| 发明名称 | Apparatus, a method and a computer program for image processing | ||
| 摘要 | There is provided methods, apparatuses and computer program products for image segmentation in which pixel data of an image and information of a first set of pixels of the image indicative of pixels belonging to a foreground of the image are obtained. A color model of the image is estimated. To obtain a geodesic distance map at least one geodesic distance from a pixel of the first set of pixel to another pixel of the image which is not in the first set of pixels is determined. An energy function is optimized on the basis of the geodesic distance map to obtain a segmentation of the image. | ||
| 申请公布号 | US9495755(B2) | 申请公布日期 | 2016.11.15 |
| 申请号 | US201414514861 | 申请日期 | 2014.10.15 |
| 申请人 | Nokia Technologies Oy | 发明人 | Wang Tinghuai |
| 分类号 | G06K9/00;G06T7/00 | 主分类号 | G06K9/00 |
| 代理机构 | Alston & Bird LLP | 代理人 | Alston & Bird LLP |
| 主权项 | 1. A method comprising: obtaining pixel data of an image; obtaining information of a first set of pixels of the image indicative of pixels belonging to one of a foreground of the image and a background of the image; estimating a colour model of the image; estimating a probability that a pixel of the first set of pixels belongs to one of a foreground of the image and a background of the image based on the colour model; obtaining a geodesic distance map based on determining at least one geodesic distance from the pixel of the first set of pixels to another pixel of the image which is not in the first set of pixels and the estimated probability; and optimizing an energy function on the basis of the geodesic distance map to obtain a segmentation of the image. | ||
| 地址 | Espoo FI | ||