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公开(公告)号：US11256933B2
公开(公告)日：2022-02-22
申请号：US16574450
申请日：2019-09-18
申请人： DENSO TEN Limited
发明人： Yasutaka Okada , Hiroaki Sano , Tetsuo Yamamoto , Atsushi Yoshihara , Jun Kanetake , Ryo Yoshimura , Tomoki Shidori
摘要： An image processing device includes: a delimiting line detection unit configured to detect a delimiting line candidate based on image data obtained by capturing a surrounding of a vehicle; an exclusion determination unit configured to determine whether there is a parking-unavailable area in which parking of the vehicle is not permitted; and a parking space detection unit configured to detect the parking space based on the delimiting line candidate. In a case where plural parallel lines that are adjacent to the delimiting line candidate and that have a predetermined angle to the delimiting line candidate is detected, the exclusion determination unit regards an area in which the plural parallel lines are provided as the parking-unavailable area, and prohibits the parking space detection unit from detecting the parking space across the delimiting line candidate adjacent to the parking-unavailable area.
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公开(公告)号：US11195032B2
公开(公告)日：2021-12-07
申请号：US16574393
申请日：2019-09-18
申请人： DENSO TEN Limited
发明人： Yasutaka Okada , Hiroaki Sano , Tetsuo Yamamoto , Atsushi Yoshihara , Jun Kanetake , Ryo Yoshimura , Tomoki Shidori
摘要： An image processing device includes: a delimiting line detection unit configured to detect a delimiting line candidate based on image data obtained by capturing a surrounding of a vehicle, the delimiting line candidate being a candidate of a delimiting line that delimits a parking space; and an exclusion determination unit configured to determine whether or not to exclude the delimiting line candidate detected by the delimiting line detection unit from the candidate of the delimiting line. In a case where a plurality of the delimiting line candidates is detected within a predetermined range in the image data, the exclusion determination unit determines whether or not to exclude the delimiting line candidate from the candidate of the delimiting line by comparing edge strength of the plurality of delimiting line candidates.
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公开(公告)号：US11145041B2
公开(公告)日：2021-10-12
申请号：US16574516
申请日：2019-09-18
申请人： DENSO TEN Limited
发明人： Yasutaka Okada , Hiroaki Sano , Tetsuo Yamamoto , Atsushi Yoshihara , Jun Kanetake , Ryo Yoshimura , Tomoki Shidori
摘要： An image processing device includes: a setting unit configured to set an area, as a first area, in which at least one delimiting line for delimiting a parking space is detected in a first image of plural images continuously captured while moving; and a prediction unit configured to predict, based on the first area, a second area in which the at least one delimiting line is to be detected in at least one second image of the plural images, the at least one second image being captured later in time than the first image.
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公开(公告)号：US11138450B2
公开(公告)日：2021-10-05
申请号：US16574499
申请日：2019-09-18
申请人： DENSO TEN Limited
发明人： Yasutaka Okada , Hiroaki Sano , Tetsuo Yamamoto , Atsushi Yoshihara , Jun Kanetake , Ryo Yoshimura , Tomoki Shidori
摘要： An image processing device includes: an extraction unit configured to extract at least one edge line based on image data obtained by an imaging device configured to capture a surrounding of a vehicle; a giving unit configured to give a priority to each of the at least one edge line; a registration unit configured to register the at least one edge line in descending order of the priority while limiting a number of registration of the at least one edge line to an upper limit or smaller of the number of registration; and a detection unit configured to detect a parking space, based on the at least one edge line registered.
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公开(公告)号：US11182627B2
公开(公告)日：2021-11-23
申请号：US16574395
申请日：2019-09-18
申请人： DENSO TEN Limited
发明人： Yasutaka Okada , Hiroaki Sano , Tetsuo Yamamoto , Atsushi Yoshihara , Jun Kanetake , Ryo Yoshimura , Tomoki Shidori
摘要： An image processing device includes: a detection unit which detects partition line candidates that are candidates for a partition line for partitioning a parking frame, based on edge lines that are detected based on luminance of each pixel of image data taken by shooting a neighborhood of a vehicle; and a generation unit which generates an integrated partition line candidate by integrating the partition line candidates detected by the detection unit, according to a prescribed integration condition.
