Method and system for multi-exposure hdr imaging incorporating hallucination technique
AssigneeVarjo Technologies Oy
InventorMikko Ollila
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Abstract
A method for multi-exposure high dynamic range (HDR) imaging. The method includes: receiving an input sequence of images captured by camera(s), wherein the images of the input sequence are captured using one or more exposures; applying a hallucination technique on one or more images of the input sequence, for generating a hallucinated set of images corresponding to a target exposure that lies within a target exposure (TE) range; and generating an output sequence of HDR images at a same frame rate as the input sequence, by employing a first neural network, each HDR image being generated using at least a previously-generated HDR image and one of: a corresponding image from the hallucinated set, a corresponding image from the input sequence.
Claims16
A method for multi-exposure high dynamic range (HDR) imaging, the method comprising:
- receiving an input sequence of images captured by at least one camera, wherein the images of the input sequence are captured using one or more exposures;
- applying a hallucination technique on one or more images of the input sequence, for generating a hallucinated set of images corresponding to a target exposure that lies within a target exposure range;
- and
- generating an output sequence of HDR images at a same frame rate with which the input sequence is captured, by employing a first neural network, each HDR image in the output sequence being generated using at least a previously-generated HDR image and one of:
- a corresponding image from the hallucinated set, a corresponding image from the input sequence.
A system for multi-exposure high dynamic range (HDR) imaging, wherein the system comprises:
- at least one camera;
- and
- at least one processor configured to:
- receive an input sequence of images captured by the at least one camera, wherein the images of the input sequence are captured using one or more exposures;
- apply a hallucination technique on one or more images of the input sequence, for generating a hallucinated set of images corresponding to a target exposure that lies within a target exposure range;
- and
- generate an output sequence of HDR images at a same frame rate with which the input sequence is captured, by employing a first neural network, each HDR image in the output sequence being generated using at least a previously-generated HDR image and one of:
- a corresponding image from the hallucinated set, a corresponding image from the input sequence.
Dependencies are inferred from the claim text.