Pixels Determine Potential, Not Quality

Author: John Honovich, Published on Oct 20, 2013

The most damaging misconception in surveillance is that pixels = resolution = quality. In fact, pixels determine potential quality, limited by many other important factors. In this note, we explain why you will make much clearer and better decisions recognizing this.

Demonstrating This With Images

****'* * ********** **** *******, **** '**********' *****:

**'* *** ****** **** ****** * ***** **** ** * - * ****, ********** * **** ~******.

*** ******** **** **** **** *** *******, *** ********** *****:

**** ** * ****** **** *** * ***** ** ** pixels ******** *** **** ***** **** ** *** ***** ***** (enlarged ** *** *** *** **). **** ** ******* *** quality.

***? *** ****** *** ***** ****** ** ***** ***** ***** than *** ******* *******. *** *** *** ** *** ********** of *** *****. ***** ****** *** *** ****** ** *** pixel.

*** ***** ***** *** * ** *** ** ********* *** *** **** *** ****** **** *** *** ********** pixels.

*** ***'* ******** *** ****** / ********** *** **** *****.

* *** **** ******* *** ***** ******** ***, ** *** number ** ****** ********* **** ** ***** ** ****** **** ***** *** *** ***** * ******* ****.

***'* ******* *** *** ****** ** *** *** ******* ** the ***** *******:

** *** ****** *****, *** **** **** ****** **** *** pixels *** ********* ***** *** ** ********. *******, ** *** latter ***, **** ****** ***** ** **** ******* **** ** individual ***, ****** *** **** ** ** ******** ** *** black ****.

***'* ******** *** ****** *** **** *****, **** *** ** 240:

** **** ***** ****** * ******* ****, **** ******** ******** to ****** - ****, ****, ***. *** *** **** ****** more ******** (********, ****, ***.).

*******, ****'* * ******* ******* **** ** ** **** ****** covering *** **** ****:

*******, ** ** ********* ****** *********, *** **** **** ******* that *** ** ********.

*** ******* ***** ***** ******, ********** ** *** '****' *** camera ** ******* *** ***** *** ******* ***** ******* ******* the ****** **** ******** *** ***** ** **** *** ****. This ** **** ** **** ** ****** ********* *********.

Pixels ****** ** *******

* *** ****** **** ***** ******* *** **** ******* ** the **** ** * ******* ** * **' *******. ** ****** ***** *** *********, ******* *** ****** **** cover *** ***** ** **** ******** (*****) ** *** ***** a **** ** ** *** **** ********.

*******, * *** **** ******** **** **** **' **** ************* *** **** *******. ** *** *** *********, ******* *** pixels **** ** ******** ***** ****** ***** (*****).

**** *********, ******, ** * ******* *********** ***** ***** ** very ********* ******* ****:

  • ******* ** ******* ** *** ***** ****** (***** **** ***+ cameras *** ******** **).
  • ******* ** ****** **** ******* ***** ****** (**********).
  • ******* ** ****, *********** ** ***** *** *********** **************.
  • ********** *********** ********* / **** ** ******* (***********).
  • ***** ** ******** ** ******* ** ****** (** ********* ** *** ****** *** ****** ** ******* ***** **** *** ******, **** pixels **** *** ****).

Quality ** ******

**********, ***** ******* ** ****** ** * **** ***** ******* combined. ***** ***** ******* / ***** ********** *** ********* ******* and *** ******* ********** *******, ***** ***** *******, **** *** often ********** *** ******* ***** ************, ********* *** ***** ************ ********* *** ****** ***** ******* achieved.

Comments (6)

"****** ********* *********, *** *******" - **** **** ****.

***** **** **** ** ***** *********. ******* **** *** *** have ******* ******* *** * ****** ** ******, ** *** pixel ** ** ****** *****. ***** *** **** ** ******* on *** ****** ** ****** ************** *** ******* ************* **** need ** ****** **** ******** ** *** **** ****** ** a ******* ************* ***** ** *** ************ ** *** ******. just * *** ****** ******** ****:

*** *** ****** ******* *****? ***'* ***** **** *** **** important **** ** *******? **** ********* **** ***** ******* **** the **** ***** *****, *** *** **** ******* ****** **** another ***** ***** ****** ****? ** *** ***** ***** ****** than *** ***** ******* ** ******? ** **** **** ***** one ****** ****** **** *******?

** *** ******* ******* ** ** ********* ** * *******, how **** **** *********** **** ****** ******** * ************'* ************* or ******** ** ****** ******* *** ***'* ** ******* ** cameras **** *** ** *** ***? **. **** ** *** best ******? **** ** *** **** ***? **** ** *** best ***? **** ** *** **** *****? **** ** *** best *********** *****? ***.

*****, ***** ************ / *********.

"*** *** ****** ******* *****?"

**, **** **** *** ****** *** *** ******* *****. ******* #1 ** ******** *** *** **** ***** ****** *** *** significant **** ********** **. * **** ***'* ****. ****, ***** most ***** ************* ******* ***** **** *** ***** ******* **** (is ** ** ****** *** ** ** ********** ***), **'* hard ** **** *****.

"***'* ***** **** *** **** ********* **** ** *******?"

* ***** ***** **** ** ***** *********. ** *** ***** a ***** ** ***** **** / ****** **** / ********** comparing ** ** *** **** *******. ** *** **** ****** is **** *** *********** ******* ***** **** *** ******* ** weak (**** *** *** ***** ***** ***** **** ** **** often ****** ** * *** ******).

