公开(公告)号：US20170046843A1

公开(公告)日：2017-02-16

申请号：US15207101

申请日：2016-07-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhaoxiang Liu ,  Shiguo Lian

IPC: G06T7/00 ,  H04N5/247 ,  H04N9/76 ,  G06T3/40 ,  H04N5/232 ,  G02B27/20 ,  G06T7/20

CPC classification number: H04N5/23238 ,  G02B27/20 ,  G06F3/03 ,  G06F3/0304 ,  G06F3/03542 ,  G06F3/0425 ,  H04N5/232 ,  H04N5/247 ,  H04N9/3161 ,  H04N9/3194

Abstract: A method for detecting a location of a laser point on a screen includes acquiring a first image frame captured by a first camera among N cameras; detecting whether a first laser point exists in the first image frame; and when the first laser point exists in the first image frame, and no laser point exists in an image frame captured by another camera except the first camera among the N cameras, using the first laser point as the laser point on the screen, and acquiring information about a location of the first laser point on the screen. In the present application, images captured by all cameras do not need to be fused first; instead, laser point detection is performed directly on a captured image frame. This greatly improves efficiency of the laser point detection and improves detection accuracy.

Abstract translation: 一种用于检测激光点在屏幕上的位置的方法包括：获取由N个相机中的第一相机拍摄的第一图像帧; 检测第一激光点是否存在于第一图像帧中; 并且当在第一图像帧中存在第一激光点时，在N个相机之中除了第一相机之外的另一相机捕获的图像帧中不存在激光点，使用第一激光点作为屏幕上的激光点，并且获取 关于第一激光点在屏幕上的位置的信息。 在本申请中，所有相机拍摄的图像首先不需要融合; 相反，激光点检测在捕获的图像帧上直接执行。 这大大提高了激光点检测的效率，提高了检测精度。

公开(公告)号：US10129471B2

公开(公告)日：2018-11-13

申请号：US15207101

申请日：2016-07-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhaoxiang Liu ,  Shiguo Lian

IPC: G06K9/00 ,  H04N5/232 ,  G02B27/20 ,  H04N5/247 ,  H04N9/31 ,  G06F3/03

Abstract: A method for detecting a location of a laser point on a screen includes acquiring a first image frame captured by a first camera among N cameras; detecting whether a first laser point exists in the first image frame; and when the first laser point exists in the first image frame, and no laser point exists in an image frame captured by another camera except the first camera among the N cameras, using the first laser point as the laser point on the screen, and acquiring information about a location of the first laser point on the screen. In the present application, images captured by all cameras do not need to be fused first; instead, laser point detection is performed directly on a captured image frame. This greatly improves efficiency of the laser point detection and improves detection accuracy.

公开(公告)号：US09965026B2

公开(公告)日：2018-05-08

申请号：US15060976

申请日：2016-03-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai Wang ,  Shiguo Lian ,  Zhaoxiang Liu

IPC: G06F3/00 ,  G06F3/147 ,  G06F3/01 ,  G06K9/00 ,  G06T19/00 ,  H04N5/232 ,  G06F3/14

CPC classification number: G06F3/005 ,  G06F3/011 ,  G06F3/012 ,  G06F3/1415 ,  G06F3/1462 ,  G06F3/147 ,  G06F2203/012 ,  G06K9/00382 ,  G06T19/006 ,  G09G2320/02 ,  G09G2320/0261 ,  G09G2340/04 ,  G09G2340/0464 ,  G09G2370/022 ,  H04N5/23206 ,  H04N5/23293 ,  H04N5/23296

Abstract: A method, a device, and a system for interactive video display, relate to the field of multimedia technologies, and can resolve a problem in the prior art that browsing experience of a user is not real because a visible region is simply changed only according to a panning change of a location of the user. A specific solution is acquiring posture information of a user, where the posture information includes viewing angle information of the user and location information of the user, and adjusting, according to the posture information, an unadjusted visible region, in a video, for being displayed on a client in order to obtain an adjusted visible region currently for being displayed on the client. The embodiments of the present invention are used for performing interactive video display.

公开(公告)号：US20160259403A1

公开(公告)日：2016-09-08

申请号：US15060976

申请日：2016-03-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai Wang ,  Shiguo Lian ,  Zhaoxiang Liu

IPC: G06F3/00 ,  H04N5/232 ,  G06T19/00 ,  G06K9/00

CPC classification number: G06F3/005 ,  G06F3/011 ,  G06F3/012 ,  G06F3/1415 ,  G06F3/1462 ,  G06F3/147 ,  G06F2203/012 ,  G06K9/00382 ,  G06T19/006 ,  G09G2320/02 ,  G09G2320/0261 ,  G09G2340/04 ,  G09G2340/0464 ,  G09G2370/022 ,  H04N5/23206 ,  H04N5/23293 ,  H04N5/23296

Abstract: A method, a device, and a system for interactive video display, relate to the field of multimedia technologies, and can resolve a problem in the prior art that browsing experience of a user is not real because a visible region is simply changed only according to a panning change of a location of the user. A specific solution is acquiring posture information of a user, where the posture information includes viewing angle information of the user and location information of the user, and adjusting, according to the posture information, an unadjusted visible region, in a video, for being displayed on a client in order to obtain an adjusted visible region currently for being displayed on the client. The embodiments of the present invention are used for performing interactive video display.

Abstract translation: 用于交互式视频显示的方法，设备和系统涉及多媒体技术领域，并且可以解决现有技术中的用户的浏览体验不是真实的问题，因为可视区域仅根据 用户的位置的平移改变。 具体的解决方案是获取用户的姿势信息，其中姿势信息包括用户的视角信息和用户的位置信息，并且根据姿势信息调整视频中的未被调整的可见区域以供显示 在客户端上以获得当前被显示在客户端上的经调整的可见区域。 本发明的实施例用于执行交互式视频显示。