Method and apparatus for providing conversational services in mobile communication system

    公开(公告)号:US11838488B2

    公开(公告)日:2023-12-05

    申请号:US17657076

    申请日:2022-03-29

    CPC classification number: H04N13/194 H04L65/60

    Abstract: Disclosed are a method and an apparatus for transmitting and receiving a volumetric video for a volumetric video communication service in a mobile communication system. The method includes: determining a volumetric video compression scheme for the volumetric video; transmitting a first message including first media parameters for the determined volumetric video compression scheme to a peer device; receiving a second message including second media parameters from the peer device in response to the transmission of the first message; and transmitting a volumetric video compressed according to the second media parameters to the peer device.

    Method and apparatus for processing immersive media

    公开(公告)号:US11503087B2

    公开(公告)日:2022-11-15

    申请号:US17469265

    申请日:2021-09-08

    Abstract: The disclosure relates to a fifth generation (5G) communication system or a sixth generation (6G) communication system for supporting higher data rates beyond a fourth generation (4G) communication system such as long term evolution (LTE). The disclosure provides rendering of fisheye 360 degree video contents, including fisheye circular image videos. A method of a transmitting device is provided. The method includes transmitting, to a receiving device, a Session Description Protocol (SDP) offer message for negotiation of parameter associated with a fisheye image, and receiving, from the receiving device, a fisheye SDP answer message including second fisheye image related information generated based on first fisheye image related information included in the SDP offer message. wherein the first fisheye image related information includes first maximum packing information indicating a maximum number of fisheye images that is available to be packed into one stream.

    Method for transmitting data relating to three-dimensional image

    公开(公告)号:US10827160B2

    公开(公告)日:2020-11-03

    申请号:US16470446

    申请日:2017-11-14

    Abstract: Provided is a method for displaying a 3-dimensional (3D) image by a device. The method comprises the steps of: transmitting information on a viewport of the device to a server; receiving data about at least one second region corresponding to the viewport among a plurality of regions of a packed 2D image from the server; and displaying the 3D image based on the received data, wherein the packed 2D image is generated by modifying or rearranging at least a part of a plurality of regions of a 2D image projected from the 3D image, and wherein the at least one second region is identified based on an index of each of at least one first region corresponding to the viewport among the plurality of regions of the 3D image and information on a relationship between an index of each of the plurality of regions of the 3D image and an index of each of the plurality of regions of the packed 2D image.

    Method and apparatus for displaying image based on user motion information

    公开(公告)号:US10755472B2

    公开(公告)日:2020-08-25

    申请号:US15938816

    申请日:2018-03-28

    Abstract: Methods and apparatuses are provided for transmitting information about an omni-directional image based on user motion information by a server. Motion parameters are received from an apparatus worn by a user for displaying an omni-directional image. User motion information is generated based on the received motion parameters. First packing information corresponding to a user position is generated based on the user motion information. Second packing information corresponding to a position in close proximity to the user position is generated based on the user motion information. Third packing information is generated based on the first packing information and the second packing information At least one of the first packing information, the second packing information, and the third packing information is transmitted to the apparatus.

    Apparatus and method for controlling contrast ratio of content in electronic device

    公开(公告)号:US10657631B2

    公开(公告)日:2020-05-19

    申请号:US15770673

    申请日:2016-10-27

    Abstract: An apparatus and a method for controlling a contrast ratio of content in an electronic device are disclosed. The method for controlling a contrast ratio of content in an electronic device, presented in one embodiment of the present disclosure, comprises the steps of: identifying one or more highlight regions on the basis of brightness information of a frame forming the content; determining thresholds for detecting the one or more highlight regions from the frame; generating one or more masks corresponding to the one or more highlight regions on the basis of the thresholds; and generating a contrast ratio-controlled frame on the basis of the one or more masks and one or more boosting factors for the content.

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