{"id":1845,"date":"2013-09-05T22:44:40","date_gmt":"2013-09-05T20:44:40","guid":{"rendered":"https:\/\/www.adimec.com\/23-vs-12-vs-13-full-hd-image-sensor-size-for-global-security-applications\/"},"modified":"2024-03-15T13:08:29","modified_gmt":"2024-03-15T12:08:29","slug":"2-3-vs-1-2-vs-1-3-full-hd-image-sensor-size-for-global-security-applications","status":"publish","type":"post","link":"https:\/\/www.adimec.com\/2-3-vs-1-2-vs-1-3-full-hd-image-sensor-size-for-global-security-applications\/","title":{"rendered":"2\/3\u201d vs. 1\/2\u201d vs. 1\/3\u201d Full-HD image sensor size for high-end global security applications"},"content":{"rendered":"
\n

In theory, bigger pixels on full-HD CCD image sensors are better for global security applications because they are more sensitive for improved low light performance.\u00a0 The drawback is that bigger optics are required so size, weight, power, and cost (SWaP-C<\/a>) requirements are challenged.\u00a0 As many systems are upgrading from standard definition to full-HD cameras or adding HD daylight cameras for full motion video<\/a>, the question is how to find the optimal balance.<\/p>\n

<\/p>\n

The pixel size is of course correlated with the image sensor size:<\/p>\n

\"Adimec<\/a><\/p>\n

Figure 1:\u00a0 Pixel Dimension vs. image sensor size for full-HD<\/strong><\/p>\n

High-end applications, such as long range targeting or in very low light, which are moving to full-HD resolution will still require 2\/3\u201d sensors.\u00a0 Over the last few years, there have been dramatic improvements in Qe and read noise<\/a> of image sensors to make 1\/2\u201d full-HD sensors with the sensitivity required for many applications.\u00a0 In parallel with the sensor improvements, there have been many developments in 1\/2\u201d long focal range optics and zoom optics as a necessary complement.<\/p>\n

For upgrades, this provides the option to use the same optical format, but have more pixels and more sensitivity.\u00a0 This can be a cost-effective approach although new optics are still required.<\/p>\n

Not all of the 1\/2\u201d optics available meet the full MTF<\/a> so the camera provides a better image quality than the lens.\u00a0 The resulting image might not have the sharpness required by high-end applications.\u00a0 The optics are getting better and better though.<\/p>\n

To use smaller and even lower cost optics, it is attractive to go below the 1\/2\u201d sensor size, for instance 1\/3\u201d CCD image sensors.\u00a0 Not only does the image sensor performance go down, but the available optics quality also decreases.<\/p>\n

1\/3\u201d CMOS<\/a> image sensors can offer good low light performance, but\u00a01\/3\u201d CMOS sensors utilize a rolling shutter<\/a> as compared to global shutter available in CCD and larger CMOS image sensors.\u00a0 Currently rolling shutter is not well received in the industrial and military applications as a blurring effect occurs with movement.\u00a0 Global shutter CMOS is more complex and will take further development to shrink for smaller pixels.<\/p>\n

For now, 1\/2\u201d image sensors provide a sweet spot for many global security applications with acceptable sensitivity and the ability to use small, low cost optics.\u00a0 As I mentioned, for more demanding applications, 2\/3\u201d image sensors may be required.<\/p>\n

\"HD<\/a><\/p>\n

Figure 2:\u00a0 Summary of the benefits of different full HD sensor sizes<\/strong><\/p>\n

In the near future 1\/3\u201d full-HD image sensors may become more interesting as the optics are improved to allow for additional reductions in SWaP-C.\u00a0 Further testing may show that rolling shutter is acceptable in outdoor, moving applications with higher frame rates, such as 100 fps, so that the blurring effect is not evident.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

In theory, bigger pixels on full-HD CCD image sensors are better for global security applications because they are more sensitive for improved low light performance.\u00a0 The drawback is that bigger optics are required so size, weight, power, and cost (SWaP-C) requirements are challenged.\u00a0 As many systems are upgrading from standard definition to full-HD cameras or…<\/p>\n","protected":false},"author":39,"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":"","_links_to":"","_links_to_target":""},"categories":[398,378],"tags":[296,374],"yoast_head":"\n2\/3\u201d vs. 1\/2\u201d vs. 1\/3\u201d Full-HD image sensor size for high-end global security applications - Adimec<\/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.adimec.com\/2-3-vs-1-2-vs-1-3-full-hd-image-sensor-size-for-global-security-applications\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2\/3\u201d vs. 1\/2\u201d vs. 1\/3\u201d Full-HD image sensor size for high-end global security applications - Adimec\" \/>\n<meta property=\"og:description\" content=\"In theory, bigger pixels on full-HD CCD image sensors are better for global security applications because they are more sensitive for improved low light performance.\u00a0 The drawback is that bigger optics are required so size, weight, power, and cost (SWaP-C) requirements are challenged.\u00a0 As many systems are upgrading from standard definition to full-HD cameras or…\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.adimec.com\/2-3-vs-1-2-vs-1-3-full-hd-image-sensor-size-for-global-security-applications\/\" \/>\n<meta property=\"og:site_name\" content=\"Adimec\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/AdimecAIS\/\" \/>\n<meta property=\"article:published_time\" content=\"2013-09-05T20:44:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-15T12:08:29+00:00\" \/>\n<meta name=\"author\" content=\"Adimec\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@adimec\" \/>\n<meta name=\"twitter:site\" content=\"@adimec\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Adimec\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.adimec.com\/2-3-vs-1-2-vs-1-3-full-hd-image-sensor-size-for-global-security-applications\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.adimec.com\/2-3-vs-1-2-vs-1-3-full-hd-image-sensor-size-for-global-security-applications\/\"},\"author\":{\"name\":\"Adimec\",\"@id\":\"https:\/\/www.adimec.com\/#\/schema\/person\/8089f2b3e33c1b51738a32bdca4096e2\"},\"headline\":\"2\/3\u201d vs. 1\/2\u201d vs. 1\/3\u201d Full-HD image sensor size for high-end global security applications\",\"datePublished\":\"2013-09-05T20:44:40+00:00\",\"dateModified\":\"2024-03-15T12:08:29+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.adimec.com\/2-3-vs-1-2-vs-1-3-full-hd-image-sensor-size-for-global-security-applications\/\"},\"wordCount\":452,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.adimec.com\/#organization\"},\"keywords\":[\"CCD vs CMOS\",\"Blog\"],\"articleSection\":[\"Global security applications\",\"Blogs\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.adimec.com\/2-3-vs-1-2-vs-1-3-full-hd-image-sensor-size-for-global-security-applications\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.adimec.com\/2-3-vs-1-2-vs-1-3-full-hd-image-sensor-size-for-global-security-applications\/\",\"url\":\"https:\/\/www.adimec.com\/2-3-vs-1-2-vs-1-3-full-hd-image-sensor-size-for-global-security-applications\/\",\"name\":\"2\/3\u201d vs. 1\/2\u201d vs. 1\/3\u201d Full-HD image sensor size for high-end global security applications - 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