公开(公告)号：US20150063718A1

公开(公告)日：2015-03-05

申请号：US14254788

申请日：2014-04-16

Applicant: QUALCOMM Incorported

Inventor： William Edward MANTZEL ,  Ramin Rezaiifar ,  Piyush Sharma

IPC: G06T5/50

CPC classification number: G06T5/50 ,  G06T5/002 ,  G06T5/009 ,  G06T2207/20182 ,  G06T2207/20192 ,  G06T2207/20221

Abstract: Techniques are described for enhancing quality of a first image that is captured in a low-light environment. In one embodiment, a second image is generated by brightening a plurality of pixels in the first image based on a predefined criteria. A third image is generated using an edge-preserving noise reduction algorithm based on the second image. Further, a composite image is generated by obtaining a weighted average of the first image and the third image. The techniques described herein can be applied to an image and/or to each frame of a video that is captured in low-light environments.

Abstract translation: 描述了用于增强在低光环境中捕获的第一图像的质量的技术。 在一个实施例中，通过基于预定准则来增亮第一图像中的多个像素来生成第二图像。 使用基于第二图像的边缘保留噪声降低算法生成第三图像。 此外，通过获得第一图像和第三图像的加权平均值来生成合成图像。 本文描述的技术可以应用于在低光环境中捕获的视频的图像和/或每个帧。