Moreover, as an air gap distribution is both highly affected by a given body position and critical for clothing insulation, this needs to be taken into account. These values are usually presented in a standing body position and scarcely reported locally for individual body parts. To achieve reliable results, it is necessary to provide precise inputs, such as clothing thermal parameters. Thermo-physiological modelling has become a frequently used and valuable tool for simulations of thermoregulatory responses in a variety of applications, such as building and vehicular comfort studies. The design developed in this paper, which utilizes 100 cameras, facilitates the acquisition of geometric data in a fraction of a second (0.001 s) and provides the capabilities of large, freestanding scanners at a price akin to that of smaller, mobile ones. On the other hand, a high-cost system may lead to limited use of such systems. Because of the non-static nature of the human body, the scanning time is particularly important. In addition to the accuracy, which is one of the main parameters to consider when choosing a 3D scanner, the time and cost of the system are among the most important parameters for evaluating a scanner system in the field of human scanning. The design and development process of the scanner includes its physical structure, electronic components, and the algorithms used for extracting 3D data. This paper presents an image-based scanning system which employs the structure-from-motion method. Basic technologies available in this field range from small and low-cost scanners that must be moved around the body to large and high-cost scanners that can capture all sides of the body simultaneously. The human body is one of the most complicated objects to model because of its complex features, non-rigidity, and the time required to take body measurements. The results are parametric and rigged avatars to be utilized across the platforms. In addition, a new process for avatar generation was developed outside of 3D garment simulation software. This study's aim was to three-dimensionally compare software-provided avatars with 4D scans of real test persons.
For example, moving limbs show unrealistic "water hose effects" of joints where the tube-like arm or leg is simply folded. Yet, the quality of the garment fit evaluation depends on accurately sized avatars and realistic fabric drape combined with deep understanding of the software's simulation process and expertise in garment engineering. Fit models can be made available in all sizes, making simulation across the entire size range possible. It facilitates faster, better communication, which leads to quicker decisions within the development process. Fewer physically sewn prototypes are needed, saving time and money. Garment simulation is widely discussed in industry and research. In the last decade, technological development of 3D garment simulation software has accelerated.
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