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Adaptive panoramic video streaming using overlapping partitioned sections

A panoramic video and video streaming technology, applied in digital video signal modification, television, selective content distribution, etc., can solve problems such as freezing or stopping, playback tools not correctly drawing panoramic video image content, etc., and achieve the effect of avoiding interruption

Active Publication Date: 2021-01-08
MICROSOFT TECH LICENSING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the view orientation or zoom factor changes, the playback tool may not correctly draw the image content required for the segments of the panorama video that should be visible
Playback may freeze or stop until the playback tool can resume by retrieving the encoded data and reconstructing the panoramic video for the new visible segments

Method used

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  • Adaptive panoramic video streaming using overlapping partitioned sections
  • Adaptive panoramic video streaming using overlapping partitioned sections
  • Adaptive panoramic video streaming using overlapping partitioned sections

Examples

Experimental program
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Embodiment Construction

[0026] DETAILED DESCRIPTION Innovations in stream configuration operations and playback operations for adaptive streaming of panoramic videos are proposed. These innovations include features for adaptive streaming of panoramic video using composite pictures. In some example implementations, these innovations can help if the viewer greatly changes the view orientation or zoom factor during playback, or if the encoded data for a segment of the panoramic video is lost (e.g., due to network congestion) or corrupted. Interruption of the playback of the panoramic video is avoided. These innovations also include features for adaptive streaming of panoramic videos utilizing overlapping segments. In other example implementations, these innovations can help avoid interruptions in the playback of the panoramic video when the viewer gradually changes the view direction or zoom factor during playback.

[0027] In the examples described herein, the same reference numerals in different dra...

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PUM

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Abstract

Innovations in stream configuration operations and playback operations for adaptive streaming of panoramic video are described. The innovations include features of adaptive streaming of panoramic video with overlapping sections. For example, a stream configuration tool splits an input picture of panoramic video into overlapping sections. A playback tool reconstructs one or more of the sections. Because of overlap between adjacent sections, for gradual changes in a view window, the playback tool can, in effect, preemptively fetch a new section as the view window moves out of a current section into the new section. By the time the view window reaches a non-overlapping part of the adjacent, new section, the playback tool has retrieved encoded data for the new section and can reconstruct the new section. This hides network latency and stream switching latency from the viewer, and disruption of playback is avoided.

Description

Background technique [0001] Video is delivered in digital form when it is streamed over the Internet and played back through a web browser or media player. Digital video is also used when delivering video over many broadcast, satellite, and cable services. Live video conferencing typically uses digital video and uses digital video during video capture with most smartphones, web cameras, and other video capture devices. Digital video is also used in technologies such as virtual reality (VR) and augmented reality (AR), regardless of whether the video is played back in a head-mounted display, mobile device, or other type of device. [0002] Panoramic video is video in which views in multiple directions around a central location are recorded simultaneously. The recorded video may include image content in each direction, or at least in each direction of a 360° circle around the central location, and at least some image content above the central location and below the central loca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/4728H04N21/81H04N21/6379
CPCH04N21/4728H04N21/6379H04N21/816H04N19/184H04N19/30G06T11/003G06V20/40H04N23/698
Inventor M·沃斯尼亚克B·S·雷迪A·玛蒂尼
Owner MICROSOFT TECH LICENSING LLC