عنوان

The moral and political philosophy of Anthony Ashley Cooper, Third Earl of Shaftesbury

TLets525004

The moral and political philosophy of Anthony Ashley Cooper, Third Earl of Shaftesbury

[Thesis]

Harrison, James Francis

Durham University

1970

Ph.D.

Durham University

1970

This thesis describes the design, implementation and application of an integrated and fullyautomated system for interpreting whole-body range data.The system is shown to be capable of generating complete surface models of human bodies, androbustly extracting anatomical features for anthropometry, with minimal intrusion on thesubject. The ability to automate this process has enormous potential for personalised digitalmodels in medicine, ergonomics, design and manufacture and for populating virtualenvironments. The techniques developed within this thesis now form the basis of a commercialproduct.However, the technical difficulties are considerable. Human bodies are highly varied and manyof the features of interest are extremely subtle. The underlying range data is typically noisy andis sparse at occluded areas. In addressing these problems this thesis makes five main researchcontributions.Firstly, the thesis describes the design, implementation and testing of the whole integrated andautomated system from scratch, starting at the image capture hardware. At each stage the tradeoffsbetween performance criteria are discussed, and experiments are described to test theprocesses developed.Secondly, a combined data-driven and model-based approach is described and implemented, forsurface reconstruction from the raw data. This method addresses the whole body surface,including areas where body segments touch, and other occluded areas.The third contribution is a library of operators, designed specifically for shape description andmeasurement of the human body. The library provides high-level relational attributes, an66electronicta pe measure" to extract linear and curvilinear measurements, as well as low-levelshape information, such as curvature.Application of the library is demonstrated by building a large set of detectors to findanthropornetric features, based on the ISO 8559 specification. Output is compared againsttraditional manual measurements and a detailed analysis is presented. The discrepancy betweenthese sets of data is only a few per cent on most dimensions, and the system's reproducibility isshown to be similar to that of skilled manual measurers.The final contribution is that the meshm odelsa nd anthropornetricfe atures,p roducedb y thesystem, have been used as a starting point to facilitate other research, Such as registration ofmultiple body images,d rapingc lothing and advanceds urfacem odellingt echniques.

Harrison, James Francis

Durham University

p

[Thesis]

276903

a

Y