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1. 发明授权

US12033305B2 Filtering device, associated system and method 有权
公开(公告)号：US12033305B2
公开(公告)日：2024-07-09
申请号：US17112341
申请日：2020-12-04
申请人： STMicroelectronics (Grenoble 2) SAS
发明人： Cedric Tubert , Jeremie Teyssier , Gregory Roffet , Stephane Drouard
IPC分类号： G06T5/70 , G06T5/20 , H04N5/21 , H04N25/60
CPC分类号： G06T5/70 , G06T5/20 , H04N5/21 , H04N25/60 , G06T2207/20012 , G06T2207/20192
摘要： In an embodiment, a method includes: receiving data signals from a plurality of pixels of an array of pixels; generating a plurality of signal-to-noise ratios by determining signal-to-noise ratios for each respective pixel of the plurality of pixels on the basis of the data signals received from the respective pixel; and filtering the data signals received from each pixel of the plurality of pixels by using an adaptive filter configured on the basis of the plurality of the signal-to-noise ratios to generate filtered data signals.

2. 发明授权

US11418737B2 Image signal processor and electronic device and electronic system including the same 有权
公开(公告)号：US11418737B2
公开(公告)日：2022-08-16
申请号：US17404198
申请日：2021-08-17
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Dong Pan Lim , Irina Kim , Young Il Seo , Jeong Guk Lee , Yun Seok Choi , Eun Doo Heo
IPC分类号： H04N5/359 , G06N3/04 , H04N5/21 , H04N5/225 , H04N5/235
摘要： An image processing device including a memory; and at least one image signal processor configured to: generate, using a first neural network, a feature value indicating whether to correct a global pixel value sensed during a unit frame interval, and generate a feature signal including the feature value; generate an image signal by merging the global pixel value with the feature signal; split a pixel value included in the image signal into a first sub-pixel value and a second sub-pixel value, split a frame feature signal included in the image signal into a first sub-feature value corresponding to the first sub-pixel value and a second sub-feature value corresponding to the second sub-pixel value, and generate a first sub-image signal including the first sub-pixel value and the first sub-feature value, and a second sub-image signal including the second sub-pixel value and the second sub-feature value; and sequentially correct the first sub-image signal and the second sub-image signal using a second neural network.

3. 发明申请

US20220172328A1 IMAGE RECONSTRUCTION 有权
公开(公告)号：US20220172328A1
公开(公告)日：2022-06-02
申请号：US17601135
申请日：2020-04-02
申请人： KING'S COLLEGE LONDON
发明人： Andrew J. Reader
IPC分类号： G06T5/00 , H04N5/21
摘要： A method of creating an image representative of a measured dataset by iteratively updating a base image includes: generating a principal dataset from the measured dataset, the principal dataset having noise at substantially the same level as the measured dataset; generating an additional dataset from the measured dataset such that the additional dataset has noise at substantially the same level as the measured dataset and is not identical to the principal dataset; processing the base image without noise compensation using the principal dataset and additional dataset to obtain a principal interim image and an additional interim image; comparing the principal and the additional interim image to determine an indication of a noise level present; and using the determined indication of noise present to select noise compensation to apply when processing the base image using the measured dataset to create a new base image representative of the measured dataset.

4. 发明申请

US20210321020A1 IMAGE AND VIDEO BANDING ASSESSMENT 有权
公开(公告)号：US20210321020A1
公开(公告)日：2021-10-14
申请号：US17225808
申请日：2021-04-08
申请人： SSIMWAVE INC.
发明人： Zhou WANG , Hojatollah YEGANEH , Ahmed BADR , Kai ZENG
IPC分类号： H04N5/21 , H04N7/015 , H04N9/64
摘要： Banding effects in an image or video are assessed. The image or each frame of a video is decomposed into luminance or color channels. Signal activity is computed at each spatial location in each channel. A significance of the signal activity at each spatial location is determined by comparing each element of the signal activity with a significance threshold. Banding pixels are detected as those pixels of the image or frame having significant signal activity at their respective spatial locations and having non-significant signal activity of at least a minimum threshold percentage of neighboring pixels to the respective spatial locations.

5. 发明授权

US11074673B2 Multi-level temporal resolution increase of video 有权
公开(公告)号：US11074673B2
公开(公告)日：2021-07-27
申请号：US16798527
申请日：2020-02-24
申请人： NUMERI LTD.
发明人： Ilan Bar-On , Oleg Kostenko
IPC分类号： H04N7/01 , G06T3/40 , H04N19/80 , H04N19/33 , H04N19/31 , H04N19/59 , H04N19/44 , H04N5/21
摘要： A method of increasing temporal resolution: a) provides an original video having a given spatial resolution; b) compresses a first frame of said original video using any image compression method; and c) repeatedly compresses a next frame of said original video using the steps of: i. providing a current video comprising the already compressed video frames, said current video having an initial spatial resolution; ii. repeatedly reducing the spatial resolution of said current video and the spatial resolution of said next frame of the original video, to produce a lowest level spatial resolution current video and a lowest level spatial resolution next frame of the original video; and iii. compressing said lowest level spatial resolution next frame of the original video to produce a lowest level compressed next frame.

