公开(公告)号：US20150030258A1

公开(公告)日：2015-01-29

申请号：US14222282

申请日：2014-03-21

Applicant: QUALCOMM Incorporated

Inventor： Yunqiang Chen ,  Xiaoyun Jiang

IPC: G06T5/00

CPC classification number: G06T5/002 ,  G06T2207/20012 ,  H04N5/217 ,  H04N5/357 ,  H04N5/3572 ,  H04N5/911

Abstract: Systems and methods for reducing noise artifacts in an image are disclosed. A radial distance-based look up table may be used to calibrate a noise property change due to the vignette effect. Based on the look up table, a spatial varying noise reduction level is computed to correct the noise property distortion due to the image vignetting.

Abstract translation: 公开了用于减少图像中的噪声伪影的系统和方法。 基于径向距离的查询表可用于校准由于晕影效应引起的噪声特性变化。 基于查找表，计算空间变化噪声降低水平以校正由于图像渐晕引起的噪声特性失真。

公开(公告)号：US20160248984A1

公开(公告)日：2016-08-25

申请号：US14631588

申请日：2015-02-25

Applicant: QUALCOMM Incorporated

Inventor： Feng Li ,  Shu Fei Fan ,  Shilpi Sahu ,  Min Li ,  Yunqiang Chen ,  Xiaoyun Jiang

IPC: H04N5/232 ,  G06T5/00 ,  G06T3/40

CPC classification number: H04N5/23296 ,  G06T3/40 ,  G06T3/4007 ,  G06T5/003

Abstract: In some cases, conventional digital zoom techniques can lead to poor quality images. Disclosed are systems and methods for improving the quality of images generated by digital zoom. For example, in some embodiments, a parallel structure is utilized where an image is passed through a sharpener and a 2D directional upscaler at the same time. Upscaling operations are then performed on the sharpened image. The upscaled sharpened image is added to the output of the 2D directional upscaler to produce an enhanced image.

Abstract translation: 在某些情况下，常规的数字变焦技术可能导致质量差的图像。 公开了用于改善由数字变焦产生的图像质量的系统和方法。 例如，在一些实施例中，利用平行结构，其中图像同时通过磨刀器和2D定向升降器。 然后在锐化的图像上执行升序操作。 放大的锐化图像被添加到2D定向放大器的输出以产生增强的图像。

公开(公告)号：US20250071434A1

公开(公告)日：2025-02-27

申请号：US18455473

申请日：2023-08-24

Applicant: QUALCOMM Incorporated

Inventor： Hyung Cook Kim ,  Xiaoyun Jiang ,  Yunqiang Chen

IPC: H04N23/84 ,  G06T3/00 ,  H04N23/741

Abstract: An apparatus for image processing includes one or more processors configured to receive first image data in a first color format that includes a plurality of color planes at a reduced resolution relative to a full resolution, generate second image data in an intermediate color format based on the first image data in the first color format, the intermediate color format includes a first color plane at an increased resolution and at least one of the plurality of color planes at the reduced resolution, store, in the one or more external memories, the second image data, perform image processing based on accessing the second image data, and generate third image data based on the image processing, the third image data is in a third color format that includes the plurality of color planes at a same resolution.

公开(公告)号：US09445007B1

公开(公告)日：2016-09-13

申请号：US14631588

申请日：2015-02-25

Applicant: QUALCOMM Incorporated

Inventor： Feng Li ,  Shu Fei Fan ,  Shilpi Sahu ,  Min Li ,  Yunqiang Chen ,  Xiaoyun Jiang

IPC: H04N5/228 ,  H04N5/232 ,  G06T3/40 ,  G06T5/00

CPC classification number: H04N5/23296 ,  G06T3/40 ,  G06T3/4007 ,  G06T5/003

Abstract: In some cases, conventional digital zoom techniques can lead to poor quality images. Disclosed are systems and methods for improving the quality of images generated by digital zoom. For example, in some embodiments, a parallel structure is utilized where an image is passed through a sharpener and a 2D directional upscaler at the same time. Upscaling operations are then performed on the sharpened image. The upscaled sharpened image is added to the output of the 2D directional upscaler to produce an enhanced image.

Abstract translation: 在某些情况下，常规的数字变焦技术可能导致质量差的图像。 公开了用于改善由数字变焦产生的图像质量的系统和方法。 例如，在一些实施例中，利用平行结构，其中图像同时通过磨刀器和2D定向升降器。 然后在锐化的图像上执行升序操作。 放大的锐化图像被添加到2D定向放大器的输出以产生增强的图像。