Encoding device, decoding device, playback device, encoding method, and decoding method

An encoding device and encoding technology are applied in the field of video encoding and decoding technology, and can solve problems such as increasing the amount of distributed data.

Inactive Publication Date: 2013-07-10
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, when distributing a large number of viewpoint videos (hereinafter, a collection of a large number of viewpoint videos is referred to as "multi-viewpoint video"), compared with the distribution of a single viewpoint video or a fixed viewpoint 3D video, The amount of data distributed increases

Method used

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  • Encoding device, decoding device, playback device, encoding method, and decoding method
  • Encoding device, decoding device, playback device, encoding method, and decoding method
  • Encoding device, decoding device, playback device, encoding method, and decoding method

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Embodiment approach 1

[0077]

[0078] figure 1 It is a conceptual diagram showing a reference relationship between viewpoints when encoding multiple viewpoint videos.

[0079] This figure shows an example of the reference relationship of viewpoint videos a to c.

[0080] Each viewpoint video is constituted by a group of pictures representing the time-lapse scene of the corresponding viewpoint, that is, temporally continuous images captured by the camera, and each picture (picture) refers to a frame that will constitute one screen when it is reproduced by the reproduction device. The images, that is, the images that make up a frame or field.

[0081] Arrows in this figure indicate that the viewpoint video at the front end of the arrow is referred to from the viewpoint video at the tail end of the arrow. For example, figure 1 Viewpoint video a in (i) refers to encoding with reference to a picture at the same time as viewpoint video c.

[0082] in having by figure 1 In the case of the viewpoint...

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Abstract

The encoding device of the present invention, when encoding a group of frame images showing views over time from each of a plurality of viewpoints, encodes a group of frame images from a standard viewpoint as base-view video stream data without using frame images from other viewpoints as reference images. Furthermore, the present invention encodes a group of frame images from a first-type viewpoint in a positional relationship in which at least one other viewpoint from among a plurality of viewpoints is inserted with respect to the standard viewpoint among the plurality of viewpoints, as first dependent-view video stream data using frame images simultaneous with the base-view video stream data or another first dependent-view video stream data as a reference image. Furthermore, the present invention encodes a group of frame images from a second-type viewpoint inserted between other viewpoints, the second-type viewpoint being a viewpoint other than the standard viewpoint or the first-type viewpoint, as second dependent-view video stream data by referencing frame images simultaneous with two viewpoints having the second-type viewpoint therebetween.

Description

technical field [0001] The present invention relates to a technique for encoding, decoding, and reproducing video recording or transmission, and particularly relates to a technique for encoding and decoding multi-viewpoint video. Background technique [0002] Conventionally, there is a free-viewpoint video technology among technologies for playing back video from a viewpoint position selected by a viewer. [0003] In the free-viewpoint video technology, among videos captured from different viewpoints using a plurality of cameras (hereinafter, a video captured from one viewpoint will be referred to as "viewpoint video"), the video that is closest to the viewpoint selected by the viewer is performed. Viewpoint video playback, or playback of video at the viewer's viewpoint position generated by interpolation using viewpoint videos closer to the viewer's viewpoint position (Patent Document 1). [0004] In such a free-viewpoint video technology, as many viewpoint videos as possi...

Claims

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Application Information

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IPC IPC(8): H04N7/32H04N13/00
CPCH04N13/00H04N19/597H04N19/70H04N19/577H04N13/161H04N19/00
Inventor 佐佐木泰治矢羽田洋小川智辉西孝启川口透小泽由佳
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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