شناسایی اهداف در تصاویر سنجش‌ازدوری با قدرت تفکیک بالا با استفاده از روش‌های یادگیری عمیق

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه صنعتی نوشیروانی بابل

2 دانشگاه صنعتی خواجه نصیرالدین طوسی

چکیده

شناسایی عوارض موجود در تصاویر، یکی از مسائل اساسی در حوضه‌ تفسیر تصاویر به‌ویژه در تصاویر سنجش‌از‌دوری، به شمار می‌آید. یکی از روش‌های کارآمد و به‌روز در این زمینه، به‌کارگیری شیوه‌های یادگیری عمیق، جهت استخراج و تفسیر است. یک عارضه، مجموعه‌ای از الگوهای منحصربه‌فرد است که با عوارض مجاور خود متفاوت است، این تفاوت معمولاً در یک یا چند ویژگی به‌طور هم‌زمان اتفاق می‌افتد که می‌توان به‌تفاوت در شکل، رنگ و درجه خاکستری اشاره نمود. در این‌ راستا، روش یادگیری عمیق با توانایی تحلیل مفاهیم انتزاعی سطح بالا، می‌تواند انتخاب مناسبی در این زمینه باشد. در روش پیشنهادی، ابتدا یک پایگاه‌داده مطابق با شرایط محیطی و جغرافیایی کشور از برخی از فرودگاه‌های ایران تشکیل‌‌شد. سپس با استفاده از شبکه‌های عصبی کانولوشنی به تولید مدل یادگیرنده بهینه اقدام شد. برای این کار، در قسمت پردازش داده‌های خام در کنار استفاده از روش انتقال آموزشی، بردارهایی جهت دسته‌بندی عوارض موردنظر استخراج و به یک مدل ماشین‌بردار پشتیبان طبقه‌بندی‌کننده، تحویل داده می‌شوند. در ادامه، مقادیر خروجی با مقادیر به‌دست‌آمده از تصویر آزمایشی برای هر عارضه، مقایسه و در یک روند تکرارشونده تحلیل و جهت تطابق ساختاری بررسی می‌شوند. نتایج استخراج‌شده از اعمال مدل پیشنهادی بر روی چند سری داده‌ آزمایشی، ارزیابی و با روش‌های مشابه مقایسه شد که درنهایت با مقادیر 21/98 درصد برای معیار Precision و 1/99 درصد برای معیار F1-Measure، قادر به شناسایی عوارض هدف است

کلیدواژه‌ها

عنوان مقاله [English]

Target detection from high-resolution remote sensing images using deep learning methods

نویسندگان [English]

  • nima farhadi 1
  • Abas Kiani 2
  • Hamid Ebadi 2
1 Babol Noshirvani University of Technology
2 Faculty, K.N.Toosi
چکیده [English]

Object detection is one of the fundamental issues in image interpretation process, especially from remote-sensing imagery. One of the most effective and efficient methods in this field is the use of deep learning algorithm for feature extraction and interpretation. An object is a collection of unique patterns that differ with own adjacent properties. This difference usually occurs in one or more features simultaneously, which can be indicated by the difference in shape, color, and gray values. In this regard, the use of deep learning as an efficient branch of machine learning can be useful in generating high-level concepts through learning in different layers. In this research, a database based on the environmental and geographical conditions from some Iranian airports was created. Additionally, an optimal learner model was developed with a convolutional neural network. For this purpose, in the raw data processing section, besides using the transfer learning method, some vectors were extracted to classify the objects and delivered to an SVM model. The output values were compared with the values obtained from the test image for each object, and they were analyzed in a repeatable process for structural matching. Precision of 98.21% and F1-Measure of 99.1% was achieved, for identification of the target objects

کلیدواژه‌ها [English]

  • Deep Learning
  • Neural Network
  • Remote Sensing imagery
  • Machine Learning
  • Transfer learning

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نشریه سنجش از دور و GIS ایران
دوره 11، شماره 1 - شماره پیاپی 41
اردیبهشت 1398
صفحه 48-64

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