Abstract: A high-frequency transformer, includes: an iron core, primary windings and secondary windings, wherein the iron core is of an integrated equilateral triangle structure, the primary windings and the secondary windings are uniformly wound around three sides of the iron core, and the primary windings and/or the secondary windings are symmetrically distributed on the three sides.

Abstract: A method for recognizing an identity in a video conference including: obtaining, by an identity recognition apparatus, first biometric feature information in a video conference; obtaining second biometric feature information corresponding to an identity list in a database and a conference probability value corresponding to the identity list, where the identity list includes at least one personal unique identifier, and the biometric feature information first and the second biometric feature information include at least one of facial feature information and voiceprint feature information, and the conference probability value is determined based on at least one of a participation probability value and a same conference probability value; and determining, from the identity list and based on the second biometric feature information corresponding to the identity list and the conference probability value corresponding to the identity list, a personal unique identifier corresponding to the first biometric feature inf

Abstract: This application provides a method for information recommendation performed by an electronic device.

Abstract: This application discloses a human-computer interaction method, apparatus, and system, and relates to the field of human-computer interaction technologies. The human-computer interaction method is applied to a human-computer interaction system, and the human-computer interaction system includes a touchscreen. The human-computer interaction method includes: receiving a first touch operation and a second touch operation that have overlapping touch duration, receiving a voice instruction, where the voice instruction is a voice instruction received within the overlapping touch duration of the first touch operation and the second touch operation, in response to the first touch operation and the second touch operation, determining location information of a to-be-operated object of the voice instruction on the touchscreen, and executing the voice instruction based on the location information of the to-be-operated object on the touchscreen.

Abstract: A voice user interface display method and a conference terminal are provided. The method includes: when voice information input by a user into the conference terminal is received, a voice of the user is collected. A user voice instruction may be obtained based on the voice information input by the user. Identity information of the user may be obtained in real time based on the voice of the user. Further, user interface information that matches the user may be displayed based on the identity information of the user, the user voice instruction, and a current conference status of the conference terminal. The method improves diversity of display of the user interface information and improves user experience in using the conference system.

Abstract: A method for recognizing an identity in a video conference including: obtaining, by an identity recognition apparatus, first biometric feature information in a video conference; obtaining second biometric feature information corresponding to an identity list in a database and a conference probability value corresponding to the identity list, where the identity list includes at least one personal unique identifier, and the biometric feature information first and the second biometric feature information include at least one of facial feature information and voiceprint feature information, and the conference probability value is determined based on at least one of a participation probability value and a same conference probability value; and determining, from the identity list and based on the second biometric feature information corresponding to the identity list and the conference probability value corresponding to the identity list, a personal unique identifier corresponding to the first biometric feature inf

Abstract: A method and an apparatus for performing temperature compensation for a camera. The method includes: obtaining temperature information of a camera lens of the camera using a temperature sensor; obtaining a lens target movement position according to position information of a motor that controls a lens of the camera to move and the temperature information; and controlling, according to the obtained lens target movement position, a corresponding lens to move to a target movement position. According to the method and apparatus provided in this application, an imaging quality change, which is caused by a temperature change, of a camera can be compensated for using a simple and convenient method, and practicability is high.

Abstract: An image rendering method and apparatus where the method includes recognizing a target area from a to-be-rendered image, setting a virtual light source for the target area, and performing rendering on the target area using the virtual light source. When rendering is performed on the to-be-rendered image, the rendering performed on the to-be-rendered image is implemented using the virtual light source. The virtual light source plays a rendering action only on the target area corresponding to the virtual light source, and does not affect another part of the to-be-rendered image, and therefore an image effect of the to-be-rendered image may be relatively good.

Abstract: A method and an apparatus for performing temperature compensation for a camera. The method includes: obtaining temperature information of a camera lens of the camera using a temperature sensor; obtaining a lens target movement position according to position information of a motor that controls a lens of the camera to move and the temperature information; and controlling, according to the obtained lens target movement position, a corresponding lens to move to a target movement position. According to the method and apparatus provided in this application, an imaging quality change, which is caused by a temperature change, of a camera can be compensated for using a simple and convenient method, and practicability is high.

Abstract: An image rendering method and apparatus where the method includes recognizing a target area from a to-be-rendered image, setting a virtual light source for the target area, and performing rendering on the target area using the virtual light source. When rendering is performed on the to-be-rendered image, the rendering performed on the to-be-rendered image is implemented using the virtual light source. The virtual light source plays a rendering action only on the target area corresponding to the virtual light source, and does not affect another part of the to-be-rendered image, and therefore an image effect of the to-be-rendered image may be relatively good.

Abstract: A video signal processing method and a camera device. The method includes obtaining a video signal, and splitting several frames of images in the video signal into two or more sub-images; performing first processing on the two or more sub-images of the several frames of images using two or more image sensor processor (ISP) processing units; and outputting the processed two or more sub-images of the several frames of images. The present invention can improve resolution of output images, make images at joints clear, and implement an ultra-high resolution camera, thereby avoiding deficiencies such as image overlapping or missing at a seam, color difference, and out of synchronization that occur because an existing ultra-high definition video camera system uses a plurality of cameras to perform image splicing.

