公开(公告)号：US20230013170A1

公开(公告)日：2023-01-19

申请号：US17932831

申请日：2022-09-16

Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Inventor： Xiangyang WANG ,  Huaifei XING

IPC: G06T7/246

Abstract: A method for detecting a jitter in a video includes obtaining video frames of a video, in which the video frames include a target video frame and a plurality of historical video frames before the target video frame, determining moving distances in a preset distance of the video frames relative to corresponding previous video frames, determining a target amplitude and a target period in the preset direction for the target video frame; and determining that there is a jitter in a video in response to the target amplitude in the preset direction determined for the target video frame being greater than a preset amplitude and the target period being less than a preset period.

公开(公告)号：US20220244057A1

公开(公告)日：2022-08-04

申请号：US17726450

申请日：2022-04-21

Applicant: Beijing Baidu Netcom Science Technology Co., Ltd.

Inventor： Xiangyang WANG ,  Huaifei XING

IPC: G01C21/32 ,  G01C21/00 ,  G06T7/35

Abstract: The present disclosure provides a map data fusion method and apparatus, an electronic device, a medium and a program product. The method includes: acquiring first map data and second map data; based on a first feature descriptor set and a second feature descriptor set included in the first map data and the second map data respectively, determining a set of matching point pairs between a first set of three-dimensional coordinate points and a second set of three-dimensional coordinate points included in the first map data and the second map data respectively; determining a pose transformation matrix between the first map data and the second map data based on the set of matching point pairs; and fusing the first map data and the second map data into third map data based on the pose transformation matrix.