{"id":2401,"date":"2024-03-30T22:38:15","date_gmt":"2024-03-30T22:38:15","guid":{"rendered":"https:\/\/labs.cs.queensu.ca\/perklab\/members\/ryan-kon\/"},"modified":"2024-03-30T22:38:15","modified_gmt":"2024-03-30T22:38:15","slug":"ryan-kon","status":"publish","type":"qsc_member","link":"https:\/\/labs.cs.queensu.ca\/perklab\/members\/ryan-kon\/","title":{"rendered":"Ryan Kon"},"content":{"rendered":"<div class=\"wp-block-columns is-layout-flex wp-block-columns-is-layout-flex qsc-member-single-core-info-container\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow qsc-member-single-photo-column\">\n\t\t<img decoding=\"async\" src=\"https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/plugins\/qsc-members\/\/images\/missing-image-placeholder.png\" class=\"qsc-member-single-photo\"\/>\n\t<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow qsc-member-single-info-column\">\n<div class=\"qsc-member-name\">\n<h1>Ryan Kon<\/h1>\n<\/div>\n<div class=\"qsc-member-position\">Masters Student<\/div>\n<div class=\"qsc-member-department\"><\/div>\n<div class=\"qsc-member-organization\">Johns Hopkins University<\/div>\n<div class=\"qsc-member-date-range\">Member from <em>2005<\/em> to <em>present<\/em><\/div>\n<div class=\"qsc-member-contact\">\n<div class=\"qsc-member-socials\">\n\t\t\t<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<div class=\"qsc-member-bio\">\n<div class=\"teachpress_pub_list\"><form name=\"tppublistform\" method=\"get\"><a name=\"tppubs\" id=\"tppubs\"><\/a><\/form><div class=\"teachpress_publication_list\"><div class=\"tp_publication tp_publication_conference\"><div class=\"tp_pub_info\"><p class=\"tp_pub_author\"> Kon, Ryan;  Jain, Ameet K.;  Fichtinger, Gabor<\/p><p class=\"tp_pub_title\"><a class=\"tp_title_link\" href=\"https:\/\/dx.doi.org\/10 1109\/ISBI 2006 1624969\" title=\"Hidden seed reconstruction from C-arm images in brachytherapy\" target=\"blank\">Hidden seed reconstruction from C-arm images in brachytherapy<\/a> <span class=\"tp_pub_type tp_  conference\">Conference<\/span> <\/p><p class=\"tp_pub_additional\"><span class=\"tp_pub_additional_booktitle\">Procedings 3rd IEEE International Symposium on Biomedical Imaging: Nano to Macro, <\/span><span class=\"tp_pub_additional_year\">2006<\/span>.<\/p><p class=\"tp_pub_menu\"><span class=\"tp_resource_link\"><a id=\"tp_links_sh_480\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('480','tp_links')\" title=\"Show links and resources\" style=\"cursor:pointer;\">Links<\/a><\/span> | <span class=\"tp_bibtex_link\"><a id=\"tp_bibtex_sh_480\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('480','tp_bibtex')\" title=\"Show BibTeX entry\" style=\"cursor:pointer;\">BibTeX<\/a><\/span><\/p><div class=\"tp_bibtex\" id=\"tp_bibtex_480\" style=\"display:none;\"><div class=\"tp_bibtex_entry\"><pre>@conference{Kon2006,<br \/>\r\ntitle = {Hidden seed reconstruction from C-arm images in brachytherapy},<br \/>\r\nauthor = {Ryan Kon and Ameet K. Jain and Gabor Fichtinger},<br \/>\r\nurl = {https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Kon2006.pdf},<br \/>\r\ndoi = {10 1109\/ISBI 2006 1624969},<br \/>\r\nyear  = {2006},<br \/>\r\ndate = {2006-04-01},<br \/>\r\nurldate = {2006-04-01},<br \/>\r\nbooktitle = {Procedings 3rd IEEE International Symposium on Biomedical Imaging: Nano to Macro},<br \/>\r\npages = {526\u2013529},<br \/>\r\nkeywords = {},<br \/>\r\npubstate = {published},<br \/>\r\ntppubtype = {conference}<br \/>\r\n}<br \/>\r\n<\/pre><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('480','tp_bibtex')\">Close<\/a><\/p><\/div><div class=\"tp_links\" id=\"tp_links_480\" style=\"display:none;\"><div class=\"tp_links_entry\"><ul class=\"tp_pub_list\"><li><i class=\"fas fa-file-pdf\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Kon2006.pdf\" title=\"https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Kon2006.pd[...]