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1. (WO2018076977) HEIGHT MEASUREMENT METHOD BASED ON MONOCULAR MACHINE VISION

Pub. No.:    WO/2018/076977    International Application No.:    PCT/CN2017/102997
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Sat Sep 23 01:59:59 CEST 2017
IPC: A61B 5/107
Applicants: NANJING AVATARMIND ROBOT TECHNOLOGY CO., LTD.
南京阿凡达机器人科技有限公司
Inventors: ZHANG, Fan
张帆
WU, Haizhou
吴海周
Title: HEIGHT MEASUREMENT METHOD BASED ON MONOCULAR MACHINE VISION
Abstract:
A height measurement method based on a monocular machine vision, comprising the following steps: an RGB camera (1) on the head of a robot photographing a two-dimensional identification on the head and feet of a person to be tested; the robot calculating a homography matrix of a current field of view according to four corner points of the detected two-dimensional identification; segmenting out a head image area (3) of the person to be tested by means of an image segmentation algorithm, so as to calculate the pixel coordinates of the top of the head of the person to be tested; and then calculating the height of the person to be tested. The height measurement method based on a monocular machine vision is simple in operation and calculation, so that a person to be tested can measure his/her height by himself/herself without help from others. The measurement method is non-contact, thereby further improving the measurement accuracy and accelerating the measurement speed.