公开(公告)号：US20230162379A1

公开(公告)日：2023-05-25

申请号：US17909452

申请日：2021-03-16

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christiaan Varekamp

IPC: G06T7/30

CPC classification number: G06T7/30 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/20212

Abstract: Presented are concepts for generating an input image dataset that may be used for training the alignment of multiple synthesized images. Such concepts may be based on an idea to generate an input image dataset from copies of an arbitrary reference image that are shifted in various directions. In this way, a single arbitrary image may be used to create an artificial misaligned input image input sample (i.e. input image dataset) that can be used to train a neural network.

公开(公告)号：US20220375159A1

公开(公告)日：2022-11-24

申请号：US17767064

申请日：2020-10-23

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christiaan Varekamp

IPC: G06T15/20 ,  G06T19/20

Abstract: A method is provided for selecting a transparency setting and color values of pixels in a virtual image. The virtual image can be formed by combining reference images taken at different angles to produce the virtual image that views an object at a new, uncaptured angle. The method includes determining for each pixel of the virtual image, what information it carries from the reference view images. The information of the pixel is used to define a pixel category, and the category is used to select, based on logical conditions, what information will be displayed by the pixel and to set the color of the pixels.

公开(公告)号：US11310486B2

公开(公告)日：2022-04-19

申请号：US15227295

申请日：2016-08-03

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Philip Steven Newton ,  Geradus Wilhelmus Theodorus Van Der Heijden ,  Wiebe De Haan ,  Johan Cornelis Talstra ,  Wilhelmus Hendrikus Alfonsus Bruls ,  Georgios Parlantzas ,  Marc Helbing ,  Christian Benien ,  Vasanth Philomin ,  Christiaan Varekamp

IPC: H04N13/361 ,  H04N13/183 ,  H04N13/293 ,  H04N13/122 ,  H04N13/139

Abstract: Three dimensional [3D] image data and auxiliary graphical data are combined for rendering on a 3D display (30) by detecting depth values occurring in the 3D image data, and setting auxiliary depth values for the auxiliary graphical data (31) adaptively in dependence of the detected depth values. The 3D image data and the auxiliary graphical data at the auxiliary depth value are combined based on the depth values of the 3D image data. First an area of attention (32) in the 3D image data is detected. A depth pattern for the area of attention is determined, and the auxiliary depth values are set in dependence of the depth pattern.

公开(公告)号：US20220094953A1

公开(公告)日：2022-03-24

申请号：US17545049

申请日：2021-12-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Wilhelmus Hendrikus Alfonsus Bruls ,  Christiaan Varekamp ,  Reinier Bernardus Maria Klein Gunnewiek

IPC: H04N19/21 ,  H04N19/597 ,  H04N19/46 ,  H04N13/161

Abstract: A method of encoding a video data signal (15) is provided, together with a method for decoding. The encoding comprises providing color information (51) for pixels in an image, providing a depth map with depth information (52) for the pixels, providing transition information (56, 57, 60, 70, 71) being representative of a width (63, 73) of a transition region (61, 72) in the image, the transition region (61, 72) comprising a depth transition (62) and blended pixels in which colors of a foreground object and a background object are blended, and generating (24) the video data signal (15) comprising encoded data representing the color information (51), the depth map (52) and the transition information (56, 57, 60, 70, 71). The decoding comprises using the transition information (56, 57, 60, 70, 71) for determining the width (63, 73) of the transition regions (61, 72) and for determining alpha values (53) for pixels inside the transition regions (61, 72). The determined alpha values (53) are used for determining the color of a blended pixel at the transition of a foreground object and a background object.

公开(公告)号：US10893259B2

公开(公告)日：2021-01-12

申请号：US16633027

申请日：2018-07-17

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christiaan Varekamp

IPC: H04N13/268 ,  H04N13/117 ,  G06T15/04 ,  G06T15/20 ,  H04N13/00

Abstract: An apparatus for generating a three-dimensional image representation of a scene comprises a receiver (301) receiving a tiled three-dimensional image representation of a scene from a first viewpoint, the representation comprising a plurality of interconnected tiles, each tile comprising a depth map and a texture map representing a viewport of the scene from the first viewpoint and the tiles forming a tiling pattern. A first processor (311) determines neighboring border regions in at least a first tile and in a second tile in response to the tiling pattern. A second processor (309) modifies at least a first depth value of a first border region of the first tile in response to at least a second depth value in a second border region of the second tile, the border regions being neighboring regions. The modified depth maps may be used to generate a mesh based on which images may be generated.

