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Terminology

• * SNR1s is a proprietary index tailored to quantitatively evaluate prototype quality at low illuminance, which Sony has developed specifically for CMOS image sensors for security applications. See What'southward SNR1s? for more details.
• ** HDR (Loftier Dynamic Range) is a characteristic that uses finer chromatic gradation for paradigm rendering to depict more details in the over- and under-exposed regions that occur in the same image. See "Loftier Dynamic Range (HDR) Feature" to acquire about the difference betwixt DOL HDR and Clear HDR.
• *** NIR stands for the capacity to capture images in the nigh infrared spectrum. This feature realizes image capturing fifty-fifty in a pitch-nighttime location by the utilise of near-infrared light. Sony offers NIR imaging in all of the models beneath, meeting the needs in diverse applications. Furthermore, NIR engineering science has recently seen remarkable improvement. The identifier "NIR Enhanced (Yeah)" indicates that the product is mounted with the enhanced version of NIR functionality. For more descriptions about NIR, run across "Imaging Functioning in the Well-nigh-infrared (NIR) Spectrum".

SNR1s

What's SNR1s ?

Sony is introducing SNR1s [sixty] as an index used to quantitatively evaluate picture quality at depression illumination. SNR1s [lx] is a proprietary index advocated by Sony, and is express to CMOS epitome sensors for security camera applications.
A smaller value indicates better motion-picture show quality at low illumination.
SNR1s [lx] is an acronym consisting of "SNR" (Point-to-Dissonance Ratio), "i" (represents that the signal level when racket = 1 is one), and "due south" (for Security).

SNR1s [threescore] Prescribed Conditions
Application	Security Camera
Low-cal Source	3200 [One thousand]
Target Object	18% Gray
F number	1.4
Exposure time	ane/60 [s]
Linear Matrix	without
Signal	G [eastward-] (Sensor Raw Output)
Noise
Signal : Racket	1 : 1

Schematic of SNR1s Measurement Method

• Figure 1 shows a schematic of SNR1s measurement.
  Ii 3200 [1000] calorie-free sources illuminate an 18% grey chart from dissimilar directions, and dimming is performed to 100 [sixty]. A camera is placed so that the distance from the gray chart to the imaging surface of the image sensor is i m, the sensitivity [eastward-] and nighttime noise [e-] are measured, and SNR1s [lx] is calculated using the relational equation (ane). The luminance when equation (i) equals ane is SNR1s [lx].
  For further details, contact your local Sony'south sales visitor.

  

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SNR1s Values of CMOS Prototype Sensors for Security Applications

Source: https://www.sony-semicon.co.jp/e/products/IS/security/product.html

Posted by: jeffriesdiveture.blogspot.com

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