US 11,798,190 B2
Position and pose determining method, apparatus, smart device, and storage medium
Xiangkai Lin, Shenzhen (CN); Liang Qiao, Shenzhen (CN); Fengming Zhu, Shenzhen (CN); Yu Zuo, Shenzhen (CN); Zeyu Yang, Shenzhen (CN); Yonggen Ling, Shenzhen (CN); and Linchao Bao, Shenzhen (CN)
Assigned to TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED, Shenzhen (CN)
Filed by Tencent Technology (Shenzhen) Company Limited, Shenzhen (CN)
Filed on Dec. 6, 2021, as Appl. No. 17/543,515.
Application 17/543,515 is a continuation of application No. 16/913,144, filed on Jun. 26, 2020, granted, now 11,222,440.
Application 16/913,144 is a continuation of application No. PCT/CN2019/079342, filed on Mar. 22, 2019.
Claims priority of application No. 201810391549.6 (CN), filed on Apr. 27, 2018.
Prior Publication US 2022/0092813 A1, Mar. 24, 2022
Int. Cl. G06T 7/73 (2017.01); G06V 20/20 (2022.01); G06V 40/10 (2022.01); G06V 40/12 (2022.01)
CPC G06T 7/73 (2017.01) [G06V 20/20 (2022.01); G06V 40/11 (2022.01); G06V 40/12 (2022.01); G06T 2207/30204 (2013.01)] 20 Claims
 
1. A method for displaying a virtual character in a plurality of real-world images captured by a camera performed by an electronic device, the method comprising:
capturing an initial real-world image using the camera;
simulating a display of the virtual character in the initial real-world image;
capturing a subsequent real-world image using the camera after a movement of the camera;
determining position and pose updates of the camera associated with the movement of the camera from tracking one or more feature points in the initial real-world image and the subsequent real-world image, including extracting a first feature point in the initial real-world image as a marked image by:
dividing the marked image into a plurality of grid areas; and
extracting, as the first feature point, a feature point from each of at least a subset of the plurality of grid areas; and
adjusting the display of the virtual character in the subsequent real-world image in accordance with the position and pose updates of the camera associated with the movement of the camera.