US 2016/0110876 A1 · MATTING METHOD FOR EXTRACTING FOREGROUND OBJECT AND APPARATUS FOR PERFORMING THE MATTING METHOD

Abstract

A matting method and apparatus for extracting a foreground object are disclosed. The matting method includes extracting one or more pixels from an input image and a trimap; calculating a first processing cost by extracting one or more nonlocal neighboring pixels; calculating a second processing cost by extracting one or more local neighboring pixels; and performing matting on the input image by estimating an opacity value for each of the extracted pixels based on the first and second processing costs. Accordingly, it is possible to perform high-quality image matting, and thus increase a performance in extracting a to foreground object from the input image, so that the matting method and apparatus can be applied to multiple-purpose image editing software.

Claims16

Dependent claims

A matting method for extracting a foreground object, which is performed by an information processing apparatus capable of digital signal processing, the matting method comprising:

extracting one or more pixels from a received input image and a received trimap of the input image;
calculating a first processing cost by extracting one or more nonlocal neighboring pixels for each of the extracted pixels which establish nonlocal relationships with each of the extracted pixels;
calculating a second processing cost by extracting, for each of the extracted pixels, one or more local neighboring pixels which are included within a predefined range for extraction and establish local relationships with each of the extracted pixels;
and
performing matting on the input image by estimating an opacity value of each of the extracted pixels based on both the first processing cost and the second processing cost.

2 more elements

A matting apparatus for extracting a foreground object, which is implemented in an information processing apparatus capable of digital signal processing, the matting apparatus comprising:

a pixel extractor configured to extract one or more pixels from a received input image and a received trimap of the input image;
a nonlocal processor configured to calculate a first processing cost by extracting one or more nonlocal neighboring pixels for each of the extracted pixels which establish nonlocal relationships with each of the extracted pixels;
a local processor configured to calculate a second processing cost by extracting, for each of the extracted pixels, one or more local neighboring pixels which are included within a predefined range for extraction and establish local relationships with each of the extracted pixels;
and
a matting module configured to perform matting on the input image by estimating an opacity value of each of the extracted pixels based on both the first processing cost and the second processing cost.

2 more elements

Dependencies are inferred from the claim text.

Matting method for extracting foreground object and apparatus for performing the matting method

Life of this patent

Matting method for extracting foreground object and apparatus for performing the matting method

Life of this patent

Abstract

Claims16