YURAK ULTRATOVUSH TASVIRLARIDA SPEKL-SHOVQINNI FILTRLASH UCHUN ENTROPIYAGA MOSLASHTIRILGAN PERONA–MALIK MODELINING MODIFIKATSIYASI
Qabul qilingan: 2026-07-15 14:57:20
Nashr etilgan: 2026-04-18
Annotatsiya
Ushbu maqolada ultratovush (ExoKG) tasvirlaridagi spekl shovqinini kamaytirish muammosi tadqiq etiladi — bu diagnostik talqin va avtomatik segmentatsiya aniqligiga sezilarli ta'sir ko'rsatuvchi asosiy muammodir. Klassik Perona–Malik anizotropik diffuziya modelining entropiyaga asoslangan adaptiv modifikatsiyasi taklif etiladi, bunda har bir piksel uchun diffuziya koeffitsienti lokal statistik tavsiflovchilar — entropiya va dispersiya — yordamida moslashuvchan tarzda boshqariladi. Bir jinsli, past entropiyali sohalarda diffuziya multiplikativ spekl shovqinini bostirishga kuchaytiriladi, yuqori entropiyali sohalarda esa strukturaviy detallarni saqlash uchun diffuziya avtomatik ravishda sekinlashtiriladi. Eksperimental tekshirish klassik modelga nisbatan PSNR bo'yicha taxminan 3–4 dB va SSIM bo'yicha 0.06 ga yaxshilanishni ko'rsatdi.
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