Digital camera
OwnerAkihiro Yoshidainventor
Life of this patent
Estimating the term…
Abstract
A digital camera 1 comprises a first focusing system of obtaining a focusing position by sampling a contrast of object image formed on a light receiving surface with moving a focus lens along an optical axis, a second focusing system of obtaining the focusing position by measuring a distance to an object based on a triangular surveying system, and an image processing IC (9) to correct an edge component of image signal of a photographed image. When the second focusing system is used independently, the image processing IC (9) enhances the edge component by using a larger aperture gain than when the first focusing system is used independently or when the first focusing system and the second focusing system are used together.
Claims3
A digital camera comprising:
- a first focusing system of obtaining a focusing position by sampling a contrast of an object image formed on a light receiving surface with moving a focus lens along an optical axis;
- a second focusing system of obtaining the focusing position by measuring a distance to an object based on a triangular surveying system;
- and
- an aperture processing device to correct an edge component of an image signal of a photographed image obtained by photographing said object,
- wherein when said second focusing system is used independently, said aperture processing device enhances said edge component by using a larger aperture gain than when said first focusing system is used independently or when said first focusing system and said second focusing system are used together.
A digital camera comprising:
- a first focusing system of obtaining a focusing position by sampling a contrast of an object image formed on a light receiving surface with moving a focus lens along an optical axis;
- a second focusing system of obtaining the focusing position by measuring a distance to an object based on a triangular surveying system;
- and
- an aperture processing device to correct an edge component of an image signal of a photographed image obtained by photographing said object,
- wherein when said second focusing system is used independently, said aperture processing device enhances said edge component by using a larger aperture limit than when said first focusing system is used independently or when said first focusing system and said second focusing system are used together.
A digital camera comprising:
- a first focusing-system of obtaining a focusing position by sampling a contrast of an object image formed on a light receiving surface with moving a focus lens along an optical axis;
- a second focusing system of obtaining the focusing position by measuring a distance to an object based on a triangular surveying system;
- and
- a digital filter processing device to correct a high frequency component of an image signal of a photographed image obtained by photographing said object,
- wherein when said second focusing system is used independently, said digital filter processing device uses a filter coefficient having a characteristic of further enhancing said high frequency component than when said first focusing system is used independently or said first focusing system and said second focusing system are used together.
Dependencies are inferred from the claim text.