Here are the Manufacturers that Do and Do Not Support Corridor Mode

Author: IPVM Team, Published on Dec 23, 2014

A lot of integrators like corridor mode.

This functionality is sometimes called 'hallway mode' or 9:16 or portrait or 90° rotation, etc.

The most common practical example is in hallways, where such a mode better fits that layout of what is being monitored, as shown in the comparison below:

Inside, we break down the results, including 7 manufacturers that do not support, 4 that do, and 2 that claim it is upcoming. Plus, we show how you can now search for corridor mode inside our Camera Finder.

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Comments (26)

John Honovich

IPVM | 12/23/14 03:15pm

If you know other camera manufacturers or VMSes that support this, feel free to respond in the comments.

Undisclosed Integrator #1

12/23/14 04:52pm

On the Avigilon (& other) indoor cameras we install them with the sensor twisted 90 degrees and then in the software adjust the view by 90 degrees and it is the same effect. We do it a lot for halls / corridors and in some swim lanes & other areas that are taller/longer than they are wide.

John Honovich

IPVM | In reply to Undisclosed Integrator #1 | 12/23/14 06:08pm

A, thanks for the feedback.

In our testing, we could not even get Avigilon cameras to display rotated on third party VMSes even after using ACC to set it up.

For our Camera Finder, if we list Avigilon cameras as supporting corridor mode but someone uses any other VMS but Avigilon, it looks like it won't work. That's why we did not include Avigilon.

It's a tough case and it would be simpler / cleaner if it did work for Avigilon cameras connected to third party VMSes. Do you have any info / experiences to the contrary?

Undisclosed #2

In reply to John Honovich | 12/23/14 08:16pm

And yet the UI option to rotate image in ACC is only present, AFAIK, for (All) Avigilon cameras. It shouldn't be 'harder' to flip a non-Avigilon image than a Avigilon one, when done at the server, right?

So does that imply that ACC is intentionally limiting existing functionality to make their camera line more appealing?

It is of course normal and natural to have better integration with ones own cameras, but is it accepted practice to disable existing functionality for no other reason but marketing?!

How do Avigilon partners feel about this? Is this an industry wide practice?

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Ethan Ace

IPVM | In reply to Undisclosed #2 | 12/24/14 12:21am

I haven't seen the option in ACC to rotate cameras other than Avigilon's own.

Undisclosed #2

In reply to Ethan Ace | 12/24/14 12:42am

Agreed. Is there any technical reason you can think of why they can't do it for any manufacturer's camera just as quickly and easily as their own?

Undisclosed Manufacturer #3

12/25/14 09:25am

Hi John,

Lilin camera L series (1080P @15fps) and Pro series (1080P@30fps latest firmware version) are supporting Corridor Mode.

Undisclosed Integrator #4

12/29/14 09:20pm

I think I've run across a Sony or two that could do it by accident but definitely not supported on the majority of the line.

Ian Johnston

01/06/15 06:34pm

This is one great application of why having the camera knowing it's orientation is important. With ISD and DW Spectrum and Network Otpix, you can simply hang the camera sideways and it will automatically rotate the image to show the image right side up.

Great for cameras that accidentally get mounted upside down as well.

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Phil Coppola

01/06/15 07:20pm

Sony Firmware verison 2.4 which has been officially released will now support "corridor mode". The file has not yet been posted to our firmware download site, but should be up within a week. In the mean time, if you need this feature please contact your local Sony Security Account Manager or Local Area Rep. They can get you the file.

Derek Ward

01/12/15 04:33pm

Sony has recently released firmware version 2.4.0 on their G6 camera lines, and we now have 32 Sony cameras that have corridor mode capability.

Check out and compare them in our IPVM Camera Finder!

Matt Ion

02/07/15 04:16pm

I found this feature really useful on the 2MP Dahua mini-domes we were using (despite the strange fact that it would only work when the camera was set to 720p or lower)... was disappointed to find the newer 3MP replacements removed the 90-degree rotation feature altogether. Doing a lot of restaurants, I've found it's a great function for places like walk-in food coolers.

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James Talmage

IPVMU Certified | 05/07/15 12:10am
Samsung's Wisenet Lite does support "hallway" mode. Because heaven forbid the industry standardize on a term and miss an opportunity to "differentiate" themselves from the competition.

