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1. 发明授权

US11257236B2 Method for estimating a depth for pixels, corresponding device and computer program product 有权
公开(公告)号：US11257236B2
公开(公告)日：2022-02-22
申请号：US17261375
申请日：2019-07-17
申请人： InterDigital CE Patent Holdings, SAS
发明人： Frederic Babon , Neus Sabater , Matthieu Hog , Didier Doyen , Guillaume Boisson
IPC分类号： G06T7/557
摘要： A method is proposed for estimating a depth for pixels in a matrix of M images. Such method comprises, at least for one set of N images among the M images, 2

2. 发明申请

US20210248754A1 METHOD FOR PROCESSING A LIGHT FIELD IMAGE DELIVERING A SUPER-RAYS REPRESENTATION OF A LIGHT FIELD IMAGE 有权
公开(公告)号：US20210248754A1
公开(公告)日：2021-08-12
申请号：US17244706
申请日：2021-04-29
申请人： InterDigital CE Patent Holdings, SAS
发明人： Matthieu Hog , Neus Sabater , Christine Guillemot
IPC分类号： G06T7/174 , G06T7/11
摘要： The present disclosure concerns a method for processing a light field image comprising a set of image views. The method is remarkable in that it comprises: selecting (101) a set of pixels, named centroids, within a given image view in said light field image, each centroid being associated with a unique label and a unique light ray; de-projecting said centroids, that delivers a set of points in a 3D space; re-projecting said points of said set of points in a 3D space in at least one other image view in said light field image, which is different from said reference view, that delivers a set of re-projected centroids; and determining (102), for each pixel, being associated with a light ray, within a neighborhood of a re-projected centroid, a label related to one of the centroids, said determining relying on a proximity criterion in term of color between pixels and centroids, and a proximity criterion in term of spatial distances between pixels and re-projected centroids; and updating (103), for a given centroid, a color value associated with said given centroid, and spatial coordinates of said given centroid within said given image view, wherein said updating comprises: de-projecting pixels in said at least one other image view that are associated with a same label of said given centroid, delivering a set of obtained points; and re-projecting said obtained points into said given image view, delivering a set of projected points; and averaging both color values associated with said projected points and spatial coordinates associated with said projected points for defining updated information related to said given centroid.

3. 发明授权

US11024035B2 Method for processing a light field image delivering a super-rays representation of a light field image 有权
公开(公告)号：US11024035B2
公开(公告)日：2021-06-01
申请号：US16466025
申请日：2017-11-30
申请人： INTERDIGITAL CE PATENT HOLDINGS, SAS
发明人： Matthieu Hog , Neus Sabater , Christine Guillemot
IPC分类号： G06K9/34 , G06T7/174 , G06T7/11
摘要： The present disclosure concerns a method for processing a light field image comprising a set of image views. The method is remarkable in that it comprises: selecting (101) a set of pixels, named centroids, within a given image view in said light field image, each centroid being associated with a unique label and a unique light ray; de-projecting said centroids, that delivers a set of points in a 3D space; re-projecting said points of said set of points in a 3D space in at least one other image view in said light field image, which is different from said reference view, that delivers a set of re-projected centroids; and determining (102), for each pixel, being associated with a light ray, within a neighborhood of a re-projected centroid, a label related to one of the centroids, said determining relying on a proximity criterion in term of color between pixels and centroids, and a proximity criterion in term of spatial distances between pixels and re-projected centroids; and updating (103), for a given centroid, a color value associated with said given centroid, and spatial coordinates of said given centroid within said given image view, wherein said updating comprises: de-projecting pixels in said at least one other image view that are associated with a same label of said given centroid, delivering a set of obtained points; and re-projecting said obtained points into said given image view, delivering a set of projected points; and averaging both color values associated with said projected points and spatial coordinates associated with said projected points for defining updated information related to said given centroid.

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