本文選題：SA方法 + 衛(wèi)星視頻�。� 參考：《測繪科學(xué)技術(shù)學(xué)報》2017年01期

【摘要】：為了提高衛(wèi)星視頻圖像的質(zhì)量,針對SA方法中無法實現(xiàn)小數(shù)倍超分重建和"黑色格網(wǎng)"問題,提出了改進的SA超分辨率重建方法。對于小數(shù)倍超分問題,首先建立參考幀低分辨率圖像坐標(biāo)系,以超分倍數(shù)構(gòu)建參考幀高分格網(wǎng),按表達的物方元素一致的原則,把所有低分辨率圖像和高分辨率圖像的坐標(biāo)系統(tǒng)一在一個參考坐標(biāo)系下;對于"黑色格網(wǎng)"改善問題,在使用運動估計參數(shù)時,為了減少由于運動補償造成的誤差,取消傳統(tǒng)SA方法中四舍五入的運動參數(shù)補償方法,改為以待求點為中心確定容許誤差,通過容許誤差選擇參估點,用參估點計算高分辨率網(wǎng)格像素,以減少"黑色格網(wǎng)"現(xiàn)象。利用仿真和真實的衛(wèi)星視頻數(shù)據(jù)實驗驗證了該方法的有效性。
[Abstract]:In order to improve the quality of satellite video images, an improved SA super-resolution reconstruction method is proposed to solve the problem that the fractional overdivision reconstruction and "black grid" can not be realized in SA method. For the decimals overdivision problem, the reference frame low-resolution image coordinate system is first established, and the reference frame high-division grid is constructed by the super-split-multiple, according to the principle of consistency of the expressed object elements. Coordinate systems for all low-resolution and high-resolution images are unified in one reference coordinate system. For the improvement of "black grid", in order to reduce the error caused by motion compensation, when using motion estimation parameters, Instead of the rounding motion parameter compensation method in traditional SA method, the allowable error is determined by taking the point to be sought as the center, and the parameter estimation point is used to calculate the high-resolution grid pixels through the allowable error, so as to reduce the "black grid" phenomenon. The effectiveness of the proposed method is verified by simulation and real satellite video data experiments.
【作者單位】： 遼寧工程技術(shù)大學(xué)測繪與地理科學(xué)學(xué)院;
【基金】：國家自然科學(xué)基金項目(41501504) 2016年遼寧省教育廳一般項目(LJYL011)
【分類號】：TP751
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本文編號：1882817