US 11,786,202 B2
Method, system, and medium for analyzing image sequence of periodic physiological activity
Youbing Yin, Kenmore, WA (US); Shubao Liu, College Park, MD (US); Qi Song, Seattle, WA (US); and Ying Xuan Zhi, Seattle, WA (US)
Assigned to SHENZHEN KEYA MEDICAL TECHNOLOGY CORPORATION, Shenzhen (CN)
Filed by SHENZHEN KEYA MEDICAL TECHNOLOGY CORPORATION, Shenzhen (CN)
Filed on Apr. 1, 2021, as Appl. No. 17/219,957.
Application 17/219,957 is a continuation in part of application No. 16/689,048, filed on Nov. 19, 2019, granted, now 10,980,502.
Application 16/689,048 is a continuation of application No. 15/864,398, filed on Jan. 8, 2018, granted, now 10,499,867, issued on Dec. 10, 2019.
Claims priority of provisional application 63/081,276, filed on Sep. 21, 2020.
Prior Publication US 2021/0219934 A1, Jul. 22, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 6/00 (2006.01); G06T 7/20 (2017.01); G06T 7/277 (2017.01); G06T 7/00 (2017.01); G06T 7/269 (2017.01); G06F 16/50 (2019.01)
CPC A61B 6/504 (2013.01) [A61B 6/5217 (2013.01); G06T 7/0012 (2013.01); G06T 7/0016 (2013.01); G06T 7/20 (2013.01); G06T 7/269 (2017.01); G06T 7/277 (2017.01); A61B 6/5264 (2013.01); G06F 16/50 (2019.01); G06T 2207/10081 (2013.01); G06T 2207/30004 (2013.01); G06T 2207/30048 (2013.01); G06T 2207/30101 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method for analyzing an image sequence of a periodic physiological activity, the method comprising:
receiving the image sequence acquired by an imaging device, the image sequence including a plurality of images;
identifying at least one feature portion in a selected image of the image sequence, the at least one feature portion moving responsive to the periodic physiological activity;
detecting, by a processor, the corresponding feature portions in other images of the image sequence; and
determining, by the processor, a phase of the selected image in the image sequence based on the motion of the feature portion.