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公开(公告)号：US11373416B2
公开(公告)日：2022-06-28
申请号：US16574529
申请日：2019-09-18
申请人： DENSO TEN Limited
发明人： Yasutaka Okada , Hiroaki Sano , Tetsuo Yamamoto , Atsushi Yoshihara , Jun Kanetake , Ryo Yoshimura , Tomoki Shidori
摘要： An image processing device includes: a detection unit which detects a target object based on edge information acquired from image data; and a judging unit which judges whether a certain region in the image data is an improper region that is not suitable for detection of the target object based on an edge pattern of edge information in the certain region and a feature pattern indicating a feature of the target object, and the detection unit detects the target object excluding a region that has been judged to be the improper region by the judging unit.
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公开(公告)号：US11170235B2
公开(公告)日：2021-11-09
申请号：US16574507
申请日：2019-09-18
申请人： DENSO TEN Limited
发明人： Yasutaka Okada , Hiroaki Sano , Tetsuo Yamamoto , Atsushi Yoshihara , Jun Kanetake , Ryo Yoshimura , Tomoki Shidori
摘要： An image processing device includes: an extraction unit which extracts edge lines based on image data taken by an imaging device by shooting a neighborhood of a vehicle; a selection unit which selects, as a pair of edge lines, edge lines that satisfy a prescribed condition from the extracted edge lines; an exclusion unit which, in a case where a non-paint-out region exists between the pair of edge lines, excludes quasi-edge lines that form the non-paint-out region from the pair of edge lines; and a detection unit which detects a partition line that partitions a parking frame based on the pair of edge lines from which the quasi-edge lines are excluded.
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公开(公告)号：US11100342B2
公开(公告)日：2021-08-24
申请号：US16574422
申请日：2019-09-18
申请人： DENSO TEN Limited
发明人： Yasutaka Okada , Hiroaki Sano , Tetsuo Yamamoto , Atsushi Yoshihara , Jun Kanetake , Ryo Yoshimura , Tomoki Shidori
摘要： An image processing device includes: a calculation unit which calculates chroma values of pixels of image data taken by a shooting device based on differences between R values or G values and B values, respectively; a correction unit which corrects luminance values of pixels that satisfy a prescribed condition for being a yellow pixel using the calculated chroma values as emphasis amounts, respectively; and a detection unit which detects a line drawn on a road surface based on the corrected luminance values.
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公开(公告)号：US10796172B2
公开(公告)日：2020-10-06
申请号：US16574546
申请日：2019-09-18
申请人： DENSO TEN Limited
发明人： Yasutaka Okada , Hiroaki Sano , Tetsuo Yamamoto , Atsushi Yoshihara , Jun Kanetake , Ryo Yoshimura , Tomoki Shidori
摘要： An image processing device includes: a delimiting line detection unit that detects a delimiting line candidate based on image data obtained by capturing a surrounding of a vehicle; and an exclusion determination unit that determines whether to exclude the delimiting line candidate. When a white delimiting line candidate having higher luminance than the road surface luminance and a black delimiting line candidate having lower luminance are detected, and one of the white and black delimiting line candidates is set as at least one first delimiting line candidate, and the other thereof is set as a second delimiting line candidate while the at least one first delimiting line candidate includes a pair of first delimiting line candidates between which the second delimiting line candidate is arranged and a distance between the pair is equal to or smaller than a threshold, the second delimiting line candidate is excluded.
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公开(公告)号：US11250290B2
公开(公告)日：2022-02-15
申请号：US16574462
申请日：2019-09-18
申请人： DENSO TEN Limited
发明人： Yasutaka Okada , Hiroaki Sano , Tetsuo Yamamoto , Atsushi Yoshihara , Jun Kanetake , Ryo Yoshimura , Tomoki Shidori
摘要： An image processing device includes: an extraction unit which extracts, from image data taken by shooting a neighborhood of a vehicle, edge points that are to be used for detecting partition lines of a parking frame and whose edge intensity values are larger than an edge threshold value; and a correction unit which corrects the edge threshold value based on a density of the edge points extracted by the extraction unit.
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