Image correction device, image generation device, camera system, and vehicle

1. An image correction apparatus, comprising:

an image data acquirer that acquires image data obtained by a camera; and

a corrector that corrects the image data based on a first difference that is a difference between a first image height obtained by light having entered the camera at a first incident angle and a first reference image height obtained by light having entered the camera at the first incident angle in a case where the camera is free of manufacturing error.

2. The image correction apparatus according to claim 1 , wherein

the corrector corrects the image data based on the first difference for each of a plurality of azimuth angles.

3. The image correction apparatus according to claim 1 , wherein

the corrector corrects the image data based on a second difference and the first difference, the second difference being a difference between a second image height obtained by light having entered the camera at a second incident angle and a second reference image height obtained by light having entered the camera at the second incident angle in a case where the camera is free of manufacturing error.

4. The image correction apparatus according to claim 1 , wherein

the corrector determined a difference to be used in correcting the image data based on a plurality of the first differences and a temperature of the camera, and corrects the image data based on the determined difference, the plurality of first differences being in association with a plurality of temperatures, respectively.

5. An image generation apparatus, comprising:

an image data acquirer that acquires image data obtained by a camera;

a corrector that corrects the image data based on a first difference that is a difference between a first image height obtained by light having entered the camera at a first incident angle and a first reference image height obtained by light having entered the camera at the first incident angle in a case where the camera is free of manufacturing error;

a distortion eliminator that eliminates distortion from a corrected image that is an image generated from the image data corrected by the corrector; and

an image combiner that generates a combined image by combining a first distortion-eliminated image and a second distortion-eliminated image, the first distortion-eliminated image being generated by the distortion eliminator based on first image data obtained by a first camera that is one of a plurality of the cameras, the second distortion-eliminated image being generated by the distortion eliminator based on second image data obtained by a second camera that is another one of the plurality of cameras.

6. The image generation apparatus according to claim 5 , wherein

the corrector corrects the image data based on the first difference for each of a plurality of azimuth angles.

7. The image generation apparatus according to claim 5 , wherein

the corrector corrects the image data based on a second difference and the first difference, the second difference being a difference between a second image height obtained by light having entered the camera at a second incident angle and a second reference image height obtained by light having entered the camera at the second incident angle in a case where the camera is free of manufacturing error.

8. The image generation apparatus according to claim 5 , wherein

the corrector determined a difference to be used in correcting the image data based on a plurality of the first differences and a temperature of the camera, and corrects the image data based on the determined difference, the plurality of first differences being in association with a plurality of temperatures, respectively.

9. A camera system, comprising:

the first camera;

the second camera; and

the image generation apparatus according to claim 5 .

10. The camera system according to claim 9 , further comprising a monitor that displays the combined image.

11. A vehicle, comprising the camera system according to claim 9 .