Patents by Inventor Renatus Josephus van der Vleuten
Renatus Josephus van der Vleuten 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).
-
Patent number: 11949921Abstract: Methods and apparatuses to encode both high dynamic range images and low dynamic range images. The input video may also convert the high dynamic range image to an image of lower luminance dynamic range by applying either a scaling the high dynamic range image to a predetermined scale of the luma axis or by applying a sensitivity tone mapping which changes the brightnesses of pixel colors falling within a subrange or by applying a gamma function or by applying an arbitrary monotonically increasing function mapping the lumas.Type: GrantFiled: December 1, 2022Date of Patent: April 2, 2024Assignee: Koninklijke Philips N.V.Inventors: Renatus Josephus Van Der Vleuten, Mark Jozef Willem Mertens
-
Patent number: 11928803Abstract: An image processing apparatus comprises a receiver (201) for receiving an image signal which comprises at least an encoded image and a target display reference. The target display reference is indicative of a dynamic range of a target display for which the encoded image is encoded. A dynamic range processor (203) generates an output image by applying a dynamic range transform to the encoded image in response to the target display reference. An output (205) then outputs an output image signal comprising the output image, e.g. to a suitable display. The dynamic range transform may furthermore be performed in response to a display dynamic range indication received from a display. The invention may be used to generate an improved High Dynamic Range (HDR) image from e.g. a Low Dynamic Range (LDR) image, or vice versa.Type: GrantFiled: January 18, 2019Date of Patent: March 12, 2024Assignee: Koninklijke Philips N.V.Inventors: Charles Leonardus Cornelius Maria Knibbeler, Renatus Josephus Van Der Vleuten, Wiebe De Haan
-
Publication number: 20230188761Abstract: To enable a good HDR image or video coding technology, being able to yield high dynamic range images as well as low dynamic range images, we invented a method of encoding a high dynamic range image (M_HDR), comprising the steps of: converting the high dynamic range image to an image of lower luminance dynamic range (LDR_o) by applying a) scaling the high dynamic range image to a predetermined scale of the luma axis such as [0,1], b) applying a sensitivity tone mapping which changes the brightnesses of pixel colors falling within at least a subrange comprising the darker colors in the high dynamic range image, c) applying a gamma function, and d) applying an arbitrary monotonically increasing function mapping the lumas resulting from performing the steps b and c to output lumas of the lower dynamic range image (LDR_o); and outputting in an image signal (S_im) a codification of the pixel colors of the lower luminance dynamic range image (LDR_o), and outputting in the image signal (S_im) values encoding the funcType: ApplicationFiled: December 1, 2022Publication date: June 15, 2023Inventors: Renatus Josephus VAN DER VLEUTEN, Mark Jozef Willem MERTENS
-
Patent number: 11640656Abstract: An image processing apparatus comprises a receiver (201) for receiving an image signal which comprises at least an encoded image and a target display reference. The target display reference is indicative of a dynamic range of a target display for which the encoded image is encoded. A dynamic range processor (203) generates an output image by applying a dynamic range transform to the encoded image in response to the target display reference. An output (205) then outputs an output image signal comprising the output image, e.g. to a suitable display. The dynamic range transform may furthermore be performed in response to a display dynamic range indication received from a display. The invention may be used to generate an improved High Dynamic Range (HDR) image from e.g. a Low Dynamic Range (LDR) image, or vice versa.Type: GrantFiled: September 20, 2012Date of Patent: May 2, 2023Assignee: Koninklijke Philips N.V.Inventors: Charles Leonardus Cornelius Maria Knibbeler, Renatus Josephus Van Der Vleuten, Wiebe De Haan
-
