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US 8,942,484 B2Granted
Text detection using image regions
AssigneeQUALCOMM Incorporated
InventorsHyung-Il Koo, Kisun You
Life of this patent
Estimating the term…
Abstract
A method includes receiving an indication of a set of image regions identified in image data. The method further includes, selecting image regions from the set of image regions for text extraction at least partially based on image region stability.
Claims20
A computer-implemented method comprising:
- receiving an indication of a set of image regions identified in image data;
- determining one or more stability measures for the set of image regions, wherein at least one stability measure of the one or more stability measures corresponds to an amount of change of a size of a corresponding image region of the set of image regions, and wherein the change of the size is responsive to a change in a threshold value;
- and
- selecting one or more image regions from the set of image regions for text extraction at least partially based on the one or more stability measures.
1 more element
An apparatus comprising:
- an image region extractor configured to generate an indication of a set of image regions identified in image data;
- and
- a text image region selector configured to select one or more image regions from the set of image regions for text extraction, wherein the text image region selector is configured to determine one or more stability measures for the set of image regions, wherein at least one stability measure of the one or more stability measures corresponds to an amount of change of a size of a corresponding image region of the set of image regions, wherein the change of the size is responsive to a change in a threshold value, and wherein the text image region selector is configured to select the one or more image regions at least partially based on the one or more stability measures.
An apparatus comprising:
- means for identifying a set of image regions in image data;
- and
- means for selecting one or more image regions from the set of image regions for text extraction, wherein the means for selecting includes means for determining one or more stability measures for the set of image regions, wherein at least one stability measure of the one or more stability measures corresponds to an amount of change of a size of a corresponding image region of the set of image regions, wherein the change of the size is responsive to a change in a threshold value, and wherein the means for selecting is configured to select the one or more image regions at least partially based on the one or more stability measures.
A non-transitory computer readable storage medium storing program instructions that are executable by a processor, the program instructions comprising:
- code for receiving an indication of a set of image regions identified in image data;
- and
- code for selecting one or more image regions from the set of image regions for text extraction, wherein the code for selecting one or more image regions includes code for determining one or more stability measures for the set of image regions, wherein at least one stability measure of the one or more stability measures corresponds to an amount of change of a size of a corresponding image region of the set of image regions wherein the change of the size is responsive to a change in a threshold value, and wherein the one or more regions are selected at least partially based on the one or more stability measures.
Dependencies are inferred from the claim text.