公开(公告)号：US09275464B2

公开(公告)日：2016-03-01

申请号：US14341699

申请日：2014-07-25

Applicant: Qualcomm Technologies, Inc.

Inventor： Noam Levy

IPC: H04N5/228 ,  G06T7/00 ,  H04N5/14 ,  H04N5/222 ,  H04N5/232 ,  G06T5/00

CPC classification number: G06T7/0079 ,  G06T5/002 ,  G06T7/11 ,  G06T7/136 ,  G06T7/162 ,  G06T7/174 ,  G06T7/194 ,  G06T2207/10016 ,  G06T2207/10148 ,  G06T2207/20021 ,  G06T2207/20036 ,  G06T2207/20072 ,  H04N5/14 ,  H04N5/2226 ,  H04N5/23206 ,  H04N5/23212 ,  H04N5/23229 ,  H04N5/23254

Abstract: Embodiments are directed towards determining within a digital camera whether a pixel belongs to a foreground or background segment within a given image by evaluating a ratio of derivative and deviation metrics in an area around each pixel in the image, or ratios of derivative metrics across a plurality of images. For each pixel within the image, a block of pixels are examined to determine an aggregate relative derivative (ARD) in the block. The ARD is compared to a threshold value to determine whether the pixel is to be assigned in the foreground segment or the background segment. In one embodiment, a single image is used to determine the ARD and the pixel segmentation for that image. Multiple images may also be used to obtain ratios of a numerator of the ARD, useable to determine an extent of the foreground.

Abstract translation: 实施例涉及在数字照相机内确定像素是否属于给定图像内的前景或背景段，通过评估图像中每个像素附近的区域中的导数和偏差度量的比率，或多个衍生度量的比率 的图像。 对于图像中的每个像素，检查像素块以确定块中的聚集相对导数（ARD）。 将ARD与阈值进行比较，以确定是否要在前景段或背景段中分配像素。 在一个实施例中，使用单个图像来确定该图像的ARD和像素分割。 也可以使用多个图像来获得可用于确定前景范围的ARD分子的比例。

公开(公告)号：US20150016724A1

公开(公告)日：2015-01-15

申请号：US14341699

申请日：2014-07-25

Applicant: Qualcomm Technologies, Inc.

Inventor： Noam Levy

IPC: G06T7/00 ,  G06T5/00

CPC classification number: G06T7/0079 ,  G06T5/002 ,  G06T7/11 ,  G06T7/136 ,  G06T7/162 ,  G06T7/174 ,  G06T7/194 ,  G06T2207/10016 ,  G06T2207/10148 ,  G06T2207/20021 ,  G06T2207/20036 ,  G06T2207/20072 ,  H04N5/14 ,  H04N5/2226 ,  H04N5/23206 ,  H04N5/23212 ,  H04N5/23229 ,  H04N5/23254

Abstract: Embodiments are directed towards determining within a digital camera whether a pixel belongs to a foreground or background segment within a given image by evaluating a ratio of derivative and deviation metrics in an area around each pixel in the image, or ratios of derivative metrics across a plurality of images. For each pixel within the image, a block of pixels are examined to determine an aggregate relative derivative (ARD) in the block. The ARD is compared to a threshold value to determine whether the pixel is to be assigned in the foreground segment or the background segment. In one embodiment, a single image is used to determine the ARD and the pixel segmentation for that image. Multiple images may also be used to obtain ratios of a numerator of the ARD, useable to determine an extent of the foreground.

Abstract translation: 实施例涉及在数字照相机内确定像素是否属于给定图像内的前景或背景段，通过评估图像中每个像素附近的区域中的导数和偏差度量的比率，或多个衍生度量的比率 的图像。 对于图像中的每个像素，检查像素块以确定块中的聚集相对导数（ARD）。 将ARD与阈值进行比较，以确定是否要在前景段或背景段中分配像素。 在一个实施例中，使用单个图像来确定该图像的ARD和像素分割。 也可以使用多个图像来获得可用于确定前景范围的ARD分子的比例。

公开(公告)号：US09282253B2

公开(公告)日：2016-03-08

申请号：US14183082

申请日：2014-02-18

Applicant: QUALCOMM TECHNOLOGIES, INC.

Inventor： Amichay Amitay ,  Noam Levy

IPC: H04N5/232 ,  H04N1/393 ,  H04N5/349 ,  G06T3/40 ,  G06T7/20

CPC classification number: H04N5/23296 ,  G06T3/4053 ,  H04N1/3935 ,  H04N5/23232 ,  H04N5/349

Abstract: A digital camera system for super resolution image processing constructed to receive a plurality of input frames and output at least one digitally zoomed frame is provided. The digital camera system includes a motion registration module configured to generate motion information associated with the plurality of input frames, an interpolation module configured to generate a plurality of interpolated input frames based at least in part on the plurality of input frames and the motion information, a weights calculation module configured to calculate one or more weights associated with the plurality of input frames based on at least the motion information, and a weighted merging module configured to merge the plurality interpolated input frames consistent with the one or more weights to generate the at least one digitally zoomed frame.

Abstract translation: 提供了一种用于接收多个输入帧并输出至少一个数字变焦帧的用于超分辨率图像处理的数字照相机系统。 所述数字照相机系统包括：运动登记模块，被配置为生成与所述多个输入帧相关联的运动信息;内插模块，被配置为至少部分地基于所述多个输入帧和所述运动信息生成多个内插输入帧; 权重计算模块，其被配置为基于至少所述运动信息来计算与所述多个输入帧相关联的一个或多个权重;以及加权合并模块，被配置为合并与所述一个或多个权重一致的所述多个内插输入帧，以生成所述 至少一个数字缩放的帧。