NONLINEAR DIGITAL FILTERING OF SCANNING-PROBE-MICROSCOPY IMAGES BY MORPHOLOGICAL PSEUDOCONVOLUTIONS

被引:12
作者
WEISMAN, AD
DOUGHERTY, ER
MIZES, HA
MILLER, RJD
机构
[1] UNIV ROCHESTER,INST OPT,ROCHESTER,NY 14627
[2] ROCHESTER INST TECHNOL,CTR IMAGING SCI,ROCHESTER,NY 14623
[3] XEROX CORP,WEBSTER RES CTR,WEBSTER,NY 14580
关键词
D O I
10.1063/1.351233
中图分类号
O59 [应用物理学];
学科分类号
摘要
A recently developed class of digital filters known as morphological pseudoconvolutions is applied to scanning tunneling microscopy (STM) images. These filters use a nonlinear branch of image processing known as morphology to improve the characteristics of both moving mean and moving median filters. They filter equally in both the x and y directions, so as not to introduce artifacts, and they have an adjustable parameter that allows the user to restore the observed image completely as the parameter tends to infinity. Very few assumptions are made concerning image and noise content; only the shape of typical data is taken into account. These filters are shown to outperform, both visually and in the mean-square-error sense, previously introduced Wiener filtering techniques. The filters are compared on typical STM-type images, using both modeled and actual data. The technique is general, and has been shown to perform very well on all types of STM and atomic force microscopy images.
引用
收藏
页码:1565 / 1578
页数:14
相关论文
共 28 条
[1]   NOISE-REDUCTION TECHNIQUE FOR SCANNING TUNNELING MICROSCOPY [J].
ABRAHAM, DW ;
WILLIAMS, CC ;
WICKRAMASINGHE, HK .
APPLIED PHYSICS LETTERS, 1988, 53 (16) :1503-1505
[2]  
[Anonymous], 1989, FUNDAMENTALS DIGITAL
[3]  
[Anonymous], PROBABILITY RANDOM V
[4]   OPTIMAL MEDIAN TYPE FILTERS FOR EXPONENTIAL NOISE DISTRIBUTIONS [J].
ASTOLA, J ;
NEUVO, Y .
SIGNAL PROCESSING, 1989, 17 (02) :95-104
[5]  
BARTLESON C, 1984, OPTICAL RAD MEASUREM
[6]   A STUDY OF GRAPHITE SURFACE WITH STM AND ELECTRONIC-STRUCTURE CALCULATIONS [J].
BATRA, IP ;
GARCIA, N ;
ROHRER, H ;
SALEMINK, H ;
STOLL, E ;
CIRACI, S .
SURFACE SCIENCE, 1987, 181 (1-2) :126-138
[7]   DIRECT OBSERVATION OF NATIVE DNA STRUCTURES WITH THE SCANNING TUNNELING MICROSCOPE [J].
BEEBE, TP ;
WILSON, TE ;
OGLETREE, DF ;
KATZ, JE ;
BALHORN, R ;
SALMERON, MB ;
SIEKHAUS, WJ .
SCIENCE, 1989, 243 (4889) :370-372
[8]  
BONCELET C, 1991, P SOC PHOTO-OPT INS, V1451, P70, DOI 10.1117/12.44317
[9]   A GENERALIZATION OF MEDIAN FILTERING USING LINEAR-COMBINATIONS OF ORDER-STATISTICS [J].
BOVIK, AC ;
HUANG, TS ;
MUNSON, DC .
IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1983, 31 (06) :1342-1350
[10]  
DOUGHERTY ER, 1990, P SOC PHOTO-OPT INS, V1247, P157, DOI 10.1117/12.19606