Imaging device, imaging method, electronic apparatus, and onboard electronic apparatus
The present disclosure relates to an imaging device, an imaging method, an electronic apparatus, and an onboard electronic apparatus for suppressing the flicker caused by light sources over a wide range of frequencies. With the present technology, multiple images are captured consecutively at uneven intervals in a single-frame period of a video before being blended. This removes the flicker efficiently. The uneven capture timing in the single-frame period is made the same for multiple frames. This makes it possible to prevent low-frequency flicker from getting higher in frequency. The present disclosure may be applied to onboard cameras, for example.
1. An imaging device comprising:
an image sensing device configured to generate an image of an object by focusing light coming therefrom; and
imaging control circuitry configured to control a capture interval between start times of capturing successive images during a single-frame period to provide unequal capture intervals between the images generated by the image sensing device in the single-frame period, wherein the images captured during the single-frame period include at least four images, with progressively increasing capture intervals between the start times of successive images of the at least four images within the single-frame period.
2. The imaging device according to claim 1 ,
wherein the imaging control circuitry is configured to gradually change the capture interval between the images generated in the single-frame period.
3. The imaging device according to claim 2 ,
wherein the imaging control circuitry is configured to gradually increase the capture interval between the images generated in the single-frame period.
4. The imaging device according to claim 2 ,
wherein the capture interval between the images corresponds to a blinking interval of a frequency band ranging from 50 to 600 Hz.
5. The imaging device according to claim 2 ,
wherein the capture interval between the images corresponds to the blinking interval of a frequency band ranging from 50 to 300 Hz.
6. The imaging device according to claim 2 ,
wherein the capture interval between the images corresponds to the blinking interval of a frequency band ranging from 50 to 120 Hz.
7. The imaging device according to claim 1 ,
wherein the imaging control circuitry is configured to provide a same pattern of the capture intervals between the images for each frame.
8. The imaging device according to claim 1 , further comprising:
image blending circuitry configured to blend the images generated by the image sensing device.
9. The imaging device according to claim 8 ,
wherein the image blending circuitry is configured to blend the images generated by the image sensing device using a predetermined weight.
10. The imaging device according to claim 9 ,
wherein the imaging control circuitry is configured to change a frame rate in accordance with light and darkness, and
the image blending circuitry is configured to blend the images generated by the image sensing device using a weight reflecting the frame rate changed by the imaging control circuitry.
11. The imaging device according to claim 10 ,
wherein the imaging control circuitry is configured to lower the frame rate in accordance with darkness, and
the image blending circuitry is configured to blend the images generated by the image sensing device using a weight reflecting the frame rate changed by the imaging control circuitry.
12. An imaging method comprising:
causing an imaging device to generate an image of an object by focusing light coming therefrom; and
causing the imaging device to control a capture interval between start times of capturing successive images during a single-frame period to provide unequal capture intervals between the images generated in the single-frame period, wherein the images captured during the single-frame period include at least four images, with progressively increasing capture intervals between the start times of successive images of the at least four images within the single-frame period.
13. An electronic apparatus comprising:
an imaging device including
an image sensing device configured to generate an image of an object by focusing light coming therefrom, and
imaging control circuitry configured to control a capture interval between start times of capturing successive images during a single-frame period to provide unequal capture intervals between the images generated by the image sensing device in the single-frame period, wherein the images captured during the single-frame period include at least four images, with progressively increasing capture intervals between the start times of successive images of the at least four images within the single-frame period.
14. An onboard electronic apparatus comprising:
an imaging device including
an image sensing device configured to generate an image of an object by focusing light coming therefrom, and
imaging control circuitry configured to control a capture interval between start times of capturing successive images during a single-frame period to provide unequal capture intervals between the images generated by the image sensing device in the single-frame period, wherein the images captured during the single-frame period include at least four images, with progressively increasing capture intervals between the start times of successive images of the at least four images within the single-frame period.