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Pyramid model processing method and device as well as image coding method and device

A technology of a pyramid model and a processing method, applied in the field of image processing, can solve the problems of gap effect in the rendering process of output image, affecting the user's viewing experience of output image, and image discontinuity.

Active Publication Date: 2019-03-05
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of implementing the embodiment of the present application, the inventors found that the existing solution is prone to image discontinuity in the process of reconstructing the 3D model, which will cause a gap effect in the rendering process of the output image, thereby affecting the user's understanding of the 3D model. Viewing experience of the output image

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  • Pyramid model processing method and device as well as image coding method and device
  • Pyramid model processing method and device as well as image coding method and device
  • Pyramid model processing method and device as well as image coding method and device

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Embodiment Construction

[0050] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0051] The range of panoramic video display is very wide, which can cover the entire viewing angle of the experiencer. Therefore, panoramic video is a hot business in the field of VR (Virtual Reality, virtual reality), which can provide users with an immersive video viewing experience.

[0052] refer to Figure 4, shows a flow chart of panoramic video processing at the transcoding end and the terminal device provided by an embodiment of the present application, and the processing of the panoramic video at the transcoding end and the terminal device is symmetrical. Wherein, the transcoding end can establish a preset three-dimensional model, according to the first mapping relationship between the planar im...

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Abstract

The embodiment of the invention provides a pyramid model processing method and device as well as an image coding method and device. The pyramid model processing method comprises a step of determininga plane image corresponding to the panoramic video image according to a three-dimensional model corresponding to a panoramic video image, wherein the plane image comprises a first image obtained by mapping according to an image on the bottom surface of the three-dimensional image as well as a second image obtained by mapping according to multiple images on the side surfaces of the three-dimensional model, and the first image is adjacent to one edge of the second image. The embodiment of the invention can effectively reduce gap effect produced in a rendering process of an output image, and thenviewing experience of a user on the output image is improved.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a pyramid model processing method, a pyramid model processing device, an image encoding method and an image encoding device. Background technique [0002] Panoramic video refers to wide-angle video content that exceeds the general field of view, for example, circular / cylindrical 360-degree video can provide a 360-degree field of view. The range of panoramic video display is very wide and can cover the entire viewing angle of the experiencer, so it can well improve the visual experience. [0003] At present, in order to realize the transmission of panoramic video, the existing scheme can transcode the panoramic video at the sending end, and the corresponding transcoding process can include: mapping the panoramic video image to a 3D model, and expanding the 3D model containing the mapped image into two 2D planar image, and encode the 2D planar image to obtain th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/11H04N19/117H04N19/34H04N19/62G06T3/00
CPCH04N19/11H04N19/117H04N19/34H04N19/62G06T3/073
Inventor 盛骁杰
Owner ALIBABA GRP HLDG LTD