Super Low Light Surveillance Guide

By IPVM Team, Published Aug 01, 2017, 03:10pm EDT

Historically, low light performance of megapixel cameras was terrible, with super slow shutter 'ghosting' a common tradeoff for brighter low light images.

But the introduction of 'super low light' image processing changed this, with drastic increases in camera low light performance not previously possible.

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In this guide, we explain super low light covering:

  • Enhancements in image processing / gain control
  • Advanced digital noise reduction
  • Expansion of cameras with larger imagers
  • Introduction of professional photography sensors to security cameras
  • Image quality relative to conventional cameras, integrated IR and thermal cameras

Super *** ***** ******

** ************, '***** *** light' *** ** *** definition, *** ** ******* used ** ***** ** cameras ***** ******* ******** low ***** ***********, ********** images ** *** ***** levels ***** '*******' ******* cannot, ***** ** *****. Exact ********** **** ** super *** ***** ****** vary, *** ********* **** into *** **********: ******** gain ******* *** ******** digital ***** *********.

Enhanced **** *******

*** ***** *********** ******* of **** ***** *** light ******* ** ************ is ******** ***** ********** / **** *******. **** is * *********** ******* of *** ************ *******, allowing ** ***** **** would ********* ** ********** dark ** ** *******, at *** ******* ** increased ***** *** ****** bitrates.

*** *******, **** ******* ******* / *** for ***** ************ *****, ***** ** * demonstration ** ******** ********* gain ******* ** * camera, **** *** ******* moderately ******* ** ****** gain ******, *** ****** undetectable **** **** ** low:

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'*****' *** ***** ******* use **** / ***** processing **** '*******' *** light ******* *** *** more ************* **** ******* and ********* ***** ********* techniques.

Improved ******* ***** *********

*** ****** ********* **** in ***** *** ***** cameras ** ******** ******* noise ********* (***). **** automatic **** *******, *** is **** ** *********** all ************ *******. *******, many ***** *** ***** models *** **** **** of *********** ***, ***** automatically ******* ***** ** activity ** *** *****.

*** *******, ** *** image *****, *** ****** automatically ******* *** ****** on *** ******* ****** through *** *****. **** avoids ********* ****** **** caused ** **** *** levels, *** **** **** visible *****, **** ****** the *******.

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*** **** ******* ** DNR *** ******* ******, see ********* *** (******* ***** Reduction) *****.

Marketing *****

**** ************* ***** ***** low ***** ****** ** of ****, *** ***** is ** ******* ******** for **** *********** '***** low *****' ***********, *** classification ** **** ** to *** ************. ******* of ****,*********** *********** *** ** drastic.

******* ** **** **** of *********, ********* ***** are ***** *** **** way ** *********** ***** low ***** ****** **** standard *******. ************ ***** vary, *********, *** *** limited **:

~1/3" ******* **** ******

***** *** ***** ******* are **** ******** ******* with '************' ****** *****, in *** ***** ** 1/3" (** */*.*", */*.*", etc.) *** **** ******** imagers / ****** **********. While *** ****** **** may ** *** **** as ***** *** '*****' low ***** *****, *** imagers (*** ********* *** SOC / ********) *** better ** ********** *** image *** ********** **** details ** *** *****.

Larger ******* ***** ********

** *** **** *** years, ** ********, ******* that ******* ******** ***** processing********* ******* **** **** introduced ** *** ******. Instead ** */*" *******, these ******* *** ~*/*" imagers (********* **** ******* resolutions, ** ******** **** often *****). ****** *******, everything **** *****, **** allow **** ***** ** capture / '***' **** light *** ********* ****** deliver ******* ** **** conditions.

** ** *****, *** all ****** ****** ******* are ***** *** *****. With ***, *** / 4K *** ****** ***********, 1/2" ******* ** **** larger *** ******** **** common *** **** ** not ******* '*****' *** light. *** ******** ** imager **** ** ****** by *** ******** ** the ****** ** ******. As * ****** ** practice, ********* ****** ********** cameras (*** ** ******) deliver ************* ***** ***** performance. ****, ** ******, will ****** ****** **** time, **** **** ***** cameras **** **** ********* poor ** *** *****.

