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User interactive techniques for computer-assisted medical applications. / 计算机辅助医疗系统中的用[hu]交互技术 / 计算机辅助医疗系统中的用戶交互技术 / Ji suan ji fu zhu yi liao xi tong zhong de yong [hu] jiao hu ji shu / Ji suan ji fu zhu yi liao xi tong zhong de yong hu jiao hu ji shuJanuary 2011 (has links)
書名中的[hu], 字形為: '點'在上, '尸'在下. / Shu ming zhong de [hu], zi xing wei: 'dian' zai shang, 'shi' zai xia. / Meng, Qiang. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (leaves 92-99). / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgement --- p.iv / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- User Interaction in Medical Applications --- p.1 / Chapter 1.2 --- UI Technologies and Challenges for Medical Systems --- p.2 / Chapter 1.3 --- Main Contributions of the Thesis --- p.5 / Chapter 1.4 --- Thesis Organization --- p.8 / Chapter 2 --- Interactive Vascular Designing and Modeling --- p.9 / Chapter 2.1 --- Introduction and Related Works --- p.10 / Chapter 2.2 --- Vascular Designing and Modeling System Overview --- p.12 / Chapter 2.3 --- Data Structure for Vascular Tree --- p.13 / Chapter 2.4 --- VesselEdit 一 A Freehand Vessel Skeleton Generator --- p.17 / Chapter 2.4.1 --- 2D scribble to create 3D vessel tree --- p.17 / Chapter 2.4.2 --- 3D Skeleton Editing --- p.18 / Chapter 2.5 --- Feature Point Selection and Spline Segment Construction --- p.18 / Chapter 2.5.1 --- Feature Point Update --- p.18 / Chapter 2.5.2 --- Feature Point Selection --- p.20 / Chapter 2.5.3 --- Spline Segment Construction --- p.20 / Chapter 2.6 --- Vascular Tree Visualization --- p.22 / Chapter 2.6.1 --- Curve Frame --- p.22 / Chapter 2.6.2 --- Bifurcation Frame --- p.24 / Chapter 2.6.3 --- Frame Junction and Blending --- p.25 / Chapter 2.6.4 --- Transparency Enhancement --- p.27 / Chapter 2.7 --- Modeling Case Study and Results --- p.28 / Chapter 2.7.1 --- Normal cases --- p.28 / Chapter 2.7.2 --- Pathological Cases for Vascular Interventional Simulation --- p.28 / Chapter 2.7.3 --- Timing Experiments --- p.30 / Chapter 3 --- Vascular Intervention Simulator System --- p.32 / Chapter 3.1 --- Introduction to Vascular Intervention Simulator --- p.33 / Chapter 3.2 --- Overview of the endovascSim System --- p.34 / Chapter 3.3 --- Guidewire Sensing Hardware Interface Design --- p.36 / Chapter 3.3.1 --- Catheter & Guidewire Motion Sensing Requirements --- p.36 / Chapter 3.3.2 --- Motion Sensing with Trackball Mouse --- p.38 / Chapter 3.3.3 --- Multi-Mouse Device for Catheter & Guidewire Motion Sens- ing --- p.39 / Chapter 4 --- User Interaction for Visible Human Slice Navigation --- p.42 / Chapter 4.1 --- Introduction and Related Works --- p.43 / Chapter 4.2 --- VH Slice Navigation System Overview --- p.44 / Chapter 4.3 --- VH Data Compression --- p.45 / Chapter 4.3.1 --- VH Data Down Sampling --- p.46 / Chapter 4.3.2 --- Bounding Box Compression --- p.47 / Chapter 4.3.3 --- DXT Compression --- p.51 / Chapter 4.3.4 --- Compressed Visible Human Data Format --- p.53 / Chapter 4.4 --- Slice Pixels Calculation --- p.55 / Chapter 4.4.1 --- Pixels Color Computation --- p.55 / Chapter 4.4.2 --- CPU-GPU Cooperative Computation Framework --- p.58 / Chapter 4.4.3 --- CPU-GPU Computation Balancing Method --- p.60 / Chapter 4.5 --- User Interaction Design --- p.63 / Chapter 4.5.1 --- Slice navigation and haptic rendering --- p.64 / Chapter 4.5.2 --- Software UI layout and slice bookmarking --- p.66 / Chapter 4.6 --- System Implementation and Experimental Result --- p.68 / Chapter 5 --- Volume Data Exploration with Tangible Handheld Device --- p.71 / Chapter 5.1 --- Introduction and Related Works --- p.72 / Chapter 5.1.1 --- Introduction to Our Exploration System --- p.72 / Chapter 5.1.2 --- Ralated Works --- p.74 / Chapter 5.2 --- System Overview --- p.75 / Chapter 