{"id":10850,"date":"2022-10-02T01:25:57","date_gmt":"2022-10-02T01:25:57","guid":{"rendered":"https:\/\/www.szlaser.com\/?page_id=10850"},"modified":"2022-10-02T01:38:56","modified_gmt":"2022-10-02T01:38:56","slug":"applications-of-machine-vision","status":"publish","type":"page","link":"https:\/\/www.szlaser.com\/index.php\/wiki\/applications-of-machine-vision\/","title":{"rendered":"Applications of Machine vision"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1331.2px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-one\"><h1 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:32;line-height:1.3;\"><h1>Applications of Machine vision<\/h1><\/h1><\/div><div class=\"fusion-text fusion-text-1\"><p>Machine vision is a very wide area, encompassing practically any system that uses a camera and processing unit to perform an inspection or measurement task. The hardware is typically off-the-shelf components (e.g., telecentric camera) with potentially custom software written to control the devices. The systems help automate processes, speed up manufacturing, and increase yield by replacing a task done by a human that can fatigue and make mistakes.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-three\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:24;line-height:1.3;\"><h3>Surface defect inspection<\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-2\"><p>Machine vision systems have become widely used in production environments for their automation of an operator\u2019s manual inspection process. Such systems can be used to quantify the geometric dimensions of mechanical features [12].<\/p>\n<p>More recently, machine vision has been applied to the assessment of optical surface quality (scratch dig), typically a task performed by an expert operator.<\/p>\n<p>The automation of surface quality inspection affords a repeatable and\u00a0standardized assessment at the cost of single-purpose systems that may not catch all defects. A further method to increase the dynamic range of such an inspection technique makes use of sub-aperture stitching, resolving finer details but requiring multiple images.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-text fusion-title-size-three\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:24;line-height:1.3;\"><h3>Alignment using photogrammetry<\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-3\"><p>Photogrammetry is a technique that makes use of calibrated camera and test targets in order to perform dimensional metrology and has been applied to the alignment of the James Webb Space Telescope (JWST) hardware in a vacuum environment. Careful assessment and simulations of the photogrammetry system showed that uncertainties on the order of 0.1 mm were possible, and were achieved during testing, demonstrating this technology for the use of coarse alignment of large-scale optical components and opto-mechanical structures.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-4 fusion-sep-none fusion-title-text fusion-title-size-three\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:24;line-height:1.3;\"><h3>Practical tips<\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-4\"><p>Machine vision cameras require careful calibration prior to operation for accurate results, which can be cumbersome due to the software and device firmware communication. Machine vision is also a robust and large field, and there are a great variety of calibration methods that have been discovered, allowing for calibration with standards, without standards, and simply via motion of the camera itself in some known and repeatable way. For custom-built machine vision systems, the reader is strongly encouraged to do thorough reading on calibration methods.<\/p>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10852\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/10\/working-schematic-of-Machine-vision-600x442.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/10\/working-schematic-of-Machine-vision-600x442.png\" alt=\"\" width=\"600\" height=\"442\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27442%27%20viewBox%3D%270%200%20600%20442%27%3E%3Crect%20width%3D%27600%27%20height%3D%27442%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/10\/working-schematic-of-Machine-vision-200x147.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/10\/working-schematic-of-Machine-vision-300x221.png 300w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/10\/working-schematic-of-Machine-vision-400x294.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/10\/working-schematic-of-Machine-vision-600x442.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/10\/working-schematic-of-Machine-vision-768x565.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/10\/working-schematic-of-Machine-vision-800x589.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/10\/working-schematic-of-Machine-vision.png 978w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<\/div><div style=\"text-align:right;\"><a class=\"fusion-button button-flat fusion-button-default-size button-default fusion-button-default button-1 fusion-button-default-span fusion-button-default-type\" target=\"_self\" href=\"https:\/\/www.szlaser.com\/index.php\/wiki\/application-of-structured-light-projection\/\"><span class=\"fusion-button-text awb-button__text awb-button__text--default\">Application of Structured light projection &gt;<\/span><\/a><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":7,"featured_media":0,"parent":8230,"menu_order":140,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-10850","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v18.7 (Yoast SEO v25.8) - 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