Abstract: A positioning method, a terminal and a server, and relates to the field of positioning and navigation, for performing accurate global positioning. The positioning method includes: a terminal sends a first global coordinate to a server, the server receives the first global coordinate from the terminal, the server searches for corresponding local map data and mapping parameters corresponding to the local map data according to the first global coordinate, the server sends the local map data and the mapping parameters to the terminal, and the terminal obtains a local coordinate of the current location according to the local map data and surrounding environment information of the current location, and obtains a second global coordinate of the current location according to the local coordinate of the current location and the mapping parameters. The embodiment of the present disclosure is applied to accurate positioning.

Abstract: The embodiment of the present invention provides a navigation method and apparatus, and a terminal device, relating to the technical field of navigation, and for reducing or avoiding the impact of network delay on real-time obstacle detection and avoidance. The method includes: detecting an obstacle to obtain first obstacle information; obtaining scene information and sending the scene information to a remote server, so that the remote server obtains second obstacle information according to the scene information, wherein the accuracy of the second obstacle information is greater than the accuracy of the first obstacle information; and if the second obstacle information sent by the remote server is not received, avoiding the obstacle according to the first obstacle information. The embodiment of the present invention is applied to navigation.

Abstract: The embodiment of the present invention discloses an auxiliary display method and apparatus, and a display system, and relates to the artificial intelligence and enhanced display technology. An image displayed on a back end client may be optimized, and necessary indication is provided for the service personnel to reduce the workload thereof. The method includes: obtaining data collected by a sensor of a front end device, the collected data comprise image data; analyzing the collected data to generate an indication identifier of a predetermined target in the image data; and synthesizing the indication identifier and the image data in the collected data into display data, and displaying the display data through a display device, wherein the indication identifier is associated with the predetermined target in the image data. The embodiment of the present invention is applied to auxiliary display.

Abstract: The embodiment of the present disclosure discloses an intelligent blind guide method and apparatus, and relates to the field of artificial intelligence, so as to solve the problem that an intelligent blind guide system requires the whole-process intervention of an artificial customer service staff, which results in high work intensity. The intelligent blind guide method includes: obtaining a confidence of an intelligent blind guide according to sensor information, wherein the confidence indicates the reliability of blind guide information generated according to the sensor information without artificial decision; generating the blind guide information according to the sensor information if the confidence is greater than or equal to a preset threshold, and importing artificial decision to generate the blind guide information if the confidence is less than the preset threshold. The embodiment of the present disclosure is applied to a blind guide helmet.

Abstract: In the field of man-machine interaction technologies, a gesture-based object measurement method and apparatus, which are used to improve measurement efficiency. According to this method, after image information is collected, contour information of a to-be-measured object is automatically extracted and partitioned off, and a measurement parameter value such as a length, an area, or a volume is calculated on this basis. In this way, not only real-time online measurement is implemented, a measurement process is simpler, and more convenient, visual, and effective, and augmented reality (AR) measurement efficiency can be improved, but also the measurement process is more harmonious and natural, and closer to a human intention, and a measurement result is more accurate.

Abstract: A position locating method and apparatus are applied to the electronic information field, so that shifting an indication cursor in a wide range using a wireless indication device can be avoided, and a user operation can be simplified. The method comprises detecting a line-of-sight orientation of a user, and obtaining a line-of-sight orientation parameter of the user; detecting a line-of-sight source of the user, and obtaining a line-of-sight source position of the user; obtaining a position of a screen, and obtaining a screen position of a line of sight according to the line-of-sight orientation parameter, the position of the screen, and the line-of-sight source position; and receiving an adjustment signal, adjusting, according to the adjustment signal, the position displayed on the screen, and displaying an adjusted position on the screen.

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: The present invention discloses a method for generating media information, a terminal, a server, and an adaptive streaming system. Media code streams of m types of code rate, which are generated by an AHS system, are divided into h groups, and tracing codes are separately embedded into code stream segments of each group. The tracing codes embedded into the code stream segments, and code stream group information are stored in a media presentation description MPD file. In a downloading process of a terminal, tracing of an end user that downloads media data is implemented.

Abstract: A method and an apparatus for displaying a video from any location and any time, where the method includes obtaining a control signal input by a user, where the control signal reflects an operation intention of the user; determining a manner of displaying video content according to the control signal input by the user; determining a video playback control instruction according to characteristic information of the video content and the manner of displaying the video content, where the video playback control instruction includes a playback start location and a playback manner; and playing the video content under control of the video playback control instruction. Because the control instruction is determined according to the manner of displaying the to-be-played video, the video can be played from any location and any time.