5.2.1 --- Hardware --- p.76 / Chapter 5.2.2 --- Server Program --- p.77 / Chapter 5.2.3 --- Client Program --- p.78 / Chapter 5.3 --- "Volumetric Data, Exploration and Annotation" --- p.78 / Chapter 5.3.1 --- Volume Data Manipulation --- p.79 / Chapter 5.3.2 --- "Volume Data, Slicing" --- p.80 / Chapter 5.3.3 --- "Volume Data, Visual Annotation" --- p.82 / Chapter 5.3.4 --- Volume Data Measurement --- p.84 / Chapter 6 --- Conclusion and Future Directions --- p.86 / Chapter 6.1 --- Conclusion --- p.86 / Chapter 6.2 --- Future Works --- p.88 / Publication List --- p.90 / Bibliography --- p.92
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A 6-degree of freedom input device for interactive virtual environment applications. / 與虛擬環境互動的六自由度輸入裝置 / Six-degree of freedom input device for interactive virtual environment applications / Yu xu ni huan jing hu dong de liu zi you du shu ru zhuang zhiJanuary 2012 (has links)
Ko, Hoi Fung. / "November 2011." / Thesis (M.Phil.)--Chinese University of Hong Kong, 2012. / Includes bibliographical references (p. 121-125). / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgement --- p.iv / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Motivation and Objective --- p.1 / Chapter 1.2 --- Contribution --- p.9 / Chapter 1.3 --- Organization of the Thesis --- p.11 / Chapter 2 --- Background Study --- p.12 / Chapter 2.1 --- Review on 3D Tracking Techniques --- p.13 / Chapter 2.1.1 --- Mechanical base --- p.13 / Chapter 2.1.2 --- Acoustic base --- p.14 / Chapter 2.1.3 --- Magnetic base --- p.15 / Chapter 2.1.4 --- Inertial base --- p.17 / Chapter 2.1.5 --- Optical base --- p.18 / Chapter 2.2 --- Summary --- p.19 / Chapter 3 --- Theory and Methodology --- p.21 / Chapter 3.1 --- Design Framework --- p.21 / Chapter 3.1.1 --- Problem Definition --- p.22 / Chapter 3.1.2 --- Concept --- p.22 / Chapter 3.2 --- Finding the orientation --- p.23 / Chapter 3.2.1 --- Measuring the rotation --- p.23 / Chapter 3.2.2 --- Sensor fusion --- p.26 / Chapter 3.3 --- Finding the translational motion --- p.32 / Chapter 3.3.1 --- Translational motion --- p.32 / Chapter 3.3.2 --- Laser speckle pattern --- p.35 / Chapter 4 --- Implementation --- p.38 / Chapter 4.1 --- Hardware Configuration --- p.38 / Chapter 4.1.1 --- Accelerometer --- p.39 / Chapter 4.1.2 --- Gyroscope --- p.40 / Chapter 4.1.3 --- Digital Compass --- p.41 / Chapter 4.1.4 --- Optical flow chip --- p.42 / Chapter 4.1.5 --- Microcontroller --- p.43 / Chapter 4.2 --- Software Implementation --- p.45 / Chapter 4.2.1 --- On the Microcontroller --- p.45 / Chapter 4.2.2 --- On the PC --- p.47 / Chapter 5 --- Experimental Results --- p.50 / Chapter 5.1 --- Experiments on orientation estimation --- p.50 / Chapter 5.1.1 --- Overall Experimental Setup --- p.51 / Chapter 5.1.2 --- Experiment 1: The improvement of static accuracy by utilising two-axis measurement method --- p.52 / Chapter 5.1.3 --- Experiment 2: The improvement of the dynamic response with Kalman filter and gyroscope --- p.55 / Chapter 5.1.4 --- Experiments 3: The static accuracy of the compass module --- p.59 / Chapter 5.1.5 --- Experiment 4: The dynamic accuracy of the compass module with Kalman filter and gyroscope --- p.63 / Chapter 5.1.6 --- Experiment 5: Kalman filter tuning --- p.64 / Chapter 5.2 --- Experiment on Translational accuracy --- p.67 / Chapter 5.2.1 --- Experiment 6: The relation between the output of the chip and the actual displacement --- p.68 / Chapter 5.2.2 --- Experiment 7: Tracking ability with different materials --- p.70 / Chapter 6 --- The Haptic module --- p.73 / Chapter 6.1 --- Introduction --- p.73 / Chapter 6.2 --- Theory of operation --- p.75 / Chapter 6.3 --- Implementation --- p.77 / Chapter 6.4 --- Experiment and evaluation --- p.80 / Chapter 6.4.1 --- Experiment 1: Calibration of the