\" target=\"_blank\">https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Kon2006.pd[...]<\/a><\/li><li><i class=\"ai ai-doi\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/dx.doi.org\/10 1109\/ISBI 2006 1624969\" title=\"Follow DOI:10 1109\/ISBI 2006 1624969\" target=\"_blank\">doi:10 1109\/ISBI 2006 1624969<\/a><\/li><\/ul><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('480','tp_links')\">Close<\/a><\/p><\/div><\/div><\/div><div class=\"tp_publication tp_publication_article\"><div class=\"tp_pub_info\"><p class=\"tp_pub_author\"> Jain, Ameet K.;  Kon, Ryan;  Zhou, Yu;  Fichtinger, Gabor<\/p><p class=\"tp_pub_title\"><a class=\"tp_title_link\" href=\"https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Jain2005c.pdf\" title=\"https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Jain2005c.pdf\" target=\"blank\">C-arm calibration-is it really necessary?<\/a> <span class=\"tp_pub_type tp_  article\">Journal Article<\/span> <\/p><p class=\"tp_pub_additional\"><span class=\"tp_pub_additional_in\">In: <\/span><span class=\"tp_pub_additional_journal\">Medical image computing and computer-assisted intervention (MICCAI), <\/span><span class=\"tp_pub_additional_volume\">vol. 8, <\/span><span class=\"tp_pub_additional_number\">no. Pt 1, <\/span><span class=\"tp_pub_additional_pages\">pp. 639\u2013646, <\/span><span class=\"tp_pub_additional_year\">2005<\/span>.<\/p><p class=\"tp_pub_menu\"><span class=\"tp_abstract_link\"><a id=\"tp_abstract_sh_507\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('507','tp_abstract')\" title=\"Show abstract\" style=\"cursor:pointer;\">Abstract<\/a><\/span> | <span class=\"tp_resource_link\"><a id=\"tp_links_sh_507\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('507','tp_links')\" title=\"Show links and resources\" style=\"cursor:pointer;\">Links<\/a><\/span> | <span class=\"tp_bibtex_link\"><a id=\"tp_bibtex_sh_507\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('507','tp_bibtex')\" title=\"Show BibTeX entry\" style=\"cursor:pointer;\">BibTeX<\/a><\/span><\/p><div class=\"tp_bibtex\" id=\"tp_bibtex_507\" style=\"display:none;\"><div class=\"tp_bibtex_entry\"><pre>@article{Jain2005,<br \/>\r\ntitle = {C-arm calibration-is it really necessary?},<br \/>\r\nauthor = {Ameet K. Jain and Ryan Kon and Yu Zhou and Gabor Fichtinger},<br \/>\r\nurl = {https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Jain2005c.pdf},<br \/>\r\nyear  = {2005},<br \/>\r\ndate = {2005-01-01},<br \/>\r\nurldate = {2005-01-01},<br \/>\r\njournal = {Medical image computing and computer-assisted intervention (MICCAI)},<br \/>\r\nvolume = {8},<br \/>\r\nnumber = {Pt 1},<br \/>\r\npages = {639\u2013646},<br \/>\r\nabstract = {&lt;p&gt;C-arm fluoroscopy is modelled as a perspective projection, the parameters of which are estimated through a calibration procedure It has been universally accepted that precise intra-procedural calibration is a prerequisite for accurate quantitative C-arm fluoroscopy guidance Calibration, however, significantly adds to system complexity, which is a major impediment to clinical practice We challenge the status quo by questioning the assumption that precise intra-procedural calibration is really necessary We derived theoretical bounds for the sensitivity of 3D measurements to mis-calibration Experimental results corroborated the theory in that mis-calibration in the focal spot by