Jiajian Chen

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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)
As a crucial issue in computer network security, anomaly detection is receiving more and more attention from both application and theoretical point of view. In this paper, a novel anomaly detection scheme is proposed. It can detect anomaly network traffic which has extreme large value on some original feature by the major component, or does not follow the(More)
BACKGROUND The aim of the present study was to investigate potential risk factors for synchronous bilateral breast cancer sBBC). METHODS A retrospective analysis was performed of patients diagnosed and treated with operable bilateral breast cancer (BBC) between June 2007 and December 2011. Risk factors for sBBC were evaluated in this cohort and further(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)
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)
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)
A 15-year single-center retrospective study of 18,502 patients Abstract The aim of the study was to review the surgical trends in breast cancer treatment in China over the past 15 years and to explore the possible factors related to the choice of surgical modality. The medical records of 18,502 patients with unilateral early stage breast cancer who(More)
Sclerosing adenosis (SA) is a less common histopatholo-gical lesion of the breast that can coexist with proliferative lesions as well as malignancies. We aimed to analyze the clinicopathological characteristics of SA and to investigate the radiological features of SA. Patients who underwent breast surgery at our institute from 2007 to 2013 were(More)