公开(公告)号：US11064133B2

公开(公告)日：2021-07-13

申请号：US16544008

申请日：2019-08-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ruiwen Zhen ,  John W. Glotzbach ,  Hamid R. Sheikh ,  Ibrahim Pekkucuksen ,  Zhen Tong ,  Long N. Le

IPC: H04N5/235 ,  G06T5/40 ,  G06T5/50 ,  G06T5/00

Abstract: A method includes obtaining multiple image frames of a scene using at least one sensor of an electronic device. The multiple image frames include a first image frame and a second image frame having a longer exposure than the first image frame. The method also includes generating a label map that identifies pixels in the multiple image frames that are to be used in an image. The method further includes generating the image of the scene using the pixels extracted from the image frames based on the label map. The label map may include multiple labels, and each label may be associated with at least one corresponding pixel and may include a discrete value that identifies one of the multiple image frames from which the at least one corresponding pixel is extracted.

公开(公告)号：US20210185287A1

公开(公告)日：2021-06-17

申请号：US16717971

申请日：2019-12-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ruiwen Zhen ,  John W. Glotzbach ,  Hamid Rahim Sheikh

IPC: H04N9/64 ,  H04N9/07

Abstract: A method includes receiving a reference input frame and a non-reference input frame; separating a luma plane for a luma channel and a chroma plane for a chroma channel for each of the reference input frame and the non-reference input frame; generating a luma frame using the luma plane; generating a chroma frame using the chroma plane in a patch-based chroma blending; and combining the luma frame and the chroma frame into an output frame.

公开(公告)号：US20200267300A1

公开(公告)日：2020-08-20

申请号：US16277630

申请日：2019-02-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ruiwen Zhen ,  John Glotzbach ,  Ibrahim Pekkucuksen ,  Hamid R. Sheikh

IPC: H04N5/235 ,  G06T7/20 ,  G06T7/44 ,  G06T5/40 ,  G06T5/00

Abstract: An electronic device, method, and computer readable medium for compositing high dynamic range frames are provided. The electronic device includes a camera, and a processor coupled to the camera. The processor registers the plurality of multi-exposure frames with a hybrid of matched features to align non-reference frames with a reference frame; generates blending maps of the plurality of multi-exposure frames to reduce moving ghost artifacts and identify local areas that are well-exposed in the plurality of multi-exposure frames; and blends the plurality of multi-exposure frames weighted by the blending maps using a two-step weight-constrained exposure fusion technique into a high dynamic range (HDR) frame.