as much as 50 mm still allows for tracking with an accuracy of 0 5 mm in translation, 0 65 degrees in rotation, and such mis-calibration does not impose any additional error on the reconstruction of small objects&lt;\/p&gt;},<br \/>\r\nkeywords = {},<br \/>\r\npubstate = {published},<br \/>\r\ntppubtype = {article}<br \/>\r\n}<br \/>\r\n<\/pre><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('507','tp_bibtex')\">Close<\/a><\/p><\/div><div class=\"tp_abstract\" id=\"tp_abstract_507\" style=\"display:none;\"><div class=\"tp_abstract_entry\">&lt;p&gt;C-arm fluoroscopy is modelled as a perspective projection, the parameters of which are estimated through a calibration procedure It has been universally accepted that precise intra-procedural calibration is a prerequisite for accurate quantitative C-arm fluoroscopy guidance Calibration, however, significantly adds to system complexity, which is a major impediment to clinical practice We challenge the status quo by questioning the assumption that precise intra-procedural calibration is really necessary We derived theoretical bounds for the sensitivity of 3D measurements to mis-calibration Experimental results corroborated the theory in that mis-calibration in the focal spot by as much as 50 mm still allows for tracking with an accuracy of 0 5 mm in translation, 0 65 degrees in rotation, and such mis-calibration does not impose any additional error on the reconstruction of small objects&lt;\/p&gt;<\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('507','tp_abstract')\">Close<\/a><\/p><\/div><div class=\"tp_links\" id=\"tp_links_507\" style=\"display:none;\"><div class=\"tp_links_entry\"><ul class=\"tp_pub_list\"><li><i class=\"fas fa-file-pdf\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Jain2005c.pdf\" title=\"https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Jain2005c.[...]\" target=\"_blank\">https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Jain2005c.[...]<\/a><\/li><\/ul><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('507','tp_links')\">Close<\/a><\/p><\/div><\/div><\/div><div class=\"tp_publication tp_publication_conference\"><div class=\"tp_pub_info\"><p class=\"tp_pub_author\"> Kon, Ryan;  Leven, Joshua;  Kothapalli, Kishore;  Boctor, Emad;  Fichtinger, Gabor;  Hager, Gregory D.;  Taylor, Russell H.<\/p><p class=\"tp_pub_title\"><a class=\"tp_title_link\" href=\"https:\/\/dx.doi.org\/10 1117\/12 596929\" title=\"CIS-UltraCal: an open-source ultrasound calibration toolkit\" target=\"blank\">CIS-UltraCal: an open-source ultrasound calibration toolkit<\/a> <span class=\"tp_pub_type tp_  conference\">Conference<\/span> <\/p><p class=\"tp_pub_additional\"><span class=\"tp_pub_additional_booktitle\">Medical Imaging 2005: Ultrasonic Imaging and Signal Processing, <\/span><span class=\"tp_pub_additional_volume\">vol. 5750, <\/span><span class=\"tp_pub_additional_number\">no. 1, <\/span><span class=\"tp_pub_additional_organization\">SPIE <\/span><span class=\"tp_pub_additional_publisher\">SPIE, <\/span><span class=\"tp_pub_additional_year\">2005<\/span>.<\/p><p class=\"tp_pub_menu\"><span class=\"tp_resource_link\"><a id=\"tp_links_sh_508\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('508','tp_links')\" title=\"Show links and resources\" style=\"cursor:pointer;\">Links<\/a><\/span> | <span class=\"tp_bibtex_link\"><a id=\"tp_bibtex_sh_508\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('508','tp_bibtex')\" title=\"Show BibTeX entry\" style=\"cursor:pointer;\">BibTeX<\/a><\/span><\/p><div class=\"tp_bibtex\" id=\"tp_bibtex_508\" style=\"display:none;\"><div class=\"tp_bibtex_entry\"><pre>@conference{Kon2005,<br \/>\r\ntitle = {CIS-UltraCal: an open-source ultrasound calibration toolkit},<br \/>\r\nauthor = {Ryan Kon and Joshua Leven and Kishore Kothapalli and Emad Boctor and Gabor Fichtinger and Gregory D. Hager and Russell H. Taylor},<br \/>\r\nurl = {http:\/\/link aip org\/link\/?PSI\/5750\/516\/1<br \/>\r\nhttps:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Kon2005.pdf},<br \/>\r\ndoi = {10 1117\/12 596929},<br \/>\r\nyear  = {2005},<br \/>\r\ndate = {2005-01-01},<br \/>\r\nurldate = {2005-01-01},<br \/>\r\nbooktitle = {Medical Imaging 2005: Ultrasonic Imaging and Signal Processing},<br \/>\r\nvolume = {5750},<br \/>\r\nnumber = {1},<br \/>\r\npages = {516-523},<br \/>\r\npublisher = {SPIE},<br \/>\r\norganization = {SPIE},<br \/>\r\nkeywords = {},<br \/>\r\npubstate = {published},<br \/>\r\ntppubtype = {conference}<br \/>\r\n}<br \/>\r\n<\/pre><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('508','tp_bibtex')\">Close<\/a><\/p><\/div><div class=\"tp_links\" id=\"tp_links_508\" style=\"display:none;\"><div class=\"tp_links_entry\"><ul class=\"tp_pub_list\"><li><i class=\"fas fa-globe\"><\/i><a class=\"tp_pub_list\" href=\"http:\/\/link aip org\/link\/?PSI\/5750\/516\/1\" title=\"http:\/\/link aip org\/link\/?PSI\/5750\/516\/1\" target=\"_blank\">http:\/\/link aip org\/link\/?PSI\/5750\/516\/1<\/a><\/li><li><i class=\"fas fa-file-pdf\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Kon2005.pdf\" title=\"https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Kon2005.pd[...]\" target=\"_blank\">https:\/\/labs.cs.queensu.ca\/perklab\/wp-content\/uploads\/sites\/3\/2024\/02\/Kon2005.pd[...]<\/a><\/li><li><i class=\"ai ai-doi\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/dx.doi.org\/10 1117\/12 596929\" title=\"Follow DOI:10 1117\/12 596929\" target=\"_blank\">doi:10 1117\/12 596929<\/a><\/li><\/ul><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('508','tp_links')\">Close<\/a><\/p><\/div><\/div><\/div><div class=\"tp_publication tp_publication_article\"><div class=\"tp_pub_info\"><p class=\"tp_pub_author\"> Kon, Ryan;  Leven, Joshua;  Kothapalli, Kishore;  Boctor, Emad;  Fichtinger, Gabor;  Hager, Greg;  Taylor, Russell H<\/p><p class=\"tp_pub_title\"><a class=\"tp_title_link\" href=\"https:\/\/www.spiedigitallibrary.org\/conference-proceedings-of-spie\/5750\/0000\/CIS-UltraCal-an-open-source-ultrasound-calibration-toolkit\/10.1117\/12.596929.short\" title=\"https:\/\/www.spiedigitallibrary.org\/conference-proceedings-of-spie\/5750\/0000\/CIS-UltraCal-an-open-source-ultrasound-calibration-toolkit\/10.1117\/12.596929.short\" target=\"blank\">CIS-UltraCal: An open-source ultrasound calibration toolkit<\/a> <span class=\"tp_pub_type tp_  article\">Journal Article<\/span> <\/p><p class=\"tp_pub_additional\"><span class=\"tp_pub_additional_in\">In: <\/span><span class=\"tp_pub_additional_volume\">vol. 5750, <\/span><span class=\"tp_pub_additional_pages\">pp. 516-523, <\/span><span class=\"tp_pub_additional_year\">2005<\/span>.<\/p><p class=\"tp_pub_menu\"><span class=\"tp_abstract_link\"><a id=\"tp_abstract_sh_721\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('721','tp_abstract')\" title=\"Show abstract\" style=\"cursor:pointer;\">Abstract<\/a><\/span> | <span class=\"tp_resource_link\"><a id=\"tp_links_sh_721\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('721','tp_links')\" title=\"Show links and resources\" style=\"cursor:pointer;\">Links<\/a><\/span> | <span class=\"tp_bibtex_link\"><a id=\"tp_bibtex_sh_721\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('721','tp_bibtex')\" title=\"Show BibTeX