6. 发明授权

US11064209B2 System and method for content adaptive clipping 有权
公开(公告)号：US11064209B2
公开(公告)日：2021-07-13
申请号：US16403953
申请日：2019-05-06
申请人： MediaTek Inc.
发明人： Chih-Ming Fu , Ching-Yeh Chen , Yu-Wen Huang
IPC分类号： H04N19/182 , H04N19/70 , H04N19/46 , H04N19/61 , H04N19/14 , H04N19/82 , H04N19/86 , H04N19/186 , H04N19/44 , H04N19/625 , H04N19/91 , H04N5/217 , H04N5/21
摘要： A system and method of content adaptive pixel intensity processing are described. The method includes receiving a predefined set of processed video data configured from the processed video data, deriving a range information associated with an original maximum value and an original minimum value for a predefined set of original video data, wherein the predefined set of processed video data is derived from the predefined set of original video data, and adaptively clipping pixel intensity of the predefined set of processed video data to a range deriving from the range information, wherein the range information is incorporated in a bitstream and represented in a form of the original maximum value and the original minimum value, prediction values associated with a reference maximum value and a reference minimum value, or a range index associated with a predefined range set.

7. 发明授权

US10951825B2 Image photographing method applied to terminal, and terminal device 有权
公开(公告)号：US10951825B2
公开(公告)日：2021-03-16
申请号：US16613027
申请日：2017-08-02
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Jieguang Huo , Jun Wu
IPC分类号： H04N5/232 , G06T3/40 , G06T5/00 , G06T5/50 , G06T7/00 , H04N5/21 , H04N9/04
摘要： A method includes obtaining a first image of a to-be-photographed object based on an input received by way of a user interface, the first image being obtained using a terminal having a lens in a first position. The method also includes detecting a moiré pattern on the first image. The method further includes automatically moving the lens from the first position to a second position on a plane perpendicular to an optical axis of the lens. The method additionally includes obtaining at least one second image of the to-be-photographed object one or more of with the lens in the second position or between the first position and the second position. The method also includes restoring a detected moiré pattern region of the first image based on the at least one second image to generate a restored image. The method further includes outputting the restored image to a display.

8. 发明授权

US10944938B2 Dual-ended metadata for judder visibility control 有权
公开(公告)号：US10944938B2
公开(公告)日：2021-03-09
申请号：US15515984
申请日：2015-09-29
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Ning Xu , James E. Crenshaw , Scott Daly , Samir N. Hulyalkar , Raymond Yeung
IPC分类号： H04N7/01 , H04N19/46 , H04N19/157 , H04N5/14 , H04N5/21
摘要： Methods and systems for controlling judder are disclosed. Judder can be introduced locally within a picture, to restore a judder feeling which is normally expected in films. Judder metadata can be generated based on the input frames. The judder metadata includes base frame rate, judder control rate and display parameters, and can be used to control judder for different applications.

9. 发明授权

US10825145B2 Image processing device, image processing method, and non-transitory computer readable medium storing image processing program 有权
公开(公告)号：US10825145B2
公开(公告)日：2020-11-03
申请号：US16162483
申请日：2018-10-17
申请人： OLYMPUS CORPORATION
发明人： Daisuke Suzuki , Eiji Furukawa
IPC分类号： G06T5/00 , G06T5/50 , H04N5/21 , H04N19/513 , G06T1/20 , G06T5/20
摘要： An image processing device includes: a frame memory that saves a cyclic image of an immediately preceding frame as a reference image; and a processor comprising hardware. The processor is configured to: decompose an input image into a plurality of resolution images; set, as a base image, an image having a lower resolution than the input image among the plurality of resolution images and that detects a motion vector between the base image and the reference image; subject the reference image to motion compensation on the basis of the motion vector to generate a motion-compensated image; combine the base image with the motion-compensated image to generate a noise-reduced base image that serves as a new cyclic image; and combine the noise-reduced base image with the resolution image or resolution images other than the base image among the plurality of resolution images.

10. 发明授权

US10713757B2 Image processing apparatus, control method thereof, and storage medium 有权
公开(公告)号：US10713757B2
公开(公告)日：2020-07-14
申请号：US16127367
申请日：2018-09-11
申请人： CANON KABUSHIKI KAISHA
发明人： Masashi Niwa , Masanao Motoyama
IPC分类号： G06T3/00 , G06T3/60 , G06T5/50 , H04N5/21 , H04N5/235 , G06T5/00 , H04N5/355 , H04N5/232 , G06T7/223
摘要： An image processing apparatus including an input unit configured to input image data of a target frame, a first processing unit configured to perform a first processing for output image data of a reference frame related to the target frame, which is stored in the memory, to change positions of pixels in the output image data, an image processing unit configured to perform image processing for the image data of the target frame input by the input unit based on the output image data of the reference frame processed by the first processing unit, and a second processing unit configured to perform a second processing, the second processing being according to the first processing, for the image data of the target frame for which image processing has been performed by the image processing unit and to store the processed image data in the memory as output image data of the target frame.

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