{"id":2610,"date":"2023-02-23T11:18:14","date_gmt":"2023-02-23T05:48:14","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=2610"},"modified":"2025-03-25T22:51:25","modified_gmt":"2025-03-25T17:21:25","slug":"what-is-a-neuromorphic-camera","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/what-is-a-neuromorphic-camera\/","title":{"rendered":"What is a Neuromorphic camera?"},"content":{"rendered":"<h2>About Neuromorphic camera:<\/h2>\n<ul>\n<li>A neuromorphic camera <strong>mimics the way the human retina converts light into electrical impulses.<\/strong><\/li>\n<\/ul>\n<h3>How does it work?<\/h3>\n<ol>\n<li>In a <strong>typical camera<\/strong>, <strong>each pixel captures the intensity of light falling on it for the entire exposure time<\/strong> the camera focuses on the object. <strong>All these pixels are pooled together<\/strong> to reconstruct an image of the object.<\/li>\n<li><strong>In neuromorphic cameras<\/strong>, <strong>each pixel operates independently and asynchronously<\/strong>, <strong>generating events or spikes only when there is a change in the intensity of light<\/strong> falling on that pixel.<\/li>\n<li><strong>This generates sparse and lower amounts of data<\/strong> compared to traditional cameras, which capture every pixel value at a fixed rate, regardless of whether there is any change in the scene.<\/li>\n<li>This <strong>allows a neuromorphic camera to &#8220;sample&#8221; the environment with much higher temporal resolution<\/strong> because <strong>it is not limited by a frame rate<\/strong> like normal cameras and also <strong>performs background suppression.<\/strong><\/li>\n<\/ol>\n<ul>\n<li>Neuromorphic cameras <strong>have a very high dynamic range ( &gt;120 dB)<\/strong> which means they can be used in different conditions ranging<\/li>\n<li>from a very low-light environment to very high-light conditions.\u00a0<\/li>\n<\/ul>\n<h3>\u00a0What is meant by diffraction limit in Optical Microscopy?<\/h3>\n<ul>\n<li>The <strong>resolution of a microscope is proportional to the size of its objective<\/strong> and <strong>inversely proportional to the wavelength of light<\/strong> being observed.<\/li>\n<li>In 1873 the <strong>German physicist Ernst Abbe<\/strong> discovered how <strong>microscopes were limited by the diffraction of light.<\/strong> He revealed that the <strong>resolution of a microscope<\/strong> <strong>is<\/strong> not <strong>controlled<\/strong> by the instrument\u2019s quality but <strong>by the wavelength of light used and the aperture of its optics.<\/strong><\/li>\n<li>Due to this phenomenon, a<strong> microscope cannot resolve two objects located closer than \u03bb\/2NA, <\/strong>where \u03bb is the wavelength of light and NA is the numerical aperture of the imaging lens. <strong>This is known as the diffraction limit.<\/strong><\/li>\n<li>Thus <strong>diffraction limits the ability of the microscope to distinguish between two objects divided by a lateral distance of less than half the wavelength of light<\/strong> used to image the sample.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3>Q1) What is meant by temporal resolution?<\/h3>\n<p>Temporal resolution is the time to take the multiple measurements of the cross-section and then reconstruct the image. This time is important for process tomography systems, as changes can often occur within the system in a space of time that is shorter than the one required to record the measurements.<\/p>\n<p><strong>Source:<\/strong>\u00a0<a href=\"https:\/\/www.business-standard.com\/article\/current-affairs\/in-new-study-iisc-researchers-show-how-neuromorphic-camera-machine-learning-aid-nanoscopic-imaging-123022101152_1.html\" target=\"_blank\" rel=\"nofollow noopener\"><u>IISc shows how neuromorphic camera, machine learning aid nanoscopic imaging<\/u><\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A neuromorphic camera mimics the way the human retina converts light into electrical impulses.<\/p>\n","protected":false},"author":5,"featured_media":2611,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-2610","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/2610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=2610"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/2610\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/2611"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=2610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=2610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=2610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}