{"id":551932,"date":"2023-02-14T23:57:29","date_gmt":"2023-02-14T20:57:29","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/avoiding-collisions-with-a-new-method-learned-from-mariners\/"},"modified":"2023-02-14T23:57:29","modified_gmt":"2023-02-14T20:57:29","slug":"avoiding-collisions-with-a-new-method-learned-from-mariners","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/avoiding-collisions-with-a-new-method-learned-from-mariners\/","title":{"rendered":"#Avoiding collisions with a new method learned from mariners"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a29d71a9654b\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a29d71a9654b\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/avoiding-collisions-with-a-new-method-learned-from-mariners\/#%E2%80%9CAvoiding_collisions_with_a_new_method_learned_from_mariners%E2%80%9D\" >&#8220;Avoiding collisions with a new method learned from mariners&#8221;<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/avoiding-collisions-with-a-new-method-learned-from-mariners\/#Airspace_and_road_traffic_60_measurements_a_second_for_greater_safety\" >Airspace and road traffic: 60 measurements a second for greater safety<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/buradabiliyorum.com\/en\/avoiding-collisions-with-a-new-method-learned-from-mariners\/#Two-dimensional_images_as_a_foundation_Similar_to_the_constant_bearing_approach_at_sea\" >Two-dimensional images as a foundation: Similar to the constant bearing approach at sea<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/buradabiliyorum.com\/en\/avoiding-collisions-with-a-new-method-learned-from-mariners\/#Paradigm_shift_Time_to_interaction_replaces_metric_state_analysis\" >Paradigm shift: Time to interaction replaces metric state analysis<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9CAvoiding_collisions_with_a_new_method_learned_from_mariners%E2%80%9D\"><\/span>&#8220;Avoiding collisions with a new method learned from mariners&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2023\/collision.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/collision.jpg\" data-sub-html=\"Credit: Pixabay\/CC0 Public Domain\">\n<figure class=\"article-img\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2023\/collision.jpg\" alt=\"collision\" title=\"Credit: Pixabay\/CC0 Public Domain\" width=\"800\" height=\"400\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                Credit: Pixabay\/CC0 Public Domain<br \/>\n            <\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>Preventing accidents by computing impending collisions of drones or cars: that is the goal of Darius Burschka. The professor at the Technical University of Munich (TUM) tracks every point in images generated by cameras carried by flying drones or cars on the road. In principle he <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>lies the &#8220;constant bearing&#8221; technique traditionally used by navigators at sea.<\/p>\n<p>The compound eye of a wasp gave Prof. Burschka an idea. By moving its body back and forth, the insect detects which objects are nearby and which ones are further away. In this way it builds a mental map as it flies.\n<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Airspace_and_road_traffic_60_measurements_a_second_for_greater_safety\"><\/span>Airspace and road traffic: 60 measurements a second for greater safety<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A similar principle is applied in a solution with which Prof. Burschka, the Co-Head of the Perception Group at the Munich Institute of Robotics and Machine Intelligence (MIRMI) of TUM, tries to identify impending collisions of drones or cars with other objects. His computer system checks the image points from a camera 60 times per second and determines the &#8220;collision conditions.&#8221;<\/p>\n<p>&#8220;We track up to a million pixels of an image in real time,&#8221; says Burschka. To compute this &#8220;optical flow,&#8221; he does not need a supercomputer. Instead, he works with a &#8220;mere&#8221; high-performance graphic processor that handles the images, another process to calculate the collision paths, and a camera. The researcher explains, &#8220;We look at the detectable characteristics in the image and watch how they move across it.&#8221;\n<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Two-dimensional_images_as_a_foundation_Similar_to_the_constant_bearing_approach_at_sea\"><\/span>Two-dimensional images as a foundation: Similar to the constant bearing approach at sea<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To calculate the im<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/social-mediaa\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Social Media\" target=\"_blank\" rel=\"noopener\">media<\/a>te danger of a collision, the TUM professor only needs two-dimensional images from a perspective like the one used by the wasp to fix individual points and perceive changes in them\u2014or like a sailor applying the constant bearing method. With that method, a ship is determined to be on a collision course if the absolute bearing between approaching ships shows little or no change as the distance decreases. &#8220;The best way of detecting a potential collision is to keep an eye on which surrounding objects are not moving,&#8221; says Burschka.