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Image matching and surface registration for 3D reconstruction of a scoliotic torso / I. Detchev in Geomatica, vol 65 n° 2 (June 2011)  

Public [article]  inGeomatica > vol 65 n° 2 (June 2011) . - pp 175 - 187 Titre : Image matching and surface registration for 3D reconstruction of a scoliotic torso Type de document : Article/Communication Auteurs : I. Detchev, Auteur ; A. Habib, Auteur ; Y. Chang, Auteur Année de publication : 2011 Article en page(s) : pp 175 - 187 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes IGN] analyse diachronique [Termes IGN] appariement d'images [Termes IGN] étalonnage d'instrument [Termes IGN] imagerie médicale [Termes IGN] médecine humaine [Termes IGN] photogrammétrie médicale [Termes IGN] précision submillimétrique [Termes IGN] reconstruction 3D [Termes IGN] surveillance sanitaire Résumé : (Auteur) The focus of this research is a hierarchical image matching strategy and a multiple surface registration technique for 3D reconstruction of a scoliotic torso. Scoliosis is a deformity of the human spine most commonly occurring in children. After being detected, periodic examinations via x-rays are traditionally used to measure its progression. However, due to the increased risk of cancer, non-invasive and radiation-free scoliosis detection and progression monitoring methodologies are being researched. For example, quantifying the scoliotic deformity through the torso surface is a valid alternative because of its high correlation with the internal spine curvature. This work proposes a low-cost, multi-camera photogrammetric system for semi-automated 3D reconstruction of a torso surface with a sub-millimetre level accuracy. The paper first describes the system design and calibration for optimal accuracy. It then covers the reconstruction and registration procedures giving insights into the hierarchical image matching strategy and the multiple surface registration technique. Final accuracy is evaluated through the goodness of fit between the reconstructed surface and a more accurate set of points measured by a coordinate measuring machine. Numéro de notice : A2011-542 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.5623/cig2011-026 En ligne : https://doi.org/10.5623/cig2011-026 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31436 [article]

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035-2011021	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Development of a robust photogrammetric metrology system for monitoring the healing of bedsores [... pour la surveillance de la guérison des escarres] / A. Malian in Photogrammetric record, vol 20 n° 111 (September - November 2005)  

Public [article]  inPhotogrammetric record > vol 20 n° 111 (September - November 2005) . - pp 241 - 273 Titre : Development of a robust photogrammetric metrology system for monitoring the healing of bedsores [... pour la surveillance de la guérison des escarres] Type de document : Article/Communication Auteurs : A. Malian, Auteur ; A. Azizi, Auteur ; et al., Auteur Année de publication : 2005 Article en page(s) : pp 241 - 273 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre [Termes IGN] acquisition d'images [Termes IGN] contrainte géométrique [Termes IGN] éclairement lumineux [Termes IGN] méthode robuste [Termes IGN] orientation du capteur [Termes IGN] orientation interne [Termes IGN] photogrammétrie médicale [Termes IGN] reconstruction 3D [Termes IGN] surveillance sanitaire Résumé : (Auteur) A three-camera close range photogrammetric system for robust and precise measurement of bedsores has been designed and constructed. MEDPHOS (MEDical PHOtogrammetric System) consists of three synchronised cameras with convergent optical axes. A light projector is fixed in the centre of the rig that holds the cameras. A special dot pattern is projected onto the surface to be measured, to compensate for the lack of natural texture on the wound surface. The proposed algorithm consists of the following steps : the cameras and projector are calibrated so that all interior and exterior parameters are known ; tailored image segmentation procedures are developed and applied for the detection of the projected pattern dots from the uneven background of the images using morphologic operators ; and watershed transformation is used to tackle the problem of overlapping pattern dots. To reduce the effects of non-uniform illumination and specular reflection of light due to humidity (often the case with wounds), a homomorphic transformation is developed and applied to the images. After segmentation of the images, a connected-component labelling procedure is used to establish the points for matching. The centroids of these components were precisely calculated. Intensity-based image matching has been tested without yielding satisfactory results due to the significant deviation from the Lambertian reflection assumption used for solving the correspondence problem. This problem is reliably solved by developing a new algorithm based on geometric constraints that allow feature-based matching and do not need approximate values of the location of the targets in the images. This robust three focal constraint is found to be very effective for matching provided the necessary conditions for the system configuration are met. Auxiliary photometric constraints together with the calibrated projector (which is treated like an active camera) also serve as additional sources of information for reducing the number of remaining ambiguities and checking the consistency of the results. Almost all of the required biometric information can be obtained rapidly, robustly and easily using MEDPHOS. Experimental results showed the effectiveness of the proposed technique. Numéro de notice : A2005-379 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2005.00319.x En ligne : https://doi.org/10.1111/j.1477-9730.2005.00319.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27515 [article]

