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انجام پروژه های مهندسی برق - بازسازی تصاویر با استفاده از حسگری فشرده
بازسازی تصاویر با استفاده از حسگری فشرده
چهارشنبه 23 دی 1394 ساعت 10:47 ق.ظ | نوشته ‌شده به دست رسول نیک بخت | ( نظرات )

حذف نویز  از تصاویر یکی از نیازهای اساسی در پردازش تصاویر دیجیتال می باشد. عمل حذف نویز می توان در دروبین های دیجیتال و یا وسایل ثانویه انجام گیرد. با توجه به رشد روزافزون فناوری تصاویر گرفته شده تا رزولوشون بالای بوده و  حجم اطلاعات پردازشی  روز به روز بیشتر می شود.

از طرفی در سال های اخیر تئوری حسگری فشرده به عنوان روشی برای اکتساب اطلاعات از  سیگنال های تنک مطرح شده است. تنک به این که این سیگنال تحت تبدیلات خطی نظیر فوریه، ویولت و .... تنها دارای تعداد  اندکی ضرایب غیر صفر می باشند.

همچنین می دانیم که سیگنال تصویر اغلب در حوریه فوریه  یا ویولت تنک می باشد. البته فض تنکی کامل به صورت کامل برقرار نبوده و بخصوص برای سیگنال حاوی نویز ضرایب گفته شده برابر صفر نمی باشد. ولی در هر صورت می توان به کمک روش های مختلف نویز را از تصویر جدا کرد. روش های جداسازی نویز از تصویر در [1]  مورد بررسی قرار گرفته اند.

ارتباط با نویسنده :

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   Email:ord2us@gmail.com 

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