Patent number: 11533516Abstract: To enable a good HDR image or video coding technology, being able to yield high dynamic range images as well as low dynamic range images, we invented a method of encoding a high dynamic range image (M_HDR), comprising the steps of: converting the high dynamic range image to an image of lower luminance dynamic range (LDR_o) by applying a) scaling the high dynamic range image to a predetermined scale of the luma axis such as [0,1], b) applying a sensitivity tone mapping which changes the brightnesses of pixel colors falling within at least a subrange comprising the darker colors in the high dynamic range image, c) applying a gamma function, and d) applying an arbitrary monotonically increasing function mapping the lumas resulting from performing the steps b and c to output lumas of the lower dynamic range image (LDR_o); and outputting in an image signal (S_im) a codification of the pixel colors of the lower luminance dynamic range image (LDR_o), and outputting in the image signal (S_im) values encoding the fType: GrantFiled: August 5, 2020Date of Patent: December 20, 2022Assignee: Koninklijke Philips N.V.Inventors: Renatus Josephus Van Der Vleuten, Mark Jozef Willem Mertens
-
Publication number: 20220343477Abstract: An image processing apparatus comprises a receiver (201) for receiving an image signal comprising an encoded image. Another receiver (1701) receives a data signal from a display (107) where the data signal comprises a data field that comprises a display dynamic range indication of the display (107). The display dynamic range indication comprises at least one luminance specification for the display. A dynamic range processor (203) is arranged to generate an output image by applying a dynamic range transform to the encoded image in response to the display dynamic range indication. An output (205) outputs an output image signal comprising the output image to the display. The transform may furthermore be performed in response to a target display reference indicative of a dynamic range of display for which the encoded image is encoded. The invention may be used to generate an improved High Dynamic Range (HDR) image from e.g. a Low Dynamic Range (LDR) image, or vice versa.Type: ApplicationFiled: July 8, 2022Publication date: October 27, 2022Inventors: RENATUS JOSEPHUS VAN DER VLEUTEN, CHARLES LENONARDUS CORNELIUS MARIA KNIBBELER
-
Patent number: 11423523Abstract: An image processing apparatus comprises a receiver (201) for receiving an image signal comprising an encoded image. Another receiver (1701) receives a data signal from a display (107) where the data signal comprises a data field that comprises a display dynamic range indication of the display (107). The display dynamic range indication comprises at least one luminance specification for the display. A dynamic range processor (203) is arranged to generate an output image by applying a dynamic range transform to the encoded image in response to the display dynamic range indication. An output (205) outputs an output image signal comprising the output image to the display. The transform may furthermore be performed in response to a target display reference indicative of a dynamic range of display for which the encoded image is encoded. The invention may be used to generate an improved High Dynamic Range (HDR) image from e.g. a Low Dynamic Range (LDR) image, or vice versa.Type: GrantFiled: January 20, 2021Date of Patent: August 23, 2022Assignee: Koninklijke Philips N.V.Inventors: Renatus Josephus Van Der Vleuten, Charles Leonardus Cornelius Maria Knibbeler
-
Patent number: 11368724Abstract: To enable a good HDR image or video coding technology, being able to yield high dynamic range images as well as low dynamic range images, we invented a method of encoding a high dynamic range image (M_HDR), comprising the steps of: converting the high dynamic range image to an image of lower luminance dynamic range (LDR_o) by applying a) scaling the high dynamic range image to a predetermined scale of the luma axis such as [0,1], b) applying a sensitivity tone mapping which changes the brightnesses of pixel colors falling within at least a subrange comprising the darker colors in the high dynamic range image, c) applying a gamma function, and d) applying an arbitrary monotonically increasing function mapping the lumas resulting from performing the steps b and c to output lumas of the lower dynamic range image (LDR_o); and outputting in an image signal (S_im) a codification of the pixel colors of the lower luminance dynamic range image (LDR_o), and outputting in the image signal (S_im) values encoding the fType: GrantFiled: September 3, 2020Date of Patent: June 21, 2022Assignee: Koninklijke Philips N.V.Inventors: Renatus Josephus Van Der Vleuten, Mark Jozef Willem Mertens
-
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
-
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
-
