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A rotary optical tomography system and imaging method

An optical tomography and imaging system technology, applied in the field of optical imaging, can solve the problems of inability to meet the needs of imaging, difficult algorithms and corrections, and many optical components, so as to reduce the difficulty of algorithm correction, overcome the effect of rotation eccentricity, The effect of overcoming the defocusing effect of the optical system

Active Publication Date: 2019-08-23
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current existing imaging methods mainly use the conical scanning optical tomography system for imaging. The conical scanning optical tomographic system mainly divides the image after the conical scanning through the modulation disc to obtain the tomographic signal. The structure of the system is relatively It is complex, requires more optical components, and is affected by the rotation eccentricity and defocusing of the optical system during conical scanning, making the algorithm and correction difficult for later image reconstruction, and the stability of the system is poor
[0003] Due to the above defects, the existing imaging system using the conical scanning optical tomography system obviously cannot meet people's needs for imaging.

Method used

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  • A rotary optical tomography system and imaging method
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  • A rotary optical tomography system and imaging method

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Embodiment 1

[0054] like figure 1 As shown, a rotary optical tomography system includes a Dove prism 20 and an array detector 40 arranged sequentially along the front direction of the object to be measured 10; the array detector 40 is connected to a computer 50; The Dove prism 20 takes its optical axis as the rotation axis and is driven by a motor to rotate, and the motor is electrically connected to the computer 50; The optical axis is on the straight line; the motor adopts a stepping control mode, and every time the motor rotates a set period angle, it drives the Dove prism 20 to rotate a described period angle, and the array detector 40 obtains the Dove prism 20 Image projection data of the object under test 10 at the rotated position; the motor and the array detector 40 are synchronized through a signal synchronization controller.

[0055] The Dove prism 20 adopts the PS992M model Dove prism of Solebo Company, which has the following characteristics: when the Dove prism 20 is rotated ...

Embodiment 2

[0094] like figure 2 As shown, a rotary optical tomography system includes a Dove prism 20 and an array detector 40 arranged sequentially along the front direction of the object to be measured 10; the array detector 40 is connected to a computer 50; The Dove prism 20 takes its optical axis as the rotation axis and is driven by a motor to rotate, and the motor is electrically connected to the computer 50; The optical axis is on the straight line; the motor adopts a stepping control mode, and every time the motor rotates a set period angle, it drives the Dove prism 20 to rotate a described period angle, and the array detector 40 obtains the Dove prism 20 Image projection data of the object under test 10 at the rotated position; the motor and the array detector 40 are synchronized through a signal synchronization controller.

[0095] The Dove prism 20 adopts the PS992M model Dove prism of Solebo Company, which has the following characteristics: when the Dove prism 20 is rotated...

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Abstract

The invention belongs to the field of optical tomographic imaging and particularly relates to a rotary optical tomographic imaging system and method. The system comprises a Dove prism and an array detector which are successively arranged in the front face direction of the to-be-measured face of a to-be-measured object. The array detector is connected with a computer. Correspondingly, the invention also provides a rotary optical tomographic imaging method. According to the invention, the system comprises a single rotation device, so the structure is quite simple; rotation eccentric effects and optical system out-of-focus functions during conical scanning are avoided; algorithm correction difficulty level during following algorithm reconstruction is reduced; and system stability is improved.

Description

technical field [0001] The invention belongs to the field of optical imaging, and in particular relates to a rotary optical tomographic imaging system and an imaging method. Background technique [0002] With the development of optical technology and people's higher and higher requirements for image quality, various new imaging systems are also emerging. However, the current existing imaging methods mainly use the conical scanning optical tomography system for imaging. The conical scanning optical tomographic system mainly divides the image after the conical scanning through the modulation disc to obtain the tomographic signal. The structure of the system is relatively It is complex, requires more optical components, and is affected by the rotation eccentricity and defocusing of the optical system during conical scanning, which makes the algorithm and correction of the later image reconstruction difficult, and the stability of the system is poor. [0003] Due to the above-m...

Claims

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Application Information

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IPC IPC(8): G01B11/00G06T5/50
Inventor 李保生权靓岳翔王易诚刘善林陶晓杰
Owner HEFEI UNIV OF TECH