Matt Ion

In reply to James Talmage | 05/07/15 12:47am

Axis, Dahua and HIK (at least the ones I've used) all just call it "Rotation" or "Rotate". Because heaven forbid a simple descriptive function be re-labeled with a catchy buzzword.

Chris Dearing

IPVMU Certified | 05/07/15 10:10pm

Which VMSes don't support rotation?

Is there a valid reason that any VMS/DVR/NVR software wouldn't include such a trivial transformation?

Of course if the camera can perform the transform without impacting its performance, then great. But otherwise, CPU cycles are cheaper at the server, no?

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James Talmage

IPVMU Certified | In reply to Chris Dearing | 05/08/15 06:14pm

Rotation at the server would require a decode / reencode, which is not cheap. The cheapest points to perform the rotation would be when the image is in an uncompressed state; At the camera before compression, or at the client after decompression. If the camera does not support rotation, I imagine the most efficent way for a VMS to perform the rotation would be to store and serve it unrotated, and have the client perform the rotation for the viewer. That said, it does seem fairly simple to implement (client side) and I am not sure why VMS's would not support it.

Chris Dearing

IPVMU Certified | In reply to James Talmage | 05/08/15 10:13pm

Rotation at the server would require a decode / reencode, which is not cheap.

Good point! Besides CPU being not cheap, there would be the unavoidable loss of quality from the reencode, so that's not desirable.

I think that the viewer should be able to perform the transform during the decode, if necessary. As it creates the frame object in memory, by just swapping x and y array indices. Compared to the CPU effort of the decode it is already performing, such logic shouldn't add much.

As for which way consumes less resources overall, one thing to consider is the fact that most video never gets viewed and therefore never needs rotation. With the energy you would save over needlessly rotating a trillion frames or so, you could plant one less tree. Or something like that. :)

Tasneem AbuQutaish

IPVMU Certified | 09/02/17 03:14pm

Regarding ACTI Cameras, you sure it supports Corridor format feature ?
Thanks

Undisclosed #2

In reply to Tasneem AbuQutaish | 09/02/17 03:51pm

Certainly on some models, for instance the I-series:

Dennis Eversole

In reply to Tasneem AbuQutaish | 12/28/17 10:32pm

Certain cameras and Series do support Rotate/90/Hallway/Corridor/catch-word-of-the-day. For instance, all the cameras in the A Series support it, some of the newer model cameras in the E and B series do as well. As the product line is revised, it will be a standard feature across the line.

This should not be confused with Flip or Mirror, which are supported on the vast majority of models, but it a different thing.

Disclosure - ACTi BDM

Tasneem AbuQutaish

IPVMU Certified | 09/04/17 02:21pm

Thanks, because the term "corridor" is not mentioned, and also on IPVM searching for ACTI models nothing shows up, so just to make things clear : is the flipping feature (even in other models) same concept as corridor format ?

Many thanks!

Undisclosed #2

In reply to Tasneem AbuQutaish | 09/04/17 02:28pm

is the flipping feature (even in other models) same concept as corridor format ?

Generally yes. It's usually no more than a swapping of x and y coordinates.

Though if the camera image was by default was taller than wide, one could argue it was already in corridor mode.

Undisclosed #5

In reply to Undisclosed #2 | 12/28/17 03:04pm

I don't believe this is correct.

My understanding is that 180 degree flip is a mirror image (either up and down or left and right) - it does not swap the x and y axis as hallway or corridor mode does. Instead, it replaces a point on the x or y axis with it's own opposite.

Am I wrong?

Dennis Eversole

In reply to Undisclosed #5 | 12/28/17 10:33pm

Cant speak for other brands, but for ACTi, Mirror and Flip are two different things. Sometimes linked, sometimes separate, depending on camera model.

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Rafael Oneda

12/28/17 01:39pm

It would be great if this report should updated.

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Ethan Ace

IPVM | In reply to Rafael Oneda | 12/28/17 03:15pm

Thanks for your comment. We will update this, as it could use more examples of where to find corridor mode settings and more detail in manufacturer support.

We'll queue that up for the new year, but in the meantime some of that information (and test results) can be found in Corridor Mode Tested.

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