The visual attributes such as shape, color, size have been considered as the most basic form of information encoded in geographic information visualization interface;however, the optimal multi-visual coding forms and ...
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ISBN:
(纸本)9783031601132;9783031601149
The visual attributes such as shape, color, size have been considered as the most basic form of information encoded in geographic information visualization interface;however, the optimal multi-visual coding forms and reasonable quantity are not well defined, nor has it been determined whether the advantage of one-attribute coding is maintained across different multi-visual coding. In this study, we choose four typical visual attributes (text, shape, color, size) in geographic information visualization and argue that the effects of multi-visual coding are affected by the coding forms and the levels of quantity. Our experiment used a within-subjects design, with independent variables of four visual attributes (text, shape, size, color) and the number (1, 2, 3, 4) of visual attributes in multi-visual coding forms. The results support the effects of multi-visual coding in geographic information visualization are modulated not only by the coding characteristics of each visual attribute, but also by the forms and the number of visual attributes in the coding forms.
Visual exploration is essential to the visualization and analysis of densely sampled 3D DTI fibers in biological speciments, due to the high geometric, spatial, and anatomical complexity of fiber tracts. Previous meth...
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Visual exploration is essential to the visualization and analysis of densely sampled 3D DTI fibers in biological speciments, due to the high geometric, spatial, and anatomical complexity of fiber tracts. Previous methods for DTI fiber visualization use zooming, color-mapping, selection, and abstraction to deliver the characteristics of the fibers. However, these schemes mainly focus on the optimization of visualization in the 3D space where cluttering and occlusion make grasping even a few thousand fibers difficult. This paper introduces a novel interaction method that augments the 3D visualization with a 2D representation containing a low-dimensional embedding of the DTI fibers. This embedding preserves the relationship between the fibers and removes the visual clutter that is inherent in 3D renderings of the fibers. This new interface allows the user to manipulate the DTI fibers as both 3D curves and 2D embedded points and easily compare or validate his or her results in both domains. The implementation of the framework is GPU-based to achieve real-time interaction. The framework was applied to several tasks, and the results show that our method reduces the user's workload in recognizing 3D DTI fibers and permits quick and accurate DTI fiber selection.
Many adults suffer from osteoarthritis (OA) with the majority of people over 65 showing radiographic evidence of the disease. To carry out effective diagnosis and treatment, it is necessary to understand the progressi...
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Many adults suffer from osteoarthritis (OA) with the majority of people over 65 showing radiographic evidence of the disease. To carry out effective diagnosis and treatment, it is necessary to understand the progression of cartilage loss and study the effectiveness of therapeutic interventions. Hence, it is important to have accurate, fast diagnosis of the disease. In this paper, we describe a Web-based user interface that enables the direct viewing of 2-D and 3-D image data from the visceral and tissue levels of the biological continuum (i.e., the continuum comprising systems, viscera, tissue, cells, proteins, and genes)-while preserving geometric integrity. This is achieved despite the fact that the data are from different modalities (i.e., magnetic resonance (MR) and tight microscopy). The user interface was tested using image data acquired from a study of articular cartilage thickness in the porcine knee. The interface allows the clinician to view both MR and light microscopy images in an integrated manner-with the information linked geometrically.
Minimally invasive surgery (MIS), while beneficial to patients, leads to new challenges for surgeons and prevents tumors from being localized using finger palpation. A Tactile Sensing System (TSS), consisting of a han...
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ISBN:
(纸本)9781424477098
Minimally invasive surgery (MIS), while beneficial to patients, leads to new challenges for surgeons and prevents tumors from being localized using finger palpation. A Tactile Sensing System (TSS), consisting of a hand-held tactile sensing instrument (TSI) with a visualization interface, was developed to assist in intra-operative tumor localization. This paper presents the calibration of the TSI and its integration with a visualization interface that allows the forces applied to the tissue during palpation to be displayed. Experiments were conducted to assess the suitability of the TSS for the minimally invasive localization of phantom tumors in in vivo porcine lung during video-assisted thoracic surgery (VATS).
Ensuring the safety of oil tank farms is essential to maintaining energy security and minimizing the impact of potential accidents. This paper develops a quantitative regional risk model designed to assess both indivi...
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Ensuring the safety of oil tank farms is essential to maintaining energy security and minimizing the impact of potential accidents. This paper develops a quantitative regional risk model designed to assess both individual and societal risks in oil tank farms, with particular attention to energy-related risks such as leaks, fires, and explosions. The model integrates factors like day-night operational variations, weather conditions, and risk superposition to provide a comprehensive and accurate evaluation of regional risks. By considering the cumulative effects of multiple hazards, including those tied to energy dynamics, and the stability and validity of the model are researched through Monte Carlo simulations and case application. The results show that the model enhances the reliability of traditional risk assessment methods, making it more applicable to oil tank farm safety concerns. Furthermore, this study introduces a practical tool that simplifies the risk assessment process, allowing operators and decision-makers to evaluate risks without requiring in-depth technical expertise. The methodology improves the ability to safeguard oil tank farms, ensuring the stability of energy supply chains and contributing to broader energy security efforts. This study provides a valuable method for researchers and engineers seeking to enhance regional risk calculation efficiency, with a specific focus on energy risks.
Vision -based tactile sensors (VBTS) have gradually garnered attention for their high performance. However, there is a lack of detailed technology summaries and available tools for process formulation. To simplify the...
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Vision -based tactile sensors (VBTS) have gradually garnered attention for their high performance. However, there is a lack of detailed technology summaries and available tools for process formulation. To simplify the development flow, this paper proposes a process formulation system (PFS) and establishes a visualization interface based on QT. The developer inputs the design goal, and the system automatically corrects these goals and then matches the process schemes by dictionary search. Following the fabrication sequence, the system outputs a complete reference fabrication flow. Furthermore, the PFS provides more comprehensive process details than large models. In addition, the PFS universality is verified via representative VBTS cases. A multimodal visuo-tactile skin (VTS) is developed with the PFS. The fabrication process of elastomer and coating is optimized based on the reference process. The results show that the VTS prototype achieves micron -level spatial resolution, high sensitivity, and high abrasion resistance. Consequently, the PFS is expected to provide technology guidance and assistant development for beginners and developers in this area.
Medical applications and clinical environments set new demands on sensor network technologies, one of the key research areas in computer science and health telemonitoring. This paper presents a wireless systematic arc...
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ISBN:
(纸本)9781467362542
Medical applications and clinical environments set new demands on sensor network technologies, one of the key research areas in computer science and health telemonitoring. This paper presents a wireless systematic architecture, a hardware and software platform based on low-power integrated circuits, on-chip signal processing components and communications. The structure of such architecture consists of lightweight miniature nodes placed strategically on patients to allow non-invasive, continuous and ambulatory health monitoring and inexpensive, to provide medical readings on local devices and clinical records applications on web browsers and mobile devices. The main goal of this project is the development of an autonomous wireless monitoring system for vital signs with battery-powered nodes and medical sensors. It acquires, stores and transmits signals to determine the states of oxygenation, heart and respiratory rates, and temperature in real time to a central monitoring station, that integrates a touchscreen graphical interface and mini-OLED displays. This work provides self-monitored environments minimizing the requirements for primary needs, early medical attention, optimizing premature diagnosis and comfort of patients, through a set of algorithms that contribute to the performance of the nodes generating significant benefits on human lifetime through early disease detection.
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