电子设计工程
電子設計工程
전자설계공정
Electronic Design Engineering
2015年
20期
169-172
,共4页
测井图像%多级中值滤波%FPGA实现%菱形滤波窗口
測井圖像%多級中值濾波%FPGA實現%蔆形濾波窗口
측정도상%다급중치려파%FPGA실현%릉형려파창구
logging image%multi-level median filter%FPGA implementation%rhombic window
微电阻率成像测井仪传输上来的地层信息数据需要滤波处理后才能真实地反映出地层中油层的信息,而中值滤波是图像预处理中常用的技术. 本文介绍了标准中值滤波和多级中值滤波的原理,分析了菱形窗口的特点以及适用条件,设计并实现了基于FPGA的菱形滤波窗口及其功能仿真,并对两种滤波窗口的硬件结构进行FPGA资源消耗的对比,说明文中设计的菱形滤波器对消除地层噪声干扰有很强的实用性.
微電阻率成像測井儀傳輸上來的地層信息數據需要濾波處理後纔能真實地反映齣地層中油層的信息,而中值濾波是圖像預處理中常用的技術. 本文介紹瞭標準中值濾波和多級中值濾波的原理,分析瞭蔆形窗口的特點以及適用條件,設計併實現瞭基于FPGA的蔆形濾波窗口及其功能倣真,併對兩種濾波窗口的硬件結構進行FPGA資源消耗的對比,說明文中設計的蔆形濾波器對消除地層譟聲榦擾有很彊的實用性.
미전조솔성상측정의전수상래적지층신식수거수요려파처리후재능진실지반영출지층중유층적신식,이중치려파시도상예처리중상용적기술. 본문개소료표준중치려파화다급중치려파적원리,분석료릉형창구적특점이급괄용조건,설계병실현료기우FPGA적릉형려파창구급기공능방진,병대량충려파창구적경건결구진행FPGA자원소모적대비,설명문중설계적릉형려파기대소제지층조성간우유흔강적실용성.
In order to reflect the reality of the information of stratum, the data which is acquired by Micro Resistivity Imager need filtering, and median filtering is commonly used in image preprocessing. So this paper has introduced the principle of the standard median filtering and multi-level median filtering. By analyzing the characteristics of the rhombic window and its applicable conditions, this paper has designed and realized FPGA-based rhombic filter window and functional simulation. Comparing the FPGA resource consumption of hardware structure of the two filtering windows, it is has been turned out that this rhombic window has a strong practical effect on elimination of stratigraphical noise.
