{"id":1950,"date":"2017-10-13T22:45:01","date_gmt":"2017-10-13T20:45:01","guid":{"rendered":"https:\/\/www.adimec.com\/measurement-of-machine-vision-image-sensorcamera-parameters\/"},"modified":"2018-07-30T11:48:42","modified_gmt":"2018-07-30T09:48:42","slug":"measurement-of-machine-vision-image-sensorcamera-parameters","status":"publish","type":"post","link":"https:\/\/www.adimec.com\/ja\/measurement-of-machine-vision-image-sensorcamera-parameters\/","title":{"rendered":"Measurement of Machine Vision Image Sensor\/Camera Parameters"},"content":{"rendered":"<div class=\"hs-migrated-cms-post\">\n<p>Characterizing the image sensor\/deciding on the image sensor is an important first step in camera selection for a machine vision application, but it is not a simple task.\u00a0 There are some courses such as the one highlighted below that can offer excellent training and support.\u00a0 You can also contact <a title=\"Adimec \" href=\"https:\/\/www.adimec.com\/\" target=\"_blank\" rel=\"noopener\">Adimec <\/a>for information as we have thoroughly evaluated image sensors we use in our cameras as well as many we don\u2019t.\u00a0 <a title=\"Check out our white paper on comparing different cameras when you have selected a desired image sensor.\" href=\"https:\/\/www.adimec.com\/machine-vision-camera-comparison-epaper-landing-page\/\" target=\"_blank\" rel=\"noopener\">Check out our white paper on comparing different cameras when you have selected a desired image sensor.<\/a><\/p>\n<p><!--more--><\/p>\n<p>Instructor <a href=\"http:\/\/www.harvestimaging.com\/index.php?id=1\">Albert Theuwissen<\/a>:\u00a0 <a title=\"http:\/\/www.cei.se\/instructors\/theuwissen,-albert-jp-.aspx\" href=\"https:\/\/www.cei.se\/instructor-profile-albert-j-p-theuwissen\" target=\"_blank\" rel=\"noopener\">http:\/\/www.cei.se\/instructors\/theuwissen,-albert-jp-.aspx<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><b>Course Name:\u00a0 Hands-on Characterization of Solid-State Image Sensors<\/b><\/p>\n<p><a title=\"http:\/\/www.cei.se\/find-your-course\/telecommunications\/digital-imaging,-speech-and-signal-processing\/c04-hands-on-characterization-of-solid-state-image-sensors.aspx\" href=\"https:\/\/www.cei.se\/course-004-hands-on-characterization-of-solid-state-image-sensors.html\" target=\"_blank\" rel=\"noopener\">http:\/\/www.cei.se\/find-your-course\/telecommunications\/digital-imaging,-speech-and-signal-processing\/c04-hands-on-characterization-of-solid-state-image-sensors.aspx<\/a><\/p>\n<p><b>Course Description:<\/b><\/p>\n<p><b>Measurements in Dark<\/b><br \/>\nIt is astonishing how many parameters of a sensor\/camera that can be measured without any light input. The photodiodes of the image sensors are collecting charges and in principle it does not matter whether these charges are being generated by photons or whether they come through leakage in the structure. Once a charge packet is collected in a photodiode, it can be used to characterize the imager!<br \/>\nBy means of dedicated dark measurements the following parameters can be evaluated:<\/p>\n<ul>\n<li>Dark Current Density<\/li>\n<li>Dark-current Non-uniformities<\/li>\n<li>Linearity<\/li>\n<li>Conversion Gain<\/li>\n<li>Dark Reference Lines\/Pixels<\/li>\n<li>Leaking Pixels<\/li>\n<li>Temporal Noise<\/li>\n<li>Dynamic Range<\/li>\n<\/ul>\n<p><b>Measurements with Light<\/b><br \/>\nImage sensors and cameras are being developed to convert incoming photons into a measurable quantity. Therefore, it is also of great importance to evaluate the light characteristics of the devices. Parameters that can be measured when photons are impinging on the sensor are:<\/p>\n<ul>\n<li>Light sensitivity<\/li>\n<li>Light non-uniformities<\/li>\n<li>Linearity<\/li>\n<li>Conversion gain<\/li>\n<li>Blooming characteristics<\/li>\n<li>Black sun<\/li>\n<li>Green-green differences<\/li>\n<li>Reciprocity effect<\/li>\n<li>Saturation level<\/li>\n<\/ul>\n<p>Different participant subgroups will work on different set-ups, not necessarily performing the same measurements. However, at the end of the course, everyone will get copies of the outcome of all characterizations performed by the groups.<\/p>\n<p><a href=\"https:\/\/www.adimec.com\/machine-vision-camera-comparison-epaper-landing-page\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" id=\"img-1320311869411\" src=\"\/\/cdn2.hubspot.net\/hub\/20421\/file-13402917-png\/images\/how-to-compare-cameras1.png\" alt=\"describe the image\" border=\"0\" \/><\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Characterizing the image sensor\/deciding on the image sensor is an important first step in camera selection fo&hellip;<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1950","post","type-post","status-publish","format-standard","hentry","category-uncategorized","category-1","description-off"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - 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