entry\" style=\"cursor:pointer;\">BibTeX<\/a><\/span><\/p><div class=\"tp_bibtex\" id=\"tp_bibtex_721\" style=\"display:none;\"><div class=\"tp_bibtex_entry\"><pre>@article{fichtinger2005d,<br \/>\r\ntitle = {CIS-UltraCal: An open-source ultrasound calibration toolkit},<br \/>\r\nauthor = {Ryan Kon and Joshua Leven and Kishore Kothapalli and Emad Boctor and Gabor Fichtinger and Greg Hager and Russell H Taylor},<br \/>\r\nurl = {https:\/\/www.spiedigitallibrary.org\/conference-proceedings-of-spie\/5750\/0000\/CIS-UltraCal-an-open-source-ultrasound-calibration-toolkit\/10.1117\/12.596929.short},<br \/>\r\nyear  = {2005},<br \/>\r\ndate = {2005-01-01},<br \/>\r\nvolume = {5750},<br \/>\r\npages = {516-523},<br \/>\r\npublisher = {SPIE},<br \/>\r\nabstract = {We present an open-source MATLAB toolkit for ultrasound calibration. It has a convenient graphical user interface which sits on top of an extensive API. Calibration using three different phantoms is explicitly supported: the cross-wire phantom, the single-wall phantom, and the Hopkins phantom. Image processing of the Hopkins phantom is automated by making use of techniques from binary morphology, radon transform and RANSAC. Numerous calibration and termination parameters are exposed. It is also modular, allowing one to apply the system to original phantoms by writing a minimum of new code.},<br \/>\r\nkeywords = {},<br \/>\r\npubstate = {published},<br \/>\r\ntppubtype = {article}<br \/>\r\n}<br \/>\r\n<\/pre><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('721','tp_bibtex')\">Close<\/a><\/p><\/div><div class=\"tp_abstract\" id=\"tp_abstract_721\" style=\"display:none;\"><div class=\"tp_abstract_entry\">We present an open-source MATLAB toolkit for ultrasound calibration. It has a convenient graphical user interface which sits on top of an extensive API. Calibration using three different phantoms is explicitly supported: the cross-wire phantom, the single-wall phantom, and the Hopkins phantom. Image processing of the Hopkins phantom is automated by making use of techniques from binary morphology, radon transform and RANSAC. Numerous calibration and termination parameters are exposed. It is also modular, allowing one to apply the system to original phantoms by writing a minimum of new code.<\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('721','tp_abstract')\">Close<\/a><\/p><\/div><div class=\"tp_links\" id=\"tp_links_721\" style=\"display:none;\"><div class=\"tp_links_entry\"><ul class=\"tp_pub_list\"><li><i class=\"fas fa-globe\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/www.spiedigitallibrary.org\/conference-proceedings-of-spie\/5750\/0000\/CIS-UltraCal-an-open-source-ultrasound-calibration-toolkit\/10.1117\/12.596929.short\" title=\"https:\/\/www.spiedigitallibrary.org\/conference-proceedings-of-spie\/5750\/0000\/CIS-[...]\" target=\"_blank\">https:\/\/www.spiedigitallibrary.org\/conference-proceedings-of-spie\/5750\/0000\/CIS-[...]<\/a><\/li><\/ul><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('721','tp_links')\">Close<\/a><\/p><\/div><\/div><\/div><div class=\"tp_publication tp_publication_article\"><div class=\"tp_pub_info\"><p class=\"tp_pub_author\"> Jain, Ameet;  Kon, Ryan;  Zhou, Yu;  Fichtinger, Gabor<\/p><p class=\"tp_pub_title\"><a class=\"tp_title_link\" href=\"https:\/\/link.springer.com\/chapter\/10.1007\/11566465_79\" title=\"https:\/\/link.springer.com\/chapter\/10.1007\/11566465_79\" target=\"blank\">C-arm calibration\u2013is it really necessary?<\/a> <span class=\"tp_pub_type tp_  article\">Journal Article<\/span> <\/p><p class=\"tp_pub_additional\"><span class=\"tp_pub_additional_in\">In: <\/span><span class=\"tp_pub_additional_pages\">pp. 639-646, <\/span><span class=\"tp_pub_additional_year\">2005<\/span>.