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106-05031	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Medical application of multi-camera systems: bedsore analysis using medphos photogrammetric system / Malian Abbass in GIM international, vol 19 n° 4 (April 2005)

Public [article]  inGIM international > vol 19 n° 4 (April 2005) . - pp 45 - 47 Titre : Medical application of multi-camera systems: bedsore analysis using medphos photogrammetric system Type de document : Article/Communication Auteurs : Malian Abbass, Auteur Année de publication : 2005 Article en page(s) : pp 45 - 47 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre [Termes IGN] acquisition d'images [Termes IGN] données multicapteurs [Termes IGN] médecine humaine [Termes IGN] photogrammétrie médicale [Termes IGN] photogrammétrie numérique [Termes IGN] reconstruction 3D Résumé : (Auteur) Medical applications such as bedsore analysis often require 3D surface reconstruction of the human body. Major surface reconstruction techniques are based on mechanical digitizers, laser scanners and vision systems, including photogrammetry. Multi-camera systems can greatly reduce ambiguity resulting from loss of information associated with the perspective mapping of a 3D scene onto a 2D image. The authors present three and four-camera photogrammetric systems for the analysis of bedsores Numéro de notice : A2005-125 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27263 [article]

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061-05041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Photogrammetrische Verfahren zur Erfassung von menschlichen Körperoberflächen / H. Gäbel (1993)

Public Titre : Photogrammetrische Verfahren zur Erfassung von menschlichen Körperoberflächen Titre original : [Procédés photogrammétriques pour la saisie de la superficie corporelle humaine] Type de document : Thèse/HDR Auteurs : H. Gäbel, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1993 Collection : DGK - C Sous-collection : Dissertationen num. 405 Importance : 74 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9450-5 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre [Termes IGN] médecine humaine [Termes IGN] photogrammétrie médicale [Termes IGN] restitution Index. décimale : 33.70 Photogrammétrie terrestre Résumé : (Auteur) The applicability of surface measurement systems in clinical-orthopaedical treatment is discribed. The results of a 3D-acoustical-measurement-system (Topometrie) are compared with different photogrammetrk investigations. Anatomical references are explained as well as parameters to judge spinal column geometry. Within various clinical screenings methods are worked out to discribe the human body shape and its relatior to the spine. Accuracy, reproducability and clinical relevance of the investigations are mentioned criticaly. The results of the examinations have a great importance for high precise, spacial diagnosis of orthopaedic diseases. Moreover the 3D-surface-measurements enable an objective judgement of body asymmetries and geometrical-anatomical relations. Numéro de notice : 28078 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=63425

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X-ray photogrammetry of artificial joints / A.R. Turner-Smith in Photogrammetric record, vol 13 n° 75 (April - September 1990)  

Public [article]  inPhotogrammetric record > vol 13 n° 75 (April - September 1990) . - pp 347 - 366 Titre : X-ray photogrammetry of artificial joints Type de document : Article/Communication Auteurs : A.R. Turner-Smith, Auteur Année de publication : 1990 Article en page(s) : pp 347 - 366 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre [Termes IGN] photogrammétrie médicale [Termes IGN] rayon X Numéro de notice : A1990-038 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.1990.tb00691.x En ligne : https://doi.org/10.1111/j.1477-9730.1990.tb00691.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25457 [article]

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106-90011	RAB	Revue	Centre de documentation	En réserve L003	Disponible
106-90012	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Stereomicroscope photogrammetry for the measurement of small objects / H.L. Mitchell in Photogrammetric record, vol 13 n° 74 (October 1989 - March 1990)  

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16th international congress ISPRS, B5. Commission 5 / International society for photogrammetry and remote sensing (1980 -) (1988)  

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A technique for anatomic feature extraction and tracking on sequential digital X-ray images / S. Curry in Photogrammetria, vol 42 n° 3 (December 1987)

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Technical papers 1987, ASPRS-ACSM annual convention : ASPRS 53rd annual meeting, ACSM 47th annual meeting, Volume 7. Non-topographic photogrammetry : Proceedings international colloquium on network design optimization in non-photographic photogrammetry / American society for photogrammetry and remote sensing (1987)

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Photogrammétrie en temps réel : un nouveau défi / J.P. Saint-Aubin in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 104 (Décembre 1986)

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Medical applications of close range photogrammetry / A. Macleod in Photogrammetric record, vol 12 n° 68 (October 1986 - March 1987)  

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[Selected papers presented at international symposia] / Kennert Torlegard (1983)

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Symposium de la commission 5 de la SIPT, York, 6-10 septembre 1982 sur la précision et la rapidité en photogrammétrie à courte distance / Philippe Giraudin in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 89 (Janvier 1983)

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Developments in close range photogrammetry - 1 / B.K. Atkinson (1980)

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Handbook of non-topographic photogrammetry / Maurice Carbonnell (1979)

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