Subscriber Discussion

Avigilon WDR Shadowing Or Compression?

UI
Undisclosed Integrator #1
May 21, 2019

Hi.

I have often noticed a "shadow" (not shade, more like a ghost), or several shadows, following people across the scene. It is easiest to see when the background is in a uniform colour, and the person is walking from one side to the other. I have only noticed it on Avigilon cameras, but I have only really looked for it on those cameras, so it may be a normal problem. I thought it was wdr ghosting, from the extra exposures.

*** *** ***** *** * ***** to ****** *** ******* ** ******* off ***, *** **** **** ***** there. *** * ******* **** **** sort ** ******* ** *** * frames. ** * ** ******** ** suspect **** ** ** *** ********** algorithms ** *** ***** **** ** the *******, *** *** *** ***. I **** *** **** *** ********* testing, ** *'* *** ****** ****, but * ** ******** **** *** shadows *** ***** *** *** ****** parts ** *** *****, ********** ***** stuff, **** *** ****. ** ******** the ******* ***** ***** ******* ****** images.

**** ******* ******* **** *** ***** cameras, *** ***** ******* ******* ** deny *** ** ** **********? ** come ** **** ******* ***? ** it ** *** ***********, **** * guess ***** ** ****** ** ** about ** ******, *** ** ***** is **** **** ** ********* **** the ***** ******** **** **** ****** them, **** * ***** ********** * tip:)

MM
Michael Miller
May 21, 2019

***** *** **** ** * ******* with ** ***** ******* *** *****?  I **** *** ******** ** ******** cameras ** * ***** ** ********** to *** ** * *** *** the ***** **** ******. 

UI
Undisclosed Integrator #1
May 22, 2019

*****. * ** *** ******* ** send *** ****** **** **** ******. Next **** * *** **** ** an ******** ******, * **** **** an ******* *****, *** **** ** here. ***** ** * **** **** though.

* ******* * **** **** ** on *** * *** * ** dome *******. **** ** *** **. The **** ****** *** ****** ****** is ******* **** ****, **** * see ** **** *******.

UI
Undisclosed Integrator #2
May 21, 2019

* **** **** **** ** ******** manufacturers, *** **** ********.  ** ***** I ******* ** *** *.*** ** H.265, *** * ****** *.*** *** it ***** ******* ** *.***.

* **** *** ****/******* ****** **** these "***** ******" *** **** * part. ** ** ***** **** ** cameras **** **** ***** *** ***** sensitivity *** *** ****** ** ****** its **** ** **** ** *****.  To ** *********...

UI
Undisclosed Integrator #1
May 22, 2019

*** **** **** * *** **, it *** ******, *** ********, **** the ******* ****** *** ******. ****** be ****** *****. * *** ** on * ** ** ****, *** that *** * *** ***** *****. Did ** **** *** "***** *****"? Maybe ** ********** **** *****? ** you **** * ****** ** **** this? * ***'* **** * ****** available.

Avatar
Ethan Ace
May 22, 2019

*** **** ** **** *-***** ********? It ****** **** *********** ********* ** me. **** ****** ** * ***** of ***** *** ***** ****** ****** the ******. *** *******, ****** **** train *** **** ****.*** * ** * ***** **********, *** *** *** * *****, with *** **** ** *** **** of *** *** ********.

** **** ***'** ****** ** *******, I'd ********* ********* **** *-***** ******** to ***** **** *********. ******** ***** it ******** ********, *** **'* ** the *********** *** ***** **** ****. So ** ***'** ***** ** *** your ******** ******** ****** ** **.

(1)
(1)
UI
Undisclosed Integrator #1
May 22, 2019

* ******* *** *** *** ** match * ******. * *** *** verify *** **** **** ** *** case *** *** **** ******, *** I **** ***** **** * *** the ***********.

* ** *** **** ** ** is *********, **** *** **** ** your ******* *******. **** * ***, looks ** ** **** ************ ****** of *** ****** ******, **** * very *** *******.

Avatar
Kevin Bennett
Jun 05, 2019

*****'* ************** ** ********* ** *********** on **** ***** ** ***** ***** we **** ****** *** "********" *****.  Matching *** ******** **** ** *** image **** **** * *** **********.  It *** *** ******* ********* *** problem, *** ** **** ** * lot **** **********.  ********'* ******* ******** was *** ** ** **** *** WDR . . . *** ***** that ******* *** *** ** ********* those ** *****, **** *** *** a ****-**** ******** *** **.  ********* WDR *** **** * ********** ** the ******** *******, *** *** *-***** adjustment *** *** ****** ***. 

** **** ***** **** * ********** firmware ****** ******* ** **** ******* the ***** **** ****.  ***** **** it *** **** **** **** *** upgrade **** **** ** ****, *** I ****** ****** *** ****.

*** ********** *** **** **** *** issue *** ******* ** * *** H3 *** *** ******, *** ** have *** **** ** **** *** of *** ** *******.  ** *** currently ** *.**.*.**.

MM
Michael Miller
Jun 05, 2019

*** ****** **** ** *** * keyframe *** ****** **** ********.  ******** when *** ***** ***** ** **** the *********. ** * ******** *** second ** ****** ***********. 

(1)
Avatar
Kevin Bennett
Jun 05, 2019

... *** *** *********, *** ******* camera ******** *** ******** ******** *** most *****, *** **** */*** *** exposure, ** ***, ******** ********=** (** once *** ******), *******=* (******** *******).

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