Patents by Inventor Rutger NIJLAND
Rutger NIJLAND has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11887285Abstract: To enable a high quality HDR video communication, which can work by sending corresponding LDR images potentially via established LDR video communication technologies, which works well in practical situations, applicant has invented a HDR video decoder (600, 1100) arranged to calculate a HDR image (Im_RHDR) based on applying to a received 100 nit standard dynamic range image (Im_RLDR) a set of luminance transformation functions, the functions comprising at least a coarse luminance mapping (FC), which is applied by a dynamic range optimizer (603), and a mapping of the darkest value (0) of an intermediate luma (Y?HPS), being output of the dynamic range optimizer, to a received black offset value (Bk_off) by a range stretcher (604), the video decoder comprising a gain limiter (611, 1105) arranged to apply an alternate luminance transformation function to calculate a subset (502) of the darkest luminances of the HDR image, from corresponding darkest lumas (Y?_in) of the standard dynamic range image.Type: GrantFiled: January 30, 2023Date of Patent: January 30, 2024Assignee: Koninklijke Philips N.V.Inventors: Johannes Yzebrand Tichelaar, Johannes Gerardus Rijk Van Mourik, Jeroen Hubert Christoffel Jacobus Stessen, Roeland Focco Everhard Goris, Mark Jozef Willem Mertens, Patrick Luc Els Vandewalle, Rutger Nijland
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Patent number: 11741873Abstract: To enable a better and more adjustable manner of HDR video display adaptation, applicants inventor contributed an image pixel luminance adaptation apparatus (500), comprising: a connection (501) to a comprised or connectable video decoder (207), which video decoder is arranged to receive an encoded high dynamic range image (Im_COD), which is encoded according to a first maximum codeable luminance (PB H), and which video decoder is arranged to receive metadata specifying at least one luma mapping function (F_ct; FL_50t1_1), which at least one luma mapping function specifies the offsets of luminances of a secondary image corresponding to the encoded high dynamic range image compared to the luminances of the same pixel positions as encoded in the encoded high dynamic range image, which secondary image has a second maximum codeable luminance (PB_S) which preferably is at least 4× smaller or larger than the first maximum codeable luminance (PB_H), and the video decoder being arranged to output a decoded high dynamType: GrantFiled: June 30, 2020Date of Patent: August 29, 2023Assignee: Koninklijke Philips N.V.Inventor: Rutger Nijland
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Publication number: 20230177659Abstract: To enable a high quality HDR video communication, which can work by sending corresponding LDR images potentially via established LDR video communication technologies, which works well in practical situations, applicant has invented a HDR video decoder (600, 1100) arranged to calculate a HDR image (Im_RHDR) based on applying to a received 100 nit standard dynamic range image (Im_RLDR) a set of luminance transformation functions, the functions comprising at least a coarse luminance mapping (FC), which is applied by a dynamic range optimizer (603), and a mapping of the darkest value (0) of an intermediate luma (Y?HPS), being output of the dynamic range optimizer, to a received black offset value (Bk_off) by a range stretcher (604), the video decoder comprising a gain limiter (611, 1105) arranged to apply an alternate luminance transformation function to calculate a subset (502) of the darkest luminances of the HDR image, from corresponding darkest lumas (Y?_in) of the standard dynamic range image.Type: ApplicationFiled: January 30, 2023Publication date: June 8, 2023Inventors: Johannes Yzebrand TICHELAAR, Johannes Gerardus Rijk VAN MOURIK, Jeroen Hubert Christoffel Jacobus STESSEN, Roeland Focco Everhard GORIS, Mark Jozef Willem MERTENS, Patrick Luc Els VANDEWALLE, Rutger NIJLAND
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Patent number: 11593922Abstract: To enable a high quality HDR video communication, which can work by sending corresponding LDR images potentially via established LDR video communication technologies, which works well in practical situations, applicant has invented a HDR video decoder (600, 1100) arranged to calculate a HDR image (Im_RHDR) based on applying to a received 100 nit standard dynamic range image (Im_RLDR) a set of luminance transformation functions, the functions comprising at least a coarse luminance mapping (FC), which is applied by a dynamic range optimizer (603), and a mapping of the darkest value (0) of an intermediate luma (Y?HPS), being output of the dynamic range optimizer, to a received black offset value (Bk_off) by a range stretcher (604), the video decoder comprising a gain limiter (611, 1105) arranged to apply an alternate luminance transformation function to calculate a subset (502) of the darkest luminances of the HDR image, from corresponding darkest lumas (Y?_in) of the standard dynamic range image.Type: GrantFiled: October 2, 2020Date of Patent: February 28, 2023Assignee: Koninklijke Philips N.V.Inventors: Johannes Yzebrand Tichelaar, Johannes Gerardus Rijk Van Mourik, Jeroen Hubert Christoffel Jacobus Stessen, Roeland Focco Everhard Goris, Mark Jozef Willem Mertens, Patrick Luc Els Vandewalle, Rutger Nijland
