US 12,232,572 B2
Method for measuring foot size and shape by using image processing
Steena Sun Yong Lee, Seoul (KR); and Ye Ji Choi, Gwangju-si (KR)
Assigned to PERFITT, INC., Daejeon (KR)
Filed by PERFITT, INC., Daejeon (KR)
Filed on Sep. 4, 2023, as Appl. No. 18/241,985.
Application 18/241,985 is a continuation of application No. 16/979,111, granted, now 11,779,084, previously published as PCT/KR2019/002799, filed on Mar. 11, 2019.
Claims priority of application No. 10-2018-0028311 (KR), filed on Mar. 9, 2018.
Prior Publication US 2023/0413952 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/107 (2006.01); A43D 1/02 (2006.01); G06T 7/00 (2017.01); G06T 7/60 (2017.01); G06T 7/73 (2017.01)
CPC A43D 1/025 (2013.01) [A61B 5/1074 (2013.01); G06T 7/0012 (2013.01); G06T 7/60 (2013.01); G06T 7/73 (2017.01)] 19 Claims
OG exemplary drawing
 
1. A method for acquiring information of a foot, the method comprising:
acquiring an image captured by simultaneously photographing a user's foot and an item having a standardized size; and
calculating information of the user's foot from the image,
wherein the calculating the information of the user's foot from the image comprises:
calculating positions of vertices of the item from the image; and
calculating a region where the user's foot is located in the image, and
wherein the calculating the positions of the vertices of the item from the image comprises:
calculating one or more feature points corresponding to a corner in the image; and
selecting the vertices of the item among the one or more feature points, and
wherein the one or more feature points are calculated by using brightness values of pixels in the image, and
wherein the selecting the vertices of the item among the one or more feature points comprises:
calculating candidate points of the vertices; and
selecting, as the vertices of the item, points which are identical to candidate points of the vertices, among the one or more feature points.