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Patent Searching and Data


Title:
DEVICE, PROGRAM, AND METHOD FOR ASSISTING WITH FOCUS EVALUATION
Document Type and Number:
WIPO Patent Application WO/2015/152424
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a focus evaluation assistance device that facilitates focus evaluation even when verifying a captured image on a small, low-resolution monitor. A focus evaluation main device is provided with: an edge component generation means that is a means that generates an edge from a first image and in which the first image comprises a plurality of pixels, the edge component comprises a plurality of elements, and the value of each element of the edge component corresponds to the value of each pixel of the first image after at least a direct current component is subtracted from a space frequency component in the first image; and an image generation means that is a means that generates a second image from the edge component and in which the second image comprises a plurality of pixels and said image generation means comprises a means that determines the color of each pixel of the second image as a function of the value of each element of the edge component. In addition, the focus evaluation main device is configured so as to output an image to a display means, said image being based on a second image that is newly generated in response to the new input of a first image into the edge component generation means. The edge component generation means may be provided with a means that performs non-linear processing of the value of each element of the edge component. The value of an element of the edge component after non-linear processing is the output of a non-linear function that uses the value of the element of the edge component prior to non-linear processing as input.

Inventors:
ITO HIDETOSHI (JP)
GOSHI SEIICHI (JP)
Application Number:
PCT/JP2015/060736
Publication Date:
October 08, 2015
Filing Date:
April 06, 2015
Export Citation:
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Assignee:
LEADER ELECTRONICS (JP)
International Classes:
H04N5/232; G02B7/28; G03B3/00; G03B3/02; G03B15/00; G03B17/18; G06T1/00; H04N5/225
Foreign References:
JP2010016783A2010-01-21
JP2011029870A2011-02-10
JP2010114556A2010-05-20
JP2013074395A2013-04-22
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
Ono Shinjiro (JP)
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