spring . --- p.80 / Chapter 6.4.2 --- Experiment 2: Latency on force output . . --- p.82 / Chapter 6.5 --- Possible applications --- p.85 / Chapter 7 --- 3D input for immersive display --- p.87 / Chapter 7.1 --- Methodology --- p.88 / Chapter 7.1.1 --- Tracking method --- p.89 / Chapter 7.2 --- Implementation --- p.96 / Chapter 7.2.1 --- Hardware setup --- p.96 / Chapter 7.2.2 --- Software implementation --- p.97 / Chapter 7.2.3 --- Setup Calibration --- p.98 / Chapter 7.2.4 --- Laser Spot Detection --- p.99 / Chapter 7.2.5 --- Pose Estimation --- p.100 / Chapter 7.2.6 --- State Tracking --- p.102 / Chapter 7.3 --- Experiment --- p.105 / Chapter 7.3.1 --- Experiment on translational motion --- p.105 / Chapter 7.3.2 --- Experiment on rotational motion --- p.106 / Chapter 7.3.3 --- Experiment on tracking ability --- p.108 / Chapter 7.4 --- Application --- p.109 / Chapter 8 --- Limitations and Discussions --- p.110 / Chapter 8.1 --- The limitation of the orientation tracking module --- p.110 / Chapter 8.2 --- The limitation of the translational motion tracking module --- p.111 / Chapter 8.3 --- The limitation of the haptic module --- p.112 / Chapter 8.4 --- The limitation of the tracking cube setup --- p.113 / Chapter 8.5 --- Comparison of the result of utilizing simple moving average filter and Kalman filter --- p.114 / Chapter 8.6 --- Comparison with other devices on the market --- p.115 / Chapter 8.7 --- Future work --- p.115 / Chapter 9 --- Conclusion --- p.117 / Bibliography --- p.121
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Visuality and tacit knowledge the application of multiple intelligences theory to the design of user expeience in interactive multimedia contextsHuang, Chi, n/a January 2006 (has links)
The major challenge for multimedia designers is to create user experiences that enrich the reception of content, designer�s traditional reliance on intuition not ensuring audience�s interest or understanding. The developing philosophy of user-centred design argues that designers should begin from an appreciation of their audience. In design there are various positions on how to achieve this, ranging from traditional market research through psychological, ethnographic, anthropological and sociological research to the direct involvement of users in the design process. This study draws on established knowledge about the cognitive processes, psychological motivations and preferences of user groups to advance a model for better-targeted and more effective design. In particular, it uses Howard Gardener�s multiple intelligences theory to extend design thinking. Where a specific audience is apparent multiple intelligences theory implies that (1) the interface should match user�s perceptual tools, cognitive styles and responses and (2) there is far greater scope than presently recognized to vary the design of the graphical user interface. The research explores how interactive multimedia can harness the �language of vision� (Johannes Itten) for certain audiences, in this case Taiwanese drawing students aiming to enter tertiary art and design programs where high academic drawing skills are an important selection criterion. The high �visual intelligence� of the target audience indicates their heightened capacity to process visual concepts and elements. The application of Gardner�s ideas is a speculative one, based on hypothesis and the formulation of an experimental graphical user interface environment built around predominantly visual cues. The designed outcome incorporates knowledge and understanding that is widely applicable to GUI design, challenging designers to develop multimedia products with innovative, imaginative design approaches that cater for the different needs and interests of users where the audience is a specific and identifiable one.
