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公开(公告)号：US11508043B2
公开(公告)日：2022-11-22
申请号：US16904952
申请日：2020-06-18
Applicant: Connaught Electronics Ltd
Inventor： Mark Griffin
Abstract: A method for reducing abasing artefacts in an output image may include obtaining a plurality of input images captured by a plurality of cameras, each camera having a different field of view of an environment surrounding a vehicle, wherein the plurality of input images are mapped to the output image to represent the environment, from a predefined virtual point of view. The method may further include for each pixel position in the output image, obtaining a first pixel density value corresponding to a first output pixel position in the output image; and upon determining that the first pixel density value is higher than a threshold, calculating a first output brightness value corresponding to the first output pixel position based at least on a plurality of brightness values corresponding to a plurality of neighboring pixels of a corresponding position in a first input image of the plurality of input images.
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公开(公告)号：US11832019B2
公开(公告)日：2023-11-28
申请号：US17821874
申请日：2022-08-24
Applicant: Connaught Electronics Ltd.
Inventor： Mark Griffin , Aidan Casey , Emre Turgay , Alex Perkins
IPC: H04N5/265 , H04N5/268 , G06V10/25 , G06V20/56 , H04N23/76 , H04N23/90 , H04N9/64 , H04N9/67 , H04N9/68 , B60R1/22
CPC classification number: H04N5/265 , G06V10/25 , G06V20/588 , H04N5/268 , H04N9/646 , H04N9/67 , H04N9/68 , H04N23/76 , H04N23/90 , B60R1/22 , B60R2300/105 , B60R2300/20 , B60R2300/304
Abstract: An image processing method for harmonizing images acquired by a first camera and a second camera connected to a vehicle and arranged in such a way as their fields of view cover a same road space at different times as the vehicle travels along a travel direction is disclosed. The method includes: acquiring by a selected camera, a first image at a first time; selecting a first region of interest bounding a road portion from the first image; sampling the first region of interest; acquiring by the other camera, a second image in such a way that the road portion is included in a second region of interest; sampling the second region of interest; and determining one or more correction parameters for harmonizing images acquired by the first and second cameras, based on a comparison between the image content of the first and second regions of interest.
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公开(公告)号：US20210398256A1
公开(公告)日：2021-12-23
申请号：US16904952
申请日：2020-06-18
Applicant: Connaught Electronics Ltd
Inventor： Mark Griffin
Abstract: Techniques are described for a method for reducing aliasing artefacts in an output image, comprising obtaining a plurality of input images captured by a plurality of cameras, each camera having a different field of view of an environment surrounding a vehicle, wherein the plurality of input images are being mapped to the output image such that the output image represents the environment from a predefined virtual point of view. In addition, the techniques include for each pixel position in the output image, obtaining a first pixel density value corresponding to a first output pixel position in the output image; and upon determining that the first pixel density value is higher than a threshold, calculating a first output brightness value corresponding to the first output pixel position based at least on a plurality of brightness values corresponding to a plurality of neighboring pixels of a corresponding position in a first input image of the plurality of input images.
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公开(公告)号：US20230064558A1
公开(公告)日：2023-03-02
申请号：US17821874
申请日：2022-08-24
Applicant: Connaught Electronics Ltd.
Inventor： Mark Griffin , Aidan Casey , Emre Turgay , Alex Perkins
IPC: H04N5/265 , H04N5/247 , G06V10/25 , G06V20/56 , G06V10/75 , H04N5/268 , H04N9/67 , H04N5/243 , H04N9/64 , H04N9/68
Abstract: An image processing method for harmonizing images acquired by a first camera and a second camera connected to a vehicle and arranged in such a way as their fields of view cover a same road space at different times as the vehicle travels along a travel direction is disclosed. The method includes: acquiring by a selected camera, a first image at a first time; selecting a first region of interest bounding a road portion from the first image; sampling the first region of interest; acquiring by the other camera, a second image in such a way that the road portion is included in a second region of interest; sampling the second region of interest; and determining one or more correction parameters for harmonizing images acquired by the first and second cameras, based on a comparison between the image content of the first and second regions of interest.
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