公开(公告)号：US09516290B2

公开(公告)日：2016-12-06

申请号：US14547395

申请日：2014-11-19

Applicant: Quanta Computer Inc.

Inventor： Keng-Sheng Lin ,  Chung-Te Li ,  Cheng-Ya Sha

IPC: H04N5/235 ,  H04N5/232 ,  H04N5/355 ,  H04N9/73

CPC classification number: H04N9/735 ,  H04N5/23229 ,  H04N5/2351 ,  H04N5/2355 ,  H04N5/35554

Abstract: A white-balance method for use in a multi-exposure imaging system having an image capturing unit is provided. The method includes the steps of: utilizing the image capturing unit to simultaneously capture a first image and a second image of a scene with a first exposure value and a second exposure value, respectively, wherein the second exposure value is smaller than the first exposure value, and the first exposure value and the second exposure value have individual exposure time and exposure gain; performing light source detection on the second image to obtain light source information and a corresponding light source color ratio of the scene; and performing a color gain process on the first image according to the light source color ratio to generate an output image.

Abstract translation: 提供了一种用于具有图像捕获单元的多曝光成像系统中的白平衡方法。 该方法包括以下步骤：利用图像捕获单元分别同时捕获具有第一曝光值和第二曝光值的场景的第一图像和第二图像，其中第二曝光值小于第一曝光值 并且第一曝光值和第二曝光值具有各自的曝光时间和曝光增益; 对所述第二图像执行光源检测以获得所述场景的光源信息和对应的光源颜色比; 以及根据所述光源颜色比对所述第一图像执行色彩增益处理，以生成输出图像。

公开(公告)号：US20160105656A1

公开(公告)日：2016-04-14

申请号：US14547395

申请日：2014-11-19

Applicant: Quanta Computer Inc.

Inventor： Keng-Sheng Lin ,  Chung-Te Li ,  Cheng-Ya Sha

IPC: H04N9/73 ,  H04N5/265 ,  H04N5/232 ,  H04N5/235 ,  H04N9/77

CPC classification number: H04N9/735 ,  H04N5/23229 ,  H04N5/2351 ,  H04N5/2355 ,  H04N5/35554

Abstract: A white-balance method for use in a multi-exposure imaging system having an image capturing unit is provided. The method includes the steps of: utilizing the image capturing unit to simultaneously capture a first image and a second image of a scene with a first exposure value and a second exposure value, respectively, wherein the second exposure value is smaller than the first exposure value, and the first exposure value and the second exposure value have individual exposure time and exposure gain; performing light source detection on the second image to obtain light source information and a corresponding light source color ratio of the scene; and performing a color gain process on the first image according to the light source color ratio to generate an output image.

Abstract translation: 提供了一种用于具有图像捕获单元的多曝光成像系统中的白平衡方法。 该方法包括以下步骤：利用图像拍摄单元分别同时捕获具有第一曝光值和第二曝光值的场景的第一图像和第二图像，其中第二曝光值小于第一曝光值 并且第一曝光值和第二曝光值具有各自的曝光时间和曝光增益; 对所述第二图像执行光源检测以获得所述场景的光源信息和对应的光源颜色比; 以及根据所述光源颜色比对所述第一图像执行色彩增益处理，以生成输出图像。