Publication number: 20210142453Abstract: An image processing apparatus comprises a receiver (201) for receiving an image signal comprising an encoded image. Another receiver (1701) receives a data signal from a display (107) where the data signal comprises a data field that comprises a display dynamic range indication of the display (107). The display dynamic range indication comprises at least one luminance specification for the display. A dynamic range processor (203) is arranged to generate an output image by applying a dynamic range transform to the encoded image in response to the display dynamic range indication. An output (205) outputs an output image signal comprising the output image to the display. The transform may furthermore be performed in response to a target display reference indicative of a dynamic range of display for which the encoded image is encoded. The invention may be used to generate an improved High Dynamic Range (HDR) image from e.g. a Low Dynamic Range (LDR) image, or vice versa.Type: ApplicationFiled: January 20, 2021Publication date: May 13, 2021Inventors: RENATUS JOSEPHUS VAN DER VLEUTEN, CHARLES LENONARDUS CORNELIUS MARIA KNIBBELER
-
Patent number: 10916000Abstract: An image processing apparatus comprises a receiver (201) for receiving an image signal comprising an encoded image. Another receiver (1701) receives a data signal from a display (107) where the data signal comprises a data field that comprises a display dynamic range indication of the display (107). The display dynamic range indication comprises at least one luminance specification for the display. A dynamic range processor (203) is arranged to generate an output image by applying a dynamic range transform to the encoded image in response to the display dynamic range indication. An output (205) outputs an output image signal comprising the output image to the display. The transform may furthermore be performed in response to a target display reference indicative of a dynamic range of display for which the encoded image is encoded. The invention may be used to generate an improved High Dynamic Range (HDR) image from e.g. a Low Dynamic Range (LDR) image, or vice versa.Type: GrantFiled: September 20, 2012Date of Patent: February 9, 2021Assignee: Koninklijke Philips N.V.Inventors: Renatus Josephus Van Der Vleuten, Charles Leonardus Cornelius Maria Knibbeler
-
Publication number: 20200404343Abstract: To enable a good HDR image or video coding technology, being able to yield high dynamic range images as well as low dynamic range images, we invented a method of encoding a high dynamic range image (M_HDR), comprising the steps of: converting the high dynamic range image to an image of lower luminance dynamic range (LDR_o) by applying a) scaling the high dynamic range image to a predetermined scale of the luma axis such as [0,1], b) applying a sensitivity tone mapping which changes the brightnesses of pixel colors falling within at least a subrange comprising the darker colors in the high dynamic range image, c) applying a gamma function, and d) applying an arbitrary monotonically increasing function mapping the lumas resulting from performing the steps b and c to output lumas of the lower dynamic range image (LDR_o); and outputting in an image signal (S_im) a codification of the pixel colors of the lower luminance dynamic range image (LDR_o), and outputting in the image signal (S_im) values encoding the fType: ApplicationFiled: September 3, 2020Publication date: December 24, 2020Inventors: Renatus Josephus VAN DER VLEUTEN, Mark Jozef Willem MERTENS
-
Publication number: 20200366943Abstract: To enable a good HDR image or video coding technology, being able to yield high dynamic range images as well as low dynamic range images, we invented a method of encoding a high dynamic range image (M_HDR), comprising the steps of: converting the high dynamic range image to an image of lower luminance dynamic range (LDR_o) by applying a) scaling the high dynamic range image to a predetermined scale of the luma axis such as [0,1], b) applying a sensitivity tone mapping which changes the brightnesses of pixel colors falling within at least a subrange comprising the darker colors in the high dynamic range image, c) applying a gamma function, and d) applying an arbitrary monotonically increasing function mapping the lumas resulting from performing the steps b and c to output lumas of the lower dynamic range image (LDR_o); and outputting in an image signal (S_im) a codification of the pixel colors of the lower luminance dynamic range image (LDR_o), and outputting in the image signal (S_im) values encoding the fType: ApplicationFiled: August 5, 2020Publication date: November 19, 2020Inventors: Renatus Josephus VAN DER VLEUTEN, Mark Jozef Willem MERTENS
-