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The use of analyst-user cognitive style differentials to predict aspects of user satisfaction with information systemsMullany, Michael John Unknown Date (has links)
This study was primarily an empirical investigation in the field of Information Systems (IS) and the related fields of occupational psychology and management. It focussed specifically on the concept of user satisfaction, the construct of cognitive style as applied to users and systems analysts, and their interrelationships. Prior studies were found rarely to investigate the changes in user satisfaction during system usage. Further, any reference to cognitive style in the IS literature proved to be sparse, open to question and discouraging in terms of its value. By developing and using a new instrument, the System Satisfaction Schedule, or SSS, the present study was able empirically to demonstrate clear patterns of changing user satisfaction during system usage. These were demonstrated, both as a general trend and in terms of its relationship to the cognitive styles of the key players (analyst and user) involved in system development and maintenance. Cognitive style was measured using Kirton's Adaption-innovation Inventory, or KAI. This study was thus able to suggest new rules for system development based on the assessments of the cognitive styles of both users and systems analysts. These rules focussed primarily on simple team choice: which analyst to put with which user. However, inferences for larger system development teams were drawn and suggestions for further research duly made. The present study thus also contributes to the successful practice of system development. To give effect to the above, this study set out to investigate empirically the way user satisfaction changes over 1½ to 2 years of system usage and, as mentioned above, the way user satisfaction is impacted by the cognitive styles of the user and the systems analyst. Most significantly, relationships were studied between user satisfaction and the difference in cognitive style between the analyst and user. It was found that user satisfaction generally rises linearly with usage, and that while the size of the analyst user cognitive differential does negatively impact user satisfaction over most of the time of system use, this effect is only particularly strong for two short periods; one within the first four months of usage and the other in the last three. From these results the new rules for system development mentioned above, followed. In terms of the decline of users' mean perceived severities of individual problems, the exponential decay and reciprocal models were found to fit the data the best. This study developed a new model for the motivation to use, develop or maintain a system (the Mechanical Model), based on its own results and Herzberg's two-factor theory of motivation. In this, Herzberg's hygiene factors have been replaced with the concept of dissatisfiers. These are measured as expressions of dissatisfaction as and when they occur. Their use removes the researcher's need, when designing user satisfaction instruments, to speculate on complete lists of factors which may satisfy users, and which may date as technology and other contextual factors change.
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Walking tree methods for biological string matchingHsu, Tai C. 20 June 2003 (has links)
Graduation date: 2004
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Visualization, implementation, and application of the Walking Tree heuristics for biological string matchingCavener, Jeffrey Douglas 11 August 1997 (has links)
Biologists need tools to see the structural relationships encoded in biological
sequences (strings). The Walking Tree heuristics calculate some of these relationships.
I have designed and implemented graphic presentations which allow the
biologist (user) to see these relations. This thesis contains background information
on the biological sequences and some background on the Walking Tree heuristics. I
demonstrate my methods by showing a visual matching of mitochondrial genomes.
I also show matchings based on amino acids and on hydrophobicity. I also show how
the parameters of the visualization can be varied to produce more useful pictures. I
implemented a parallel version of the Walking Tree heuristic and used it to produce
a phylogenetic tree for picornaviruses. I also implemented several user interfaces.
These programs are available on my WWW page which allows a user to produce a
picture of a matching by giving the sequences in Gen Bank format and by making a
few mouse clicks. / Graduation date: 1998
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Toward a layout-based predictor of user effort required to achieve software system usability goals /Feldman, Liam, January 1900 (has links)
Thesis (M.S.)--Texas State University--San Marcos, 2009. / Vita. Appendices: leaves 49-50 . Includes bibliographical references (leaves 51-54).
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Issues in preschool concept mapping an interaction design perspective /Gomez, Gloria. January 2009 (has links)
Thesis (PhD) - Faculty of Design, Swinburne University of Technology, 2008. / Submitted in partial fulfillment of the requirements of the degree of Doctor of Philosophy, [Faculty of Design], Swinburne University of Technology - 2008. Typescript. Bibliography: p. 348-357.
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Automatic visual display design and creation /Salisbury, Leslie Denise Pinnel, January 2001 (has links)
Thesis (Ph. D.)--University of Washington, 2001. / Vita. Includes bibliographical references (p. 155-162).
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The relationship between learners' goal orientation and their cognitive tool use and achievement in an interactive hypermedia environmentKatz, Heather Alicia. January 2001 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2001. / Vita. Includes bibliographical references. Available also from UMI/Dissertation Abstracts International.
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