Multi-camera imaging systems
A plurality of multi-camera systems and methods for imaging faint objects are disclosed, which includes an array of cameras that, when taken alone, are incapable of imaging such objects. The systems and methods may include common field arrays, hybrid field arrays, and/or adaptive field arrays.
1. An imaging system comprising:
cameras configured to capture respective images;
a computing device configured to combine the images to generate a combined image; and
a timecode processor configured to provide timing data having a resolution or accuracy of about 10 milliseconds or fewer to the computing device to generate the combined image based on capture times of the images.
2. The imaging system of claim 1 , wherein the computing device is further configured to co-register the images by identifying a common target present within the images.
3. The imaging system of claim 2 , wherein the computing device is further configured to determine a respective set of spatial coordinates of the common target in the images to co-register the images.
4. The imaging system of claim 2 , wherein the computing device is further configured to align the images such that the common target occupies a same respective pixel location within the images to co-register the images.
5. The imaging system of claim 4 , wherein the computing device is further configured to compute a respective spatial transformation for the images to align the images.
6. The imaging system of claim 1 , wherein a signal-to-noise ratio of a portion of the combined image is at least √{square root over (N)} times greater than a signal-to-noise ratio of at least one of the images, N being the number of images.
7. The imaging system of claim 1 , wherein the computing device is further configured to identify a field of view region that is common among respective fields of view of the cameras to generate the combined image.
8. The imaging system of claim 7 , wherein the computing device is configured to identify the field of view region by identifying a portion of the field of view of a first camera of the cameras that corresponds to a same spatial region as a portion of the field of view of a second camera, and identifying a portion of the field of view of a third camera that corresponds to a same spatial region as at least a portion of the same spatial region of the first camera and the second camera.
9. The imaging system of claim 1 , wherein the cameras are dispersed in respective geographic areas.
10. The imaging system of claim 1 , wherein the computing device is further configured to:
detect an object in a preliminary image of one of the cameras; and
reconfigure the cameras such that the cameras capture the respective images with the object therein.
11. The imaging system of claim 1 , further comprising an array of second cameras configured to capture respective second images,
wherein the computing device is further configured to:
combine the second images to generate a second combined image; and
stitch the combined image as a first combined image together with the second combined image to generate a composite image having a wider field of view than either the first combined image or the second combined image.
12. A method of generating a combined image, the method comprising:
capturing respective images with cameras;
combining, with a computing device, the images to generate the combined image comprising respective portions of the images; and
providing timing data having a resolution of about 10 milliseconds or fewer from a timecode processor to the computing device to generate the combined image based on capture times of the images.
13. The method of claim 12 , further comprising:
capturing a preliminary image by one of the cameras;
detecting, by the computing device, an object in the preliminary image; and
reconfiguring the cameras such that the cameras capture the respective images with the object therein.
14. The method of claim 12 , further comprising:
capturing respective second images by an array of second cameras;
combining, by the computing device, the second images to generate a second combined image; and
stitching, by the computing device, the combined image as a first combined image together with the second combined image to generate a composite image having a wider field of view than either the first combined image or the second combined image.
15. The method of claim 12 , further comprising co-registering, by the computing device, the images by identifying a common target present within the images.
16. The method of claim 12 , further comprising identifying, by the computing device, a field of view region that is common among respective fields of view of the cameras to generate the combined image.
17. A non-transitory computer readable medium implemented on an imaging system, the non-transitory computer readable medium having computer code that, when executed on a processor, implements a method of generating a combined image, the method comprising:
capturing respective images with cameras;
combining, with the processor, the images to generate the combined image comprising respective portions of the images; and
providing timing data having a resolution of about 10 milliseconds or fewer from a timecode processor to the processor to generate the combined image based on capture times of the images.
18. The non-transitory computer readable medium of claim 17 , wherein the computer code, when executed by the processor, further implements the method of generating the combined image by:
capturing a preliminary image by one of the cameras;
detecting, by the processor, an object in the preliminary image; and
reconfiguring the cameras such that the cameras capture the respective images with the object therein.
19. The non-transitory computer readable medium of claim 17 , wherein the computer code, when executed by the processor, further implements the method of generating the combined image by:
capturing respective second images by an array of second cameras;
combining, by the processor, the second images to generate a second combined image; and
stitching, by the processor, the combined image as a first combined image together with the second combined image to generate a composite image having a wider field of view than either the first combined image or the second combined image.
20. The non-transitory computer readable medium of claim 17 , wherein the computer code, when executed by the processor, further implements the method of generating the combined image by co-registering, by the processor, the images by identifying a common target present within the images.