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Methodology and Modeling of UAV Push-Broom Hyperspectral BRDF Observation Considering Illumination Correction 期刊论文  OAI收割
REMOTE SENSING, 2024, 卷号: 16, 期号: 3
作者:  
Wang, Zhuo;  Li, Haiwei;  Wang, Shuang;  Song, Liyao;  Chen, Junyu
  |  收藏  |  浏览/下载:30/0  |  提交时间:2024/03/15
Push-broom compressive hyperspectral imaging method based on self-fusion refinement 期刊论文  OAI收割
OPTICS COMMUNICATIONS, 2023, 卷号: 530
作者:  
Zhu, Mengjun;  Yi, Wenjun;  Du, Junyi;  Zhu, Shuyue;  Qi, Junli
  |  收藏  |  浏览/下载:47/0  |  提交时间:2023/02/13
Study on the influence of spectral overflow and its correction method of push broom static hadamard transform spectral imager 会议论文  OAI收割
Virtual, Online, China, 2022-12-18
作者:  
Zhou, Yingshu;  Gao, Xiaohui;  Liu, Jie;  Liu, Xuebin
  |  收藏  |  浏览/下载:39/0  |  提交时间:2023/03/13
An HDR imaging method with DTDI technology for push-broom cameras 期刊论文  OAI收割
Photonic Sensors, 2018, 卷号: 8, 期号: 1, 页码: 34-42
作者:  
Sun, W.;  Han, C. S.;  Xue, X. C.;  Lv, H. Y.;  Shi, J. X.
  |  收藏  |  浏览/下载:31/0  |  提交时间:2019/09/17
Realization of the imaging-auto-focus on the APRC using splicing- CCD (EI CONFERENCE) 会议论文  OAI收割
International Conference on Graphic and Image Processing, ICGIP 2011, October 1, 2011 - October 2, 2011, Cairo, Egypt
Lu Z.; Guo Y.; Xue X.; Ma T.; Lv H.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
Study on dynamic imaging on TDI CCD optical remote sensor of push-broom technology (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
A set special detecting system is proposed based on TDICCD push-broom technology applying in dynamic imaging detecting experiment of space optics remote sensor. In the system  In the course of detecting  push-broom movement of the satellite is simulated through using double supporting U structure precision rotary platform with remote sensor by angular speed 0.555/s  regard Nyquist frequency target as detecting aim  within the range of 5 and control precision on steady speed achieves 0.3%  in order to solve matching uncertainty between the CCD pixel and the vertical target strip image when the remote sensor does push-broom  make matching simplify  enhance the measurement result the accuracy. So the tolerance a/n arithmetic progression gap target strip is joined in each group of rectangular vertical group target strip. The remote sensor obtains in vertical  the level and 45 the direction 0 fields of view  0.86 the field of view Nyquist frequency target strip image after detected  a group target strip which can precision matching to TDICCD pixel at least can be obtained through analysis and dealing with 0.86 field of view's target strip image. The experiment not only verifies the detecting system's feasibility but simultaneously verifies whether to have the high quality dynamic imaging quality when TDICCD push-broom technology is adopted on the remote sensor developed. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Level 0 and level 1 data processing for a type of hyper-spectral imager (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Optical Instruments and Technology, OIT 2009, October 19, 2009 - October 21, 2009, Shanghai, China
Li X.; Yan C.
收藏  |  浏览/下载:85/0  |  提交时间:2013/03/25
Hyper-spectral imaging (HSI) is a kind of optical remote sensor that can simultaneously obtain spatial and spectral information of ground targets. We are now designing a data processing system for a type of space-borne push-broom HSI  then it performs radiometric and spectral calibration based on the ground calibration results and onboard calibration collection. The detailed algorithms for bad pixel replacement  which has 128 spectral channels covering the spectral range from 400nm to 2500nm. With its large amount of spectral channels  radiometric and spectral calibration were presented. After processing  the HSI collects large volume of spectral imaging data need to be efficiently and accurately processed and calibrated. In this paper  the digital numbers downlinked from the spacecraft can be converted into at-sensor absolute spectral radiance of ground targets  the detailed Level 0 and Level 1 data processing steps for the HSI were presented. The Level 0 processing refers to a set of tasks performed on the data downlinked from the spacecraft  thus providing accurate quantified spectral imaging data for various applications. 2009 SPIE.  including decoding to extract science data  separating the science data into files corresponding to different tasks (e.g. ground imaging  dark imaging  and onboard calibration)  checking data integrity and instrument settings  data format conversion  and Level 0 files creation. The Level 1 processing performs several steps on Level 0 data. Firstly  it corrects the image artifacts (mostly the SWIR smear effect)  subtracts the dark background  and performs the bad pixel replacement according to the prelaunch measurement  
Autofocusing technique based on image processing for remote-sensing camera (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2007 - Image Processing, September 9, 2007 - September 12, 2007, Beijing, China
作者:  
Wang X.;  Xu S.-Y.;  Wang X.;  Wang X.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
The key to the auto-focusing technique based on image processing is the selection of focus measure reflecting image definition. Usually the measures derived are on the premise of the images acquired with the same scene. As for the remote-sensing camera working in linear CCD push-broom imaging mode  the premise doesn't exist because the scenes shot are different at any moment  which brings about difficulties to the selection of the focus measure. To evaluate the image definition  the focus measure based on blur estimation for rough adjustment is proposed to estimate the focused position by only two different lens positions  which greatly saves the auto-focusing time. Another evaluation function based on edge sharpness is developed to find best imaging position in the narrow range. Simulations show that the combination of the two measures has the advantages of rapid reaction and high accuracy.