Patent number: 10779013Abstract: A method of encoding a high dynamic range image. First converting the high dynamic range image to an image of lower luminance dynamic range by applying scaling the high dynamic range image to a predetermined scale of the luma axis. Next, applying a sensitivity tone mapping which changes the brightness of pixel colors falling within at least a subrange comprising the darker colors in the high dynamic range image. Then applying a gamma function. Finally, applying an arbitrary monotonically increasing function mapping the lumas resulting from the sensitivity tone mapping and gamma adjustments to output lumas of a lower dynamic range image. Producing in an image signal a codification of the pixel colors of the lower luminance dynamic range image and outputting in the image signal values encoding the functional behavior of the above color conversions as metadata, or values for the inverse functions.Type: GrantFiled: August 27, 2018Date of Patent: September 15, 2020Assignee: Koninklijke Philips N.V.Inventors: Renatus Josephus Van Der Vleuten, Mark Jozef Willem Mertens
-
Patent number: 10728560Abstract: A video encoder and decoder system includes a video decoder (220) converting in input HDR images in a luma and chrominance representation to SDR images in a luma and subsampled chrominance representation by directly applying dynamic range conversion gains in the luma and subsampled chrominance domain. An video encoder may perform the opposite operation and convert from SDR to HDR by directly applying dynamic range conversion gains in the luma and subsampled chrominance domain.Type: GrantFiled: January 27, 2017Date of Patent: July 28, 2020Assignee: Koninklijke Philips N.V.Inventor: Renatus Josephus Van Der Vleuten
-
Patent number: 10504216Abstract: An image color processing apparatus to change a luminance dynamic range includes a maximum calculation unit configured to calculate the maximum of at least three components of the input color; a brightness mapper configured to apply a predetermined function to the maximum, yielding an output value, where the function has a constraint that the output value for the highest value of the maximum cannot be higher than 1.0; a scaling parameter calculator configured to calculate a scaling parameter being equal to the output value divided by the maximum; a multiplier configured to multiply the three color components of the input color by the scaling parameter, yielding the color components of the output color; and at least one component multiplier configured to multiply a component of the input color with a weight being a real number yielding a scaled component prior to input of that component in the maximum calculation unit.Type: GrantFiled: October 22, 2015Date of Patent: December 10, 2019Assignee: Koninklijke Philips N.V.Inventors: Renatus Josephus Van Der Vleuten, Jeroen Hubert Christoffel Jacobus Stessen
-
Patent number: 10419689Abstract: To enable better encoding of the currently starting to appear high dynamic range images for use in full high dynamic range technical systems (containing an HDR display, and e.g. in an HDR grading application), we invented a method of constructing a code allocation function for allocating pixel colors having pixel luminances to codes encoding such pixel luminances, in which the step of determining the code allocation function to be applied to at least one color coordinate of the pixel to obtain a code value, comprises constructing that function out of at least two partial functions, and similar methods at a receiving side, and apparatuses, and signals for communicating between the two sites. This method allows—in line with applicant's technical approach that HDR images should actually be communicated as a spectrum of differently regraded different dynamic range images of the same scene, e.g.Type: GrantFiled: November 30, 2018Date of Patent: September 17, 2019Assignee: Koninklijke Philips N.V.Inventor: Renatus Josephus Van Der Vleuten
-
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
-
Publication number: 20190172187Abstract: An image processing apparatus comprises a receiver (201) for receiving an image signal which comprises at least an encoded image and a target display reference. The target display reference is indicative of a dynamic range of a target display for which the encoded image is encoded. A dynamic range processor (203) generates an output image by applying a dynamic range transform to the encoded image in response to the target display reference. An output (205) then outputs an output image signal comprising the output image, e.g. to a suitable display. The dynamic range transform may furthermore be performed in response to a display dynamic range indication received from a display. The invention may be used to generate an improved High Dynamic Range (HDR) image from e.g. a Low Dynamic Range (LDR) image, or vice versa.Type: ApplicationFiled: February 8, 2019Publication date: June 6, 2019Inventors: Charles Leonardus Cornelius Maria KNIBBELER, Renatus Josephus VAN DER VLEUTEN, Wiebe DE HAAN