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Patent number: 11582434Abstract: To mitigate some problems of the pixel color mapping being used in HDR video decoding of the type of SLHDR, a high dynamic range video encoding circuit (300) is taught, configured to encode a high dynamic range image (IM_HDR) of a first maximum pixel luminance (PB_C1), together with a second image (Im_LWRDR) of lower dynamic range and corresponding lower second maximum pixel luminance (PB_C2), the second image being functionally encoded as a luma mapping function (400) for decoders to apply to pixel lumas (Y_PQ) of the high dynamic range image to obtain corresponding pixel lumas (PO) of the second image, the encoder comprising a data formatter (304) configured to output to a video communication medium (399) the high dynamic range image and metadata (MET) encoding the luma mapping function (400), the functional encoding of the second image being based also on a color lookup table (CL(Y_PQ)) which encodes a multiplier constant (B) for all possible values of the pixel lumas of the high dynamic range image, anType: GrantFiled: February 24, 2021Date of Patent: February 14, 2023Assignee: Koninklijke Philips N.V.Inventor: Rutger Nijland
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Publication number: 20220262293Abstract: To enable a better and more adjustable manner of HDR video display adaptation, applicants inventor contributed an image pixel luminance adaptation apparatus (500), comprising: a connection (501) to a comprised or connectable video decoder (207), which video decoder is arranged to receive an encoded high dynamic range image (Im_COD), which is encoded according to a first maximum codeable luminance (PB H), and which video decoder is arranged to receive metadata specifying at least one luma mapping function (F_ct; FL_50t1_1), which at least one luma mapping function specifies the offsets of luminances of a secondary image corresponding to the encoded high dynamic range image compared to the luminances of the same pixel positions as encoded in the encoded high dynamic range image, which secondary image has a second maximum codeable luminance (PB_S) which preferably is at least 4× smaller or larger than the first maximum codeable luminance (PB_H), and the video decoder being arranged to output a decoded high dynamType: ApplicationFiled: June 30, 2020Publication date: August 18, 2022Inventor: Rutger NIJLAND
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Patent number: 11272195Abstract: At least some applications in the total HDR video chain desire some more sophisticated approach, such as a high dynamic range video encoder (900), arranged to receive via an image input (920) an input high dynamic range image (MsterHDR) which has a first maximum pixel luminance (PB_C_H50), the encoder being arranged to receive via a metadata input (921) a master luma mapping function (FL_50t1), which luma mapping function defines the relationship between normalized lumas of the input high dynamic range image and normalized lumas of a corresponding standard dynamic range image (Im_LDR) having a maximum pixel luminance of preferably 100 nit, characterized in that the encoder further comprises a metadata input (923) to receive a second maximum pixel luminance (PB_CH), and the encoder further being characterized in that it comprises: —a HDR function generation unit (901) arranged to apply a standardized algorithm to transform the master luma mapping function (FL_50t1) into a adapted luma mapping function (F_H2hCIType: GrantFiled: August 22, 2019Date of Patent: March 8, 2022Assignee: Koninklijke Philips N.V.Inventors: Renatus Josephus Van Der Vleuten, Rutger Nijland, Johannes Yzebrand Tichelaar
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Patent number: 11195492Abstract: To enable practical and quick generation of a family of good looking HDR gradings for various displays on which the HDR image may need to be shown, we describe color transformation apparatus (201) to calculate resultant colors (R2, G2, B2) of pixels of an output image (IM_MDR) for a display with a display peak brightness (PB_D) starting from input colors (R,G,B) of pixels of an input image (Im_in) having a maximum luma code corresponding to a first image peak brightness (PB_IM1) which is different from the display peak brightness, characterized in that the color transformation apparatus comprises: a color transformation determination unit (102) arranged to determine a color transformation (TMF; g) from color processing specification data (MET_1) comprising at least one tone mapping function (CC) for at least a range of pixel luminances received via a metadata input (116), which color transformation specifies the calculation of at least some pixel colors of an image (IM_GRAD_LXDR) having corresponding to itType: GrantFiled: November 30, 2020Date of Patent: December 7, 2021Assignee: Koninklijke Philips N.V.Inventors: Johannes Gerardus Rijk Van Mourik, Mark Jozef Willem Mertens, Rutger Nijland
