In this research, 3D scan based on depth camera is used to measure, and analyze the breast shape changes in various body positions. 3D breast shapes of women are extracted from data obtained from a depth camera. A measurement method is developed based on cross section lines to get the 2D breast pattern. 3D breast shape and 2D breast patterns in five body positions are determined and compared to each other. To calculate the difference, 3D breast form and volume, also area and form of 2D breast pattern are measured. The results show that the breast form and volume in various body positions is not the same. Women have the highest volume and area of breast in the position ‘posture of 45 elbow-bend and arms to the back’ subsequent the position ‘posture of 45 elbow-bend and arms to the front’, ‘lower arm beside the body ‘ and ‘raise arm overhead and holding on the brow’, respectively. Also in the position ‘holding arm overhead’ the lowest volume of breast for women is observed. The difference of breast volume in the largest and smallest shape is about 23%. The combination of measuring breast volume and form at the same time can provide effective information for bra cup design.

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