Method and system for detecting edges within an image
AssigneeSony Corporation
InventorsFrank Moesle, Paul Springer
Life of this patent
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Abstract
The present invention relates to a method for detecting edges within an image. An edge strength indicator for each pixel within the image is determined and the edge strength indicator is classified into at least three classes to generate a map having one value associated to each class. The classified map is then separated into individual maps depending on the classification. A dilation process is applied to at least a part of the individual maps. The processed and/or individual maps are finally combined by logical operation to obtain a final map indicating edges without nearby texture. The present invention further relates to a system for detecting edges.
Claims16
Method for detecting edges within an image,
- comprising the steps of
- determining an edge strength indicator for each pixel within the image,
- classifying the edge strength indicator into at least three classes to generate a map having one value associated to each class,
- separating the classified map into individual maps depending on the classification,
- applying a dilation process to at least a part of the individual maps and combining the processed and/or individual maps by logical operation to obtain a final map indicating edges without nearby texture.
A computer program product stored on a computer readable non-transitory medium which causes a computer to perform the steps of
- determining an edge strength indicator for each pixel within the image,
- classifying the edge strength indicator into at least three classes to generate a map having one value associated to each class,
- separating the classified map into individual maps depending on the classification,
- applying a dilation process to at least a part of the individual maps and combining the processed and/or individual maps by logical operation to obtain a final map indicating edges without nearby texture.
System for detecting edges within an image, comprising
- a detection unit that determines an edge strength indicator for each pixel within the image and that classifies the edge strength indicator into at least three classes to generate a map having one value associated to each class,
- a separation unit that separates the classified map into individual maps depending on the classification,
- at least one dilation unit that applies a dilation process to at least a part of the individual maps, and
- a combination unit that combines the processed and/or individual maps by logical operation to obtain a final map indicating edges without nearby texture.
System for detecting edges within an image
- comprising
- means for determining an edge strength indicator for each pixel within the image,
- means for classifying the edge strength indicator into at least three classes to generate a map having one value associated to each class,
- means for separating the classified map into individual maps depending on the classification,
- means for applying a dilation process to at least a part of the individual maps and means for combining the processed and/or individual maps by logical operation to obtain a final map indicating edges without nearby texture.
Dependencies are inferred from the claim text.