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Encoding device, decoding device, reproducing device, encoding method, and decoding method

A coding device and coding technology, which are applied in the field of image coding and decoding technology, can solve the problem of increasing the amount of distributed data, etc.

Inactive Publication Date: 2017-06-13
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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

When the encoding device encodes a group of frame images representing a time-lapse scene of each of a plurality of viewpoints, the group of frame images of the reference viewpoint does not use frame images of other viewpoints as reference images but as a base-view video stream. The data is encoded. In addition, the frame image group of the first type of viewpoint in the positional relationship between the above-mentioned multiple viewpoints and the above-mentioned reference viewpoint sandwiching at least one other viewpoint uses the frame images at the same time of the base-view video stream data or other The first dependent-view video stream data is encoded as the first dependent-view video stream data as a reference image. Furthermore, a frame image group of a second viewpoint that is sandwiched between other viewpoints as a reference viewpoint and a viewpoint other than the first viewpoint is referred to frame images at the same time at two viewpoints that sandwich the second viewpoint, as the second viewpoint. Dependent video stream data is encoded.

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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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/597H04N13/00
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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