Pub Date : 1989-03-01DOI: 10.1016/0031-8663(89)90011-2
Knut Ragnar Holm
The performance of systems for on-line triangulation as well as for real-time point positioning depends on both effective hardware and software. Full utilization of the potential provided by the hardware, always depends on effective software. In this context there is an on-going search for fast algorithms for sequential adjustment. The performance of such algorithms can best be judged by practical tests using software which is as close as possible to the real application. This paper discusses an algorithm based on Givens transformations, and includes the results of a comparative test of this algorithm and the Triangular Factor Update. In the test, the Givens transformations algorithm appears to be up to four times faster than the Triangular Factor Update for updating the factorized normal equation system.
{"title":"Test of algorithms for sequential adjustment in online phototriangulation","authors":"Knut Ragnar Holm","doi":"10.1016/0031-8663(89)90011-2","DOIUrl":"10.1016/0031-8663(89)90011-2","url":null,"abstract":"<div><p>The performance of systems for on-line triangulation as well as for real-time point positioning depends on both effective hardware and software. Full utilization of the potential provided by the hardware, always depends on effective software. In this context there is an on-going search for fast algorithms for sequential adjustment. The performance of such algorithms can best be judged by practical tests using software which is as close as possible to the real application. This paper discusses an algorithm based on Givens transformations, and includes the results of a comparative test of this algorithm and the Triangular Factor Update. In the test, the Givens transformations algorithm appears to be up to four times faster than the Triangular Factor Update for updating the factorized normal equation system.</p></div>","PeriodicalId":101020,"journal":{"name":"Photogrammetria","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1989-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-8663(89)90011-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86339999","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}
Pub Date : 1988-11-01DOI: 10.1016/0031-8663(88)90025-7
Daniel L. Edwards, Gregory B. Desmond, Michael W. Schoppmann
The Defense Advanced Research Projects Agency (DARPA) Strategic Computing Program is a large, multi-year effort focused on developing the next generation of computers and machine intelligence. Within this program the Autonomous Land Vehicle (ALV) Project calls for the development and demostration of increasingly sophisticated autonomous land navigation capabilities. As part of this effort, the U.S. Army Engineer Topographic Laboratories (USAETL) has the task of producing a high-resolution, high-accuracy, experimental digital terrain data base of a 12-km2 test site. This data base will be used in conjunction with inertial navigation and computer vision systems for autonomous traversal by the vehicle. The data base consist of six overlays including landforms, soils, surface drainage, land cover, roads, and a high-density digital elevation model (DEM). ALV application of the terrain data base include route planning and a-priori information for machine vision.
Data compilation was performed on the Computer-Assisted Photo Interpretation Research (CAPIR) system at USAETL. CAPIR is an ongoing research effort which addresses the issues of digital terrain data extraction, storage, and exploitation. This paper willaddress data requirements and systems for building terrain dta bases in support of experimental autonomous land vehicle navigation.
