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公开(公告)号：US20230291880A1
公开(公告)日：2023-09-14
申请号：US18181331
申请日：2023-03-09
Applicant: DENSO CORPORATION
Inventor： Kazuhiko KOBAYASHI
Abstract: In an image processing apparatus, an image corrector ascertains, for each pixel of a selected pixel region included in an image captured by an imaging unit, luminance-value ratios of respective colors of color filters in accordance with (i) a color luminance value of the corresponding pixel of the selected pixel region, and (ii) ascertainment data items predetermined for the respective colors if a measured illumination level around the imaging unit is lower than or equal to a predetermined threshold illumination level. The ascertainment data item, predetermined for each color, represents a corresponding color luminance-value ratio at any pixel in the selected pixel region with respect to a predetermined peak luminance value of the corresponding color in the selected pixel region. The image corrector generates a corrected image in accordance with the luminance-value ratios of the respective colors ascertained for each pixel of the selected pixel region.
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公开(公告)号：US20220201189A1
公开(公告)日：2022-06-23
申请号：US17645427
申请日：2021-12-21
Applicant: DENSO CORPORATION
Inventor： Kazuhiko KOBAYASHI
Abstract: An image processing device is enabled to appropriately restore a contrast of a camera image. An in-vehicle camera has an image capture unit that captures images of surroundings of a vehicle through a windshield of the vehicle. A hood is disposed below the image capture unit and is present within an angle of view of the image capture unit. The control unit includes a luminance acquirer that acquires a luminance parameter indicating a degree of luminance of the hood appearing in a camera image, a whitish blur degree calculator that calculates a degree of whitish blur of the camera image caused by a reflection of natural light by the hood and the windshield in accordance with the luminance parameter, and a contrast corrector that corrects a contrast of the camera image in accordance with the whitish blur degree.
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Patent Agency Ranking
公开(公告)号：US20200029052A1
公开(公告)日：2020-01-23
申请号：US16513016
申请日：2019-07-16
Applicant: DENSO CORPORATION
Inventor： Toshikazu MURAO , Kazuyoshi AKIBA , Tetsuya KIMATA , Kazuhiko KOBAYASHI , Takayuki KIMURA
Abstract: To reduce complication of a configuration of a vehicle while suppressing an increase in weight of the vehicle, a camera system mounted on a vehicle includes an imaging unit to capture multiple frame images of an outside of the vehicle per cycle and an image processor to obtain the multiple frame images from the imaging unit and separate the multiple frame images into a first given number of frame images as a recognition target and a second given number of frame images as a storage target to be stored in an image recorder. The image processor separately outputs the first and second given numbers of frame images to be recognized and stored, respectively.
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公开(公告)号：US20240259694A1
公开(公告)日：2024-08-01
申请号：US18427641
申请日：2024-01-30
Applicant: DENSO CORPORATION
Inventor： Kenji NAKAMURA , Kazuhiko KOBAYASHI
CPC classification number: H04N23/73 , G06V10/60 , G06V20/582 , G06V20/584 , H04N23/61 , G06V2201/07
Abstract: An imaging control apparatus is configured to detect a first object and a second object appearing on an image captured by a camera. The first object is higher in luminance than the second object. When the second object is not detected on the image, the imaging control apparatus works to adjusts an exposure time of the camera to a first exposure time which is used when the first object is detected. Alternatively. When the second object is detected, the imaging control apparatus adjusts the exposure time of the camera to a second exposure time which is longer than the first exposure time. This eliminates a failure in identifying colors on the image and also minimizes a risk of appearance of flicker on the image.
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公开(公告)号：US20220353476A1
公开(公告)日：2022-11-03
申请号：US17811227
申请日：2022-07-07
Applicant: DENSO CORPORATION
Inventor： Toshikazu MURAO , Kazuyoshi AKIBA , Tetsuya KIMATA , Kazuhiko KOBAYASHI , Takayuki KIMURA
Abstract: To reduce complication of a configuration of a vehicle while suppressing an increase in weight of the vehicle, a camera system mounted on a vehicle includes an imaging unit to capture multiple frame images of an outside of the vehicle per cycle and an image processor to obtain the multiple frame images from the imaging unit and separate the multiple frame images into a first given number of frame images as a recognition target and a second given number of frame images as a storage target to be stored in an image recorder. The image processor separately outputs the first and second given numbers of frame images to be recognized and stored, respectively.
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公开(公告)号：US20200334488A1
公开(公告)日：2020-10-22
申请号：US16848034
申请日：2020-04-14
Applicant: DENSO CORPORATION
Inventor： Kazuhiko KOBAYASHI
Abstract: In an image processing apparatus, an image obtaining unit obtains, from a vehicular camera, an image captured by the vehicular camera based on a predetermined imaging condition. An image processing unit executes an image-processing task of the image. A histogram generation unit generates a histogram based on the luminance values of the pixels included in the road-surface region in the image. The histogram graphically represents a frequency of each of the luminance values of the pixels included in the road-surface region in the image. A histogram determination unit determines whether the histogram has first and second separate crests. A change unit changes, upon determination that the histogram has first and second separate crests, at least one of 1. The imaging condition of the vehicular camera 2. The image-processing task to be executed by the image processing unit
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公开(公告)号：US20190266423A1
公开(公告)日：2019-08-29
申请号：US16288444
申请日：2019-02-28
Applicant: DENSO CORPORATION
Inventor： Kazuyoshi AKIBA , Toshikazu MURAO , Kazuhiko KOBAYASHI
Abstract: An imaging system to be mounted in a vehicle is provided. The imaging system includes an optical wide-angle camera acquiring an image, and an object identifying apparatus. This object identifying apparatus executes a distortion correcting process with the acquired image and apply previously-prepared reference patterns to the image which has been subjected to the distortion correcting process such that objects in the acquired image are recognized.
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