Unlock instant, AI-driven research and patent intelligence for your innovation.

Imaging device

一种摄像装置、图像的技术，应用在图像通信、医药科学、手术等方向，能够解决画质的提高、不充分等问题

Active Publication Date: 2011-11-16
OLYMPUS CORP
View PDF9 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, in the second conventional example, although an image with an enlarged dynamic range can be generated, the improvement in image quality is not sufficient for imaging of darker image parts (considering the amount of illumination light)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Imaging device
  • Imaging device
  • Imaging device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0049] Figure 1 to Figure 9 Regarding the first embodiment of the present invention, figure 1 The overall configuration of an endoscope device for imaging narrowband light as a first embodiment of the imaging device of the present invention is shown, figure 2 shows the schematic configuration of the rotary filter section including the light source section, Figure 3A Indicates the transmission characteristics of the narrowband filter placed on the rotating filter, Figure 3B represents the amount of emitted light, Figure 4 It shows the main part of the image generation unit which generates an endoscopic image under the control of the control unit.

[0050] Figure 5 Indicates the composition of the image processing circuit, Image 6 Showing an example of the local area set for finding the normalized cross-correlation, Figure 7 Indicates the operation content of each part of the image processing circuit, Figure 8 Indicates the operation content of brightness adjustm...

no. 2 Embodiment approach

[0171] Then refer to Figure 13 A second embodiment of the present invention will be described. Figure 13 The configuration of an endoscope apparatus 1C according to the second embodiment of the present invention is shown. The endoscope apparatus 1A of the first embodiment is an endoscope apparatus for narrowband observation that performs endoscopic observation using narrowband illumination light.

[0172] On the other hand, the endoscope device 1C of the present embodiment can select between the normal observation mode for performing endoscopic observation under broadband illumination light and the narrow-band observation mode described in the first embodiment ( Hereinafter, it is referred to as an endoscope device in NBI observation mode).

[0173] Therefore, the endoscope device 1C of the present embodiment is configured to include: an endoscope 2C; R, G, and B illumination lights that generate illumination light in the visible region of a broadband; , B1, B2 illuminati...

no. 3 Embodiment approach

[0205] Then refer to Figure 16 A third embodiment of the present invention will be described. Figure 16 The configuration of an endoscope apparatus 1D according to the third embodiment of the present invention is shown. The endoscope apparatus 1A of the first embodiment is an endoscope apparatus for narrowband observation that performs endoscopic observation using narrowband illumination light.

[0206] In contrast, the endoscope device 1D of the present embodiment is an endoscope device for fluorescence observation that performs fluorescence observation.

[0207] This endoscope device 1D has an endoscope 2D for fluoroscopy, a light source unit 3D that generates excitation light for fluoroscopy and illumination light for obtaining a reflected light image, and a processor that performs signal processing for fluoroscopy. 4D, Monitor 5.

[0208] In the endoscope 2D, the excitation light cut filter 61 is arranged in front of the CCD 11 in the endoscope A of the first embodime...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Disclosed is an imaging device which finds a correlation value by means of a determination circuit (32) using the local region set between both captured images of imaging signals (B1, B2) relative to the imaging signals (B1, B2) each captured by the return light when the light of the same wavelength in a narrow band has been irradiated twice to the same site of a subject, and, when the maximum value of the correlation value has such a high a correlation as to exceed a threshold value, finds the amount of pixel shift when the maximum value is achieved. An addition circuit (43) shifts either one of both the imaging signals (B1, B2) by the amount of the pixel shift, and performs the positional alignment addition, wherein the aligned and added image is outputted as an image signal (B) via a switching circuit (45) as a composite image, and an image with high image quality can be generated even when the amount of light is insufficient.

Description

technical field [0001] The present invention relates to an imaging device that irradiates a target site with light multiple times, and generates a composite image from the captured image of the returned light. Background technique [0002] In recent years, endoscopes that irradiate an observation or imaging target site with illumination light from an illumination window provided at the tip of the insertion portion and capture images with an imaging element provided on the observation window have been widely used. [0003] In an imaging device such as an endoscope device using such an endoscope, the light source unit is provided with a light quantity adjustment unit such as a diaphragm to adjust the illumination light quantity of the illumination light so that the imaging target site in the subject can be imaged in a bright state. Take a video. [0004] However, when imaging a remote part of the body cavity or when it is desired to obtain an image that is easy to observe usi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/00A61B1/04H04N5/225
CPCA61B1/00059A61B1/0005A61B1/042A61B1/045H04N5/2355H04N2005/2255H04N5/2256H04N23/555H04N23/56H04N23/741
Inventor 山崎健二
Owner OLYMPUS CORP