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Pub Date : 1988-11-01DOI: 10.1016/0031-8663(88)90030-0
A.N. Venetsanopoulos
{"title":"Conference on Digital Signal Processing","authors":"A.N. Venetsanopoulos","doi":"10.1016/0031-8663(88)90030-0","DOIUrl":"https://doi.org/10.1016/0031-8663(88)90030-0","url":null,"abstract":"","PeriodicalId":101020,"journal":{"name":"Photogrammetria","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1988-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-8663(88)90030-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91637674","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}
Pub Date : 1988-11-01DOI: 10.1016/0031-8663(88)90022-1
U. Helava
{"title":"On system concepts for digital automation","authors":"U. Helava","doi":"10.1016/0031-8663(88)90022-1","DOIUrl":"https://doi.org/10.1016/0031-8663(88)90022-1","url":null,"abstract":"","PeriodicalId":101020,"journal":{"name":"Photogrammetria","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1988-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84952262","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}
Pub Date : 1988-11-01DOI: 10.1016/0031-8663(88)90030-0
A. Venetsanopoulos
{"title":"Conference on Digital Signal Processing 710 September 1987, Florence-Italy","authors":"A. Venetsanopoulos","doi":"10.1016/0031-8663(88)90030-0","DOIUrl":"https://doi.org/10.1016/0031-8663(88)90030-0","url":null,"abstract":"","PeriodicalId":101020,"journal":{"name":"Photogrammetria","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1988-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91463069","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}
Pub Date : 1988-11-01DOI: 10.1016/0031-8663(88)90027-0
B.N. Koopmans
{"title":"Colloquium on spectral signatures of objects in remote sensing","authors":"B.N. Koopmans","doi":"10.1016/0031-8663(88)90027-0","DOIUrl":"https://doi.org/10.1016/0031-8663(88)90027-0","url":null,"abstract":"","PeriodicalId":101020,"journal":{"name":"Photogrammetria","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1988-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-8663(88)90027-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91637676","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}
Pub Date : 1988-11-01DOI: 10.1016/0031-8663(88)90026-9
N. Press
{"title":"Second International Conference on the commercial and industrial Uses of Outer Space","authors":"N. Press","doi":"10.1016/0031-8663(88)90026-9","DOIUrl":"https://doi.org/10.1016/0031-8663(88)90026-9","url":null,"abstract":"","PeriodicalId":101020,"journal":{"name":"Photogrammetria","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1988-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-8663(88)90026-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91620956","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}
Pub Date : 1988-11-01DOI: 10.1016/0031-8663(88)90025-7
D. Edwards, Michael W. Schoppmann, G. Desmond
{"title":"Terrain data base generation for autonomous land vehicle navigation","authors":"D. Edwards, Michael W. Schoppmann, G. Desmond","doi":"10.1016/0031-8663(88)90025-7","DOIUrl":"https://doi.org/10.1016/0031-8663(88)90025-7","url":null,"abstract":"","PeriodicalId":101020,"journal":{"name":"Photogrammetria","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1988-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74399923","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}
Pub Date : 1988-11-01DOI: 10.1016/0031-8663(88)90022-1
U.V. Helava
This paper starts with a review of the merits of digital image photogrammetry, arriving at the conclusion that for mapping purposes its main advantage is its potential to realize efficient automation. With this in mind, standard photogrammetric tasks are evaluated to see how easy or difficult they might be to automate digitally. The result is that all tasks, except feature extraction, can be performed automatically using techniques already in place. Several digital image photogrammetric systems are then outlined to show what capabilities are needed. An evolution from film-based hybrid systems to intrinsically digital systems is anticipated. Also, the use of digital image photogrammetry in the industrial arena is expected to become a significant new application area. In this evolution, software is seen as an increasingly important system component, capable of becoming the part which is specifically photogrammetric in future processing systems.
{"title":"On system concepts for digital automation","authors":"U.V. Helava","doi":"10.1016/0031-8663(88)90022-1","DOIUrl":"https://doi.org/10.1016/0031-8663(88)90022-1","url":null,"abstract":"<div><p>This paper starts with a review of the merits of digital image photogrammetry, arriving at the conclusion that for mapping purposes its main advantage is its potential to realize efficient automation. With this in mind, standard photogrammetric tasks are evaluated to see how easy or difficult they might be to automate digitally. The result is that all tasks, except feature extraction, can be performed automatically using techniques already in place. Several digital image photogrammetric systems are then outlined to show what capabilities are needed. An evolution from film-based hybrid systems to intrinsically digital systems is anticipated. Also, the use of digital image photogrammetry in the industrial arena is expected to become a significant new application area. In this evolution, software is seen as an increasingly important system component, capable of becoming the part which is specifically photogrammetric in future processing systems.</p></div>","PeriodicalId":101020,"journal":{"name":"Photogrammetria","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1988-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-8663(88)90022-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91637536","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}
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