{"id":5376,"date":"2026-09-29T17:05:33","date_gmt":"2026-09-29T21:05:33","guid":{"rendered":"https:\/\/www.1stvision.com\/machine-vision-solutions\/?p=5376"},"modified":"2026-09-29T17:05:35","modified_gmt":"2026-09-29T21:05:35","slug":"how-to-be-successful-in-line-scan-applications","status":"publish","type":"post","link":"https:\/\/www.1stvision.com\/machine-vision-solutions\/2026\/09\/how-to-be-successful-in-line-scan-applications.html","title":{"rendered":"How to be successful in line scan applications"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><em>&#8220;A line scan system is only as good as its weakest component&#8221;<\/em><\/h2>\n\n\n\n<p>Granted, any system is only as good as its weakest component.  But with some systems one can cut corners here or there and get away with it.  With line scan mostly not.  But the rewards of getting it right can deliver effective applications with excellent return on investment.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"712\" height=\"573\" src=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/LineScanSystemsCollage.jpg\" alt=\"\" class=\"wp-image-5393\" srcset=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/LineScanSystemsCollage.jpg 712w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/LineScanSystemsCollage-300x241.jpg 300w\" sizes=\"auto, (max-width: 712px) 100vw, 712px\" \/><figcaption class=\"wp-element-caption\">Some key line scan systems components &#8211; Photo credits clockwise from top left: Kowa, JAI, Shutterstock, Teledyne DALSA.<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Success depends upon balancing all of the following:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Camera&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lens&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lighting&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Motion system&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Encoder&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mechanical stability&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Image processing&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>Below we&#8217;ll look at each of these in turn.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Camera (and the sensor it contains)<\/h2>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"402\" height=\"493\" src=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/TeledyneDALSAlinescan.jpg\" alt=\"\" class=\"wp-image-5383 size-full\" srcset=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/TeledyneDALSAlinescan.jpg 402w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/TeledyneDALSAlinescan-245x300.jpg 245w\" sizes=\"auto, (max-width: 402px) 100vw, 402px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p>One selects a line scan camera containing typically &#8220;one narrow row&#8221; of pixels.  The row&#8217;s length is chosen to correspond to the width of the thing you are inspecting.  The other dimension for the 2D application comes via the motion of the object past the camera &#8211; or vice versa.<\/p>\n\n\n\n<p><em>Left: A representative line scan camera &#8211; Courtesy Teledyne DALSA<\/em><\/p>\n<\/div><\/div>\n\n\n\n<p>The &#8220;narrow row&#8221; may be 1, 2, or sometimes 3 or 4 pixels deep.  A single pixel row offers the lowest cost, and can be sufficient for some applications.  Adding a second or third pixel row, typically offset or staggered with respect to the adjacent row, offers improved resolution.<\/p>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<p>Line scan cameras may be monochrome or color in the visible (VIS) range.  Or SWIR in the infrared portion of the spectrum.  Or blended VIS-SWIR.<\/p>\n\n\n\n<p><em>Right: Representative line scan camera front and back sides &#8211; Courtesy JAI.<\/em><\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"432\" height=\"237\" src=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/JAI-line-scan.jpg\" alt=\"\" class=\"wp-image-5384 size-full\" srcset=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/JAI-line-scan.jpg 432w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/JAI-line-scan-300x165.jpg 300w\" sizes=\"auto, (max-width: 432px) 100vw, 432px\" \/><\/figure><\/div>\n\n\n\n<p>There are several <a href=\"https:\/\/www.1stvision.com\/cameras\/bytype\/Line-Scan-cameras?siq_name=$[FNAME]$$[LNAME]$&amp;siq_email=$[EMAIL]$\" target=\"_blank\" rel=\"noreferrer noopener\">tens of line scan cameras<\/a> from which to choose.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Lens<\/h2>\n\n\n\n<p>The lens focuses the target object onto your camera&#8217;s sensor, so the photons are captured in the pixel well and digitized for subsequent interpretation.  Don&#8217;t cut corners on the lens.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"622\" height=\"631\" src=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/KOWAlensesLineScan.jpg\" alt=\"\" class=\"wp-image-5385 size-full\" srcset=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/KOWAlensesLineScan.jpg 622w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/KOWAlensesLineScan-296x300.jpg 296w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/KOWAlensesLineScan-100x100.jpg 100w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p>Certain lenses are optimized for line scan applications. You may or may not need that. Call us at 978-474-0044 <a class=\"gv-tel-link\" title=\"Call +1 978-474-0044 via Google Voice\" href=\"http:\/\/voice.google.com\/calls?a=nc,%2B19784740044\" target=\"_blank\" rel=\"noopener\"><\/a>so we can help you make a good choice.<\/p>\n\n\n\n<p><em>Left: LF high-resolution large-format machine vision lenses&nbsp;&#8211; Courtesy KOWA.