{"title":"The analysis of morphological filters with multiple structuring elements","authors":"Jisheng Song, Edward J Delp","doi":"10.1016/0734-189X(90)90150-T","DOIUrl":"10.1016/0734-189X(90)90150-T","url":null,"abstract":"<div><p>Mathematical morphology has been widely used in the image processing area in recent years. Due to the nature of mathematical morphology, there are limitations in the performance of simple morphological algorithms that use a single structuring element. Combinations of morphological operators with other set operations as well as the utilization of multiple structuring elements can enhance the performance of morphological-based filters. In this paper we present properties of morphological operators that use multiple structuring elements. We show that these properties can be used to design complex morphological-based algorithms.</p></div>","PeriodicalId":100319,"journal":{"name":"Computer Vision, Graphics, and Image Processing","volume":"50 3","pages":"Pages 308-328"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0734-189X(90)90150-T","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122636057","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 fast algorithm for the restoration of images based on chain codes description and its applications","authors":"Long-Wen Chang, Kuen-Long Leu","doi":"10.1016/0734-189X(90)90149-P","DOIUrl":"10.1016/0734-189X(90)90149-P","url":null,"abstract":"<div><p>A fast algorithm for the restoration of an image is presented. The image is described by using chain codes which record the contours of the image. The algorithm gives a simple idea for region filling. Some geometric properties for the image can be easily derived by our method. Comparison of the proposed method and one existing method is also provided.</p></div>","PeriodicalId":100319,"journal":{"name":"Computer Vision, Graphics, and Image Processing","volume":"50 3","pages":"Pages 296-307"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0734-189X(90)90149-P","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122842937","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":"Bounds on time-to-collision and rotational component from first-order derivatives of image flow","authors":"Muralidhara Subbarao","doi":"10.1016/0734-189X(90)90151-K","DOIUrl":"10.1016/0734-189X(90)90151-K","url":null,"abstract":"<div><p>A moving rigid object produces a moving image on the retina of an observer. It is shown that only the first-order spatial derivatives of image motion are sufficient to determine (i) the maximum and minimum time-to-collision of the observer and the object and (ii) the maximum and minimum angular velocity of the object along the direction of view. The second or higher order derivatives whose estimation is expensive and unreliable are not necessary. (The second-order derivatives are necessary to determine the actual motion of the object.) These results are interpreted in the image domain in terms of three <em>differential invariants</em> of the image flow field: <em>divergence, curl</em>, and <em>shear magnitude</em>. In the world domain, the above results are interpreted in terms of the motion and local surface orientation of the object. In particular, the result that the <em>minimum time-to-collision</em> could be determined from only the first order derivatives has a fundamental significance to both biological and machine vision systems. It implies that an organism (or a robot) can quickly respond to avoid collision with a moving object from only coarse information. This capability exists irrespective of the shape or motion of the object. The only restriction is that motion should be rigid.</p></div>","PeriodicalId":100319,"journal":{"name":"Computer Vision, Graphics, and Image Processing","volume":"50 3","pages":"Pages 329-341"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0734-189X(90)90151-K","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132094531","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 structure feature for some image processing applications based on spiral functions","authors":"Josef Bigün","doi":"10.1016/0734-189X(90)90047-Y","DOIUrl":"https://doi.org/10.1016/0734-189X(90)90047-Y","url":null,"abstract":"","PeriodicalId":100319,"journal":{"name":"Computer Vision, Graphics, and Image Processing","volume":"50 2","pages":"Page 242"},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0734-189X(90)90047-Y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134840307","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 note on the coefficients of compass mask convolutions","authors":"Morton Nadler","doi":"10.1016/0734-189X(90)90050-6","DOIUrl":"https://doi.org/10.1016/0734-189X(90)90050-6","url":null,"abstract":"","PeriodicalId":100319,"journal":{"name":"Computer Vision, Graphics, and Image Processing","volume":"50 2","pages":"Page 243"},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0734-189X(90)90050-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134842500","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":"Boundary and object labelling in three-dimensional images","authors":"Jayaram K Udupa","doi":"10.1016/0734-189X(90)90051-V","DOIUrl":"https://doi.org/10.1016/0734-189X(90)90051-V","url":null,"abstract":"","PeriodicalId":100319,"journal":{"name":"Computer Vision, Graphics, and Image Processing","volume":"50 2","pages":"Page 243"},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0734-189X(90)90051-V","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134842499","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":"Optical recognition of chinese characters","authors":"","doi":"10.1016/0734-189X(90)90044-V","DOIUrl":"https://doi.org/10.1016/0734-189X(90)90044-V","url":null,"abstract":"","PeriodicalId":100319,"journal":{"name":"Computer Vision, Graphics, and Image Processing","volume":"50 2","pages":"Page 241"},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0734-189X(90)90044-V","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134685365","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}