Jiajian Chen

Learn More
The " Reminiscing View " is a visualization system for browsing hierarchically organized photo and video-clip collections. The current Reminiscing View prototype supports browsing of hierarchical temporal event clusters. Users simply upload their pictures and video clips to a server and their collection is automatically clustered into hierarchical temporal(More)
Non-photorealistic rendering (NPR) is an attractive approach for seamlessly blending virtual and physical content in Augmented Reality (AR) applications. Simple NRP techniques, that use information from a single rendered image, have been demonstrated in real-time AR systems. More complex NRP techniques require visual coherence across multiple frames of(More)
Registration errors between the physical world and computer-generated objects are a central problem in Augmented Reality (AR) systems. Some existing AR systems have demonstrated how to dynamically estimate registration errors based on estimates of spatial errors in the system. Using these error estimates, these systems also demonstrated a number of ways of(More)
Figure 1: A sequence of painted AR frames. A real green cup, a real black cover book, a virtual teapot and a virtual bunny on a table. ABSTRACT A seamless blending of the real and virtual worlds is key to increased immersion and improved user experiences for augmented reality (AR). Photorealistic and non-photorealistic rendering (NPR) are two ways to(More)
Image browsing and searching are some of the most common tasks in daily computer use. Zooming techniques are important for image searching and browsing in a large collection of thumbnail images in a single screen. In this paper we investigate the design and usability of different zoom-in-context views for image browsing and searching. We present two new(More)
OBJECTIVES This study examines the association of neighbourhood low income and income inequality with individual health outcomes in Toronto, Canada's largest census metropolitan area. DATA SOURCES The data are from the cross-sectional component of Statistics Canada's 1996/97 National Population Health Survey (NPHS) and the 1996 Census of Population. (More)
Many augmented reality (AR) applications require a seamless blending of real and virtual content as key to increased immersion and improved user experiences. Photorealistic and non-photorealistic rendering (NPR) are two ways to achieve this goal. Compared with photorealistic rendering, NPR stylizes both the real and virtual content and makes them(More)
In this paper we present PageSpark, a system that automatically converts static magazine content to interactive and engaging reading apps on handheld reading devices. PageSpark enhances the reading experience in three general aspects: page layout reorganization, page element interactions and page transitions. We explored and implemented several design(More)