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- Animation (2)
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- Sketching (2)
- Bag-of-features (1)
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- Extensible editors (1)
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- Low-rank and sparse matrix decomposition (1)
- Matrix Factorization (1)
- Multi-touch (1)
- Multiple kernel learning (1)
- Pen and ink illustration (1)
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- Sand animation (1)
- Sketch (1)
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Articles 1 - 9 of 9
Full-Text Articles in Physical Sciences and Mathematics
Factored Similarity Models With Social Trust For Top-N Item Recommendation, Guibing Guo, Jie Zhang, Feida Zhu, Xingwei Wang
Factored Similarity Models With Social Trust For Top-N Item Recommendation, Guibing Guo, Jie Zhang, Feida Zhu, Xingwei Wang
Research Collection School of Computing and Information Systems
Trust-aware recommender systems have attracted much attention recently due to the prevalence of social networks. However, most existing trust-based approaches are designed for the recommendation task of rating prediction. Only few trust-aware methods have attempted to recommend users an ordered list of interesting items, i.e., item recommendation. In this article, we propose three factored similarity models with the incorporation of social trust for item recommendation based on implicit user feedback. Specifically, we introduce a matrix factorization technique to recover user preferences between rated items and unrated ones in the light of both user-user and item-item similarities. In addition, we claim …
A Novel Digital Image Classification Algorithm Via Low-Rank Sparse Bag-Of-Features Model, Xiu-Ming Zou, Huai-Jiang Sun, Sai Yang, Yan Zhu
A Novel Digital Image Classification Algorithm Via Low-Rank Sparse Bag-Of-Features Model, Xiu-Ming Zou, Huai-Jiang Sun, Sai Yang, Yan Zhu
Research Collection School of Computing and Information Systems
Bag-of-features (BoF) is one of the most well-known methods used to represent digital image features because of its simplicity and efficiency. A variety of improved algorithms have been employed to enhance the performance of BoF in characterization. However, challenges in the application of BoF in the field still exist. This study focused on BoF by decomposing local features and presented a novel framework for BoF on the basis of low-rank and sparse matrix decomposition to obtain a more robust and discriminative digital image classification. First, the local feature matrix of a digital image is decomposed into a low-rank matrix and …
Vignette: A Style Preserving Sketching Tool For Pen-And-Ink Illustration With Texture Synthesis, Rubaiat Habib Kazi, Takeo Igarashi, Shengdong Zhao, Richard Christopher Davis, Kenshi Takayama
Vignette: A Style Preserving Sketching Tool For Pen-And-Ink Illustration With Texture Synthesis, Rubaiat Habib Kazi, Takeo Igarashi, Shengdong Zhao, Richard Christopher Davis, Kenshi Takayama
Research Collection School of Computing and Information Systems
Pen-and-ink illustrations take significant amounts of skill, artistry, and patience to create. Digital tools are widely used to accelerate the process; but they provide less artistic freedom and cannot easily capture illustrators’ personal style. Furthermore, these tools disrupt the traditional illustration workflow, because they are tedious and draw attention to dialog boxes and away from the illustration itself. We present Vignette, an interactive tool that facilitates texture creation in pen-and-ink illustrations in a natural way with built in texture synthesis capabilities.
Anyone Can Sketch Vignettes!, Rubaiat Habib Kazi, Takeo Igarashi, Shengdong Zhao, Richard Christopher Davis, Toni-Jan Keith Monserrat
Anyone Can Sketch Vignettes!, Rubaiat Habib Kazi, Takeo Igarashi, Shengdong Zhao, Richard Christopher Davis, Toni-Jan Keith Monserrat
Research Collection School of Computing and Information Systems
Vignette is an interactive system that facilitates texture creation in pen-and-ink illustrations. Unlike existing systems, Vignette preserves illustrators’ workflow and style: users draw a fraction of a texture and use gestures to automatically fill regions with the texture. Our exploration of natural work-flow and gesture-based interaction was inspired by traditional way of creating illustrations. We currently support both 1D and 2D synthesis with stitching. Our system also has interactive refinement and editing capabilities to provide a higher level texture control, which helps artists achieve their desired vision. Vignette makes the process of illustration more enjoyable and that first time users …
Sandcanvas: New Expressions In Sand Animation, Rubaiat Habib Kazi, Kien-Chuan Chua, Shengdong Zhao, Richard Christopher Davis, Kok-Lim Low
Sandcanvas: New Expressions In Sand Animation, Rubaiat Habib Kazi, Kien-Chuan Chua, Shengdong Zhao, Richard Christopher Davis, Kok-Lim Low
Research Collection School of Computing and Information Systems
Sand animation is a performance art technique in which an artist tells stories by creating animated images with sand. This video demonstrates the creative possibilities of SandCanvas, a new multi-touch digital artistic medium inspired by sand animation that simplifies the creation of sand animations. SandCanvas’s color and texture features enable faster, more dramatic transitions, while its mixed media and gesture recording features make it possible to create entirely new experiences. Session recording and frame capture complement these capabilities by simplifying post-production of sand animation performances.
Prototyping Video Games With Animation, Richard Christopher Davis
Prototyping Video Games With Animation, Richard Christopher Davis
Research Collection School of Computing and Information Systems
This paper outlines a proposed design for PlaySketch, a new video game storyboarding system. PlaySketch borrows ideas from the K-Sketch animation sketching system, which allows short animations to be created in minutes or seconds. We build on K-Sketch in four ways. key frame animation capabilities, a branching timeline view, microphone and web-cam support, and hooks to connect to online game design documents.
Playing With Recognizers: A Call For An Extensible Editor, Richard Christopher Davis
Playing With Recognizers: A Call For An Extensible Editor, Richard Christopher Davis
Research Collection School of Computing and Information Systems
The sketch recognition interface community has not produced a ―killer‖ application, because access to sketch recognition technology has been too restricted. If recognition technologies were more freely available for experimentation, powerful new applications would evolve. This paper proposes a rough architecture for an extensible graphical editor that facilitates collaboration between recognition technology developers, user interface designers, and early adopters of sketch recognition interfaces. Only by serving all three communities will we reach the critical mass necessary for killer applications to emerge.
Informal Animation Sketching With K-Sketch, Richard Christopher Davis
Informal Animation Sketching With K-Sketch, Richard Christopher Davis
Research Collection School of Computing and Information Systems
Animation is a powerful medium that is accessible to few, because current animation tools are extremely complex. This complexity arises partially from current tools’ focus on precise, often unnecessary details and partially from the difficulty of finding a small but sufficiently powerful set of tool features. We are designing K-Sketch, an informal 2D animation tool that uses sketching and demonstration to radically reduce the time needed to create an animation. Our field studies investigating the needs of current anima-tion tool users and would-be users are helping us to mini-mize complexity by showing us how to prioritize the many possible tool …
Forms Of Expression For Designing Visual Languages For Animation, Richard Christopher Davis, James A. Landay
Forms Of Expression For Designing Visual Languages For Animation, Richard Christopher Davis, James A. Landay
Research Collection School of Computing and Information Systems
We present further steps in our research into visual languages for animation. Animation is a rich mode of communication that is currently accessible to few, because animation systems are complex. Some systems try to make animation simple but put severe limits on users’ creative expression. Our field studies are demonstrating that would-be animators need to express animation in a wide variety of ways. We are developing a taxonomy of forms of expression for animation that will help the designers of visual languages for animation to determine which expressive forms to support. Our end goal is to build animation sketching systems …