Focusing point determining method and apparatus
First Claim
Patent Images
1. A focusing point determining method, comprising:
- obtaining a view-finding image within a view-finding coverage;
identifying a significance area in the view-finding image; and
extracting at least one focusing point from the identified significance area,wherein said identifying the significance area in the view-finding image comprises;
generating a significance identifying picture based on the view-finding image, wherein in the significance identifying picture, a gray scale value of each pixel represents significance of the pixel;
binarizing the significance identifying picture to obtain a binarized significance picture; and
taking at least one connected area in the binarized significance picture as the significance area.
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Abstract
There are provided a focusing point determining method and apparatus. The focusing point determining method comprises: obtaining a view-finding image within a view-finding coverage; identifying a significance area in the view-finding image; and extracting at least one focusing point from the identified significance area. By identifying the significance area in the view-finding image and extracting at least one focusing point from the identified significance area, the focusing point determining method and apparatus can ensure accuracy of a selected focusing point to a certain extent, so as to ensure accuracy of focusing.
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Citations
18 Claims
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1. A focusing point determining method, comprising:
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obtaining a view-finding image within a view-finding coverage; identifying a significance area in the view-finding image; and extracting at least one focusing point from the identified significance area, wherein said identifying the significance area in the view-finding image comprises; generating a significance identifying picture based on the view-finding image, wherein in the significance identifying picture, a gray scale value of each pixel represents significance of the pixel; binarizing the significance identifying picture to obtain a binarized significance picture; and taking at least one connected area in the binarized significance picture as the significance area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A focusing point determining apparatus, comprising:
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an image obtaining means, configured to obtain a view-finding image within a view-finding coverage; a significance area identifying means, configured to identify a significance area in the view-finding image; and a focusing point extracting means, configured to extract at least one focusing point in the identified significance area, wherein the significance area identifying means comprises; a significance picture generating means, configured to generate a significance identifying picture based on the view-finding image, wherein in the significance identifying picture, a gray scale value of each pixel represents significance of the pixel; a binarization means, configured to binarize the significance identifying picture to obtain a binarized significance picture; and a significance area extracting means configured to take at least one connected area in the binarized significance picture as a significance area. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification