Autofocus control device, endoscope apparatus, and operation method of autofocus control device
AssigneeOlympus Corporation
InventorNaoya Kuriyama
Life of this patent
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Abstract
An autofocus control device includes a processor. The processor performs an image acquisition process of acquiring an object image captured by an imaging section, a treatment determination process of determining whether or not treatment is being performed based on the object image, a focus evaluation area setting process of setting either a preset area or a treatment area set based on the object image, as a focus evaluation area in the object image based on a determination result of the treatment determination process, and a focus control process of performing focus control of the imaging section based on a focus evaluation value of the focus evaluation area.
Claims17
An autofocus control device comprising:
- a processor configured to implement:
- an image acquisition process of acquiring an object image captured by an imaging section;
- and
- a treatment determination process of determining whether or not treatment is being performed based on the object image,
- wherein if it is determined that the treatment is not being performed, the processor is configured to implement:
- a focus evaluation area setting process of setting a preset area as a focus evaluation area;
- and
- a focus control process of calculating a focus evaluation value from the preset area of the object image and performing focus control of the imaging section based on the focus evaluation value calculated from the preset area of the object image, and
- wherein if it is determined that the treatment is being performed, the processor is configured to implement:
- the focus evaluation area setting process of detecting a treatment area where the treatment is being performed on an object based on the object image and setting the treatment area thus detected as the focus evaluation area;
- and
- the focus control process of calculating the focus evaluation value from the treatment area of the object image and performing the focus control of the imaging section based on the focus evaluation value calculated from the treatment area of the object image.
An operation method of an autofocus control device, the operation method comprising:
- acquiring an object image captured by an imaging section;
- determining whether or not treatment is being performed based on the object image captured by the imaging section;
- if it is determined that the treatment is not being performed:
- setting a preset area as a focus evaluation area;
- and
- calculating a focus evaluation value from the preset area of the object image and performing focus control of the imaging section based on the focus evaluation value calculated from the preset area of the object image;
- and
- if it is determined that the treatment is being performed:
- detecting a treatment area where the treatment is being performed on an object based on the object image and setting the treatment area thus detected as the focus evaluation area;
- and
- calculating the focus evaluation value from the treatment area of the object image and performing the focus control of the imaging section based on the focus evaluation value calculated from the treatment area of the object image.
Dependencies are inferred from the claim text.