Gram Schmidt波谱锐化
Gram Schmidt spectral sharpening
锐化帕特孙函数
sharpened Patterson function
锐化纹理扩展
sharpened texture extension
受限空域锐化
restricted airspace sharping
图像锐化
image sharpening
image peaking
sharpen image
Sharpening
image enhancement
sharpening spatial filters
微分式锐化技术
sharpening technique by differentiation