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A method and system for three-dimensional reconstruction of capsule endoscopic images

A capsule endoscopy and three-dimensional reconstruction technology, applied in the field of image processing and endoscopy, can solve the problem of high hardware requirements, achieve real-time three-dimensional reconstruction, improve accuracy, and simple structure.

Active Publication Date: 2021-10-22
重庆金山医疗技术研究院有限公司
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Problems solved by technology

Deep learning has relatively high hardware requirements for training data collection, so there is still much room for improvement for real-time 3D reconstruction

Method used

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  • A method and system for three-dimensional reconstruction of capsule endoscopic images
  • A method and system for three-dimensional reconstruction of capsule endoscopic images
  • A method and system for three-dimensional reconstruction of capsule endoscopic images

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Embodiment Construction

[0050] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0051] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, or two The internal communication of each element may be directly connected or indirectly connected through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0052] The inventio...

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Abstract

The invention discloses a method and system for three-dimensional reconstruction of a capsule endoscopic image. The three-dimensional reconstruction method for a capsule endoscopic image comprises the following steps: calibrating a monocular camera of a capsule endoscope, obtaining internal and external parameters of the camera; selecting the monocular camera The sequence of photographed pictures is corrected; the feature points of the corrected image are detected; the obtained feature points are matched and tracked to form a track of feature points; image photography reconstruction; three-dimensional reconstruction of the image processed in step S5 . The invention generates a three-dimensional and accurate 3D dense point cloud model through a sequence of monocular pictures to complete three-dimensional reconstruction. The brightness of the feature point extraction picture of the present invention is unchanged, the feature points can be matched and tracked well, and the effect of three-dimensional reconstruction is more robust. Compared with the traditional monocular 3D reconstruction method, the feature extraction and tracking speed is fast, and real-time 3D reconstruction can be achieved.

Description

technical field [0001] The invention relates to the technical field of image processing, and is particularly suitable for the technical field of endoscopes, in particular to a method and system for three-dimensional reconstruction of capsule endoscopic images. Background technique [0002] Capsule endoscope is wireless endoscope, which is composed of a miniature camera, digital processing system and wireless transceiver system. device. Compared with the insertion-type gastrointestinal endoscope, the biggest advantage of capsule endoscopy is that it is painless, non-invasive, safe, and convenient, especially for the examination of the small intestine. Capsule endoscopy looks like a normal capsule, about 1.5 centimeters long and less than 1 centimeter in diameter. Restricted by the size of the hardware, capsule endoscopy has low image resolution and a generally low frame rate, usually 2-4 frames / s. Doctors cannot focus on observing lesions and abnormal parts. [0003] In ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/55
CPCG06T2207/10068G06T2207/30028G06T2207/30092G06T7/55
Inventor 臧道东严莎莎张志良郭凌郭慧
Owner 重庆金山医疗技术研究院有限公司
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