<\/em><\/p>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Lighting<\/h2>\n\n\n\n<p>Successful image processing depends on sufficient contrast to differentiate amongst details.   While the sensor and the lens are critical, so too is lighting.  In fact good lighting can sometimes permit using a &#8220;lesser&#8221; sensor or lens.  Or achieving ambitious outcomes otherwise not possible without attention to lighting.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/www.1stvision.com\/knowledgebase?siq_name=$[FNAME]$$[LNAME]$&amp;siq_email=$[EMAIL]$\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"661\" height=\"672\" src=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/KBlighting.jpg\" alt=\"\" class=\"wp-image-5389 size-full\" srcset=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/KBlighting.jpg 661w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/KBlighting-295x300.jpg 295w\" sizes=\"auto, (max-width: 661px) 100vw, 661px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>See our Knowledge Base <a href=\"https:\/\/www.1stvision.com\/knowledgebase?siq_name=$[FNAME]$$[LNAME]$&amp;siq_email=$[EMAIL]$\" target=\"_blank\" rel=\"noreferrer noopener\">Techbriefs on lighting<\/a>.  Each may be downloaded for free.<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Motion system<\/h2>\n\n\n\n<p>As noted above in the camera segment, the other dimension for the 2D application comes via the motion of the object past the camera &#8211; or vice versa.  This is the key aspect of line scan systems &#8211; there&#8217;s a never ending dimension in the direction of motion, and each image is a time-slice from that continuous movement.<\/p>\n\n\n\n<p>One can move the &#8220;product&#8221; along a conveyer belt, &#8220;web&#8221; of spooled paper, etc., while holding the line scan camera and lighting fixed.  Or one can move the line scan camera across the product, as with a flatbed scanner.<\/p>\n\n\n\n<p>Ideally the motion should be continuous speed &#8211; or if variable use an encoder (see below).  Capable of long use without a lot of frequent re-calibration beyond scheduled service maintenance.  And with little variability in the third dimension &#8211; unless of course your application is a blend of line scan and height profiling, such as <a href=\"https:\/\/www.1stvision.com\/cameras\/Automation-Technology-3D-sensors-thermal-cameras?siq_name=$[FNAME]$$[LNAME]$&amp;siq_email=$[EMAIL]$\" target=\"_blank\" rel=\"noreferrer noopener\">laser profiling<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Encoder<\/h2>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<p>For variable speed product motion, e.g. conveyor belt with non-uniform speed during imaging, an encoder converts the rotary motion of a gear or transport wheel into electrical signals correlated to the speed of rotation.<\/p>\n\n\n\n<p>Those signals can drive the shutter trigger on the camera.<\/p>\n\n\n\n<p><em>Image royalty free &#8211; Courtesy Shutterstock.<\/em><\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"409\" height=\"297\" src=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/EncoderShutterstockCOMroyaltyFREE.jpg\" alt=\"\" class=\"wp-image-5391 size-full\" srcset=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/EncoderShutterstockCOMroyaltyFREE.jpg 409w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/EncoderShutterstockCOMroyaltyFREE-300x218.jpg 300w\" sizes=\"auto, (max-width: 409px) 100vw, 409px\" \/><\/figure><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Bonus blurb &#8211; calculating line rate<\/h2>\n\n\n\n<p>Related to how to make the whole system come together&#8230; and certainly tied to the motion system and encoder segments above, see our blog from some months ago on <a href=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/2025\/02\/how-to-calculate-line-rate-on-a-line-scan-camera-based-on-conveyor-speed.html?siq_name=$[FNAME]$$[LNAME]$&amp;siq_email=$[EMAIL]$\" target=\"_blank\" rel=\"noreferrer noopener\">how to calculate line rate based on conveyor speed<\/a>.   That blog includes a downloadable spreadsheet with labeled fields and examples&#8230; and embedded formulas.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Mechanical stability<\/h2>\n\n\n\n<p>There&#8217;s no obvious graphic to show for this one, but one doesn&#8217;t have to be a mechanical or an optical engineer to get the point.  Unplanned motion is highly undesirable, as all those lens and sensor choices are based upon a stable environment.   <\/p>\n\n\n\n<p>Sure, motion in one dimension is a given with line scan, but fast shutter takes care of that.  But &#8220;wiggle&#8221; in the dimension of the pixel line, or height variability of the product being inspected &#8211; or of the line scan camera itself, introduce blur and uncertainty.  Or the need to compensate for it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Image processing<\/h2>\n\n\n\n<p>Machine vision is all about letting software interpret the image, adding value through speed, accuracy, tirelessness, and consistency.  From camera configuration and control through image processing, you have a <a href=\"https:\/\/www.1stvision.com\/Software?siq_name=$[FNAME]$$[LNAME]$&amp;siq_email=$[EMAIL]$\" target=\"_blank\" rel=\"noreferrer noopener\">range of options<\/a>.<\/p>\n\n\n\n<p>There are camera manufacturer SDKs, third party software, and open source choices.  And OS options including Windows, Linux, and various embedded systems platforms.