公开(公告)号：US10699466B2

公开(公告)日：2020-06-30

申请号：US16465606

申请日：2017-11-28

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christiaan Varekamp

IPC: G06T15/04 ,  H04N13/128 ,  H04N13/111 ,  G06T1/20 ,  G06T15/20 ,  G06T15/50

Abstract: A method of generating an image comprises receiving (301, 303) a first and second texture map and mesh representing a scene from a first view point and second view point respectively. A light intensity image is generated (305) for a third view point. For a first position this includes determining (401, 403) a first and second light intensity value for the first position by a view point transformation based on the first texture map and the first mesh and on the second texture map and the second mesh respectively. The light intensity value is then determined (405) by a weighted combination of the first and second light intensity values. The weighting depends on a depth gradient in the first mesh at a first mesh position corresponding to the first position relative to a depth gradient in the second mesh at a second mesh position corresponding to the first position.

公开(公告)号：US20200177868A1

公开(公告)日：2020-06-04

申请号：US16633027

申请日：2018-07-17

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christiaan Varekamp

IPC: H04N13/268 ,  G06T15/20 ,  G06T15/04 ,  H04N13/117 ,  H04N13/00

Abstract: An apparatus for generating a three-dimensional image representation of a scene comprises a receiver (301) receiving a tiled three-dimensional image representation of a scene from a first viewpoint, the representation comprising a plurality of interconnected tiles, each tile comprising a depth map and a texture map representing a viewport of the scene from the first viewpoint and the tiles forming a tiling pattern. A first processor (311) determines neighboring border regions in at least a first tile and in a second tile in response to the tiling pattern. A second processor (309) modifies at least a first depth value of a first border region of the first tile in response to at least a second depth value in a second border region of the second tile, the border regions being neighboring regions. The modified depth maps may be used to generate a mesh based on which images may be generated.

公开(公告)号：US10462446B2

公开(公告)日：2019-10-29

申请号：US15779877

申请日：2016-12-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christiaan Varekamp ,  Patrick Luc Els Vandewalle

IPC: H04N13/128 ,  H04N13/106 ,  G06T7/50 ,  H04N13/302

Abstract: An apparatus comprises a depth map source (109) providing a depth map for an image and a confidence map source (111) providing a confidence map with confidence values for pixels of the depth map. The confidence values designate the pixels as confident or non-confident pixels reflecting whether the depth value meets a reliability criterion or not. A depth modifier (113) performs a depth modification operation which modifies depth values for pixels of the depth map. A modified depth value for a first pixel is determined as a current depth value for the first pixel if this is designated as a confident pixel or if there are no confident pixels within a neighborhood set of pixels, and otherwise the modified value is determined as the maximum of the current depth value and a depth value determined as a function of depth values of pixels within the neighborhood set being designated as confident pixels.

公开(公告)号：US20150085091A1

公开(公告)日：2015-03-26

申请号：US14396409

申请日：2013-04-22

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christiaan Varekamp

IPC: H04N13/04 ,  G02B27/22 ,  F21V5/00

CPC classification number: H04N13/32 ,  F21V5/007 ,  G02B27/2214 ,  G02B27/225 ,  H04N13/305 ,  H04N13/351 ,  H04N13/376

Abstract: The invention provides a directional back-light arrangement for an auto-stereoscopic display in which different parts of the backlight arrangement point in different directions. This means that different parts of the backlight arrangement will be suitable for directing images in different directions, while reducing the effect of optical aberrations resulting from large exit angles.

Abstract translation: 本发明提供了一种用于自动立体显示的方向性背光装置，其中背光布置的不同部分指向不同的方向。 这意味着背光布置的不同部分将适合于在不同方向上引导图像，同时减少由大的出射角度导致的光学像差的影响。