon characters as well as pseudo 3-D objects can be created and manipulated with ease.
Siu Chi Hsu, Irene H. H. Lee, Neil E. Wiseman
ACM Symposium on User Interface Software and Technology1
1991 A flexible Chinese character input scheme
abstract
A very flexible and easy-to-use scheme which possesses unique advantages over existing systems is presented in this article.The scheme is based on the partitioning of a character into parts, A character is inputted by specifying the sequence of character parts descriptions, which is then matched against the standard sequences of the characters in the character set.A character part is either described with a unique key or its stroke count.The matching algorithm allows the characters to be partitioned flexibly and inputted in many different ways.An automatic binding mechanism offers very high adaptability to the input style of the user.The user need not remember all the key bindings before he can input Chinese and the scheme is also capable of tolerating many variations in character style and/or errors.
Siu Chi Hsu
UIST1