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公开(公告)号：US20230095237A1
公开(公告)日：2023-03-30
申请号：US17820203
申请日：2022-08-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Joonsoo Kim , Tien Cheng Bau , Hrishikesh Deepak Garud , Kamal Jnawali
Abstract: One embodiment provides a method comprising receiving an input video comprising low-resolution (LR) frames and corresponding super-resolution (SR) frames, and generating a motion-compensated previous SR frame based on a current LR frame of the video and a motion-compensated previous residual frame of the video. The previous SR frame aligns with a current SR frame corresponding to the current LR frame. The method further comprises, in response to determining there is a mismatch between the previous SR frame and the current SR frame, correcting in the current SR frame errors that result from motion compensation based on the motion-compensated previous SR frame. The method further comprises restoring details to the current SR frame that were lost as a result of the correcting, and suppressing flickers of the current SR frame on the frequency domain, resulting in a flicker-suppressed current SR frame for presentation on a display.
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公开(公告)号：US20230050664A1
公开(公告)日：2023-02-16
申请号：US17818681
申请日：2022-08-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kamal Jnawali , Joonsoo Kim , Chenguang Liu , Chang Su
IPC: G06T5/00
Abstract: One embodiment provides a computer-implemented method that includes providing a dynamic list structure that stores one or more detected object bounding boxes. Temporal analysis is applied that updates the dynamic list structure with object validation to reduce temporal artifacts. A two-dimensional (2D) buffer is utilized to store a luminance reduction ratio of a whole video frame. The luminance reduction ratio is applied to each pixel in the whole video frame based on the 2D buffer. One or more spatial smoothing filters are applied to the 2D buffer to reduce a likelihood of one or more spatial artifacts occurring in a luminance reduced region.
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3.发明申请公开(公告)号：US20230041888A1
公开(公告)日：2023-02-09
申请号：US17813551
申请日：2022-07-19
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kamal Jnawali , Tien Cheng Bau
Abstract: One embodiment provides a method generating a first image crop and a second image crop randomly extracted from a low-quality image and a high-quality image, respectively. The method further comprises comparing the first image crop and the second image crop using a plurality of loss functions including pixel-wise loss to calculate losses, and optimizing a model trained to estimate a realistic scale-independent blur kernel of a low-resolution (LR) blurred image by minimizing the losses.
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4.发明公开公开(公告)号：US20230360595A1
公开(公告)日：2023-11-09
申请号：US18143266
申请日：2023-05-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kamal Jnawali , Joonsoo Kim , Chenguang Liu , Chang Su
IPC: G09G3/3208 , G06V20/40 , G06T5/40 , G06T5/00
CPC classification number: G09G3/3208 , G06V20/41 , G06T5/40 , G06T5/002 , G06V2201/09 , G06T2207/10024 , G06T2207/10016 , G09G2320/046 , G09G2320/0257 , G09G2320/0233 , G09G2320/0266
Abstract: One embodiment provides a computer-implemented method that includes receiving region information from a stationary region detection process for a video. A processor performs a flat region ghosting artifact removal process that updates the region information with a flat region indicator utilizing the region information and the video. The processor further performs a region based luminance reduction process utilizing the updated region information with the flat region indicator for display ghosting artifact removal and burn-in protection.
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公开(公告)号：US20230047673A1
公开(公告)日：2023-02-16
申请号：US17818679
申请日：2022-08-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Joonsoo Kim , Kamal Jnawali , Chenguang Liu
IPC: G09G3/3208
Abstract: One embodiment provides a computer-implemented method that includes adaptively adjusting a detection time interval based on stationary region type of one or more stationary regions and a scene length in a video. The method further includes tracking pixels of the one or more stationary regions from a number of previous frames to a current frame in the video in real-time. A minimum and a maximum of max-Red-Green-Blue (MaxRGB) pixel values are extracted from each frame in a scene of the video as minimum and a maximum temporal feature maps for representing pixel variance over time. Segmentation and block matching are applied on the minimum and maximum temporal feature maps to detect the stationary region type.