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Publication number: 20210360266Abstract: At least some applications in the total HDR video chain desire some more sophisticated approach, such as a high dynamic range video encoder (900), arranged to receive via an image input (920) an input high dynamic range image (MsterHDR) which has a first maximum pixel luminance (PB_C_H50), the encoder being arranged to receive via a metadata input (921) a master luma mapping function (FL_50t1), which luma mapping function defines the relationship between normalized lumas of the input high dynamic range image and normalized lumas of a corresponding standard dynamic range image (Im_LDR) having a maximum pixel luminance of preferably 100 nit, characterized in that the encoder further comprises a metadata input (923) to receive a second maximum pixel luminance (PB_CH), and the encoder further being characterized in that it comprises: —a HDR function generation unit (901) arranged to apply a standardized algorithm to transform the master luma mapping function (FL_50t1) into a adapted luma mapping function (F_H2hCIType: ApplicationFiled: August 22, 2019Publication date: November 18, 2021Inventors: RENATUS JOSEPHUS VAN DER VLEUTEN, RUTGER NIJLAND, JOHANNES YZEBRAND TICHELAAR
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Publication number: 20210266509Abstract: To mitigate some problems of the pixel color mapping being used in HDR video decoding of the type of SLHDR, a high dynamic range video encoding circuit (300) is taught, configured to encode a high dynamic range image (IM_HDR) of a first maximum pixel luminance (PB_C1), together with a second image (Im_LWRDR) of lower dynamic range and corresponding lower second maximum pixel luminance (PB_C2), the second image being functionally encoded as a luma mapping function (400) for decoders to apply to pixel lumas (Y_PQ) of the high dynamic range image to obtain corresponding pixel lumas (PO) of the second image, the encoder comprising a data formatter (304) configured to output to a video communication medium (399) the high dynamic range image and metadata (MET) encoding the luma mapping function (400), the functional encoding of the second image being based also on a color lookup table (CL(Y_PQ)) which encodes a multiplier constant (B) for all possible values of the pixel lumas of the high dynamic range image, anType: ApplicationFiled: February 24, 2021Publication date: August 26, 2021Inventor: Rutger NIJLAND
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Publication number: 20210174761Abstract: To enable practical and quick generation of a family of good looking HDR gradings for various displays on which the HDR image may need to be shown, we describe color transformation apparatus (201) to calculate resultant colors (R2, G2, B2) of pixels of an output image (IM_MDR) for a display with a display peak brightness (PB_D) starting from input colors (R,G,B) of pixels of an input image (Im_in) having a maximum luma code corresponding to a first image peak brightness (PB_IM1) which is different from the display peak brightness, characterized in that the color transformation apparatus comprises: a color transformation determination unit (102) arranged to determine a color transformation (TMF; g) from color processing specification data (MET_1) comprising at least one tone mapping function (CC) for at least a range of pixel luminances received via a metadata input (116), which color transformation specifies the calculation of at least some pixel colors of an image (IM_GRAD_LXDR) having corresponding to itType: ApplicationFiled: November 30, 2020Publication date: June 10, 2021Inventors: Johannes Gerardus Rijk VAN MOURIK, Mark Jozef Willem MERTENS, Rutger NIJLAND
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Publication number: 20210019868Abstract: To enable a high quality HDR video communication, which can work by sending corresponding LDR images potentially via established LDR video communication technologies, which works well in practical situations, applicant has invented a HDR video decoder (600, 1100) arranged to calculate a HDR image (Im_RHDR) based on applying to a received 100 nit standard dynamic range image (Im_RLDR) a set of luminance transformation functions, the functions comprising at least a coarse luminance mapping (FC), which is applied by a dynamic range optimizer (603), and a mapping of the darkest value (0) of an intermediate luma (Y?HPS), being output of the dynamic range optimizer, to a received black offset value (Bk_off) by a range stretcher (604), the video decoder comprising a gain limiter (611, 1105) arranged to apply an alternate luminance transformation function to calculate a subset (502) of the darkest luminances of the HDR image, from corresponding darkest lumas (Y?_in) of the standard dynamic range image.Type: ApplicationFiled: October 2, 2020Publication date: January 21, 2021Inventors: Johannes Yzebrand TICHELAAR, Johannes Gerardus Rijk VAN MOURIK, Jeroen Hubert Christoffel Jacobus STESSEN, Roeland Focco Everhard GORIS, Mark Jozef Willem MERTENS, Patrick Luc Els VANDEWALLE, Rutger NIJLAND
