US 2011/0032570 A1Published application

Captured image processing system and recording medium

AssigneeSharp Kabushiki Kaisha

InventorsDaisaku Imaizumi, Makoto Hayasaki, Kazuyuki Hamada

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Abstract

A captured image processing system includes: a designation information accepting section for accepting designation information indicative of a location of a designated region in a captured image; a region determination section for determining an output target region in the captured image based on the designation information; and a corrected data preparation section for (i) obtaining a mapping for converting (a) coordinates of pixels in a quadrangle-shaped region having four edge pixel groups, detected in the captured image, serving as sides of the quadrangle-shaped region, the four edge pixel groups each being in a form of a line segment to (b) coordinates of pixels in a rectangular region of a given size and having upper and lower sides of the rectangular region being substantially parallel in a horizontal direction, and (ii) preparing corrected image data with respect to image data corresponding to the output target region in the captured image data, which corrected image data has been subjected to coordinate conversion based on the mapping prepared by the mapping preparation section. This allows easy output of necessary regions included in an image captured by a portable terminal apparatus, and allows output of an image having no geometric distortion even if image capture is carried out obliquely with respect to a captured image object.

Claims17

Dependent claims

A captured image processing system including (i) a portable terminal apparatus including an image capture section and (ii) an image output apparatus, the portable terminal apparatus and the image output apparatus being communicable with each other,

said captured image processing system comprising:
a designation information accepting section for accepting entry of designation information from a user, the designation information being indicative of a location of a designation region which is a partial region of a captured image indicated by captured image data, the captured image data being obtained by carrying out image capture using the image capture section;
an output target region determination section for determining an output target region in the captured image based on the designation information, the output target region being a region to be outputted from the image output apparatus;
a mapping preparation section for obtaining a mapping to be used to convert (a) a quadrangle-shaped region having four edge pixel groups, detected in the captured image, serving as sides of the quadrangle-shaped region, the four edge pixel groups each being in a form of a line segment, to (b) a rectangular region of a given size and having upper and lower sides of the rectangular region being substantially parallel in a horizontal direction, the mapping being used for converting coordinates of each pixel within the quadrangle-shaped region to coordinates of respective pixels in the rectangular region;
a corrected-data preparation section for preparing corrected image data with respect to image data corresponding to the output target region in the captured image data, the corrected image data at least been subjected to coordinate conversion by use of the mapping prepared by the mapping preparation section;
and
an output section for outputting the corrected image data or an image indicated by the corrected image data,
the portable terminal apparatus including at least the designation information accepting section, and the image output apparatus including at least the corrected-data preparation section and the output section.

5 more elements

said captured image processing system comprising:
a designation information accepting section for accepting entry of designation information from a user, the designation information being indicative of a location of a designation region which is a quadrangle-shaped partial region of a captured image indicated by captured image data, the captured image data being obtained by carrying out image capture using the image capture section;
an output target region determination section for determining an output target region in the captured image based on the designation information, the output target region being a quadrangle-shaped region to be outputted from the image output apparatus;
a mapping preparation section for obtaining a mapping to be used to convert (a) the quadrangle-shaped output target region determined by the output target region determination section to (b) a rectangular region of a given size and having upper and lower sides of the rectangular region being substantially parallel in a horizontal direction, the mapping being used for converting coordinates of each of pixel electrodes within the output target region to coordinates of respective pixels in the rectangular region;
a corrected-data preparation section for preparing corrected image data with respect to image data corresponding to the output target region in the captured image data, the corrected image data at least been subjected to coordinate conversion by use of the mapping prepared by the mapping preparation section;
and
an output section for outputting the corrected image data or an image indicated by the corrected image data,
the portable terminal apparatus including at least the designation information accepting section, and the image output apparatus including at least the corrected-data preparation section and the output section.

5 more elements

Dependencies are inferred from the claim text.