Abstract: Examples of the present disclosure provide a visual remote control method and system for controlling a touch-controllable device. The method includes: obtaining, by a control center device, a video image; determining, by the control center device, an identifier of each of at least one touch-controllable device in the video image; and sending, by the control center device, the video image and the identifier of each touch-controllable device to a remote device, so that the touch-controllable device in the video image is controllable by using the remote device.

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: A media playback method and device that relate to the field of computer technologies are provided. The method includes turning on a camera to detect the number of human eyes within a shooting range to determine an initial number of viewers when a user performs a media playback activity, detecting, at a set interval, the number of human eyes to determine a current number of viewers, and encrypting a playback image when the current number of viewers is greater than the initial number of viewers. The method is applicable when a user views information, such as a text, a picture, or a video, on a device such as a mobile phone terminal, a pad device, or a computer.

Abstract: A method, a device, and a system are provided for recognizing a gesture based on multi-terminal collaboration, which are used to recognize an air gesture operation of a user in a multi-terminal collaboration scenario. The method includes receiving, by a first terminal after receiving a collaboration request activation signal, parameter information of second terminals; recording, by the first terminal according to the parameter information of the second terminals, an arrangement manner of terminals that participate in acquiring of gesture information, where the terminals that participate in the acquiring of the gesture information include all terminals or the second terminals; receiving, by the first terminal, sensor trigger information sent by at least one second terminal; and determining, by the first terminal according to the recorded arrangement manner and the acquired sensor trigger information, a type of a gesture that triggers a sensor.

Abstract: A method relates to the field of multimedia technologies, and in particular, to a remote control method and apparatus, which are used to implement remote control on a terminal, includes obtaining a presentation image, where the presentation image is an image used to present an operation performed on a terminal, detecting a presentation screen picture in the presentation image according to detection parameter information of the terminal, where the presentation screen picture is a screen picture of the terminal in the presentation image, determining a mapping relationship between a pixel on the presentation screen picture and a pixel on a display screen of the terminal according to parameter information of the presentation screen picture and screen parameter information of the terminal, and controlling the terminal according to information about an operation by a user on the presentation screen picture, and the mapping relationship.

Abstract: In the field of man-machine interaction technologies, a gesture-based object measurement method and apparatus, which are used to improve measurement efficiency. According to this method, after image information is collected, contour information of a to-be-measured object is automatically extracted and partitioned off, and a measurement parameter value such as a length, an area, or a volume is calculated on this basis. In this way, not only real-time online measurement is implemented, a measurement process is simpler, and more convenient, visual, and effective, and augmented reality (AR) measurement efficiency can be improved, but also the measurement process is more harmonious and natural, and closer to a human intention, and a measurement result is more accurate.

Abstract: A position locating method and apparatus are applied to the electronic information field, so that shifting an indication cursor in a wide range using a wireless indication device can be avoided, and a user operation can be simplified. The method comprises detecting a line-of-sight orientation of a user, and obtaining a line-of-sight orientation parameter of the user; detecting a line-of-sight source of the user, and obtaining a line-of-sight source position of the user; obtaining a position of a screen, and obtaining a screen position of a line of sight according to the line-of-sight orientation parameter, the position of the screen, and the line-of-sight source position; and receiving an adjustment signal, adjusting, according to the adjustment signal, the position displayed on the screen, and displaying an adjusted position on the screen.

Abstract: A method, a server, and a user terminal for providing and acquiring media content are provided. The providing method includes: receiving a file segment acquiring request sent by a user terminal, where the file segment acquiring request is generated and sent by the user terminal according to an identifier of the user terminal, and the media segment description file includes a storage address and an embedded identifier of each media file segment that is divided from media content; and providing the user terminal with a media file segment that is embedded with the identifier of the user terminal. In the technical solution of the present invention, a server no longer processes media content in real time and responds to an acquiring request of a user terminal, thereby reducing concurrent load of the server and reducing concurrent bandwidth occupied by media content distribution.

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: A method relates to the field of multimedia technologies, and in particular, to a remote control method and apparatus, which are used to implement remote control on a terminal, includes obtaining a presentation image, where the presentation image is an image used to present an operation performed on a terminal, detecting a presentation screen picture in the presentation image according to detection parameter information of the terminal, where the presentation screen picture is a screen picture of the terminal in the presentation image, determining a mapping relationship between a pixel on the presentation screen picture and a pixel on a display screen of the terminal according to parameter information of the presentation screen picture and screen parameter information of the terminal, and controlling the terminal according to information about an operation by a user on the presentation screen picture, and the mapping relationship.

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.