تصویربرداری دید غیر مستقیم NLOS در طول موج مادون قرمز موج کوتاه و بلند

نوع مقاله : مقاله پژوهشی

نویسندگان

1 پژوهشگر،دانشگاه جامع امام حسین (ع)، تهران ، ایران

2 کارشناسی ارشد،دانشگاه جامع امام حسین (ع)، تهران ، ایران

چکیده

در این مقاله یک روش تصویربرداری از اهداف خارج از دیدمستقیم یا Non-Line of Sight Imaging در طول‌موج مادون‌قرمز بلند (LWIR) به‌صورت غیرفعال و در طول‌موج مادون‌قرمز کوتاه (SWIR) به‌صورت فعال ارائه‌شده است. در تصویربرداری خارج از دیدمستقیم در طول‌موج مادون‌قرمز موج‌بلند از یک دوربین LWIR که یک دوربین uncooled Camera-320×240 pixel بوده و اندازه هر پیکسل آن 30 µm است، استفاده‌شده است. در این تصویربرداری که به‌صورت غیرفعال انجام‌شده تصویر یک جسم گرم نظیر هویه با موفقیت بازیابی شده است. در تصویربرداری خارج از دیدمستقیم دیگر که در طول مادون‌قرمز موج‌کوتاه به‌صورت فعال انجام‌شده با استفاده از یک منبع نور با طول‌موج مادون‌قرمز موج‌کوتاه و تابش آن به یک جسم که در دیدمستقیم دوربین قرار ندارد، موج منعکس‌شده از یک سطح بازتابنده، وارد دوربین SWIR مدل SX-1.7-320 شده و نهایتاً تصویر هدف بازیابی می‌شود. نتایج تصویربرداری موفقیت این نوع تصویربرداری در طول‌موج‌های مادون‌قرمز موج‌بلند و موج‌کوتاه به ترتیب در حالت غیرفعال و فعال را نشان می‌دهد. تصاویر به‌دست‌آمده از تصویربرداری دید غیرمستقیم NLOS کارایی این روش را به ترتیب در طول‌موج‌های LWIR و SWIR در حالت‌های غیرفعال و فعال نشان می‌دهند. اعتبار سنجی این روش تصویربرداری با مقایسه تصاویر به‌دست‌آمده با تصاویر اصلی، با استفاده از معیارهای MSE و RMSE انجام می‌شود.

کلیدواژه‌ها

عنوان مقاله [English]

Non-line-of-sight (NLOS) imaging in short and long-wave infrared wavelengths

نویسندگان [English]

  • Mohammad Roueinfar 1
  • mahdi salmanian 2
1 Researcher, Imam Hossein University, Tehran, Iran
2 Master's degree, Imam Hossein University (AS), Tehran, Iran
چکیده [English]

This paper presents a method for Non-Line Of Sight (NLOS) imaging that works passively in the long-wave infrared and actively in the short-wave infrared. An LWIR camera, an uncooled camera with 320×240 pixels and a size of 30 µm per pixel, is used for imaging in the long-wave infrared. In this passive imaging, the image of a hot object, such as a soldering iron, was successfully captured. In other imaging, which is actively performed in short-wave infrared by using a light source with a short-wave infrared wavelength and aiming it at an object that is not in the camera's direct field of view, the wave reflected from a reflective surface enters the SWIR camera model SX-1.7-320 and finally the target image is captured. The images obtained from non-line-of-sight (NLOS) imaging demonstrate the efficacy of this technique in both the long-wave infrared (LWIR) and short-wave infrared (SWIR) wavelengths under passive and active modes, respectively. The validation of this imaging method is conducted by comparing the captured images with the original images, employing the Mean Squared Error (MSE) and Root Mean Squared Error (RMSE) criteria.

کلیدواژه‌ها [English]

  • Non-Line-Of-Sight imaging
  • long wave infrared
  • short wave infrared
  • resolution

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رادار
دوره 11، شماره 2
پاییز و زمستان
بهمن 1402
صفحه 61-70

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سابقه مقاله

  • تاریخ دریافت: 19 مرداد 1402
  • تاریخ بازنگری: 08 آبان 1402
  • تاریخ پذیرش: 21 آذر 1402
  • تاریخ انتشار: 01 دی 1402

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