专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

EP3105738B1 METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR IMAGE-DRIVEN COST VOLUME AGGREGATION 有权
公开(公告)号：EP3105738B1
公开(公告)日：2018-08-29
申请号：EP15749667.0
申请日：2015-02-09
申请人： Nokia Technologies Oy
发明人： SMIRNOV, Sergey , GOTCHEV, Atanas
IPC分类号： G06T7/593 , H04N13/00
CPC分类号： G06T7/593 , G06T2207/10012 , G06T2207/10024 , G06T2207/10028 , H04N13/122 , H04N13/128 , H04N13/133 , H04N13/15 , H04N13/207 , H04N13/239 , H04N13/271 , H04N2013/0081
摘要： In an example embodiment, a method, apparatus and computer program product are provided. The method includes computing a cost volume associated with a reference image. Down-sampling of the cost volume and the reference image into at least one level is performed to generate at least one down-sampled cost volume and at least one down-sampled reference image, respectively. An up-sampling of the at least one down-sampled cost volume and the at least one down-sampled reference image into the at least one level is performed to generate at least one up-sampled cost volume and at least one up-sampled reference image, respectively. A color weight map associated with the cost volume and the at least one down-sampled cost volume is computed based on the reference image and the at least one down-sampled reference image at the at least one level. Aggregated cost volume is determined based at least on the color weight map.

2. 发明公开

EP3105738A1 METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR IMAGE-DRIVEN COST VOLUME AGGREGATION 有权
标题翻译： VERFAHREN，VORRICHTUNG UND COMPUTERPROGRAMMPRODUKTFÜRBILDGESTEUERTE KOSTENVOLUMENAGGREGATION
公开(公告)号：EP3105738A1
公开(公告)日：2016-12-21
申请号：EP15749667.0
申请日：2015-02-09
申请人： Nokia Technologies OY
发明人： SMIRNOV, Sergey , GOTCHEV, Atanas
IPC分类号： G06T7/00 , H04N13/00
CPC分类号： G06T7/593 , G06T2207/10012 , G06T2207/10024 , G06T2207/10028 , H04N13/122 , H04N13/128 , H04N13/133 , H04N13/15 , H04N13/207 , H04N13/239 , H04N13/271 , H04N2013/0081
摘要： In an example embodiment, a method, apparatus and computer program product are provided. The method includes computing a cost volume associated with a reference image. Down-sampling of the cost volume and the reference image into at least one level is performed to generate at least one down-sampled cost volume and at least one down-sampled reference image, respectively. An up-sampling of the at least one down-sampled cost volume and the at least one down-sampled reference image into the at least one level is performed to generate at least one up-sampled cost volume and at least one up-sampled reference image, respectively. A color weight map associated with the cost volume and the at least one down-sampled cost volume is computed based on the reference image and the at least one down-sampled reference image at the at least one level. Aggregated cost volume is determined based at least on the color weight map.
摘要翻译：一种方法包括计算与参考图像相关联的成本（相似度）体积; 然后，执行将成本量和参考图像下采样（抽取）为至少一个级别，生成至少一个下采样成本量和至少一个下采样参考图像。执行向后采样以产生至少一个后向上采样成本量和后向上采样参考图像。基于参考图像和后向上采样参考图像来计算与成本量和至少一个下采样成本体积相关联的色重映射（例如，计算参考图像和后向上采样参考图像之间的差异），参考图像是参考图像之一和至少一个下采样参考图像。确定总成本量，加权平均值基于颜色权重图。成本体积可以基于将参考图像与目标图像的多个移位版本匹配，例如，校正的场景或立体图像对的图像。可以使用绝对差（SAD）或平方差（SSD）方法的和。

3. 发明公开

EP3213512A1 METHOD FOR ALIGNMENT OF LOW-QUALITY NOISY DEPTH MAP TO THE HIGH-RESOLUTION COLOUR IMAGE 有权转让
标题翻译：将低质量噪声深度图与高分辨率彩色图像对齐的方法
公开(公告)号：EP3213512A1
公开(公告)日：2017-09-06
申请号：EP15855684.5
申请日：2015-10-23
申请人： Nokia Technologies Oy
发明人： SMIRNOV, Sergey , GEORGIEV, Mihail , GOTCHEV, Atanas
IPC分类号： H04N13/00 , G06T7/00 , G06T3/00
CPC分类号： G06T15/205 , G06T3/0031 , G06T3/0068 , G06T3/4007 , G06T5/001 , G06T5/004 , G06T5/50 , G06T7/521 , G06T7/536 , G06T7/557 , G06T7/593 , G06T7/77 , G06T2207/10024 , G06T2207/10028 , G06T2207/10052 , G06T2207/20024 , G06T2207/20221 , G06T2207/30244 , G06T2215/16 , H04N13/111 , H04N13/128 , H04N13/189 , H04N13/271 , H04N13/282 , H04N2213/003
摘要： Various embodiments are provided which relate to the field of image signal processing, specifically relating to the generation of a depth-view image of a scene from a set of input images of a scene taken at different cameras of a multi-view imaging system. A method comprises obtaining a frame of an image of a scene and a frame of a depth map regarding the frame of the image. A minimum depth and a maximum depth of the scene and a number of depth layers for the depth map are determined. Pixels of the image are projected to the depth layers to obtain projected pixels on the depth layers; and cost values for the projected pixels are determined. The cost values are filtered and a filtered cost value is selected from a layer to obtain a depth value of a pixel of an estimated depth map.
摘要翻译：一种方法，装置或程序，用于获得场景的图像帧800和对应的深度图801，确定场景的最小和最大深度，确定深度图的深度层804的数量，投影图像的像素确定投影像素的成本值828，对成本值824进行滤波，以及使用滤波后的成本值834获得像素的深度值。该实施例涉及生成高分辨率深度图像使用高分辨率彩色摄像机拍摄的场景以及相关的低分辨率飞行时间深度传感器。图像最好是彩色的。成本值可以使用深度值置信度信息来计算。其他独立权利要求不要求在计算层数之前确定最小或最大深度，而是根据估计的投影变换通过反投影来指定图像像素投影到深度层。然而，更多独立的声明指出，获得场景的两幅图像以及关于两个不同观点的信息。像素被投影并计算成本值并被过滤以从虚拟相机位置获得虚拟图像。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式