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Endoscopic device

An endoscope and filter technology, applied in the field of endoscope devices, can solve the problems of different pixel values ​​and the inability to properly reduce noise components, etc., and achieve the effect of reducing noise components

Active Publication Date: 2016-08-03
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, when performing the above-mentioned white illumination light observation method and narrow-band light observation method separately, when NR processing is performed based on the pixel value output from a pixel provided with a specific filter, the characteristics of each pixel will vary depending on the characteristics of the observation method. The pixel values ​​are different, so there is a problem that the noise component can be appropriately reduced in one observation method, but cannot be appropriately reduced in the other observation method.

Method used

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Embodiment Construction

[0031] Next, modes for implementing the present invention (hereinafter referred to as "embodiments") will be described. In the embodiment, a medical endoscope apparatus for capturing and displaying an image of the inside of a body cavity of a subject such as a patient will be described. In addition, the present invention is not limited by this embodiment. Furthermore, in the description of the drawings, the same parts will be described with the same reference numerals.

[0032] figure 1 It is a diagram showing a schematic configuration of an endoscope device according to an embodiment of the present invention. figure 2 It is a schematic diagram showing a schematic configuration of an endoscope apparatus according to an embodiment of the present invention.

[0033] figure 1 and figure 2 The illustrated endoscope device 1 includes an endoscope 2 (endoscope body) that images an observed site in the subject by inserting a distal end portion into the body cavity of the subje...

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Abstract

Provided are an endoscopic device which is capable of carrying out appropriate NR processes in both a white light imaging method and a narrow band imaging method, and a noise reduction processing method. An endoscopic device (1) comprises a noise reduction unit which selects a pixel of interest on the basis of information on filter to be used determined in accordance with light emitted from a light source unit (3) and properties of each filter that constitutes a color filter (202a), and by detecting the movement in images imaged at different times using an electrical signal outputted by the pixel of interest, reduces noise components included in the image signal.

Description

technical field [0001] The present invention relates to an endoscope device that is introduced into a living body and acquires images of the living body. Background technique [0002] Conventionally, as noise reduction processing (hereinafter referred to as "NR processing") for reducing noise components contained in image signals generated by imaging elements such as CCD (Charge Coupled Device: Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor: Complementary Metal Oxide Semiconductor), known There is a technique of detecting the amount of motion between frames based on the current frame and the previous frame corresponding to temporally adjacent image signals generated by the imaging device, and reducing the noise component of the current frame based on the amount of motion (see Patent Document 1). [0003] In addition, as another NR processing, there is known a technique of detecting the amount of motion between frames based on the pixel value of a pix...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/04A61B1/00A61B1/06G02B23/24
CPCA61B1/0638A61B1/0646A61B1/00186G06T3/4015H04N2209/046H04N2209/043G02B23/2484A61B1/05A61B1/000095H04N23/81H04N23/555H04N25/133H04N23/843H04N25/134A61B1/005A61B1/00114
Inventor 栗山直也
Owner OLYMPUS CORP
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