US 2026/0067591 A1 · GREEN GHOST DETECTION

Abstract

Disclosed herein are a system, method, and computer program product embodiments for detecting green ghost artifacts utilizing different classification techniques. One technique utilizes a keypoint generation-based classifier, where keypoint(s) corresponding to green ghost artifact(s) are generated in a region of an image that likely includes such artifacts. Another technique utilizes a mask image generation-based classifier, where a mask image is generated that includes confidence level(s) for pixel(s) that indicate a likelihood that such pixel(s) include such artifacts. A further technique utilizes a temporal filtering-based classifier, where a patch distance between a patch of pixels of the image and a patch of pixels of a corresponding history image is determined. The patch distance indicates a likelihood that such artifacts are present in the image. The output of such classifiers are utilized collectively to determine whether such artifacts are present in the image.

Claims20

Dependent claims

A method, comprising:

identifying a region of an image related to a light source in the image, wherein the image is captured by an image sensor;
determining a keypoint in the region of the image based on a size of the light source;
generating a probable artifact indicator that indicates a likelihood that the keypoint corresponds to an artifact in the image based on a brightness level of the determined keypoint;
and
providing the probable artifact indicator to an artifact mitigation engine.

2 more elements

A system, comprising:

a memory;
and
at least one processor configured to:
identify a region of an image related to a light source in the image, wherein the image is captured by an image sensor;
determine a keypoint in the region of the image based on a size of the light source;
generate a probable artifact indicator that indicates a likelihood that the keypoint corresponds to an artifact in the image based on a brightness level of the determined keypoint;
and
provide the probable artifact indicator to an artifact mitigation engine.

5 more elements

A non-transitory computer readable medium having instructions stored thereon that, when executed by at least one processor, cause the at least one processor to perform operations comprising:

identifying a region of an image related to a light source in the image, wherein the image is captured by an image sensor;
determining a keypoint in the region of the image based on a size of the light source;
generating a probable artifact indicator that indicates a likelihood that the keypoint corresponds to an artifact in the image based on a brightness level of the determined keypoint;
and
providing the probable artifact indicator to an artifact mitigation engine.

2 more elements

Dependencies are inferred from the claim text.

Green ghost detection

Life of this patent

Green ghost detection

Life of this patent

Abstract

Claims20