DYNAMIC FOCUS SYSTEM AND METHODS
A method for dynamic focusing is presented that can be performed by a dynamic focusing controller that can receive images from the image capture device, and for each image, determine a border of the particle within the image, and calculate a pixel intensity ratio of the image based on the border of...
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| creator | LU JIULIU WANDERS BART J RILEY JOHN GOOD KEN QIAN BIAN |
| description | A method for dynamic focusing is presented that can be performed by a dynamic focusing controller that can receive images from the image capture device, and for each image, determine a border of the particle within the image, and calculate a pixel intensity ratio of the image based on the border of the particle. The dynamic focusing controller can also calculate a median pixel intensity ratio fromthe pixel intensity ratios for each image, determine a focal distance direction based on the median pixel intensity ratio, calculate a focal distance based on the median pixel intensity ratio when the focal distance direction is positive, and calculate the focal distance based on a median border width when the focal distance direction is negative. The autofocusing controller can then send an instruction to the focusing mechanism to adjust the image capture device by the focal distance in the focal distance direction.
本公开提出了一种用于动态聚焦的方法，所述方法可由动态聚焦控制器来执行，所述动态聚焦控制器可从所述图像捕获装置接收图像，并且对于每个图像，确定所述图像内所述粒子的边界，并且基于所述粒子的所述边界计算所述图 |
| format | Patent |
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本公开提出了一种用于动态聚焦的方法，所述方法可由动态聚焦控制器来执行，所述动态聚焦控制器可从所述图像捕获装置接收图像，并且对于每个图像，确定所述图像内所述粒子的边界，并且基于所述粒子的所述边界计算所述图</description><language>chi ; eng</language><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS ; TESTING</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190604&DB=EPODOC&CC=CN&NR=109844494A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190604&DB=EPODOC&CC=CN&NR=109844494A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LU JIULIU</creatorcontrib><creatorcontrib>WANDERS BART J</creatorcontrib><creatorcontrib>RILEY JOHN</creatorcontrib><creatorcontrib>GOOD KEN</creatorcontrib><creatorcontrib>QIAN BIAN</creatorcontrib><title>DYNAMIC FOCUS SYSTEM AND METHODS</title><description>A method for dynamic focusing is presented that can be performed by a dynamic focusing controller that can receive images from the image capture device, and for each image, determine a border of the particle within the image, and calculate a pixel intensity ratio of the image based on the border of the particle. The dynamic focusing controller can also calculate a median pixel intensity ratio fromthe pixel intensity ratios for each image, determine a focal distance direction based on the median pixel intensity ratio, calculate a focal distance based on the median pixel intensity ratio when the focal distance direction is positive, and calculate the focal distance based on a median border width when the focal distance direction is negative. The autofocusing controller can then send an instruction to the focusing mechanism to adjust the image capture device by the focal distance in the focal distance direction.
本公开提出了一种用于动态聚焦的方法，所述方法可由动态聚焦控制器来执行，所述动态聚焦控制器可从所述图像捕获装置接收图像，并且对于每个图像，确定所述图像内所述粒子的边界，并且基于所述粒子的所述边界计算所述图</description><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>MEASURING</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFBwifRz9PV0VnDzdw4NVgiODA5x9VVw9HNR8HUN8fB3CeZhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfHOfoYGlhYmJiaWJo7GxKgBAPK4Ie4</recordid><startdate>20190604</startdate><enddate>20190604</enddate><creator>LU JIULIU</creator><creator>WANDERS BART J</creator><creator>RILEY JOHN</creator><creator>GOOD KEN</creator><creator>QIAN BIAN</creator><scope>EVB</scope></search><sort><creationdate>20190604</creationdate><title>DYNAMIC FOCUS SYSTEM AND METHODS</title><author>LU JIULIU ; WANDERS BART J ; RILEY JOHN ; GOOD KEN ; QIAN BIAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN109844494A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2019</creationdate><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>MEASURING</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>LU JIULIU</creatorcontrib><creatorcontrib>WANDERS BART J</creatorcontrib><creatorcontrib>RILEY JOHN</creatorcontrib><creatorcontrib>GOOD KEN</creatorcontrib><creatorcontrib>QIAN BIAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LU JIULIU</au><au>WANDERS BART J</au><au>RILEY JOHN</au><au>GOOD KEN</au><au>QIAN BIAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DYNAMIC FOCUS SYSTEM AND METHODS</title><date>2019-06-04</date><risdate>2019</risdate><abstract>A method for dynamic focusing is presented that can be performed by a dynamic focusing controller that can receive images from the image capture device, and for each image, determine a border of the particle within the image, and calculate a pixel intensity ratio of the image based on the border of the particle. The dynamic focusing controller can also calculate a median pixel intensity ratio fromthe pixel intensity ratios for each image, determine a focal distance direction based on the median pixel intensity ratio, calculate a focal distance based on the median pixel intensity ratio when the focal distance direction is positive, and calculate the focal distance based on a median border width when the focal distance direction is negative. The autofocusing controller can then send an instruction to the focusing mechanism to adjust the image capture device by the focal distance in the focal distance direction.
本公开提出了一种用于动态聚焦的方法，所述方法可由动态聚焦控制器来执行，所述动态聚焦控制器可从所述图像捕获装置接收图像，并且对于每个图像，确定所述图像内所述粒子的边界，并且基于所述粒子的所述边界计算所述图</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TESTING |
| title | DYNAMIC FOCUS SYSTEM AND METHODS |
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