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Method and device for making virtual image region for motion estimation and compensation of panorama image

A panorama image and motion estimation technology, applied in the field of motion estimation and compensation, can solve problems such as wide bandwidth, and achieve the effect of improving coding efficiency

Inactive Publication Date: 2007-07-18
庆熙大学校产协力团 +1
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AI Technical Summary

Problems solved by technology

[0005] In general, this panoramic image has a larger size than conventional 2D images and uses too wide a bandwidth for transmission of high-quality images

Method used

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  • Method and device for making virtual image region for motion estimation and compensation of panorama image
  • Method and device for making virtual image region for motion estimation and compensation of panorama image
  • Method and device for making virtual image region for motion estimation and compensation of panorama image

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Embodiment Construction

[0026] best practices

[0027] According to one aspect of the present invention, a method for generating a virtual image area for motion estimation of a panoramic image is proposed, the panoramic image is divided into tiled tile units and sent from a sending side, the method includes the steps of: Search the previous panoramic image for reference data corresponding to all or a part of the virtual image area of ​​the current collage element desired to perform motion estimation, so as to determine the existence of the reference data; and based on the search result, selectively map the reference data to all or part of the virtual image area.

[0028] The step of mapping the reference data may include the steps of: in a case where the retrieval result indicates that the reference data exists, judging whether the reference data is updated within a predetermined time; and if the judgment result indicates that the reference data is updated within the predetermined time, The referenc...

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Abstract

A method of and apparatus for setting a virtual image region is provided in order to efficiently perform motion estimation and compensation of a panorama image including 360-degree omni-direction image information. The method includes the steps of searching a previous panorama image for reference data corresponding to all or part of a virtual image region of a current patch desired to be motion-estimated in order to determine the presence of the reference data, and selectively mapping the reference data to all or part of the virtual image region. By doing so, the panorama image containing omni-directional image information is coded by using a 2-dimensional moving picture coding method without change, while the coding efficiency in the process of motion estimation and compensation can be greatly improved.

Description

technical field [0001] The present invention relates to motion estimation and compensation. More particularly, the present invention relates to a method and apparatus for setting a virtual image region in order to efficiently perform motion estimation and compensation of a panoramic image including 360-degree omni-directional image information. Background technique [0002] The omni-directional video camera system is a camera system capable of shooting 360-degree omni-directional images according to a fixed viewing angle. The omnidirectional camera system captures omnidirectional images by installing and using a mirror of a specific shape such as a hyperboloid mirror, a specific lens such as a fisheye lens, or by using a plurality of cameras. [0003] A three-dimensional realistic broadcasting system is presented as an example of an omni-directional video coding application for such a system. In a three-dimensional realistic broadcasting system, for example, image informat...

Claims

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Application Information

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IPC IPC(8): H04N7/24H04N5/265H04N19/50
CPCG06F16/54G06T7/248H04N19/517H04N19/55H04N19/56H04N19/563
Inventor 朴光勋
Owner 庆熙大学校产协力团
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