Focus control device, endoscope device, and control method for focus control device

Abstract

The focus control device includes: an area setting unit (2010) for setting a plurality of areas composed of a plurality of pixels for a captured image captured by an imaging unit (200); and a subject distance information calculation unit (2040) for In each of the plurality of areas that are set, distance information to the subject captured in the area is obtained; and a focus control unit (2095) that classifies the plurality of areas into A classification process of a plurality of groups is performed, and focus control is performed based on the area information of each of the plurality of groups.

Description

technical field [0001] The present invention relates to a focus control device, an endoscope device, a control method of the focus control device, and the like. Background technique [0002] In an endoscope system, a depth of field as deep as possible is required so as not to hinder a user's diagnosis and treatment. However, in recent years, even in endoscope systems, the depth of field has been becoming shallower due to the use of high-pixel imaging elements, so endoscope systems that perform automatic focusing (hereinafter referred to as AF) have been proposed. [0003] In endoscopic surgery, in order to perform treatment such as excision or suture of a lesion, a treatment instrument such as an electric knife or forceps may enter between a living body as a focus target and an endoscope system as an imaging device. In this case, a treatment tool with a higher contrast than that of the living body may be in focus, but the living body may not be in focus. [0004] Patent Do...

AI Technical Summary

Problems solved by technology

In this case, the treatment equipment with higher contrast than the living body may be in focus, but the living body may not be in focus.

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