The SizeChina Project created the first-ever digital database of Asian head and face sizes for use by manufacturers and designers internationally. Through 3D digital scanning, measurement data were collected from males and females in six different target zones on the Chinese mainland in collaboration with Chinese universities and local industries with experience in ergonomics and human factors. The six scanning locations are: Guangzhou, Chongqing, Hangzhou, Langzhou, Beijing, and Shenyang.
The raw scanning data in the form of point clouds were brought into advanced CAD software for sorting and statistical synthesizing, creating a reference description of the form of digital modeling of average head and face shapes of the Chinese population.
The Scanning Process
The participants will be introduced to the project, describing its significance and methodology. Included in the video are also precautionary points required to ensure good scanning result
Step 2: Questionnaire
Survey by questionnaire will be made to get the basic information of the volunteer. For example: the age, gender, original location of his family, where he (she) grows up, etc. The data will be directly input into a computer database for analysis and classification.
Step 3: Photography
Photo for the participants will be taken for reference and attached to the survey form.
Step 4: Measurement
The participating subject will first have the body weight and height measured. Then, they will have the head measured. Measure by caliper and tape the circumference, length and breadth of the head so as to be a check for the scanning data.
Step 5: Landmarking
14 Points are to be marked on people’s faces to help confirm the orientation when we start scanning. Then, the landmarks are covered with adhesive dots.
Step 6: Wig Cap Adjustment
A nylon wig cap is donned to compress the hair, making sure to tuck in the hair around the edges and around the ear. It helps flatten the hair to ensure getting a better scanning result.
Step 7: Scan and Data Saving
Get the parameters of the human head by 3D scanning machine, and save the data file. It takes 17 seconds.
Step 8: Form Collection and Data Check
In the end, the questionnaire form will be collected. The validity of the scanning data will be checked to find out whether there is any omission or mistake.