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USB3 Vision Logo. USB3 Vision [1] is an interface standard introduced in 2013 for industrial cameras. [2] It describes a specification on top of the USB standard, with a particular focus on supporting high-performance cameras based on USB 3.0. [3] It is recognized as one of the fastest growing machine vision camera standards. [4]
A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.
Three Part (Carbonless) – Three sheets are printed on one 105 gsm paper and the other two are printed on 60-70 gsm paper on A4 sheets. The bottom of the first sheet, the top and bottom of the second sheet, and the top of the third sheet are chemically treated so that the impression of the first sheet comes on the second and third sheets.
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The commonly used Ishihara test is used to detect mainly congenital red-green color blindness, but its usefulness is limited in detecting acquired color vision deficiencies. [3] But City University test contains test plates that can be used to detect all types of color vision deficiencies. [4] The TCU test was derived from Farnsworth D15 color ...
Near visual acuity or near vision is a measure of how clearly a person can see nearby small objects or letters.Visual acuity in general usually refers clarity of distance vision, and is measured using eye charts like Snellen chart, LogMAR chart etc. Near vision is usually measured and recorded using a printed hand-held card containing different sized paragraphs, words, letters or symbols.
The RK2918 is compatible with Android Froyo (2.2), Gingerbread (2.3), HoneyComb (3.x) and Ice Cream Sandwich (4.0). [13] Unofficial support for Ubuntu and other Linux flavours exists. As of 2013, it was targeted at E-readers. [14] The RK2906 is basically a cost-reduced version of the RK2918, also targeted at E-readers as of 2013. [14]