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公开(公告)号:US20240080431A1
公开(公告)日:2024-03-07
申请号:US18273280
申请日:2022-01-13
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: Bartolomeus Wilhelmus Damianus Van Geest , Bart Kroon
IPC: H04N13/279 , G06T7/50 , G06T15/00 , G06V10/74 , H04N13/128
CPC classification number: H04N13/279 , G06T7/50 , G06T15/00 , G06V10/761 , H04N13/128
Abstract: An image synthesis apparatus comprises a first receiver (201) receiving three dimensional image data describing at least part of a three dimensional scene and second receiver (203) receiving a view pose for a viewer. An image region circuit (207) determines at least a first image region in the three dimensional image data and a depth circuit (209) determines a depth indication for the first image region from depth data of the three dimensional image data. A region circuit (211) determines a first region for the first image region. A view synthesis circuit (205) generates a view image from the three dimensional image data where the view image representing a view of the three dimensional scene from the view pose. The view synthesis circuit (205) is arranged to adapt a transparency for the first image region in the view image in response to the depth indication and a distance between the view pose and the first region.
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公开(公告)号:US11856223B2
公开(公告)日:2023-12-26
申请号:US17434775
申请日:2020-02-12
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: Bart Kroon , Bartolomeus Wilhelmus Damianus Van Geest
IPC: H04N19/597 , H04N19/105 , H04N19/146 , H04N19/172
CPC classification number: H04N19/597 , H04N19/105 , H04N19/146 , H04N19/172
Abstract: A method of generating an image signal from a plurality of images of a scene performs iterations that comprise generating (505) predicted images for a candidate set of images from a set of (previously) included images. A set of selected images is selected (509) from the set of candidate images in response to a prediction quality. For each selected image a subset of pixels is determined (511) in response to pixel prediction qualities for the pixels of the image, and a set of partial images corresponding to the selected images is generated (513) by selecting (511) a subset of pixels. The selected image is deleted from the candidate set and the partial image is added to the included set. The approach may provide a low complexity and low resource selection of image data representing a scene.
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公开(公告)号:US20230370635A1
公开(公告)日:2023-11-16
申请号:US18028828
申请日:2021-09-23
Applicant: KONINKLIJKE PHILIPS N.V.
IPC: H04N19/597 , H04N13/178 , H04N13/351 , H04N19/184
CPC classification number: H04N19/597 , H04N13/178 , H04N13/351 , H04N19/184
Abstract: Concepts for encoding and decoding multi-view data for immersive video are disclosed. In an encoding method, metadata is generated comprising a field indicating if a patch data unit of the multi-view data comprises in-painted data for representing missing data. The generated metadata provides a means of distinguishing patch data units comprising original texture and depth data from patch data units comprising in-painted data (e.g. in-painted texture and depth data). The provision of such information within the metadata of immersive video may address problems associated with blending and pruned view reconstruction. Also provided are an encoder and a decoder for multi-view data for immersive video, and a corresponding bitstream, comprising metadata.
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公开(公告)号:US11734875B2
公开(公告)日:2023-08-22
申请号:US17425966
申请日:2020-01-19
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: Fons Bruls , Christiaan Varekamp , Bart Kroon
Abstract: An apparatus comprises a receiver (301) for receiving an image representation of a scene. A determiner (305) determines viewer poses for a viewer with respect to a viewer coordinate system. An aligner (307) aligns a scene coordinate system with the viewer coordinate system by aligning a scene reference position with a viewer reference position in the viewer coordinate system. A renderer (303) renders view images for different viewer poses in response to the image representation and the alignment of the scene coordinate system with the viewer coordinate system. An offset processor (309) determines the viewer reference position in response to an alignment viewer pose where the viewer reference position is dependent on an orientation of the alignment viewer pose and has an offset with respect to a viewer eye position for the alignment viewer pose. The offset includes an offset component in a direction opposite to a view direction of the viewer eye position.
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公开(公告)号:US11483546B2
公开(公告)日:2022-10-25
申请号:US14902348
申请日:2014-05-28
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: Bart Kroon , Jan Van Der Horst , Eibert Gerjan Van Putten
IPC: H04N13/398 , H04N13/305 , H04N13/317 , H04N13/351 , G02B30/27 , G02B3/00
Abstract: Autostereoscopic display device comprising a backlight (66), a display panel (62) comprising rows and columns of pixels and a lenticular arrangement (60, 64), wherein the backlight (66) provides a striped output comprising stripes in the column direction or offset by an acute angle to the column direction the lenticular arrangement comprises a first lenticular lens array (60) on the side of the display panel (62) facing the display output for directing different display panel pixel outputs in different directions and a second lenticular lens array (64) on the opposite side of the display panel (62), facing the backlight (66), for providing collimation of the striped back-light output.
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公开(公告)号:US10712584B2
公开(公告)日:2020-07-14
申请号:US15646267
申请日:2017-07-11
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: Mark Thomas Johnson , Bart Kroon
Abstract: An autostereoscopic display device uses an electroluminescent display. A set of pixels is provided beneath view forming elements (such as lenses), with a plurality of pixels across the view forming element width direction. The pixels are arranged with at least two different angular orientations with respect to the substrate. The out-coupling performance is improved by arranging for the light emission direction to be substantially perpendicular to the desired emitting surface of the view forming elements.
