Solar blind UV and visible dual-spectral camera

WU Li-gang; HE Wen-rong; HU Jin-sun; SONG Bao-an; YANG Ming; NIN Qiu-hua

doi:10.3788/OPE.20101807.1529

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Solar blind UV and visible dual-spectral camera

Article | 更新时间：2020-08-12

- Solar blind UV and visible dual-spectral camera
- Optics and Precision Engineering Vol. 18, Issue 7, Pages: 1529-1535(2010)
- 作者机构：
  
  1. 宁波大学信息科学与工程学院,浙江宁波,315211
  2. 宁波理工科技股份有限公司,浙江宁波,315800
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20101807.1529
  CLC：
- Received：11 September 2009，
  
  Revised：10 November 2009，
  
  Published Online：30 July 2010，
  
  Published：20 July 2010
- 稿件说明：
移动端阅览
吴礼刚, 何文荣, 胡晋荪, 宋宝安, 杨鸣, 聂秋华. 日盲紫外-可见光双光谱照相机系统[J]. 光学精密工程, 2010,18(7): 1529-1535

WU Li-gang, HE Wen-rong, HU Jin-sun, SONG Bao-an, YANG Ming, NIN Qiu-hua. Solar blind UV and visible dual-spectral camera[J]. 光学精密工程, 2010,18(7): 1529-1535
吴礼刚, 何文荣, 胡晋荪, 宋宝安, 杨鸣, 聂秋华. 日盲紫外-可见光双光谱照相机系统[J]. 光学精密工程, 2010,18(7): 1529-1535 DOI： 10.3788/OPE.20101807.1529.

WU Li-gang, HE Wen-rong, HU Jin-sun, SONG Bao-an, YANG Ming, NIN Qiu-hua. Solar blind UV and visible dual-spectral camera[J]. 光学精密工程, 2010,18(7): 1529-1535 DOI： 10.3788/OPE.20101807.1529.

摘要

为准确检测电晕放电的位置和强弱

考虑电晕放电会发出日盲紫外波段(240~280 nm)光

对这一波段的目标进行检测可以避免太阳光的干扰这一特点

研制了一种基于分光方式的日盲紫外-可见光双光谱照相机。设计了一种孔径为68 mm、焦距为180 mm的高分辨率折反射结构的日盲紫外镜头

并设计了基于TMS320DM642的DSP芯片的图像处理电路。借助DSP／BIOS实时内核和RF5框架

实现了图像采集、图像输出显示、和压缩存储任务的调度

采用加权平均算法实现了图像融合。在阳光强烈的夏天对90 m处的汞灯紫外点光源和背景进行了野外成像实验

获得了较为清晰的紫外图像、可见光图像以及合成图像。此外

提出了相机的改进建议。

Abstract

As corona discharge emits the light of Solar Blind Ultraviolet (SBUV) from 240 to 280 nm

the corona sparks can avoid the interference of sunlight when an object is detected in the SBUV region. To detect the position and intensity of the corona spark precisely

a solar blind ultraviolet and visible camera based on the beam-split scheme developed by ourselves was introduced. Then

a high resolution catadioptric SBUV telescope with a large entrance pupil of 68 mm and a focus length of 180 mm was designed

and the circuit boards for image processing were given based on the DSP chip TMS320DM642.The DSP/BIOS and RF5 were used to schedule the acquisition

display

compression and store

and the weighted average algorithm was applied to image fusion. An experiment outdoor was carried out to take photos for the spot UV source of a mercury lamp and the background far from 90 m in a sunny hot summer day. As a result

the UV

visible

and fusion pictures are obtained clearly. Furthermore

some suggestions were put forward to improve the performance of the camera.

关键词

Keywords

references

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