Abstract: Embodiments of the present invention provide a method and a device for multi-camera image correction. The method for multi-camera image correction includes: acquiring information of independent images that are captured by each camera and have no overlap area or have an overlap area smaller than a threshold; acquiring, according to information of each independent image, an image correction parameter that corresponds to each camera and allows adjacent independent images to be corrected into a contiguous image; and performing, according to the image correction parameter, correction processing on video data of a camera that corresponds to the image correction parameter. In the embodiments of the present invention, maintenance manpower is saved, adjustment efficiency is improved, and remote maintenance may be performed in the case of no overlap area or of a small overlap area. In addition, images are corrected in a data processing manner, which efficiently ensures precision of image correction.

Abstract: The present invention discloses a method, a device, and a system for adjusting image display and belongs to the field of videoconferencing technologies. The method includes: receiving an image of a second conference site and an environmental parameter of the second conference site that are sent by a presence terminal of the second conference site; converting the image of the second conference site according to a pre-stored environmental parameter of a first conference site and the environmental parameter of the second conference site to obtain an image for display, wherein a conference site environmental parameter of the image for display is consistent with the environmental parameter of the first conference site; and displaying the image for display.

Abstract: A video signal processing method and a camera device. The method includes obtaining a video signal, and splitting several frames of images in the video signal into two or more sub-images; performing first processing on the two or more sub-images of the several frames of images using two or more image sensor processor (ISP) processing units; and outputting the processed two or more sub-images of the several frames of images. The present invention can improve resolution of output images, make images at joints clear, and implement an ultra-high resolution camera, thereby avoiding deficiencies such as image overlapping or missing at a seam, color difference, and out of synchronization that occur because an existing ultra-high definition video camera system uses a plurality of cameras to perform image splicing.

Abstract: In the field of communication, embodiments of the present invention provide a video communication method, device and system. The technical solutions provided by the present invention include: at least two local video cameras, configured to shoot at least two channels of local video images; an apparatus for local shooting, stitching, and fusing, configured to fuse the at least two channels of local video images, generate a panoramic video image, encode the panoramic video image into a video code stream, and transmit the video code stream to a video communication site at a remote end; a local display fusing apparatus, configured to obtain at least two channels of video data by decoding a video code stream received from the remote end, fuse the at least two channels of video data, and output the fused video data to local display apparatuses for display.

Abstract: A remote presenting system, includes: a plurality of displays, configured to display a remote image; an audio output apparatus, configured to output remote audio information; a multimedia communication terminal, configured to process and control audio/video information obtained by a local end and audio/video information sent by a remote end; a plurality of video cameras, configured to shoot a local video image and send the shot video image to the multimedia communication terminal to be processed; an audio collection apparatus, configured to collect local audio information, and send the collected audio information to the multimedia communication terminal; and a plurality of user locations, corresponding to the plurality of video cameras respectively, and respectively being in an approximately perpendicular relationship with optic axes of camera lenses of the plurality of video cameras.

Abstract: A telepresence system, a telepresence method, and a video collection device are disclosed. The telepresence system includes a video collection device, a video display device, an audio collection device, an audio player, and an audio and video communication device. The audio and video communication device transmits videos collected by the video collection device on a local end and audios collected by the audio collection device on the local end to a remote end through a network; the video display device and the audio player on the remote end play the images and audios respectively; and the video collection device is a panoramic camera. The technical solution under the present invention overcomes the poor effect of panoramic presence in the existing telepresence system, and improves the telepresence system in terms of depth presence, seamless display and eye contact.

Abstract: The present invention relates to the communications field and discloses a video communication method, apparatus, and system, which are invented to solve the problem that the prior art does not achieve consistent eye-to-eye video communication in a horizontal direction. The technical solutions of the present invention includes: obtaining video images of a participant from more than two different horizontal shooting angles, where a range of viewing angles of the participant is between the more than two different horizontal shooting angles; and sending the video images of the participant to a video communication remote end. The embodiments of the present invention may be applied in the video communication field.

Abstract: The present invention discloses a method, a device, and a system for adjusting image display and belongs to the field of videoconferencing technologies. The method includes: receiving an image of a second conference site and an environmental parameter of the second conference site that are sent by a presence terminal of the second conference site; converting the image of the second conference site according to a pre-stored environmental parameter of a first conference site and the environmental parameter of the second conference site to obtain an image for display, wherein a conference site environmental parameter of the image for display is consistent with the environmental parameter of the first conference site; and displaying the image for display.

Abstract: A telepresence system, a telepresence method, and a video collection device are disclosed. The telepresence system includes a video collection device, a video display device, an audio collection device, an audio player, and an audio and video communication device. The audio and video communication device transmits videos collected by the video collection device on a local end and audios collected by the audio collection device on the local end to a remote end through a network; the video display device and the audio player on the remote end play the images and audios respectively; and the video collection device is a panoramic camera. The technical solution under the present invention overcomes the poor effect of panoramic presence in the existing telepresence system, and improves the telepresence system in terms of depth presence, seamless display and eye contact.