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公开(公告)号:US10462453B2
公开(公告)日:2019-10-29
申请号:US15774726
申请日:2016-11-10
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: Achim Gerhard Rolf Koerber , Bart Kroon , Mark Thomas Johnson
IPC: G09G5/36 , H04N13/354 , G02B6/00 , G02F1/00 , G02B27/22 , H04N13/305 , H04N13/359 , H04N13/351 , G02B5/20 , G02B5/30 , G02F1/13 , G02F1/13363 , H04N13/315 , H04N13/30 , G02F1/1335
Abstract: A display device comprises a display panel (24), a light blocking arrangement for selectively blocking light which is directed to a lateral output direction from the display panel and an array of lenses (27). The display has a privacy mode in which the light blocking arrangement blocks laterally directed light output from the display device and a public mode in which the light blocking arrangement allows light to pass which is directed to a lateral output direction. The light blocking arrangement comprises a stack of layers (80), each layer comprising a pattern of light blocking arrangement portions of two different types (90,92) such that in the stack of layers, the portions align to form light blocking members, each light blocking member being aligned with an respective lens. The repeating pattern of the light blocking members has a pitch which is double the lens pitch. This enables the light blocking arrangement to be manufactured more easily.
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公开(公告)号:US10234690B2
公开(公告)日:2019-03-19
申请号:US15529664
申请日:2015-12-18
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: Olexandr Valentynovych Vdovin , Bart Kroon , Mark Thomas Johnson , Eibert Gerjan Van Putten
IPC: H04N13/00 , H04N9/47 , G02B27/22 , H04N5/262 , H04N13/324 , H04N13/317 , H04N13/307 , H04N13/351
Abstract: An autostereoscopic display comprises a pixelated display panel comprising an array of single color pixels or an array of sub-pixels of different colors and a view forming arrangement comprising an array of lens elements. The pixels form a square (or near square) grid, and the lenses also repeat in a square (or near square) grid. A vector p is defined which relates to a mapping between the pixel grid and the lens grid. Regions in the two dimension space for this vector p are identified which give good or poor banding performance, and the better banding performance regions are selected.
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公开(公告)号:US20190046158A1
公开(公告)日:2019-02-14
申请号:US15759856
申请日:2016-09-12
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: Bart Kroon , Denny Mathew , Elbert Gerjan van Putten , Nicolaas Lambert , Alexander Franciscus Kolen , Rick Bezemer
Abstract: The present invention relates to an ultrasound apparatus for medical examination of a subject. The ultrasound apparatus comprises a plurality of ultrasound transducers for emitting and receiving ultrasound waves and for providing different ultrasound signals on the basis of the ultrasound waves. A connection layer is provided, which is attachable to the subject, wherein the ultrasound transducers are coupled to the connection layer. A processing unit, which is connectable to the ultrasound transducers is provided for receiving the ultrasound signals and for determining at least one parameter on the basis of the ultrasound signals. The processing unit is adapted to determine at least one parameter indicative of a relative position of the ultrasound transducers to each other and/or a shape of the connection layer and the ultrasound waves are surface acoustic waves transmitted through the connection layer or a layer attached to the connection layer.
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公开(公告)号:US20140300711A1
公开(公告)日:2014-10-09
申请号:US14356639
申请日:2012-10-30
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: Bart Kroon , Marcellinus Petrus Carolus Michael Krijn , Frederik Jan De Bruijn , Mark Thomas Johnson , Philip Steven Newton , Bart Andre Salters , Siebe Tjerk De Zwart , Johannes Henricus Maria Korst
CPC classification number: H04N13/302 , H04N13/144 , H04N13/307
Abstract: A display device (40) comprising: a display panel (41) comprising a set of pixels (41R, 41L) the pixels being spatially distributed over the display panel, and each pixel being for providing a light output, the set of pixels comprising a plurality of different subsets (411) of pixels, each subset of pixels comprising one or more pixels of the set of pixels, an imaging unit (42) arranged for imaging the one or more pixels of a subset of pixels to form pixel images on a plurality of view areas on an imaginary plane located at a first distance in front of the display, the plurality of view areas not overlapping each other, with at least one pixel image of each one of the different subsets of pixels overlapping on a same one of the plurality of view areas, the imaginary plane comprising an imaginary circle having the diameter of the pupil of an eye, and the imaginary circle enclosing at least a part of at least two of the plurality of view areas, where the at least two of the plurality of view areas at least partly enclosed within the imaginary circle differ from each other with respect to at least one of the pixel images therein. The display system may be for one eye only or for two eyes of a viewer or for more eyes of more viewers.
Abstract translation: 一种显示设备(40),包括:显示面板(41),包括像素(41R,41L),所述像素在空间上分布在所述显示面板上,并且每个像素用于提供光输出,所述像素组包括 多个不同子集(411)的像素,每个像素子集包括该组像素中的一个或多个像素;成像单元(42),被配置成对像素子集的一个或多个像素进行成像,以形成像素图像 位于显示器前方的第一距离处的虚拟平面上的多个视点区域,所述多个视点区域彼此不重叠,所述不同子像素中的每一个的至少一个像素图像重叠在相同的一个 所述多个视区包括具有眼睛瞳孔直径的虚拟圆的假想平面和包围所述多个视野区域中的至少两个的至少一部分的所述假想圆,其中, 多个 至少部分地包围在假想圆内的视区相对于其中的至少一个像素图像彼此不同。 显示系统可以仅用于一只眼睛,或者用于观看者的两只眼睛或更多观看者的眼睛。
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