Flicker mitigation via image signal processing
AssigneeSamsung Electronics Co., Ltd.
InventorsRaz Zvi Nossek, Assaf Tzabari, Doron Sabo
Life of this patent
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Abstract
Disclosed is an image processing method employing a post processing technique that may eliminate flicker artifacts from captured video in real time. An example method involves receiving from an image sensor a sequence of input frames representing a scene and identifying and tracking a light source represented within the input frames. Flickering of the light source may be identified by detecting frame to frame color characteristic variation of a region representing the light source. A sequence of output frames may be generated with the flickering removed by selectively modifying image data of pixels within the region.
Claims15
An image processing method comprising:
- receiving from an image sensor a sequence of input frames representing a scene;
- identifying a light source represented within the input frames, and tracking the identified light source between consecutive input frames;
- identifying flickering of the light source by detecting frame to frame color characteristic variation of a region representing the light source;
- and
- generating a sequence of output frames corresponding to the input frames, with the flickering removed by selectively modifying image data of pixels within the region.
An apparatus comprising:
- a camera including:
- an image sensor configured to capture images of a scene and provide input frames representing the same;
- an image signal processor configured to execute instructions to:
- receive from the image sensor a sequence of the input frames;
- identify a light source represented within the input frames, and track the identified light source between consecutive input frames;
- identify flickering of the light source by detecting frame to frame color characteristic variation of a region representing the light source;
- and
- generate a sequence of output frames corresponding to the input frames, with the flickering removed by selectively modifying image data of pixels within the region.
Dependencies are inferred from the claim text.