<\/p><p class=\"tp_pub_menu\"><span class=\"tp_abstract_link\"><a id=\"tp_abstract_sh_769\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('769','tp_abstract')\" title=\"Show abstract\" style=\"cursor:pointer;\">Abstract<\/a><\/span> | <span class=\"tp_resource_link\"><a id=\"tp_links_sh_769\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('769','tp_links')\" title=\"Show links and resources\" style=\"cursor:pointer;\">Links<\/a><\/span> | <span class=\"tp_bibtex_link\"><a id=\"tp_bibtex_sh_769\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('769','tp_bibtex')\" title=\"Show BibTeX entry\" style=\"cursor:pointer;\">BibTeX<\/a><\/span><\/p><div class=\"tp_bibtex\" id=\"tp_bibtex_769\" style=\"display:none;\"><div class=\"tp_bibtex_entry\"><pre>@article{fichtinger2005g,<br \/>\r\ntitle = {C-arm calibration\u2013is it really necessary?},<br \/>\r\nauthor = {Ameet Jain and Ryan Kon and Yu Zhou and Gabor Fichtinger},<br \/>\r\nurl = {https:\/\/link.springer.com\/chapter\/10.1007\/11566465_79},<br \/>\r\nyear  = {2005},<br \/>\r\ndate = {2005-01-01},<br \/>\r\npages = {639-646},<br \/>\r\npublisher = {Springer Berlin Heidelberg},<br \/>\r\nabstract = {C-arm fluoroscopy is modelled as a perspective projection, the parameters of which are estimated through a calibration procedure. It has been universally accepted that precise intra-procedural calibration is a prerequisite for accurate quantitative C-arm fluoroscopy guidance. Calibration, however, significantly adds to system complexity, which is a major impediment to clinical practice. We challenge the status quo by questioning the assumption that precise intra-procedural calibration is really necessary. We derived theoretical bounds for the sensitivity of 3D measurements to mis-calibration. Experimental results corroborated the theory in that mis-calibration in the focal spot by as much as 50 mm still allows for tracking with an accuracy of 0.5 mm in translation and 0.65 o in rotation, and such mis-calibration does not impose any additional error on the reconstruction of small objects.},<br \/>\r\nkeywords = {},<br \/>\r\npubstate = {published},<br \/>\r\ntppubtype = {article}<br \/>\r\n}<br \/>\r\n<\/pre><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('769','tp_bibtex')\">Close<\/a><\/p><\/div><div class=\"tp_abstract\" id=\"tp_abstract_769\" style=\"display:none;\"><div class=\"tp_abstract_entry\">C-arm fluoroscopy is modelled as a perspective projection, the parameters of which are estimated through a calibration procedure. It has been universally accepted that precise intra-procedural calibration is a prerequisite for accurate quantitative C-arm fluoroscopy guidance. Calibration, however, significantly adds to system complexity, which is a major impediment to clinical practice. We challenge the status quo by questioning the assumption that precise intra-procedural calibration is really necessary. We derived theoretical bounds for the sensitivity of 3D measurements to mis-calibration. Experimental results corroborated the theory in that mis-calibration in the focal spot by as much as 50 mm still allows for tracking with an accuracy of 0.5 mm in translation and 0.65 o in rotation, and such mis-calibration does not impose any additional error on the reconstruction of small objects.