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US 8,509,539 B2Granted
Image processing apparatus and image processing method
AssigneeFujitsu Limited
InventorsShanshan Yu, Masayoshi Shimizu
Life of this patent
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Abstract
An image processing apparatus includes a storing unit that stores dictionary data including information on a feature area that indicates an area where a feature of a subject appears; and a subject determination unit that compares, when an input image is acquired, the feature area of the dictionary data with an area of the input image corresponding to the feature area of the dictionary data, to determine whether the input image includes the subject.
Claims4
An image processing apparatus comprising:
- an analysis processing unit that extracts a frequency of appearance of a feature of a subject in each area that constitutes an input image, based on a plurality of frequency components into which the input image is converted, and classifies the areas of the input image into a plurality of feature areas according to the frequency of appearance of the feature of the subject, and creates dictionary data including information on the plurality of feature areas classified including information on a feature area that indicates an area of the input image where the frequency of appearance of the feature of the subject is higher than in other areas of the input image based on the extracted frequency of appearance;
- and
- a subject determination unit that compares, when a detection target image for the subject to be detected from is acquired, each of the feature areas of the dictionary data with an area of the detection target image corresponding to the feature area, to determine whether the detection target image includes the subject.
An image processing method performed in an image processing apparatus, comprising:
- extracting a frequency of appearance of a feature of a subject in each area that constitutes an input image, based on a plurality of frequency components into which the input image is converted;
- classifying the areas of the input image into a plurality of feature areas according to the frequency of appearance of the feature of the subject;
- creating dictionary data including information on a feature area that indicates an area of the input image where the frequency of appearance of the feature of the subject is higher than in other areas of the input image based on the extracted frequency of appearance;
- and
- comparing, when a detection target image for the subject to be detected from is acquired, each of the feature areas of the dictionary data with an area of the detection target image corresponding to the feature area, to determine whether the detection target image includes the subject.
2 more elements
Dependencies are inferred from the claim text.