Super Low Light Surveillance Guide

By: IPVM Team, Published on Aug 01, 2017

At the beginning of this decade, low light performance of megapixel cameras was generally terrible.

This was the era of super slow shutter where 'ghosting' was a common tradeoff of brighter low light images.

Now, a lot has changed.

The rise of integrated IR is certainly one major improvement with literally most camera models offering their own IR 'lamps' built-in.

Another major increase is the rise of what is often called 'super low light' - achieving superior low light video without depending on IR.

In this guide, we explain super low light covering:

  • Enhances in image processing / gain control
  • 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

** *** ********* ** this ******, *** ***** performance ** ********* ******* was ********* ********.

**** *** *** *** of ***** **** ******* where '********' *** * common ******** ** ******** low ***** ******.

***, * *** *** changed.

*** **** ** ********** IR ** ********* *** major *********** **** ********* most ****** ****** ******** their *** ** '*****' built-in.

******* ***** ******** ** the **** ** **** is ***** ****** '***** low *****' - ********* superior *** ***** ***** without ********* ** **.

** **** *****, ** explain ***** *** ***** covering:

  • ******** ** ***** ********** / **** *******
  • ********* ** ******* **** larger *******
  • ************ ** ************ *********** sensors ** ******** *******
  • ***** ******* ******** ** conventional *******, ********** ** and ******* *******

[***************]

Enhance ***** ********** / **** *******

* *********** ******* ** most '*****' *** ***** cameras ** ************ ** superior ***** ********** / gain *******.

**** ** * *********** feature ** ************ ******* generally, ******** ** ***** that ***** ********* ** completely **** ** **** an *****, **** ** noisy. **** ******* ******* / *** for ***** ************ *****, ***** ** * demonstration ** ******** ********* gain ******* ** * camera:

**** ******* ***** *** such ****** ********** *** cameras *** ********* ********* to ************* (*** * in ***) ******* **** to *** ******* ****** the ****** *** ******* when *** ***** ******* especially **** ** *** light ************.

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

Expansion ** ******* **** ****** *******

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

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

******** ** ~*/*" ** super *** ***** ******* include:

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

Photography ****** *******

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

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

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

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

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

*** ****, ******** ******* with *********** ******* **** to ** * ** 10x **** ********* **** their '******' ****** **** counterparts. ***** *********** ******-***** security ******* ********* **** in *** ********* ** dollars (**** ~$*,*** *** frequent) *** *** **** even **** ********* ** the **** ****, ***** tend ** ** ******** of ******* *** *** be ********* *** *** quality ******.

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.

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

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

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

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

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

Options ********* / ********* *****

* ***** ** ***** low ***** ******* *****. For *** *********** ****** category, **** * *** manufacturers ***** ****, ********* the ******** *** ****** (see*** ******** ** *** test), ******* / ***** **** camera (*** **** *******)*** ******* **** ****** (*** test *******).

*** ************ ******* (~*/*"), many ************* ***** ***** low *****, ********* ** utilizing ******* ****** *******, though ***** ***** *******, low ***** *********** *********** do *****. ***** ************* tend ** *** ********* marketing *****, *.*.**** ***********,******** ************,***** *********,********* ***********,***** *********, ***.

Comments (6)

**** ******* *****. ******.

***,

******** ** *** **** "******** ** ************ ********" ***** *** to * **** ****** **** *******:

"**** ****** *** *** **** *********. ***** **** *****."

******** ** *** **** "******** ** ************ ********"

**** *** **** *****, ******. **** ******

********** ** ***** ****** ******.

***** *** ******* ******. ***** ***.....

**** *** ******* ****** *** **** *** ******** ** ******* to *** *** ********** ****.

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