Research And Implementation Of Health Data 3D Visualization Technology

With the improvement of medical information,more and more health data is stored and mainly used to guide medical research and to determine the physical condition of patients.The analysis of health data can efficiently and accurately help clinical treatment and reduce medical costs.The most effective and common method to analyze the health data is to visualize and analyze the data.Therefore,the research on the visualization of health data is very important in theory and practice.This thesis conducts the research from three aspects: health data visualization layout,mapping and interaction,mainly by using three-dimensional layout and mapping.Meanwhile,the thesis designs and implements HealthGL three-dimensional visualization engine,and through the combination of the actual health data such as diabetes and liver cirrhosis on the engine to verify the correctness of the relevant visualization layouts,mapping and interaction technology and compare the effects of visualization.This thesis proposes two kinds of visualization layout methods: the visualization layout technology based on index health data and the visualization layout technology based on scatter diagram.The former mainly uses a parallel coordinate layout as the prototype,through a series of layout methods,including the visualization clustering based on distance and layout optimization based on attractive force,allows users to analyze the health data by using visualization methods more visually and efficiently.To some extent,it solves the problem that the data distribution is not obvious and the line segments are dense in the parallel coordinates.The latter mainly use scatter diagram as the prototype,through the visualization clustering based on membership and three-dimensional scatter layout technology based on coordinates arrangement,the problem that the overall distribution of three-dimensional scatter plot is not clear and the visualization dimension is limited can be solved.This thesis proposes the visualization mapping and interaction methods for different layouts and data attributes.The former is the most important content of data visualization.Aiming at different types of layouts,the thesis proposes the visualization mapping methods of point layout and line layout.Point layout mapping is used to map the data and graphics in point layout,the thesis puts forward the methods of point layout adaptive mapping and random movement of data points;line layout mapping is used to map the data and graphics in line layout,the thesis puts forward the methods of line layout adaptive mapping and line jitter.The latter proposes and analyze the filtering interaction and parallel coordinate interaction to enhance the visualization effect.