Variable-focus 3-D capsule endoscope system based on liquid lens

A capsule endoscope and liquid lens technology, applied in endoscopes, internal radio detectors, gastroscopes, etc., can solve the problem of a large number of unclear pictures, achieve the effects of improving calculation accuracy, facilitating diagnosis, and expanding the depth of field of the system

Inactive Publication Date: 2015-09-30
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

[0006] The present invention is aimed at the problem that the depth of field of the image obtained by the current capsule endoscope is small, and the number of unclear pictures is too large. Added to the capsule endoscope optical system, while ensuring a certain resolution, it can expand the depth of field of the system, so that the system can obtain a clear image sequence of the object being photographed during the working process

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  • Variable-focus 3-D capsule endoscope system based on liquid lens
  • Variable-focus 3-D capsule endoscope system based on liquid lens
  • Variable-focus 3-D capsule endoscope system based on liquid lens

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Embodiment Construction

[0017] The system structure of the present invention is as figure 1 As shown, the system can be divided into three subsystems according to functions: an adjustable focus capsule endoscope optical subsystem 11 , an automatic focus control subsystem 12 and a three-dimensional information processing subsystem 13 . The three subsystems work together to achieve clear imaging of the object to be photographed and obtain three-dimensional information of the object to be photographed during the working process of the capsule endoscope. Besides, there should also be a power supply system 14 (generally a battery).

[0018] The adjustable-focus capsule endoscope optical subsystem 11 includes two parts: an illumination module 111 and an imaging module 112 , wherein the illumination module 111 is similar to an ordinary capsule endoscope, and can adopt LED illumination and the like. The structural schematic diagram of the imaging module 112 is shown as figure 2 As shown, it consists of a ...

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Abstract

The invention relates to a variable-focus 3-D capsule endoscope system based on a liquid lens. Design is conducted by adding the liquid variable-focus lens to a capsule endoscope optical system, focusing of the system is achieved through zooming of the liquid lens, and therefore clear images of a shot target can be obtained at any position. Sequences of the obtained clear images are processed and calculated, more accurate three-dimensional information of the shot target is obtained, and therefore the 3-D imaging or three-dimensional ranging function is achieved for the shot object, and doctors can better judge diseased parts and lesion degrees. Clearer images of human body alimentary canals can be obtained, the calculation accuracy is improved, and the three-dimensional information of the shot target is more accurately obtained. The capsule endoscope diagnosis accuracy and the work efficiency of the doctors can be effectively improved.

Description

technical field [0001] The invention relates to a medical device, in particular to a liquid lens-based adjustable focus 3-D capsule endoscope system. Background technique [0002] Capsule endoscope, also known as medical wireless endoscope, can effectively obtain images inside the human digestive tract in a non-invasive state. After the subject swallows the capsule endoscope, it will move along the human digestive tract to record the situation in the subject's entire digestive system. Doctors analyze the photos taken and stored by the capsule endoscope to determine whether there are lesions in the digestive system of the subject. Compared with gastroscopy, etc., the pain suffered is greatly reduced, and the accuracy rate is also improved. [0003] The imaging system of traditional capsule endoscopy usually adopts a fixed-focus system, so there is a mutual constraint relationship between resolution and depth of field. This is because the resolution and depth of field of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/00A61B1/05
CPCA61B1/00163A61B1/041A61B1/273A61B5/073
Inventor 张薇郭鑫速晋辉李道萍
Owner UNIV OF SHANGHAI FOR SCI & TECH
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