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公开(公告)号：US20180160123A1
公开(公告)日：2018-06-07
申请号：US15828281
申请日：2017-11-30
Applicant: QUALCOMM Incorporated
Inventor： Geert VAN DER AUWERA , Yekui WANG
IPC: H04N19/167 , H04N19/513 , H04N19/17
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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公开(公告)号：US20180199070A1
公开(公告)日：2018-07-12
申请号：US15862046
申请日：2018-01-04
Applicant: QUALCOMM Incorporated
Inventor： Yekui WANG
IPC: H04N19/70 , H04N19/96 , H04N19/186 , H04N19/124 , H04N19/52 , H04N19/593 , H04N19/107 , H04N19/61 , H04N19/159
Abstract: Techniques and systems are provided for processing video data and processing one or more media format files. For example, video data can be obtained and processed to generate a media format file that includes the video data and a restricted scheme information box associated with the video data. The restricted scheme information box includes a plurality of scheme type boxes that identify a plurality of restricted scheme types required for processing the video data. In another example, the media format file including the video data and the restricted scheme information box associated with the video data is obtained. The media format file can be parsed, and the video data can be processed according to the plurality of restricted scheme types identified by the plurality of scheme type boxes.
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公开(公告)号：US20220030039A1
公开(公告)日：2022-01-27
申请号：US17446138
申请日：2021-08-26
Applicant: QUALCOMM Incorporated
Inventor： Nikolai Konrad LEUNG , Yekui WANG , Ramachandran SUBRAMANIAN
Abstract: Methods and apparatus are disclosed for session initiation in a conference. In one aspect, a method for communicating between multiple parties is disclosed. The method comprises generating, at a first device, a first message for transmission to a second device. The method further comprises receiving, at the first device, a second message for establishing a conference. The second message includes a list of one or more concurrent codec capabilities supported by the second device. The list of one or more concurrent codec capabilities supported by the second device comprises an indication of whether one or more resources usable for one or more concurrent instances of a first listed codec may instead be used for one or more concurrent instances of a second listed codec.
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公开(公告)号：US20180276890A1
公开(公告)日：2018-09-27
申请号：US15927799
申请日：2018-03-21
Applicant: QUALCOMM Incorporated
Inventor： Yekui WANG
CPC classification number: G06T19/003 , G06T15/005 , G06T15/20 , H04N21/4728 , H04N21/6125
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.
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