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Patent Agency Ranking
公开(公告)号：US20240378711A1
公开(公告)日：2024-11-14
申请号：US18558876
申请日：2021-05-06
Applicant: FONDATION B-COM
Inventor： Foteini Tania POULI
Abstract: An image processing device for converting an input image having a first dynamic range into an output image having a second dynamic range distinct from the first dynamic range includes a mapping unit for transforming, using a conversion parameter, an input luminance value associated with a pixel of the input image into an output luminance value associated with the corresponding pixel in the output image. The mapping unit includes a processing module based on a neural network, the neural network being configured to receive as an input a statistical representation depending on a plurality of input luminance values respectively associated with a plurality of pixels of the input image, the neural network being configured to provide as an output the conversion parameter. A method for converting an input image into an output image is also provided.
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公开(公告)号：US20240046435A1
公开(公告)日：2024-02-08
申请号：US18258507
申请日：2020-12-21
Applicant: FONDATION B-COM
Inventor： Foteini Tania POULI , Olivier WEPPE , Jean-Yves AUBIÉ
CPC classification number: G06T5/009 , G06V10/60 , G06T2207/20208
Abstract: An image processing device and method for converting an input image having a first dynamic range into an output image having a second dynamic range higher than the first dynamic range are provided. The image processing device includes a mapping unit for transforming an input luminance value associated with a pixel of the input image into an output luminance value associated with the corresponding pixel in the output image. The mapping unit is configured to apply a continuous and increasing function mapping a first range of values into a second range of values, whereby the highest value in the first range of values is mapped by the continuous and increasing function into a supremum of the second range of values. The mapping unit is configured to adjust the supremum depending on a peak luminance.
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公开(公告)号：US20230050498A1
公开(公告)日：2023-02-16
申请号：US17786091
申请日：2020-12-18
Applicant: FONDATION B-COM
Inventor： Foteini Tania POULI , Olivier WEPPE , Benoît LE LUDEC
IPC: G06T5/00
Abstract: The invention concerns a method for converting an input image comprising an input luminance component made of elements into an output image comprising an output luminance component made of elements, the respective ranges of the output luminance component values and input luminance component element values being of different range extension. the method comprises for the input image: computing a value of a general variable representative of at least two input luminance component element values; transforming each input luminance component element value into a corresponding output luminance component element value according to the computed general variable value; and converting the input image using the determined output luminance component element values. The transforming step uses a set of pre-determined output values organized into a 2D Look-Up-Table (2D LUT) comprising two input arrays indexing a set of chosen input luminance component values and a set of chosen general variable values respectively, each pre-determined output value matching a pair of values made of an indexed input luminance component value and an indexed general variable value, the input luminance component element value being transformed into the output luminance component element value using at least one predetermined output value.
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4.发明申请公开(公告)号：US20250061553A1
公开(公告)日：2025-02-20
申请号：US18720185
申请日：2021-12-15
Applicant: FONDATION B-COM
Inventor： Olivier WEPPE , Benoît LE LUDEC , Foteini Tania POULI
Abstract: An electronic device for converting an input image having a first dynamic range into an output image having a second dynamic range comprises a computing unit and a converting unit, wherein: —the computing unit comprises a computing input physical interface and a computing output physical interface, —the converting unit comprises a converting input physical interface, a parameter input physical interface and a converting output physical interface, —the computing unit is configured to receive data representative of a first image via the computing input physical interface, —the converting unit is configured to receive data representative of a second image via the converting input physical interface, —the computing unit is configured to compute at least one statistical parameter characteristic of the first image, —the computing unit is configured to transmit the at least one statistical parameter characteristic of the first image via the computing output physical interface, —the converting unit is configured to receive entry data via the parameter input physical interface, —the converting unit is configured to convert the second image into at least one part of the output image based on the entry data.
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公开(公告)号：US20210195139A1
公开(公告)日：2021-06-24
申请号：US17127115
申请日：2020-12-18
Applicant: FONDATION B-COM
Inventor： Foteini Tania POULI , Cambodge BIST , Jean-Yves AUBIE
Abstract: A method is described for converting an input image into an output image, the output image including an output luminance component made of elements. The method includes: obtaining an input luminance component from the input image; determining the output luminance component, the respective ranges of the output luminance component element values and input luminance component element values being of different range extension, the determining step including: —determining a first intermediate luminance component from the input luminance component and an exponent, —obtaining a mapping profile allowing for mapping a luminance component based on the input luminance component into the output luminance component, —determining a second intermediate luminance component from the input luminance component and the obtained mapping profile, —determining the output luminance component from the first and second intermediate luminance components; and converting the input image into the output image.
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