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Patent number: 10878776Abstract: This invention enables a family of HDR gradings for various displays on which the HDR image may need to be shown. The HDR color gradings are obtained by calculating resultant colors of pixels of an output image for a display with a display peak brightness. The calculation begins from input colors of pixels of an input image, the input image having a maximum luma code corresponding to a first image peak brightness. The first image peak brightness is different from the display peak brightness. The color transformation determination determines a color transformation from color processing specification data. The color processing specification data has at least one tone mapping function for at least a range of pixel luminances received via a metadata input.Type: GrantFiled: June 14, 2019Date of Patent: December 29, 2020Assignee: Koninklijke Philips N.V.Inventors: Johannes Gerardus Rijk Van Mourik, Mark Jozef Willem Mertens, Rutger Nijland
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Patent number: 10863201Abstract: To enable practical and quick generation of a family of good looking HDR gradings for various displays on which the HDR image may need to be shown, we describe a color transformation apparatus (201) to calculate resultant colors (R2, G2, B2) of pixels of an output image (IM_MDR) for a display with a display peak brightness (PB_D) starting from input colors (R, G, B) of pixels of an input image (Im_in) having a maximum luma code corresponding to a first image peak brightness (PB_IM1) which is different from the display peak brightness, characterized in that the color transformation apparatus comprises: —a color transformation determination unit (102; 2501) arranged to determine a color transformation (TMF; g) as defined in color processing specification data (MET_1) comprising at least one tone mapping function (CC) received via a metadata input (116), which color transformation specifies how the luminances of pixels of the input image are to be converted into luminances for those pixels of a second image (IM_Type: GrantFiled: December 21, 2016Date of Patent: December 8, 2020Assignee: Koninklijke Philips N.V.Inventors: Mark Jozef Willem Mertens, Rutger Nijland, Johannes Gerardus Rijk Van Mourik, Johannes Yzebrand Tichelaar
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Patent number: 10803562Abstract: To enable a high quality HDR video communication, which can work by sending corresponding LDR images potentially via established LDR video communication technologies, which works well in practical situations, applicant has invented a HDR video decoder (600, 1100) arranged to calculate a HDR image (Im_RHDR) based on applying to a received 100 nit standard dynamic range image (Im_RLDR) a set of luminance 5 transformation functions, the functions comprising at least a coarse luminance mapping (FC), which is applied by a dynamic range optimizer (603), and a mapping of the darkest value (0) of an intermediate luma (Y?HPS), being output of the dynamic range optimizer, to a received black offset value (Bk_off) by a range stretcher (604), the video decoder comprising a gain limiter (611, 1105) arranged to apply an alternate luminance transformation function to 10 calculate a subset (502) of the darkest luminances of the HDR image, from corresponding darkest lumas (Y?_in) of the standard dynamic range image.Type: GrantFiled: March 15, 2017Date of Patent: October 13, 2020Assignee: Koninklijke Philips N.V.Inventors: Johannes Yzebrand Tichelaar, Johannes Gerardus Rijk Van Mourik, Jeroen Hubert Christoffel Jacobus Stessen, Roeland Focco Everhard Goris, Mark Jozef Willem Mertens, Patrick Luc Els Vandewalle, Rutger Nijland
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Publication number: 20190311694Abstract: To enable practical and quick generation of a family of good looking HDR gradings for various displays on which the HDR image may need to be shown, we describe color transformation apparatus (201) to calculate resultant colors (R2, G2, B2) of pixels of an output image (IM_MDR) for a display with a display peak brightness (PB_D) starting from input colors (R,G,B) of pixels of an input image (Im_in) having a maximum luma code corresponding to a first image peak brightness (PB_IM1) which is different from the display peak brightness, characterized in that the color transformation apparatus comprises: a color transformation determination unit (102) arranged to determine a color transformation (TMF; g) from color processing specification data (MET_1) comprising at least one tone mapping function (CC) for at least a range of pixel luminances received via a metadata input (116), which color transformation specifies the calculation of at least some pixel colors of an image (IM_GRAD_LXDR) having corresponding to itType: ApplicationFiled: June 14, 2019Publication date: October 10, 2019Inventors: Johannes Gerardus Rijk VAN MOURIK, Mark Jozef Willem MERTENS, Rutger NIJLAND
