Image recognizer and image recognition method
AssigneeDenso Corporation
InventorsUkyo Tanikawa, Shunsuke Nakano, Takuya Nomura, Yasushi Suehisa
Life of this patent
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Abstract
An image recognizer is enabled to appropriately recognize a traffic signal applicable to an own vehicle. A traffic signal detector is configured to detect traffic signals based on an image of a front view of the own vehicle captured from the own vehicle. A calculator is configured to calculate a degree by which a front of the traffic signal faces the own vehicle based on the image. The traffic signal identifier is configured to identify a traffic signal applicable to the own vehicle based on the degree.
Claims5
An image recognition system for calculating a degree by which a traffic signal faces an own vehicle comprising:
- a traffic signal detector configured to detect the traffic signal based on an image of a region in front of the own vehicle captured from the own vehicle;
- a calculator configured to calculate a degree by which a front of the traffic signal faces the own vehicle, based on the image;
- and
- a traffic signal identifier configured to identify a traffic signal applicable to the own vehicle based on the degree,
- wherein
- the calculator calculates the degree by which the front of the traffic signal faces the own vehicle based on:
- measuring a first length of an illuminated portion of the traffic signal along a major axis of the illuminated portion;
- measuring a second length of the illuminated portion along a minor axis of the illuminated portion;
- determining a ratio of the second length versus the first length;
- and
- wherein
- the degree by which the front of the traffic signal faces the own vehicle increases the closer the ratio is to a ratio of 1:1.
Dependencies are inferred from the claim text.