Imaging apparatus, control method for the same, program, and storage medium

Abstract

To provide an imaging apparatus capable of properly correcting visible light images by using non-visible light images.SOLUTION: An imaging apparatus includes a determining unit for determining an exposure amount for capturing a visible light image and a non-visible light image, an imaging unit for capturing a visible light image and a plurality of non-visible light images at the exposure amount determined by the determining unit, a synthesizing unit for synthesizing the plurality of non-visible light images to generate a synthesized non-visible light image, and a correcting unit for correcting the visible light image using the synthesized non-visible light image.SELECTED DRAWING: Figure 3

Claims

1. a determination means for determining exposure for capturing a visible light image and a non-visible light image; an imaging means for capturing a visible light image and capturing a plurality of non-visible light images using the same filter at the exposure determined by the determination means; a synthesis means for synthesizing the plurality of invisible light images to generate a synthetic invisible light image; a correction means for correcting the visible light image by using the synthetic non-visible light image; An imaging device comprising:

2. The imaging device according to claim 1 , further comprising a brightness adjustment unit that adjusts brightness of the plurality of non-visible light images.

3. 3. The imaging device according to claim 2, wherein the combining means combines the plurality of invisible light images whose brightness has been adjusted by the brightness adjusting means to generate the composite invisible light image.

4. 4. The imaging device according to claim 3, wherein the brightness adjusting means adjusts brightness of the plurality of invisible light images so that brightness of the composite invisible light image is equal to brightness of the visible light image.

5. 5. The imaging device according to claim 1, wherein the determination means determines the number of the non-visible light images to be captured so that the amount of noise in the composite non-visible light image and the amount of noise in the visible light image are approximately the same.

6. 2 . The imaging device according to claim 1 , wherein the determining unit varies the exposure of the plurality of non-visible light images when a saturation of the non-visible light images is equal to or greater than a predetermined level.

7. 7. The imaging apparatus according to claim 1, wherein the determining unit shortens an exposure time of the plurality of non-visible light images when a saturation of the non-visible light images is equal to or greater than a predetermined level.

8. 8. The imaging device according to claim 1, further comprising a region determining unit that determines a region in the visible light image to be corrected by using the synthetic non-visible light image.

9. The imaging device according to claim 8, characterized in that the area determination means determines, as the area to be corrected, an area in which the gradation of the visible light image is less than the gradation of the composite non-visible light image and in which the difference in gradation between the visible light image and the composite non-visible light image is greater than a predetermined value.

10. 9. The imaging apparatus according to claim 8, wherein the area determining means determines the area to be corrected in response to an instruction from a user.

11. 11. The imaging device according to claim 1, further comprising a recording unit that records the visible light image and at least one of the plurality of non-visible light images and the composite non-visible light image.

12. 12. The imaging device according to claim 1, wherein the non-visible light image is an infrared light image.

13. 13. The imaging apparatus according to claim 1, wherein the correction means performs enhancement processing as the processing for correcting the visible light image.

14. a determining step of determining exposure for capturing a visible light image and a non-visible light image; an imaging step of capturing a visible light image and capturing a plurality of non-visible light images using the same filter at the exposure determined in the determination step; a synthesis step of synthesizing the plurality of invisible light images to generate a synthetic invisible light image; a correction step of correcting the visible light image using the synthetic non-visible light image; 13. A method for controlling an imaging apparatus comprising:

15. A program for causing a computer to function as each of the means of the imaging apparatus according to any one of claims 1 to 13.

16. A computer-readable storage medium storing a program for causing a computer to function as each of the means of the imaging apparatus according to any one of claims 1 to 13.

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