"** *** ******* ******* ** ** ********* ** * *******, how **** **** *********** **** ****** ******** * ************'* ************* or ******** ** ******"

* ** *** ***** **** ** ********. **************/********* *** **** starting ****** (**** *** *** ******** ***** - ***** ******, f ****, ***** *****, *****, **, ***., ***.) *** *** things **** ***** ************* ***** ******* - *** ***** ***********, *** **********, ********** ** adjustment - *** **** ** ********* ** ****** ********* *****. That's *** ** ** ******** ****'* *** ** **** ********* ******* ***** *** ************ so ********.

** ***** * ******** ******* ** **** ** ***** ** figuring *** *** (******* **** *****: *** ****** **** ******* at **' **** ***= ** ***), ** *** **** **** determined **** **** *** ********? ** ****** ******* ******* ** seems ***** *** ** **** ********* **** ***** ***'* ** a ******* *** ** ** ****. ******* **** ********* ********? Thanks

******** *** *** **** *** *** **** ** *** **** PPF *** **** *** ** * ***** *****? *** ****** is ****** ****** - *** ******* ** **** ********** ***** count / ********** *** *****.

*** **** *** *** **** ** * ****** **** ****** because ********* ***** ** ****** **** ** ****. *** ************* ***** ** ****** ** ******.

********* ******* *** ***** ******* ** ********* **** ** ******** with *** ******* ****** / ******** ***********. ** *******, * quick ****** ** **** ** ****** ** *********** ** * system ** ****** **** *******. ************* ** ******* ** ********* a ***** ****** *** * ******* ****** ******* ***** ****** don't ****/**** ** **** *** **** ** ********** ** ** a ********* ****...

*** *********** ****** * ***** ******* *** ** ********* *** ** * simple ****** *** ** ********,"***** ** ** **."

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

Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports

Access Door Controller Configuration Guide on Sep 27, 2016
Properly configuring access control door controllers is key to a professional system. These devices have fundamental settings that must be...
VLANs for Video Surveillance Tutorial on Sep 26, 2016
Many people confidently say to 'use VLANs' as an answer to IP video networking problems and as a way to signal expertise. But how should VLANs be...
Door Fundamentals For Electronic Access Control on Sep 20, 2016
Assuming every door can be secured with either a maglock or an electric strike can be a painful assumption in the field. While those items can be...
How to Measure Video Quality / Compression Levels on Sep 16, 2016
Two cameras have the same resolution, frame rate and scene monitored but camera A consumes half the bandwidth than camera B. Is Camera A better?...
Camera Course September 2016 on Sep 15, 2016
This is the only independent surveillance camera course, based on in-depth product and technology testing. Lots of manufacturer training exists...
PTZ Camera Guide 2016 on Sep 15, 2016
Pan/Tilt/Zoom cameras remain critical parts of many surveillance systems, especially in large security operations. Because of this it is important...
Hikvision 4K Camera Tested on Sep 09, 2016
Hikvision is the most common choice for low price entry level products but they are also competing with low light models, smart CODECs, WDR...
Panoramic Camera (Fisheye / Multi-Imager) Guide on Aug 31, 2016
Panoramic cameras, including fisheyes and multi-imagers, have become increasingly widespread, with most manufacturers offering fisheyes and an...
Tailgating - Access Control Tutorial on Aug 25, 2016
Despite costing thousands of dollars per door, electronic access control systems are vulnerable to an easy exploit called 'tailgating'. Unless this...
Cameras Mounted On Poles Primer on Aug 15, 2016
Poles are a popular but challenging choice for deploying surveillance cameras. Poles are indispensable for putting cameras at the right height to...

Most Recent Industry Reports

Camera Calculator Class and IPVM Member Orientation October 2016 on Sep 28, 2016
Members, learn how to better design video surveillance systems and get the most out of your IPVM memberships with 2 upcoming live classes. Both...
Axis 4MP Camera Tested (M3046-V) on Sep 28, 2016
Axis has brought 4MP to its camera line in the new M3046-V, the highest resolution model in their revamped M30 series. We bought and tested this...
Hiring Spree At Aimetis 6 Months After Being Acquired on Sep 28, 2016
Aimetis was acquired in April 2016, and is now expanding almost all of their departments, hiring employees from Axis and other industry...
Camio Natural Language Processing Tested on Sep 27, 2016
The ex-Googler led team from Camio has advanced its video monitoring offering to include natural language processing. Camio ingests video,...
Access Door Controller Configuration Guide on Sep 27, 2016
Properly configuring access control door controllers is key to a professional system. These devices have fundamental settings that must be...
Hacked Dahua Cameras Drive Massive Cyber Attack on Sep 27, 2016
Cyber attacks are accelerating and IP cameras are behind many of them. Worse, last week, a 'massive' attack was carried out using numerous Dahua...
Axis Secretly Paid Anixter Sales People To Push Axis NVRs on Sep 26, 2016
Internal Axis communication shows how Axis paid Anixter and Tri-Ed sales people with secret bonuses to push Axis NVRs. In this report, we examine...
VLANs for Video Surveillance Tutorial on Sep 26, 2016
Many people confidently say to 'use VLANs' as an answer to IP video networking problems and as a way to signal expertise. But how should VLANs be...
Ambarella CEO Admits H.265 and 4K Not Popular on Sep 26, 2016
Ambarella is the main chip provider for high-end surveillance cameras driving higher resolution and new CODECs. While Ambarella has been pushing...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact