Methods, systems, and media for high dynamic range imaging
AssigneeThe Trustees of Columbia University in the City of New York
InventorsMohit Gupta, Tomoo Mitsunaga, Daisuke Iso, Shree K Nayar
Life of this patent
Estimating the term…
Abstract
Systems, methods, and media for high dynamic range imaging are provided, the systems comprising: an image sensor; and a hardware processor configured to: cause the image sensor to capture first image data having a first exposure time, second image data having a second exposure time, and third image data having a third exposure time that is substantially equal to the sum of the first exposure time and the second exposure time; generate combined image data using the first image data and the second image data.
Claims28
A system for high dynamic range imaging, the system comprising:
- an image sensor;
- and
- a hardware processor configured to:
- cause the image sensor to capture first image data having a first exposure time, second image data having a second exposure time, and third image data having a third exposure time that is substantially equal to the sum of the first exposure time and the second exposure time;
- generate combined image data using the first image data and the second image data;
- determine first estimated motion data representative of motion between the combined image data and the third image data;
- determine second estimated motion data representative of motion between the second image data and the third image data based on the first estimated motion data;
- and
- generate a high dynamic range image using at least the first image data, the second image data, the third image data, and the second estimated motion data.
A method for high dynamic range imaging, the method comprising:
- causing an image sensor to capture first image data having a first exposure time, second image data having a second exposure time, and third image data having a third exposure time that is substantially equal to the sum of the first exposure time and the second exposure time;
- generating combined image data using the first image data and the second image data;
- determining first estimated motion data representative of motion between the combined image data and the third image data;
- determining second estimated motion data representative of motion between the second image data and the third image data based on the first estimated motion data;
- and
- generating a high dynamic range image using at least the first image data, the second image data, the third image data, and the second estimated motion data.
A system for high dynamic range imaging, the system comprising:
- an image sensor;
- and
- a hardware processor configured to:
- cause the image sensor to capture n frames of image data, each frame having an exposure time such that the exposure time of the nth frame is substantially equal to the sum of the exposure times of the first n−1 frames;
- generate combined image data using the first n−1 frames of image data;
- determine first estimated motion data representative of motion between the combined image data and the image data of the nth frame;
- determine second estimated motion data representative of motion between the image data of the n−1 st frame and the image data of the nth frame based on the first estimated motion data;
- and
- generate a high dynamic range image using at least the image data of the n frames of image data and the second estimated motion data.
A method for high dynamic range imaging, the method comprising:
- causing an image sensor to capture n frames of image data, each frame having an exposure time such that the exposure time of the nth frame is substantially equal to the sum of the exposure times of the first n−1 frames;
- generating combined image data using the first n−1 frames of image data;
- determining first estimated motion data representative of motion between the combined image data and the image data of the nth frame;
- determining second estimated motion data representative of motion between the image data of the n−1st frame and the image data of the nth frame based on the first estimated motion data;
- and
- generating a high dynamic range image using at least the image data of the n frames of image data and the second estimated motion data.
Dependencies are inferred from the claim text.