-
公开(公告)号：US11222440B2
公开(公告)日：2022-01-11
申请号：US16913144
申请日：2020-06-26
发明人： Xiangkai Lin , Liang Qiao , Fengming Zhu , Yu Zuo , Zeyu Yang , Yonggen Ling , Linchao Bao
摘要： Embodiments of this application disclose a position and pose determining method performed at an electronic device. The method includes: acquiring, by tracking a first feature point extracted from a marked image, position and pose parameters of a first image captured by a camera relative to the marked image; extracting a second feature point from the first image in a case that the first image fails to meet a feature point tracking condition; and acquiring, by tracking the first feature point and the second feature point, position and pose parameters of a second image captured by the camera relative to the marked image, and determining a position and a pose of the camera according to the position and pose parameters, the second image being an image captured by the camera after the first image.
-
公开(公告)号：US11798190B2
公开(公告)日：2023-10-24
申请号：US17543515
申请日：2021-12-06
发明人： Xiangkai Lin , Liang Qiao , Fengming Zhu , Yu Zuo , Zeyu Yang , Yonggen Ling , Linchao Bao
CPC分类号： G06T7/73 , G06V20/20 , G06V40/11 , G06V40/12 , G06T2207/30204
摘要： Embodiments of this application disclose a method for displaying a virtual character in a plurality of real-world images captured by a camera is performed at an electronic device. The method includes: 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; 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.
-
公开(公告)号：US11158083B2
公开(公告)日：2021-10-26
申请号：US16917069
申请日：2020-06-30
发明人： Xiangkai Lin , Liang Qiao , Fengming Zhu , Yu Zuo , Zeyu Yang , Yonggen Ling , Linchao Bao
摘要： Embodiments of this application disclose a position and attitude determining method. The method includes acquiring, by tracking a feature point of a first marked image, position and attitude parameters of an image captured by a camera; using a previous image of a first image as a second marked image in response to the previous image of the first image meeting a feature point tracking condition and the first image failing to meet the feature point tracking condition; acquiring, position and attitude parameters of the image captured by the camera relative to the second marked image; acquiring position and attitude parameters according to the position and attitude parameters of the image relative to the second marked image and position and attitude parameters of each marked image relative to a previous marked image; and determining a position and an attitude of the camera according to the position and attitude parameters.
-
-
搜索结果
3 条记录 (耗时 0.014 秒)
