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Endoscope device and method for operating endoscope device

An endoscope and motion technology, which can be applied to endoscopes, projection devices, printing devices, etc., can solve problems such as decreased contrast, inaccurate focus, and wrong actions.

Active Publication Date: 2016-09-07
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, smoke may be generated in the imaging range of the endoscope device due to various reasons, and when the smoke is generated, the contrast is lowered, AF operates incorrectly, and there is a problem of inaccurate focus.

Method used

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  • Endoscope device and method for operating endoscope device
  • Endoscope device and method for operating endoscope device
  • Endoscope device and method for operating endoscope device

Examples

Experimental program
Comparison scheme
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no. 2 Embodiment approach

[0137] 3.1. Calculation method of smoke evaluation value

[0138] Figure 14 A specific configuration example of the smoke detection unit 340 and the focus control unit 360 of the second embodiment is shown. In addition, the configuration of the endoscope apparatus is the same as that of the first embodiment.

[0139] The smoke detection unit 340 includes a smoke detection area setting unit 341 and a detection unit 342 . The focus control unit 360 includes an AF area setting unit 361 , an AF evaluation value calculation unit 362 , a focus lens control unit 363 , and a focus lens position recording unit 364 . In addition, the same code|symbol is attached|subjected to the same component as the component already demonstrated, and description is abbreviate|omitted suitably.

[0140] The AF evaluation value calculation unit 362 performs BPF (Band Pass Filter) processing on the Y signal and the color signal, and calculates an AF evaluation value based on the result. The result o...

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Abstract

An endoscope device that includes: a focus control unit (360) which performs focus control by controlling the position of a focus lens in an optical system of an imaging unit (200); and a mist detection unit (340) which detects the occurrence of mist. If the occurrence of mist is detected by the mist detection unit (340), the focus control unit (360) stops implementing a focusing operation of the focus control.

Description

technical field [0001] The present invention relates to an endoscope device, an operating method of the endoscope device, and the like. Background technique [0002] Endoscopic devices require as wide a depth of field as possible in order not to hinder the user's diagnosis / treatment. However, in recent years, the depth of field has been narrowed due to the adoption of high-pixel imaging elements in endoscope devices. Therefore, endoscope devices that perform automatic focusing (hereinafter abbreviated as AF) have been proposed. In conventional AF techniques for moving images, the following methods have been proposed to prevent useless focusing operations. [0003] For example, in Patent Document 1, the AF evaluation value of the state in which the focusing operation is completed is stored, and the focusing operation is performed again when a change in the AF evaluation value exceeding a predetermined threshold continues for a predetermined standby time or longer. Accordin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/00A61B1/04G02B7/28G02B7/36G02B23/24G03B3/00H04N5/225
CPCG02B7/36G02B23/2446G02B23/2453G02B23/2469A61B1/00188A61B1/127G03B13/36A61B1/00006A61B1/000094A61B1/000095H04N23/555H04N23/673H04N23/74G02B7/04G02B23/243G06T7/0012G06T2207/10068
Inventor 佐佐木宽
Owner OLYMPUS CORP