Super ***** ****** *******

** ********* ** *** statement ***** ****** ********** cameras *** ********** ***** low ***** *** ******* that *** *********** *******. Security *******, ****** ************ photography ****, **** ** use *** ******* ****** sizes. *** **** *** reasons *** ********** **** and **** ** ******** cameras *** *** ********** lenses. *** ******** ** smaller ****** **** **** greater ********** ******** *** light ******.

** ******* ** *** size ************ ** ***** below ** * *** security *******, *** **** a **** ****** ******* for *********** *** **** for ********, *** ******* with * */*.*" ******, which ** ***** ****** large *** ******** *******:

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******** ******* **** *********** sensors ********* ******* *** best ***** *** ***** performance.

*** **** ********* ** that, **** ***** *********** cousins, **** **** ** be **** ***** *** far **** *********. ***** is ** **** ********** between * **** ******** camera *** * ************ minidome, ******* **** **** difference:

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*** ******* **** ***** installation **** *********, ******** an ******** ******* *** outdoor *** *** ***** the ****** *** **** conspicuous **** ************ *****.

*** ****, ******** ******* with *********** ******* **** to ** * ** 10x **** ********* **** their '******' ****** **** counterparts. ***** *********** ******-***** security ******* ********* **** for ********* ** ******* (with ~$*,***-**,*** *** ******) and *** **** **** more ********* ** *** lens ****, ***** **** to ** ** ***** hundreds ** ******* *** can ** ********* *** top ******* ******.

Image ******* **********

*** ****** ***** **** general *********** ** ***** quality ******* ***** ********** of ******. **** **** these ****** **** ***** from ********* ***** ** different *****, *** *** are ***** ** ~*.***, ranging **** ~**-** ***.

*****, * ************ (***-***** low *****) ***** ***** only ******* ********** ** the *******'* ****, **** his **** ******** **** the ********** ****** **********. By ********, *** */*" super *** ***** ***** clearly ***** *** ******* against *** **********, ****** detection ******, ***** *** 1/2" ***** *** ***** camera ***** ***** ****** details *** ******** *********** and **** ****** ********* not ******* ** ***** models.

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Super *** ***** ******** ** *******

******** ** *** */*" super *** ***** *****, the ****** **** * 35mm ************ ****** ***** color ***********, **** ****** detail, *** **** **** detection. ***** *** ******* can ** **** ** green, *** *** *******'* clothing ** *****/****, *** possible ** *** */*" model. ** ********, *** thermal ****** ***** **** of ***** *******, *** the ******* ** **** easy ** ****** ** even **** ****** ** a *** ***** ****** against *** **** **********.

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Integrated ** *********

*** **** ****** ********** to ***** *** ***** models ** ********** **, as ***** ************ ******** image ******* *** **** low ****, ********** **** low ***** **********.

** **** *****, ********** IR ******** **** ******* than ***** *** *****. For *******, *** *******'* clothing *** ******** *** be **** ** *** comparison *****. *******, ******* from *** *******, ***** integrated ** ****** ** drop ***, ******* ********* by *** ******* *** more *******.

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*******, **** **** *********** of ********** ** ******* varies ******, ********* ** range, ******** *******, *** more. *** **** ******* on ********** ** ******, see ***** ************ *****.

Super *** ***** ******

** *** *** *********** varies ***** ***** *** light *******, **** *** tested ****** ** *******, culminating ** ******** *** ***** **** Camera ********, *********:

Comments (6)

Much helpful guide. Thanks.

Agree: 1
Disagree
Informative
Unhelpful
Funny

FYI,

Clicking on the link "Infrared IR Surveillance Tutorial" takes you to a page giving this message:

"This report has not been published. Check back later."

 

Agree
Disagree
Informative
Unhelpful
Funny

Clicking on the link "Infrared IR Surveillance Tutorial" 

This has been fixed, thanks. Link is here

Agree
Disagree
Informative
Unhelpful
Funny

Integrated IR image seemed better.

Agree
Disagree
Informative
Unhelpful
Funny

Great and helpful guides. Thank you.....

Agree
Disagree
Informative
Unhelpful
Funny

They are getting better but will the customer be willing to pay the additional cost.

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