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公开(公告)号：US11694451B2
公开(公告)日：2023-07-04
申请号：US16879887
申请日：2020-05-21
发明人： Toshikazu Taki , Tsubasa Kusaka
IPC分类号： G06K9/00 , G06V20/62 , G06F18/22 , G06V30/168 , G06V30/10
CPC分类号： G06V20/62 , G06F18/22 , G06V30/168 , G06V30/10 , G06V2201/02
摘要： According to an embodiment, a reading system includes a reader and a calculator. The reader reads, from a character image, a character that is displayed by a segment display. The calculator performs one of first, second, third, or fourth processing. In the first processing, the calculator calculates a first score based on a state of pixels of the character. In the second processing, the calculator calculates a second score based on a match ratio between the pixels and the extracted pixels. In the third processing, the calculator calculates a third score based on a ratio of a length of the character image in first and second direction. In the fourth processing, the calculator calculates a fourth score based on a comparison result between the detected result and preset patterns. The calculator calculates a certainty of the reading by using one of the first, second, third, or fourth score.
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公开(公告)号：US11915498B2
公开(公告)日：2024-02-27
申请号：US17688063
申请日：2022-03-07
发明人： Toshikazu Taki
CPC分类号： G06V20/62 , G06T7/49 , G06V10/28 , G06V10/454 , G06V10/457 , G06V10/751 , G06V10/82 , G06V2201/02
摘要： According to one embodiment, a reading system includes an extractor, a determiner, and a reader. The extractor extracts a candidate image from an input image. The candidate image is of a portion of the input image in which a segment display is imaged. The determiner calculates an angle with respect to a reference line of each of a plurality of straight lines detected from the candidate image, and determines whether or not the candidate image is an image of a segment display based on a distribution indicating a relationship between the angle and a number of the straight lines. The reader reads a numerical value displayed in a segment display from the candidate image determined to be an image of a segment display.
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公开(公告)号：US11455787B2
公开(公告)日：2022-09-27
申请号：US16925390
申请日：2020-07-10
发明人： Toshikazu Taki
摘要： According to one embodiment, a reading system includes an extractor, a determiner, and a reader. The extractor extracts a candidate image from an input image. The candidate image is a candidate of a portion of the input image in which a segment display is imaged. The determiner uses the candidate image and a mask to calculate a match ratio indicating a certainty of a segment display being included in the candidate image, and determines that the candidate image is an image of a segment display when the match ratio is not less than a threshold. The mask and the threshold are preset. The reader reads a numerical value displayed in a segment display from the candidate image determined to be an image of a segment display.
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公开(公告)号：US11301709B2
公开(公告)日：2022-04-12
申请号：US16922097
申请日：2020-07-07
发明人： Toshikazu Taki
摘要： According to one embodiment, a reading system includes an extractor, a determiner, and a reader. The extractor extracts a candidate image from an input image. The candidate image is of a portion of the input image in which a segment display is imaged. The determiner calculates an angle with respect to a reference line of each of a plurality of straight lines detected from the candidate image, and determines whether or not the candidate image is an image of a segment display based on a distribution indicating a relationship between the angle and a number of the straight lines. The reader reads a numerical value displayed in a segment display from the candidate image determined to be an image of a segment display.
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公开(公告)号：US12073635B2
公开(公告)日：2024-08-27
申请号：US18321104
申请日：2023-05-22
发明人： Toshikazu Taki , Tsubasa Kusaka
IPC分类号： G06K9/00 , G06F18/22 , G06V20/62 , G06V30/168 , G06V30/10
CPC分类号： G06V20/62 , G06F18/22 , G06V30/168 , G06V30/10 , G06V2201/02
摘要： According to an embodiment, a reading system includes a reader and a calculator. The reader reads, from a character image, a character that is displayed by a segment display. The calculator performs one of first, second, third, or fourth processing. In the first processing, the calculator calculates a first score based on a state of pixels of the character. In the second processing, the calculator calculates a second score based on a match ratio between the pixels and the extracted pixels. In the third processing, the calculator calculates a third score based on a ratio of a length of the character image in first and second direction. In the fourth processing, the calculator calculates a fourth score based on a comparison result between the detected result and preset patterns. The calculator calculates a certainty of the reading by using one of the first, second, third, or fourth score.
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公开(公告)号：US11900664B2
公开(公告)日：2024-02-13
申请号：US17893351
申请日：2022-08-23
发明人： Toshikazu Taki
IPC分类号： G06T7/00 , G06V10/82 , G06T7/10 , G06N3/08 , G06T5/00 , G06F18/214 , G06V30/146 , G06V30/18 , G06V30/19 , G06V30/10
CPC分类号： G06V10/82 , G06F18/214 , G06N3/08 , G06T5/003 , G06T7/10 , G06V30/147 , G06V30/18019 , G06V30/19173 , G06V30/10
摘要： According to one embodiment, a reading system includes an extractor, a determiner, and a reader. The extractor extracts a candidate image from an input image. The candidate image is a candidate of a portion of the input image in which a segment display is imaged. The determiner uses the candidate image and a mask to calculate a match ratio indicating a certainty of a segment display being included in the candidate image, and determines that the candidate image is an image of a segment display when the match ratio is not less than a threshold. The mask and the threshold are preset. The reader reads a numerical value displayed in a segment display from the candidate image determined to be an image of a segment display.
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