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Patent Agency Ranking
公开(公告)号：US12211434B2
公开(公告)日：2025-01-28
申请号：US17818679
申请日：2022-08-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Joonsoo Kim , Kamal Jnawali , Chenguang Liu
IPC: G09G3/3208
Abstract: One embodiment provides a computer-implemented method that includes adaptively adjusting a detection time interval based on stationary region type of one or more stationary regions and a scene length in a video. The method further includes tracking pixels of the one or more stationary regions from a number of previous frames to a current frame in the video in real-time. A minimum and a maximum of max-Red-Green-Blue (MaxRGB) pixel values are extracted from each frame in a scene of the video as minimum and a maximum temporal feature maps for representing pixel variance over time. Segmentation and block matching are applied on the minimum and maximum temporal feature maps to detect the stationary region type.
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公开(公告)号：US12051364B2
公开(公告)日：2024-07-30
申请号：US18143266
申请日：2023-05-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kamal Jnawali , Joonsoo Kim , Chenguang Liu , Chang Su
IPC: G09G3/20 , G06T5/40 , G06T5/70 , G06V20/40 , G09G3/3208
CPC classification number: G09G3/3208 , G06T5/40 , G06T5/70 , G06V20/41 , G06T2207/10016 , G06T2207/10024 , G06V2201/09 , G09G2320/0233 , G09G2320/0257 , G09G2320/0266 , G09G2320/046
Abstract: One embodiment provides a computer-implemented method that includes receiving region information from a stationary region detection process for a video. A processor performs a flat region ghosting artifact removal process that updates the region information with a flat region indicator utilizing the region information and the video. The processor further performs a region based luminance reduction process utilizing the updated region information with the flat region indicator for display ghosting artifact removal and burn-in protection.
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公开(公告)号：US20250166141A1
公开(公告)日：2025-05-22
申请号：US18815753
申请日：2024-08-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tingting Zhao , Chenguang Liu , Kamal Jnawali , Chang Su
Abstract: Image retouching includes receiving, by a conditional network, conditional information including one or more color histograms for an input image. The input image has a first coloration. The conditional network generates a plurality of scalar parameters based on the one or more color histograms. From the input image, an output image is generated by a base generative network. The output image has a second coloration different from the first coloration. One or more intermediate features generated by the base generative network are modulated based on the plurality of scalar parameters to generate the output image.
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公开(公告)号：US12260526B2
公开(公告)日：2025-03-25
申请号：US17818681
申请日：2022-08-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kamal Jnawali , Joonsoo Kim , Chenguang Liu , Chang Su
Abstract: One embodiment provides a computer-implemented method that includes providing a dynamic list structure that stores one or more detected object bounding boxes. Temporal analysis is applied that updates the dynamic list structure with object validation to reduce temporal artifacts. A two-dimensional (2D) buffer is utilized to store a luminance reduction ratio of a whole video frame. The luminance reduction ratio is applied to each pixel in the whole video frame based on the 2D buffer. One or more spatial smoothing filters are applied to the 2D buffer to reduce a likelihood of one or more spatial artifacts occurring in a luminance reduced region.
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公开(公告)号：US20250029210A1
公开(公告)日：2025-01-23
申请号：US18528241
申请日：2023-12-04
Applicant: Samsung Electronics Co., Ltd.
Inventor： Joonsoo Kim , Tien C. Bau , Kamal Jnawali
IPC: G06T5/50 , G06T3/4053 , G06T5/40
Abstract: A method includes obtaining a first image and a second image, where the second image represents a super-resolution version of the first image. The method also includes generating a third image representing a higher-resolution version of the first image. The method further includes performing flicker detection based on the third image and the second image in order to identify one or more flicker regions. The method also includes performing frequency decomposition of the third image to generate first decomposed images and of the second image to generate second decomposed images. In addition, the method includes blending portions of at least some of the first and second decomposed images based on the one or more identified flicker regions to generate a flicker-suppressed image.
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