Testing Scallop Panoramic Cameras

By Ethan Ace, Published on Dec 19, 2014

For years, Arecont Vision's SurroundVideo line has been practically the only multi-imager option, but with their poor reputation, multi-imager cameras are still not widely used.

Scallop Imaging aimed to change that with their D7 line, a 5-imager, 7MP camera with a unique form factor, recently updated with better low light sensitivity and improved frame rate.

*** ******* ******* ******* poorly ** ******* *************, in ***** ** *** and ***** ***** *******, frame ****, ****** *****, VMS *********** *** *****. Unfortunately, **** **** ****** improvements, ** **** *** provide * ****** ***********.

*** **** ********* ******* may **** ** *** much ******* **** ****** which **** *** **** more ********** *** **** obtrusive **** ******** *******. Additionally, ****** ******** *** specialty ****** ******* ******* more ******* *** ******** the **-*** **** * user's environment.

Key ********

**** *** *** *** findings **** **** ****:

  • ***** ******* ******* ** Arecont ********* ** ***** ranges, ~**' *** *****, though ***** ** ******* ranges (~**'+).
  • ****** ***** ******* ** full ***** **** *****-********* fisheye ********* ******* ** all *********.
  • *** ***** ***** ******* similar ** ** ***** than ******* ******.
  • *** * *** ***** rate compared ** **** *****-****** competitors, ********* * *** *** up.
  • **** ********* *********** ** full *****, **** * Mb/s, ****** ** **** of *******'* *****-****** ********** (1.32 **/*).
  • ********* *********** ****** **** or ******* ** **** Arecont ************* ** *** light (~* *** *** below), ****** **** ****** than ******* ********* ******.
  • ******* ********** **** ********* ******** without *****.
  • *********** ** *********** *** Avigilon ******* ****** *** RTSP *** ****** ***** default ********, **** ******** stream ********. 
  • ********** *********** (~**-*** **. 28 *******) *** ********** sharpness ********** ******* ** both *****, ******* **** impact ** ******* ***** quality.

*******

*** **-***** ***** *** about$*,*** *** ******. **** ******* ** higher **** ********** ********* **** ************* 180, ***** ***** *** about$*,*** ******, *** ******** **** WDR *** **** ******. Compared ** ****** ****** 5-6MP ******* ******* (**** as ************ **-*******,~$*** ******), ** ** **** than ***** ***** *** price.

Physical ********

*** **'* **** ****** is ********** ******, **** similar ** * ***** cube ******, **** ******* for ******* *** ****** mounting. ***** *** *** models ** ** *********, in ******** ** ********** orientation. *** **** ********** is ****** *********, ** both **** *** **** number ** ******* *** performance *****.

** **** ***** ** review *** ******** ************ of *** ******* ** cameras, **** ******** *** horizontal ******** ******.

************* ********

*** ***** ****** ***** Scallop ****** ***** **** camera ************* ** *** is ************* ********, **** in ******* ****, *****, paint, ******, *****, ***. varieties. ***** ********** ********* with ********** *** ****** one ** ***** ** better ***** ** **** their ********.

*************

** *** ***** *****, we ****** ************* ** the ******* **. ***** are ******* ******** ****** in *** ******* *** interface, ***** *****:

  • ******** ********, ****, *** custom *** ****** ********, no ******* *** ******** Quicktime ** *** *******, nor ****** ** *******.
  • ******* ***** ********, ********** only ** ****** ********* and ************.
  • ********* ** ******* ** either * ****** * FPS **** * ** stream ****, ** * 1 *** * ** stream **** * ***** resolution **** ****** ********** a *** ********** ******** plus ** ** **** zoom *******. *** ** stream ** *********** **** using *** * *** full ******.
  • ************ ** ************ **** 20-35, **** * ******* of **. ** ********* increasing **** ** ~** to ***** ******* *** increase ********* (***** *****).
  • ****** ******** ** */*** slow *******.

VMS ***********

*********** ** *** ******* D7 [**** ** ****** available] ** ***** ******, with *** ***** ***** listing **** **** ** support. **** ***** (*****, Milestone) ********** **** *** RTSP *******, ***** ******, such ** ********* ******** include ****** *******. **** that **** *** ************, most ******* *******, *** limited ** **** *** ** stream **** ** ****** to *** **** * MP ******.

** *********** ******** ****** ********* when ***** *** **** resolution * *** ****** with ***** *** ********, especially ** *** *****. Scallop *********** ******** ********* and ********** ************, ***** remedied ***** ******. ***** the * *** ****** also ******** ****** ** all *****.

** ****** **** **** in ********* ******** **** using ******* ********.

****: ***** ********* **** not ****** *** ** the ****** ***** ****** to ****** ********** ** streams **** ***** (**-** Mb/s). With **** *** **** 3 *** ****** *********, CPU ***** ***** ******** 5%, *** ******* *********** remained *** (***** * Gbps *****).

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

** **** *****, ** close ***** (~*' **** camera/~90 ***), *** **-***** performs ****, **** ****** contrast *** ******* ******* than *** ******* *********, as **** ** ****** fisheye ********* *****. 

****** **** **** *** camera, ** ***** **', PPF ***** ** ***** 34 ** *** **-*****, with ******* ******* *** the ***** ******* **** to **** *, **** some ** * ********* legible. ******* *** ********** better **** *** **** and ********* ******* ******, though ************* ***** **** the ******* *************. 

*** *****

** *** *****, ~* lux, *** ******* ****** produces *** ****** ******* of *** ***** *******, performing ***** **** *** Axis *****, ***** ******* shows ******* ** *** clothing *** ****. ***** the ********* ******** ****.

*******, ** ***** **' in *** *****, **** the ******* ************* ****** shows *** ******* ***** lines *** **** ******* of *** *******. 

 

Bandwidth ***********

*** **-***** *** **** of *** ******* ******** in *** ****, ********** in **** *****, ***** it *** ****** ** the ********* ** *** higher ********** *********. ** low *****, ******** **** comparable ** *** ************* model, ****** *** ****** than ****** ******* *********. 

Comments (5)

When I had looked at this camera previously, it did not have any camera side motion detection, limiting its usefulness with VMSs like Exacq that do not have server side motion detection. Has this changed?

Hey Dan,

It is something I believe they are looking into. Providing motion on Exacq and other VMS manufacturers is crucial to their future success. Really slick product and huge potential.

Still no camera side motion detection - they tell me that model will be out mid to late (my guess) 2015. I tested the b&w one with Avigilon - I like the different form factor for some applications but until this next release comes out which should have day/night and camera motion side its not really a viable option.

They've released a day/night model (two separate sets of imagers) but still no motion detection nor increase in framerate.

What stream was used on the Arecont model? I highly doubt it was an RSTP stream. Anytime you use that stream it is not going to optimally display the image. That really doesn't show a true apples to apples comparison if that is the case. While I do understand why you used the RSTP stream for the Scallop imaging cameras I woukd rather have seen the displayed images from VMS partners that were both integrated.

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