{"title":"Application of Fourier algorithm to Near Field Optical Images: Local Resolution Estimation","authors":"D. Barchiesi","doi":"10.1051/MMM:1997101","DOIUrl":"https://doi.org/10.1051/MMM:1997101","url":null,"abstract":"In Near Field Optics, the lateral resolution is better than the limit given by the Rayleigh criterion, but this fact was usually demonstrated by using test samples. In this study we apply local Fourier algorithms to near field optical experimental images, using a noise consideration to define resolution criterion. These algorithms are able to estimate the resolution automatically and thus can lead to simple image processing. We investigate the local resolution in scanning lines and we introduce the apparatus characterization. In the first part we discuss on the problem of resolution in near field optics. Resume. 2014 En optique de champ proche, la resolution laterale depasse la limite donnee par le critere de Rayleigh, mais ce fait est generalement demontre en utilisant des objets tests. Dans cette etude, nous appliquons localement des algorithmes de Fourier a des parties d'images experimentales, en utilisant le niveau de bruit comme critere de resolution. Ces algorithmes permettent de determiner automatiquement la resolution et sont simples a mettre en 0153uvre. Nous etudions la resolution locale dans une ligne de balayage et nous caracterisons le dispositif experimental. Nous discutons la notion de resolution en champ proche.","PeriodicalId":366013,"journal":{"name":"Microscopy Microanalysis Microstructures","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116723252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Fourier transform used as a tool to evaluate systems for digitizing electron images","authors":"P. Bron, J. Rolland, Daniel Thomas","doi":"10.1051/MMM:1997102","DOIUrl":"https://doi.org/10.1051/MMM:1997102","url":null,"abstract":"Image processing methods are commonly used for the structure determination of biological molecules using electron microscopy. However, the first and crucial step is to convert the electron image intensities into numerical values to be further processed with the computer. We propose a simple method based on the Fourier transform to evaluate characteristics of different digital acquisition systems frequently found in laboratories, from the video camera linked to the electron microscope to desktop publishing scanners. Such systems have been chosen in order to represent a wide range of devices and prices.","PeriodicalId":366013,"journal":{"name":"Microscopy Microanalysis Microstructures","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127960012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Formation d'image accompagnée d'une analyse spectrale en champ complet : de J. Fourier à G. Lippmann","authors":"A. Marraud, J. Fournier","doi":"10.1051/MMM:1997104","DOIUrl":"https://doi.org/10.1051/MMM:1997104","url":null,"abstract":"La transformee de Fourier est un outil conceptuel universellement applique depuis plusieurs dizaines d'annees dans deux domaines de l'optique : l'imagerie et la spectroscopie. Ces succes ne devraient pas faire oublier que G. Lippmann avait, des 1894, introduit cette technique pour expliquer sa methode d'enregistrement interferentiel des couleurs. Remarquons que la transformee de Fourier utilisee par Lippmann fait appel aux frequences temporelles alors que celle mise en oeuvre par Duffieux utilise les frequences spatiales.","PeriodicalId":366013,"journal":{"name":"Microscopy Microanalysis Microstructures","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115417469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Transforms in Optics: The Legacy of P.-M. Duffieux","authors":"P. Hawkes","doi":"10.1051/MMM:1997107","DOIUrl":"https://doi.org/10.1051/MMM:1997107","url":null,"abstract":"The fiftieth anniversary of the publication of the first book on Fourier Optics, by P.-M. Duffieux, is recalled and the roles of the Fourier and many related transforms in image formation and image processing are recapitulated.","PeriodicalId":366013,"journal":{"name":"Microscopy Microanalysis Microstructures","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130160714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Image Analysis: Is the Fourier Transform Becoming Obsolete?","authors":"N. Bonnet, P. Vautrot","doi":"10.1051/MMM:1997106","DOIUrl":"https://doi.org/10.1051/MMM:1997106","url":null,"abstract":"We show that, despite its great usefulness in image processing and analysis, the Fourier transform may also suffer from certain drawbacks and limitations. We show how several limitations of a technical nature can be overcome. More importantly, we show that the fundamental limitation of the Fourier transform, its lack of spatial localization, has favored the development of