US 11,941,821 B2
Image sleep analysis method and system thereof
Bo-Zong Wu, Taipei (TW); Meng-Ta Chiang, Taipei (TW); Chia-Yu Chen, Taipei (TW); and Shih-Yun Shen, Taipei (TW)
Assigned to YUN YUN AI BABY CAMERA CO., LTD., Taipei (TW)
Filed by Yun yun AI Baby camera Co., Ltd., Taipei (TW)
Filed on Dec. 30, 2020, as Appl. No. 17/138,510.
Claims priority of application No. 109115409 (TW), filed on May 8, 2020.
Prior Publication US 2021/0350553 A1, Nov. 11, 2021
Int. Cl. G06T 7/246 (2017.01); G06V 40/20 (2022.01); G10L 25/78 (2013.01); G16H 15/00 (2018.01)
CPC G06T 7/248 (2017.01) [G06V 40/20 (2022.01); G10L 25/78 (2013.01); G16H 15/00 (2018.01); G06T 2207/20081 (2013.01); G06T 2207/30196 (2013.01); G06T 2207/30232 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An image sleep analysis method, comprising steps of:
(a) obtaining a plurality of visible-light images of a body to be monitored;
(b) comparing the visible-light images to determine a plurality of image differences among the visible-light images and determining a first image position of each of the image differences;
(c) identifying a plurality of features of each of the visible-light images and determining a second image position of each of the features;
(d) determining a motion intensity of each of the features according to the first image positions of the image differences and the second image positions of the features; and
(e) recording and analyzing a variation of the motion intensities.