Patent ID: 11957217
Assignee: LIMITED LIABILITY COMPANY “FITTIN”
Field: Computer technology (Electrical engineering)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A method for measuring a shape and a size of a human body part, comprising recording a series of photographs taken from different angles of the human body part;
identifying an image of a flat object of a known shape and size on each photograph based on the series of photographs taken from the different angles of the human body part;
using the identified image of the flat object to determine a position and an orientation of a camera;
providing a template for the flat object of the known shape and size, including several rows of points along a contour of the flat object;
isolating an area of the human body part from a background in the image and gradually removing an area of any arbitrary body that does not belong to a projection of the human body part, with frames allowing the projection of a previously found contour of the human body part to be removed from a monolithic voxel array, wherein a particle dynamics method is used to extract the human body part from the background in the image, a boundary between an area of the human body part and the background is represented by a set of sequentially arranged points that form the contour moving under an influence of conditional forces that maintain a coherence of the contour and move the point to a location of significant brightness changes, thereby forming the closed contour that bounds a region of a connected part of the human body, in which each point of the closed contour is considered as a particle that is subject to an action of two forces: a conditional attractive force acting between adjacent contour points, and a force proportional to a numerical estimate of a second derivative of an intensity of the image along the contour.