alternative tools for the local analysis of one-dimensional signals and images. The spectrogram technique, Gabor filters and wavelets are introduced with some examples of applications. Also, the importance of the spectrum phase is emphasized.","PeriodicalId":366013,"journal":{"name":"Microscopy Microanalysis Microstructures","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130521886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Symposium in Honour of Pierre-Michel Duffieux","authors":"P. Hawkes, N. Bonnet","doi":"10.1051/MMM:01997008010R900","DOIUrl":"https://doi.org/10.1051/MMM:01997008010R900","url":null,"abstract":"","PeriodicalId":366013,"journal":{"name":"Microscopy Microanalysis Microstructures","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133899557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of Variations in Structure from High Resolution Electron Microscope Images by Combining Real Space and Fourier Space Information","authors":"M. Hytch","doi":"10.1051/MMM:1997105","DOIUrl":"https://doi.org/10.1051/MMM:1997105","url":null,"abstract":"A new method is described for analysing variations in structure from high resolution electron microscope images. In Fourier theory, the image of a perfect crystal can be considered as the sum of sinusoidal lattice fringes having constant amplitude and phase given by the corresponding Fourier component. Imperfections are introduced by allowing these Fourier components to be a function of position, thus combining real space and reciprocal space information. It is shown how images can be obtained of the local value of the amplitude and phase of each major image periodicity. The amplitude and phase images are interpreted in terms of image detail and structural variations. Relationships are derived between the phase images and displacement fields due to a distortion of the lattice fringes and variations in the local reciprocal lattice vector. The meaning of the amplitude and phase images is illustrated by the analysis of experimental images of antiphase boundaries. Quantitative analysis of experimental images of carbon nanotubes is carried out using amplitude images and of strained metal multilayers using phase images.","PeriodicalId":366013,"journal":{"name":"Microscopy Microanalysis Microstructures","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132860690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fourier Transform Applied to Alternating Temperature Calculation","authors":"F. Depasse, N. Trannoy, P. Grossel","doi":"10.1051/MMM:1997103","DOIUrl":"https://doi.org/10.1051/MMM:1997103","url":null,"abstract":"Les variations du champ de temperature alternative dans un milieu conductif sont regies par une equation du type equation d'ondes. C'est pourquoi plusieurs outils mathematiques connus depuis longtemps en Optique peuvent etre utilises pour des calculs de diffusion de la chaleur. En particulier, la decomposition en ondes planes apparait comme tres efficace. Elle est utilisee dans un exemple de nanothermique, ou les resultats du calcul sont compares a ceux fournis par l'experience.","PeriodicalId":366013,"journal":{"name":"Microscopy Microanalysis Microstructures","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124601135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis and Mapping of Natural Landscapes from Satellite Images Using Morphological Filters","authors":"C. Mering, Y. Callot, A. Kemmouche","doi":"10.1051/MMM:1996129","DOIUrl":"https://doi.org/10.1051/MMM:1996129","url":null,"abstract":"Une approche morphologique est proposee pour etudier la dynamique des paysages naturels a partir d'images satellite. Les milieux etudies connaissent tous une evolution importante due a des facteurs geologiques ou climatiques. Afin de cartographier les elements du paysage, temoins de cette dynamique, nous mettons en oeuvre des methodes basees sur les filtres morphologiques.","PeriodicalId":366013,"journal":{"name":"Microscopy Microanalysis Microstructures","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122366286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Automatic Image Analysis Today","authors":"J. Chermant, J. Serra","doi":"10.1051/MMM:1996123","DOIUrl":"https://doi.org/10.1051/MMM:1996123","url":null,"abstract":"Dans cet article nous rappelons le developpement des techniques d'analyse d'images durant ce siecle et presentons brievement les bases de l'analyse d'images et de la morphologie mathematique. On terminera par une vue des techniques utilisees a ce jour, avec une presentation de quelques applications venant de disciplines aussi variees que possible.","PeriodicalId":366013,"journal":{"name":"Microscopy Microanalysis Microstructures","volume":"266 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116610256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}