<\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('769','tp_abstract')\">Close<\/a><\/p><\/div><div class=\"tp_links\" id=\"tp_links_769\" style=\"display:none;\"><div class=\"tp_links_entry\"><ul class=\"tp_pub_list\"><li><i class=\"fas fa-globe\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/link.springer.com\/chapter\/10.1007\/11566465_79\" title=\"https:\/\/link.springer.com\/chapter\/10.1007\/11566465_79\" target=\"_blank\">https:\/\/link.springer.com\/chapter\/10.1007\/11566465_79<\/a><\/li><\/ul><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('769','tp_links')\">Close<\/a><\/p><\/div><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-2401","qsc_member","type-qsc_member","status-publish","hentry"],"acf":[],"spectra_custom_meta":{"field_qsc_member_acf_email":[""],"_field_qsc_member_acf_email":["qsc_member_acf_email"],"qsc_member_acf_position":["Masters Student"],"_qsc_member_acf_position":["field_qsc_member_acf_position"],"qsc_member_acf_department":[""],"_qsc_member_acf_department":["field_qsc_member_acf_department"],"field_qsc_member_acf_organization":["Johns Hopkins University"],"_field_qsc_member_acf_organization":["qsc_member_acf_organization"],"field_qsc_member_acf_linkedin":[""],"_field_qsc_member_acf_linkedin":["qsc_member_acf_linkedin"],"field_qsc_member_acf_gscholar":[""],"_field_qsc_member_acf_gscholar":["qsc_member_acf_gscholar"],"field_qsc_member_acf_github":[""],"_field_qsc_member_acf_github":["qsc_member_acf_github"],"field_qsc_member_acf_researchgate":[""],"_field_qsc_member_acf_researchgate":["qsc_member_acf_researchgate"],"field_qsc_member_acf_web":[""],"_field_qsc_member_acf_web":["qsc_member_acf_web"],"field_qsc_member_acf_program_status":["Past"],"_field_qsc_member_acf_program_status":["qsc_member_acf_program_status"],"field_qsc_member_acf_start_year":["2005"],"_field_qsc_member_acf_start_year":["qsc_member_acf_start_year"],"field_qsc_member_acf_end_year":[""],"_field_qsc_member_acf_end_year":["qsc_member_acf_end_year"],"_uag_css_file_name":["uag-css-2401.css"],"_uag_page_assets":["a:9:{s:3:\"css\";s:263:\".uag-blocks-common-selector{z-index:var(--z-index-desktop) !important}@media (max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media (max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) !important}}\n\";s:2:\"js\";s:0:\"\";s:18:\"current_block_list\";a:7:{i:0;s:11:\"core\/search\";i:1;s:10:\"core\/group\";i:2;s:12:\"core\/heading\";i:3;s:17:\"core\/latest-posts\";i:4;s:20:\"core\/latest-comments\";i:5;s:13:\"core\/archives\";i:6;s:15:\"core\/categories\";}s:8:\"uag_flag\";b:0;s:11:\"uag_version\";s:10:\"1771033544\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"]},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false},"uagb_author_info":{"display_name":"Doug Martin","author_link":"https:\/\/labs.cs.queensu.ca\/perklab\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"Ryan Kon Masters Student Johns Hopkins University Member from 2005 to present Kon, Ryan; Jain, Ameet K.; Fichtinger, GaborHidden seed reconstruction from C-arm images in brachytherapy Conference Procedings 3rd IEEE International Symposium on Biomedical Imaging: Nano to Macro, 2006.Links | BibTeX@conference{Kon2006, title = {Hidden seed reconstruction from C-arm images in brachytherapy}, author = {Ryan Kon&hellip;","_links":{"self":[{"href":"https:\/\/labs.cs.queensu.ca\/perklab\/wp-json\/wp\/v2\/qsc_member\/2401","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/labs.cs.queensu.ca\/perklab\/wp-json\/wp\/v2\/qsc_member"}],"about":[{"href":"https:\/\/labs.cs.queensu.ca\/perklab\/wp-json\/wp\/v2\/types\/qsc_member"}],"version-history":[{"count":0,"href":"https:\/\/labs.cs.queensu.ca\/perklab\/wp-json\/wp\/v2\/qsc_member\/2401\/revisions"}],"wp:attachment":[{"href":"https:\/\/labs.cs.queensu.ca\/perklab\/wp-json\/wp\/v2\/media?parent=2401"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}