Cruising zone division line recognition apparatus
AssigneeDenso Corporation
InventorsNaoki Kawasaki, Masayuki Imanishi, Shunsuke Suzuki, Tetsuya Takafuji
Life of this patent
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Abstract
A cruising zone division line recognition apparatus has an image acquisition device that acquires an image including a road surface ahead of a vehicle, and an image recognition device. The image recognition device adds blurring to an area including the road surface in the acquired image and recognizes a cruising zone division line from the image to which blurring has been added. When blurring is added, a cruising zone division line that is an intermittent double line included in a captured image can be made unclear. Therefore, the recognized cruising zone division line can be prevented from becoming a discontinuous, disjointed line.
Claims10
A cruising zone division line recognition apparatus comprising:
- an image acquisition device that acquires an image including a road surface ahead of a vehicle;
- and
- an image processing device that adds blurring to an area including the road surface in the image acquired by the image acquisition device, and recognizes a cruising zone division line from the image to which blurring has been added,
- wherein:
- the image processing device adds, to the area including the road surface, a larger degree of blurring in the area including the road surface as the area becomes closer to the vehicle and a smaller degree of blurring as the area becomes farther from the vehicle;
- and
- the image processing device sets an amount of blurring to be added for each of a predetermined road surface area near the vehicle and a road surface area that is farther than the predetermined road surface area so that a total sum of blurring is fixed at all times.
A cruising zone division line recognition method comprising:
- a step of acquiring an image including a road surface ahead of a vehicle;
- a step of adding blurring to an area including the road surface in the acquired image;
- and
- a step of recognizing a cruising zone division line from the image to which blurring has been added,
- wherein:
- the step of adding blurring adds, to the area including the road surface, a larger degree of blurring in the area including the road surface as the area becomes closer to the vehicle and adds a smaller degree of blurring as the area becomes farther from the vehicle;
- and
- the step of adding blurring sets an amount of blurring to be added for each of a predetermined road surface area near the vehicle and a road surface area that is farther than the predetermined road surface area so that a total sum of blurring is fixed at all times.
Dependencies are inferred from the claim text.