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Mobile phone based portable multispectral imaging device and method

A multi-spectral imaging and multi-spectral image technology, applied in the fields of health diagnosis, spectral imaging, and food safety inspection, can solve the problems of slow scanning speed and low degree of automation, and achieve simple and convenient operation, high convenience, and excellent scene integration. Effect

Inactive Publication Date: 2019-01-01
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of slow scanning speed and low degree of automation of the portable multispectral system assembled with filter wheels in the above-mentioned prior art, the present invention utilizes the LCTF assembled with the Bluetooth module as the spectroscopic device, and uses the mobile phone as the imaging device, control device and data processing device. A portable multi-spectral imaging device based on a mobile phone to adjust LCTF, collect spectral images and analyze data in real time

Method used

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  • Mobile phone based portable multispectral imaging device and method
  • Mobile phone based portable multispectral imaging device and method
  • Mobile phone based portable multispectral imaging device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In the LCTF-based multi-spectral imaging optical device designed in this embodiment, LCTF3 is usually used as a light splitting element. like figure 1 As shown in (a), the device is composed of a mobile phone 1, LCTF3, an optical lens 201, and a Bluetooth module 4. The optical lens 201, LCTF3 and the camera of the mobile phone 1 are assembled according to the coaxial reference of the optical paths.

[0038] The LCTF3 is placed behind the device. The design is characterized by simple structure, accurate focusing and clear imaging. However, because the aperture of the filter is smaller than the aperture of the lens and has a certain thickness, the light intensity is lost, which makes the edge of the image Spectral resolution is reduced.

[0039] The mobile phone 1 used in this embodiment needs to support reverse charging, and the specific model can be Huawei Enjoy 6, Honor 10, Xiaomi Max2, etc., which can provide working power for LCTF3; mobile phone 1 uses a CMOS sensor...

Embodiment 2

[0055] The multi-spectral imaging optical device based on LCTF designed in this embodiment is as figure 1 Shown in (b), this device is made up of mobile phone 1, LCTF3, optical lens 2 202 (being beam expanding optical lens), optical path converter 203 and Bluetooth module 4, beam expanding optical lens 202, optical path converter 203, LCTF3 and The camera of the mobile phone 1 is assembled according to the optical path coaxial reference.

[0056] The LCTF3 is placed between the beam expander optical lens 202 and the mobile phone camera 1 . In this design, since the beam aperture between the lens and the focal plane is usually smaller than the entrance pupil aperture of the lens, the aperture of LCTF3 can be slightly smaller.

[0057] The mobile phone 1 used in this embodiment needs to support reverse charging, and the specific models can be smart phones such as Huawei Enjoy 6, Honor 10, and Xiaomi Max2, which can provide working power for LCTF3; mobile phone 1 uses a camera w...

Embodiment 3

[0075] The specific application of the device (a) involved in Example 1 to the software of the multispectral imaging system combined with the mobile phone APP is further explained:

[0076] (1) Open the "Multispectral Detection System" APP, and after logging in to the system, the initial interface is as follows: figure 2 As shown in (a), click "Bluetooth Connection" to complete automatic addressing, matching and establish a connection with LCTF. If the connection is unsuccessful, a notification box will pop up to prompt "Connection failed, please reconnect".

[0077] (2) Click "Scan Settings" to complete the settings of mobile phone camera related parameters (such as: sensitivity, exposure time and focus mode, etc.) and LCTF related parameters (scanning start wavelength, stop wavelength and wavelength scan interval, etc.). For example, in this example, the sensitivity is set to 4, the exposure time (seconds) is set to 0.4, the focus mode is set to automatic, the scanning star...

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Abstract

The invention belongs to the technical field of spectral imaging, and relates to a mobile phone based portable multispectral imaging device and method, and firstly provides the mobile phone based portable multispectral imaging device, which comprises a mobile phone, an LCTF (Liquid Crystal Tunable Filter), an optical lens or a light path converter, wherein the mobile phone, the LCTF, the optical lens or the light path converter are connected in sequence; the light paths of the optical lens, the LCTF and a camera of the mobile phone are coaxial. Afterwards, an image collection parameter is setby utilizing mobile-phone software; parameters of a scan initial wavelength, a final wavelength and a wavelength increment are designated; the collection of the spectrum and image information of a detected object is realized; and the model analytical prediction is carried out. The mobile phone based portable multispectral imaging device which is disclosed by the invention has the advantages of being high in precision, low in power consumption, high in convenience and excellent in scene fusion and the like, and can be applied to multiple fields of agricultural product detection, food safety detection and medical health diagnosis and the like.

Description

technical field [0001] The invention belongs to the technical field of spectral imaging, and in particular relates to a mobile phone-based portable multi-spectral imaging device and method, which can be applied to the fields of food safety detection, health diagnosis and the like. Background technique [0002] The spectral image cube obtained by multispectral imaging technology not only contains high-resolution two-dimensional shape information of the substance to be measured, but also contains spectral information that can reflect the chemical composition of the substance. Multispectral imaging analysis combines mature image analysis methods and spectral analysis methods. Compared with pure image analysis or spectral analysis methods, it can obtain more information, more functions, and more flexible analysis. At present, the application range of spectral imaging analysis technology covers remote sensing, biology, medicine, pesticide, food archeology and many other fields. ...

Claims

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Application Information

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IPC IPC(8): G01N21/17G01N21/25G01N21/31H04M1/725H04L29/08H04W4/80
CPCG01N21/17G01N21/255G01N21/31G01N2021/1765G01N2021/1785H04L67/12H04W4/80H04M1/72406H04M1/72415Y02D30/70
Inventor 邹小波石海军史永强石吉勇张文黄晓玮李志华翟晓东徐艺伟胡雪桃
Owner JIANGSU UNIV
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