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"595\" height=\"381\" src=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/SaperaSoftwareTeledyne.jpg\" alt=\"\" class=\"wp-image-5387\" srcset=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/SaperaSoftwareTeledyne.jpg 595w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/SaperaSoftwareTeledyne-300x192.jpg 300w\" sizes=\"auto, (max-width: 595px) 100vw, 595px\" \/><figcaption class=\"wp-element-caption\">Sapera LT SDK windows &#8211; Courtesy Teledyne DALSA<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/www.1stvision.com\/contactForm?siq_name=$[FNAME]$$[LNAME]$&amp;siq_email=$[EMAIL]$\" target=\"_blank\" rel=\"noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/07\/1st-vision-contact-us-generic-1024x512.png\" alt=\"\" class=\"wp-image-5283\" srcset=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/07\/1st-vision-contact-us-generic-1024x512.png 1024w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/07\/1st-vision-contact-us-generic-300x150.png 300w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/07\/1st-vision-contact-us-generic-768x384.png 768w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/07\/1st-vision-contact-us-generic-1536x768.png 1536w, https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/07\/1st-vision-contact-us-generic.png 1773w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/figure>\n<\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><a href=\"https:\/\/www.1stvision.com\/?siq_name=$%5bFNAME%5d$%20$%5bLNAME%5d$&amp;siq_email=$%5bEMAIL%5d$\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>1st Vision\u2019s<\/strong><\/a>&nbsp;sales engineers have over 100 years of combined experience to assist in your camera and components selection.&nbsp; With a large portfolio of&nbsp;<a href=\"https:\/\/www.1stvision.com\/cameras\/industrialCameras?siq_name=$[FNAME]$$[LNAME]$&amp;siq_email=$[EMAIL]$\" target=\"_blank\" rel=\"noreferrer noopener\">cameras<\/a>,&nbsp;<a href=\"https:\/\/www.1stvision.com\/lens\/machine-vision-lenses?siq_name=$%5bFNAME%5d$%20$%5bLNAME%5d$&amp;siq_email=$%5bEMAIL%5d$\" target=\"_blank\" rel=\"noreferrer noopener\">lenses<\/a>,&nbsp;<a href=\"https:\/\/www.1stvision.com\/cameras\/accessories\/Data-cables?siq_name=$%5bFNAME%5d$%20$%5bLNAME%5d$&amp;siq_email=$%5bEMAIL%5d$\" target=\"_blank\" rel=\"noreferrer noopener\">cables<\/a>,&nbsp;<a href=\"https:\/\/www.1stvision.com\/cameras\/accessories\/NIC-cards?siq_name=$%5bFNAME%5d$%20$%5bLNAME%5d$&amp;siq_email=$%5bEMAIL%5d$\" target=\"_blank\" rel=\"noreferrer noopener\">NIC cards<\/a>&nbsp;and&nbsp;<a href=\"https:\/\/www.1stvision.com\/1stvision-industrial-computer-systems\/embedded-industrial-computer?siq_name=$%5bFNAME%5d$%20$%5bLNAME%5d$&amp;siq_email=$%5bEMAIL%5d$\" target=\"_blank\" rel=\"noreferrer noopener\">industrial computers<\/a>, we can provide a&nbsp;<a href=\"https:\/\/www.1stvision.com\/components-needed-for-machine-vision-and-industrial-imaging-systems?siq_name=$%5bFNAME%5d$%20$%5bLNAME%5d$&amp;siq_email=$%5bEMAIL%5d$\" target=\"_blank\" rel=\"noreferrer noopener\">full vision solution<\/a>!<\/p>\n\n\n\n<p><strong><u>About you:<\/u><\/strong>&nbsp;We want to hear from you!&nbsp; We\u2019ve built our brand on our know-how and like to educate the marketplace on imaging technology topics\u2026&nbsp; What would you like to hear about?\u2026 Drop a line to info@1stvision.com with what topics you\u2019d like to know more about.<\/p>\n\n\n\n<p>#linescan<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;A line scan system is only as good as its weakest component&#8221; Granted, any system is only as good as its weakest component. But with some systems one can cut corners here or there and get away with it. With line scan mostly not. But the rewards of getting it right can deliver effective applications &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/2026\/09\/how-to-be-successful-in-line-scan-applications.html\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;How to be successful in line scan applications&#8221;<\/span><\/a><\/p>\n","protected":false},"author":10,"featured_media":5393,"comment_status":"closed","ping_status":"closed","sticky":true,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[8,155],"tags":[],"class_list":["post-5376","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cameras","category-line-scan"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to be successful in line scan applications<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/2026\/09\/how-to-be-successful-in-line-scan-applications.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to be successful in line scan applications\" \/>\n<meta property=\"og:description\" content=\"&#8220;A line scan system is only as good as its weakest component&#8221; Granted, any system is only as good as its weakest component. 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But the rewards of getting it right can deliver effective applications &hellip; Continue reading &quot;How to be successful in line scan applications&quot;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/2026\/09\/how-to-be-successful-in-line-scan-applications.html\" \/>\n<meta property=\"og:site_name\" content=\"1stVision Inc. - Machine Vision Articles\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pages\/1st-Vision\/944658058935262?fref=ts\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-29T21:05:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-29T21:05:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.1stvision.com\/machine-vision-solutions\/wp-content\/uploads\/2026\/09\/LineScanSystemsCollage.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"712\" \/>\n\t<meta property=\"og:image:height\" content=\"573\" \/>\n\t<meta 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