公开(公告)号：US09330340B1

公开(公告)日：2016-05-03

申请号：US14704918

申请日：2015-05-05

Applicant: Google Inc.

Inventor： Stephen Joseph Diverdi ,  Sevket Derin Babacan ,  Aravind Krishnaswamy

IPC: G06K9/00 ,  G06K9/62 ,  G06T11/00 ,  G06T5/00

CPC classification number: G06T7/0002 ,  G06T2207/30168

Abstract: Implementations relate to estimating noise in images using a polynomial relationship for pixel values of image features. In some implementations, a computer-implemented method to estimate noise in an image includes determining a plurality of patches of pixels in the image. For each patch of pixels, the method determines feature pixels in the patch that are included in a particular image feature at least partially depicted in the patch. The method determines an error estimate for each patch of pixels, where each error estimate is based on an amount by which pixel values of the feature pixels in the patch of pixels are different from an estimated polynomial relationship between the feature pixels in the patch of pixels. One of the error estimates is selected as a noise level estimate for the image.

Abstract translation: 实现涉及使用图像特征的像素值的多项式关系来估计图像中的噪声。 在一些实现中，用于估计图像中的噪声的计算机实现的方法包括确定图像中的多个像素块。 对于每个像素块，该方法确定补丁中包括在补丁中至少部分描绘的特定图像特征中的特征像素。 该方法确定每个像素块的误差估计，其中每个误差估计基于像素块中的特征像素的像素值与像素块中的特征像素之间的估计多项式关系不同的量 。 选择其中一个误差估计作为图像的噪声水平估计。

公开(公告)号：US20160371867A1

公开(公告)日：2016-12-22

申请号：US15242791

申请日：2016-08-22

Applicant: Google Inc.

Inventor： Stephen Joseph Diverdi ,  Ohad Izhak Fried

IPC: G06T11/60

CPC classification number: G06T11/60 ,  G06T11/206

Abstract: Implementations generally relate to optimizing a photo album layout. In some implementations, a method includes receiving a plurality of images and determining a target arrangement. The method also includes arranging the plurality of images in an N-dimensional arrangement based on a predetermined distance function. The method also includes arranging the plurality of images in the target arrangement based on the N-dimensional arrangement.

Abstract translation: 实现通常涉及优化相册布局。 在一些实施方式中，一种方法包括接收多个图像并确定目标布置。 该方法还包括基于预定距离函数以N维布置来布置多个图像。 该方法还包括基于N维排列将目标排列中的多个图像排列。

公开(公告)号：US09251567B1

公开(公告)日：2016-02-02

申请号：US14209253

申请日：2014-03-13

Applicant: Google Inc.

Inventor： Tinglin Liu ,  Stephen Joseph Diverdi ,  Aravind Krishnaswamy

IPC: G06T5/00 ,  G06K9/00 ,  G06T7/40

CPC classification number: G06T5/00 ,  G06K9/00234 ,  G06K9/00288 ,  G06K9/4652 ,  G06T7/90 ,  G06T2207/10024 ,  G06T2207/30201 ,  H04N1/60 ,  H04N1/603 ,  H04N1/628

Abstract: Implementations generally relate to color corrections to photos. In some implementations, a method includes determining a face profile from a plurality of photos of a face. The method further includes receiving a target photo of the face. The method further includes matching the face in the target photo with the face in the plurality of photos. The method further includes performing one or more color adjustments to the face in the target photo based on the face profile.

Abstract translation: 实施通常涉及对照片的颜色校正。 在一些实现中，一种方法包括从面部的多张照片中确定脸部轮廓。 该方法还包括接收面部的目标照片。 该方法还包括将目标照片中的脸部与多张照片中的脸部相匹配。 该方法还包括基于面部轮廓对目标照片中的面部执行一个或多个颜色调整。