公开(公告)号：US11509837B2

公开(公告)日：2022-11-22

申请号：US17009285

申请日：2020-09-01

Applicant: QUALCOMM Incorporated

Inventor： Weiliang Liu ,  Shizhong Liu ,  Tao Ma ,  Jianfeng Ren

IPC: H04N5/265 ,  G06T3/00 ,  H04N5/232 ,  H04N5/247

Abstract: In general, techniques are described regarding initiating a recursive blending of a plurality of frames following a camera transition. One or more processors may, subsequent to a transition from a first camera mode to a second camera mode, blend one or more pixels of a first frame with one or more pixels of a second frame to produce a first blended frame, the first frame captured via a first camera, and the second frame captured via a second camera. The one or more processors may then output the first blended frame.

公开(公告)号：US20180114296A1

公开(公告)日：2018-04-26

申请号：US15331159

申请日：2016-10-21

Applicant: QUALCOMM Incorporated

Inventor： Shang-Chih Chuang ,  Xianbiao Shu ,  Xiaoyun Jiang ,  Tao Ma ,  Chih-Chi Cheng

IPC: G06T5/00 ,  G06T5/10 ,  G06T7/00 ,  G06T11/60

CPC classification number: G06T5/002 ,  G06T5/004 ,  G06T5/10 ,  G06T7/13 ,  G06T11/60 ,  G06T2207/20021 ,  G06T2207/20192

Abstract: A method performed by an electronic device is described. The method includes obtaining an input image. The input image includes image noise. The method also includes removing the image noise from the input image to produce a noise-removed image. The method further includes avoiding enhancing the image noise by performing edge detection on the noise-removed image to produce edge information. The method additionally includes producing a processed image based on the input image and the edge information.

公开(公告)号：US20140354859A1

公开(公告)日：2014-12-04

申请号：US14025496

申请日：2013-09-12

Applicant: QUALCOMM Incorporated

Inventor： Ying X. Noyes ,  Ruben Manuel Velarde ,  Tao Ma

IPC: H04N5/235

CPC classification number: H04N5/2357

Abstract: Certain embodiments relate to banding detection and correction techniques to improve the quality of captured imagery, such as video or still images. In particular, this disclosure describes banding correction techniques that cycle between detection of rolling banding and static banding to determine the power line frequency of ambient light, for example 50 Hz or 60 Hz. The banding correction techniques may also compare different image frames to detect rolling banding. The banding correction techniques may compare row sum data of a plurality of image frames and apply a Fourier analysis to determine a periodic signal of static banding at a particular ambient light power line frequency.

Abstract translation: 某些实施例涉及条带检测和校正技术以改善所捕获图像的质量，例如视频或静止图像。 特别地，本公开描述了在检测滚动条带和静态条带之间循环的条带校正技术，以确定环境光的电力线频率，例如50Hz或60Hz。 条带校正技术还可以比较不同的图像帧以检测卷带。 条带校正技术可以比较多个图像帧的行和数据并应用傅里叶分析来确定特定环境光功率线频率处的静态条带的周期性信号。

公开(公告)号：US20210360172A1

公开(公告)日：2021-11-18

申请号：US17009285

申请日：2020-09-01

Applicant: QUALCOMM Incorporated

Inventor： Weiliang Liu ,  Shizhong Liu ,  Tao Ma ,  Jianfeng Ren

IPC: H04N5/265 ,  G06T3/00 ,  H04N5/232

Abstract: In general, techniques are described regarding initiating a recursive blending of a plurality of frames following a camera transition. One or more processors may, subsequent to a transition from a first camera mode to a second camera mode, blend one or more pixels of a first frame with one or more pixels of a second frame to produce a first blended frame, the first frame captured via a first camera, and the second frame captured via a second camera. The one or more processors may then output the first blended frame.

公开(公告)号：US11055832B2

公开(公告)日：2021-07-06

申请号：US16526760

申请日：2019-07-30

Applicant: QUALCOMM Incorporated

Inventor： Yihe Yao ,  Tao Ma ,  Yawen Chi ,  Yan-Jing Lei ,  Lei Ma

IPC: G06T5/00 ,  H04N5/235 ,  G06T5/50 ,  G06T7/11

Abstract: Methods, systems, and apparatuses are provide to perform automatic banding correction in captured images. For example, the methods receive from a plurality of sensing elements in a sensor array, first image data captured with a first exposure parameter, and second image data captured with a second exposure parameter. The methods partition first image data and second image data and determine values for each partition. The methods compute banding errors based on the determined values of the partitions for first image data and second image data. The methods also determine a banding error correction to one or more of first image data and second image data based on the banding errors. Further, the methods perform an automatic correction of the banding errors on one or more of first image data and second image based on the banding error correction.