PROCESSING MEDIA DATA USING FILE TRACKS FOR WEB CONTENT

    公开(公告)号:US20190020915A1

    公开(公告)日:2019-01-17

    申请号:US16033999

    申请日:2018-07-12

    Abstract: In one example, a device for retrieving media data includes a memory configured to store media data, and one or more processors implemented in circuitry and configured to retrieve a file including the media data, web content formatted according to hypertext markup language (HTML), and data indicating how to synchronize the web content with the media data, and present the media data and the web content, wherein to present the media data and the web content, the one or more processors are configured to synchronize presentation of the web content with presentation of the media data according to the data indicating how to synchronize the web content with the media data.

    Advanced signaling of regions of interest in omnidirectional visual media

    公开(公告)号:US11532128B2

    公开(公告)日:2022-12-20

    申请号:US15927799

    申请日:2018-03-21

    Inventor: Yekui Wang

    Abstract: In various implementations, modifications and/or additions to the ISOBMFF can indicate that a file that has been formatted according to the ISOBMFF, or a format derived from the ISOBMFF, includes virtual reality content. The file can include a restricted scheme information box, written into a track box in the file. The restricted scheme information box can indicate a virtual reality scheme for the contents of the track. For example, a signaling mechanism may indicate a most-viewed viewport associated with the virtual reality data.

    Systems and methods of signaling of regions of interest

    公开(公告)号:US10652553B2

    公开(公告)日:2020-05-12

    申请号:US15828281

    申请日:2017-11-30

    Abstract: Techniques and systems are provided for processing video data. In one example, a media file associated with 360-degree video data can be obtained. The 360-degree video data may include a spherical representation of a scene. The media file may include first signaling information and second signaling information of a viewport region corresponding to a region of interest (ROI) in the spherical representation. The first signaling information may include a center position and a dimension of the viewport region measured in a spherical space associated with the spherical representation. The second signaling information may indicate a region of a picture comprising the viewport region, the picture being formed by projecting the spherical representation including the ROI onto a plane. Pixels corresponding to the viewport region from the data of the picture can be extracted based on the first signaling information and second signaling information, and can be provided for rendering.

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