<\/p>\n<p>The TUM scientist calculates where and in which direction objects fly past the camera, i.e. &#8220;penetrate the observational plane.&#8221; In conventional applications, autonomous driving experts, for example, use several cameras to compute distances to nearby objects using vectors. &#8220;When the objects are far away from the camera, the 3D process is no longer reliable,&#8221; explains Burschka. Changes in positions of points from one image to the next can no longer be seen.\n<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Paradigm_shift_Time_to_interaction_replaces_metric_state_analysis\"><\/span>Paradigm shift: Time to interaction replaces metric state analysis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>With the new method, rapidly approaching objects still remote from the observer are recognized as more dangerous than others that are closer but moving in the same direction. &#8220;Instead of moving objects being prioritized by their motion alone, this is done on the basis of dynamic collision conditions,&#8221; says Prof. Burschka.<\/p>\n<p>All &#8220;features&#8221; in the image are now under observation and the potentially dangerous ones can be flagged accordingly. &#8220;We measure the &#8216;time to interaction&#8217;\u2014in other words, the time that will elapse before a collision occurs,&#8221; he explains. The new method will enable scientists to analyze the paths of moving objects with just one camera, which will also be in motion.<\/p>\n<p>&#8220;Unlike metric reconstruction, this approach is much cheaper and more robust,&#8221; Prof. Burschka says. The &#8220;time to interaction&#8221; approach would thus represent a paradigm shift in research. The professor plans to use his invention in drones, networked vehicles and service robotics.\n                                                                                                                            <\/p>\n<div class=\"article-main__more p-4\">\n<p><strong>More information:<\/strong><br \/>\n                                                Ee Heng Chen et al, Estimating Dense Optical Flow of Objects for Autonomous Vehicles, <i>2021 IEEE Intelligent Vehicles Symposium (IV)<\/i> (2021).  <a rel=\"nofollow noopener\" target=\"_blank\" data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.1109\/IV48863.2021.9575471\">DOI: 10.1109\/IV48863.2021.9575471<\/a><\/p>\n<p>Darius Burschka, Task Representation in Robots for Robust Coupling of Perception to Action in Dynamic Scenes, <i>Robotics Research<\/i> (2019).  <a rel=\"nofollow noopener\" target=\"_blank\" data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.1007\/978-3-030-28619-4_4\">DOI: 10.1007\/978-3-030-28619-4_4<\/a><\/p>\n<\/div>\n<div class=\"d-inline-block text-medium my-4\">\n                                                Provided by<br \/>\n                                                                                                    Technical University Munich<br \/>\n                                                                                                        <a rel=\"nofollow noopener\" target=\"_blank\" class=\"icon_open\" href=\"http:\/\/www.tum.de\/\"><br \/>\n                                                        <svg><use href=\"https:\/\/techx.b-cdn.net\/tmpl\/v2\/img\/svg\/sprite.svg#icon_open\" x=\"0\" y=\"0\"\/><\/svg><\/a><\/p><\/div>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>\n                                                <strong>Citation<\/strong>:<br \/>\n                                                Avoiding collisions with a new method learned from mariners (2023, February 14)<br \/>\n                                                retrieved 14 February 2023<br \/>\n                                                from https:\/\/techxplore.com\/<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>\/2023-02-collisions-method-mariners.html<\/p>\n<p>                                            This document is subject to copyright. 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The professor at the Technical University of Munich (TUM) tracks every point in images generated by cameras carried by flying drones or cars on the&#8230;<\/p>\n","protected":false},"author":1,"featured_media":551933,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/collision.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-551932","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/551932","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=551932"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/551932\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/551933"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=551932"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=551932"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=551932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}