US 11,308,578 B2Granted

Endoscope system

AssigneeFUJIFILM Corporation

InventorTatsuya Aoyama

Life of this patent

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Abstract

There is provided an endoscope system that can obtain a high-resolution endoscopic image not subjected to demosaicing processing as necessary. The endoscope system includes a light source unit that emits illumination light, an image sensor that includes a color filter having one color for each pixel among color filters having a plurality of colors and picks up an image of a subject using the illumination light, a demosaicing processing section that performs demosaicing processing on RAW images having the respective colors and corresponding to the color filters having the respective colors, and a switching section that switches whether to perform the demosaicing processing using spectral information of the illumination light.

Claims20

Dependent claims

An endoscope system comprising:

a light source that emits illumination light;
an image sensor that includes a color filter having one color for each pixel among color filters having a plurality of colors and picks up an image of a subject using the illumination light;
and
a processor configured to
perform demosaicing processing on RAW images having the respective colors and corresponding to the color filters having the respective colors, and
perform complementary processing for complementing a pixel value of a missing pixel of a specific color image, which is one of the RAW images having the respective colors and corresponding to the color filters having the respective colors, using a non-specific color image which is a RAW image different from the specific color image,
wherein the processor switches processing to be performed between the demosaicing processing and the complementary processing using spectral information of the illumination light.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/022,541Filed 16 Sep 2020 · continuation
Priority: JP JP2018-07606111 Apr 2018
Published: US 2020/0410639 A131 Dec 2020
Granted: 19 Apr 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

G06T 3/4015
Scaling of whole images or parts thereof, e.g. expanding or contracting: image demosaicing, e.g. colour filter arrays [CFA] or Bayer patterns
A61B 1/000094
Of image signals during a use of endoscope: extracting biological structures
A61B 1/043
Combined with photographic or television appliances: for fluorescence imaging
A61B 1/045
Combined with photographic or television appliances: control thereof

Family

PCT/JP2019/014684Parent of this continuation · filed 2 Apr 2019
US 2020/0410639 A1Pre-grant publication · published 31 Dec 2020
US 11,308,578 B2This patent

From the US filing history. Foreign family members aren’t listed.

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