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Patent number: 10419767Abstract: Because we needed a new improved and very different color encoding space for being able to faithfully encode the presently emerging high dynamic range video for good quality rendering on emerging HDR displays such as the SIM2 display, the video encoder (300) with an input (308) to obtain a video from a video source (301) wherein pixel colors are encoded in an (XYZ) color encoding, the video encoder comprising an opto-electronic conversion unit (304) arranged to convert the luminances (Y) of the pixel colors into lumas (Y?) with a predetermined code allocation function (F), characterized in that the video encoder comprises a chromaticity determination unit (310), which is arranged to encode chromaticities (u?,v?) of pixel colors with lumas (Y?) below a predetermined threshold luma (E?) with a mathematical chromaticity definition which yields a maximum encodable saturation (S_bL) for a particular hue for pixel colors with a luma below the predetermined threshold luma (E?) which is lower than a maximum encodableType: GrantFiled: February 12, 2015Date of Patent: September 17, 2019Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Jeroen Hubert Christoffel Stessen, Renatus Josephus Van Der Vleuten, Johannes Gerardus Rijk Van Mourik, Rutger Nijland
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Patent number: 10366672Abstract: Color transformation apparatus (201) for calculating resultant colors (R2, G2, B2) of pixels of an output image for a display with a display peak brightness (PB_D) starting from input colors (R,G,B) of pixels of an input image (Im_in) having a maximum luma code corresponding to a first image peak brightness (PB_H) which is different from the display peak brightness, said color transformation apparatus comprising: a color transformation determination unit (102) arranged to determine a color transformation (g) from color processing specification data (MET) comprising at least one tone mapping function (CC) for at least a range of pixel luminances received via a metadata input (116), which color transformation specifies the calculation of at least some pixel colors of an image having corresponding to its maximum luma code a second image peak brightness (PB_L), which is different from the display peak brightness (PB_D) and the first image peak brightness (PB_H), and whereby the division of the first image peak brType: GrantFiled: September 2, 2015Date of Patent: July 30, 2019Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Johannes Gerardus Rijk Van Mourik, Mark Jozef Willem Mertens, Rutger Nijland
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Publication number: 20190130542Abstract: To enable a high quality HDR video communication, which can work by sending corresponding LDR images potentially via established LDR video communication technologies, which works well in practical situations, applicant has invented a HDR video decoder (600, 1100) arranged to calculate a HDR image (Im_RHDR) based on applying to a received 100 nit standard dynamic range image (Im_RLDR) a set of luminance 5 transformation functions, the functions comprising at least a coarse luminance mapping (FC), which is applied by a dynamic range optimizer (603), and a mapping of the darkest value (0) of an intermediate luma (Y?HPS), being output of the dynamic range optimizer, to a received black offset value (Bk_off) by a range stretcher (604), the video decoder comprising a gain limiter (611, 1105) arranged to apply an alternate luminance transformation function to 10 calculate a subset (502) of the darkest luminances of the HDR image, from corresponding darkest lumas (Y?_in) of the standard dynamic range image.Type: ApplicationFiled: March 15, 2017Publication date: May 2, 2019Inventors: Johannes Yzebrand TICHELAAR, Johannes Gerardus Rijk VAN MOURIK, Jeroen Hubert Christoffel Jacobus STESSEN, Roeland Focco Everhard GORIS, Mark Jozef Willem MERTENS, Patrick Luc Els VANDEWALLE, Rutger NIJLAND
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Publication number: 20190052908Abstract: To enable practical and quick generation of a family of good looking HDR gradings for various displays on which the HDR image may need to be shown, we describe a color transformation apparatus (201) to calculate resultant colors (R2, G2, B2) of pixels of an output image (IM_MDR) for a display with a display peak brightness (PB_D) starting from input colors (R, G, B) of pixels of an input image (Im_in) having a maximum luma code corresponding to a first image peak brightness (PB_IM1) which is different from the display peak brightness, characterized in that the color transformation apparatus comprises: —a color transformation determination unit (102; 2501) arranged to determine a color transformation (TMF; g) as defined in color processing specification data (MET_1) comprising at least one tone mapping function (CC) received via a metadata input (116), which color transformation specifies how the luminances of pixels of the input image are to be converted into luminances for those pixels of a second image (IM_Type: ApplicationFiled: December 21, 2016Publication date: February 14, 2019Inventors: Mark Jozef Willem MERTENS, Rutger NIJLAND, Johannes Gerardus Rijk VAN MOURIK, Johannes Yzebrand TICHELAAR