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公开(公告)号:EP3942829A1
公开(公告)日:2022-01-26
申请号:EP20719798.9
申请日:2020-03-17
发明人: FLEUREAU, Julien , DORE, Renaud , THUDOR, Franck
IPC分类号: H04N19/597 , H04N19/70
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公开(公告)号:EP3777154A1
公开(公告)日:2021-02-17
申请号:EP19718049.0
申请日:2019-04-09
发明人: FLEUREAU, Julien , DORE, Renaud , THUDOR, Franck , TAPIE, Thierry
IPC分类号: H04N19/126 , H04N19/154 , H04N19/176 , H04N19/463 , H04N19/597 , H04N19/98
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公开(公告)号:EP3568834B1
公开(公告)日:2020-11-11
申请号:EP18700113.6
申请日:2018-01-08
发明人: DORE, Renaud , GALPIN, Franck , BRIAND, Gerard , FLEUREAU, Julien
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公开(公告)号:EP3713237A1
公开(公告)日:2020-09-23
申请号:EP19305338.6
申请日:2019-03-20
发明人: FLEUREAU, Julien , DORE, Renaud , THUDOR, Franck
IPC分类号: H04N19/597 , H04N19/70
摘要: Methods, device and data stream format are disclosed in the present document for the encoding, the formatting and the decoding of depth information representative of a 3D scene. Compression and decompression of quantized values by a video codec leads to a value error. This error on values is particularly sensitive for depth encoding. The present invention proposes to encode and decode depth with a quantization function that minimize an angle error when a value error on quantized depth creates a location delta between the projected point and the de-projected point. The inverse of such a quantization function has to be encoded in metadata associated with the 3D scene, for example as a LUT, to be retrieved at the decoding, as such functions are not tractable.
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5.
公开(公告)号:EP3741111A1
公开(公告)日:2020-11-25
申请号:EP19701747.8
申请日:2019-01-04
发明人: FLEUREAU, Julien , DORE, Renaud , TAPIE, Thierry
IPC分类号: H04N13/161 , H04N13/178 , H04N13/268 , H04N19/00
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公开(公告)号:EP3709651A1
公开(公告)日:2020-09-16
申请号:EP19305306.3
申请日:2019-03-14
IPC分类号: H04N19/597 , H04N19/46 , H04N13/106 , G06T5/00
摘要: Methods, devices and stream are disclosed for encoding, transporting and decoding a 3D scene prepared to be viewed from the inside of a viewing zone. A central view comprising texture and depth information is encoded by projected points of the 3D scene visible from a central point of view onto an image plane. Patches are generated to encode small parts of the 3D scene not visible from the central point of view. At the rendering, a viewport image is generated for the current point of view. Holes, that is dis-occluded areas, of the viewport are filled using a patch based inpainting algorithm adapted to take the patches, warped according to the rotation and translation between virtual camera used for capturing the patch and the current virtual camera.
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公开(公告)号:EP3399758B1
公开(公告)日:2020-09-16
申请号:EP18169543.8
申请日:2018-04-26
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公开(公告)号:EP3977415A1
公开(公告)日:2022-04-06
申请号:EP20760580.9
申请日:2020-05-26
发明人: FLEUREAU, Julien , BRIAND, Gerard , DORE, Renaud
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公开(公告)号:EP3745357A1
公开(公告)日:2020-12-02
申请号:EP19305676.9
申请日:2019-05-28
发明人: FLEUREAU, Julien , DORE, Renaud , BRIAND, Gérard
摘要: A method for generating an image from a source image encoding a projection of a part of a three-dimensional scene is disclosed. Pixels of a source image comprise a depth and a color attribute. Pixels of a source image are de-projected as colored point cloud. A de-projected point in a 3D space has the color attribute of the pixel that it has been de-projected from. In addition, a score is attributed to the generated point according to a local depth gradient and/or a local color gradient of the pixel it comes from, the lower the gradient, the higher the score. In a second step, the generated point cloud is captured by a virtual camera for rendering on a display device. The point cloud is projected onto the viewport image by blending color of points projected on a same pixel, the blending being weighted by the scores of these points.
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公开(公告)号:EP3729811A1
公开(公告)日:2020-10-28
申请号:EP18825849.5
申请日:2018-12-11
发明人: FLEUREAU, Julien , DORE, Renaud , TAPIE, Thierry
IPC分类号: H04N19/597 , G06T5/00 , G06T9/00 , H04N5/367 , H04N19/85
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