Poor Road Sign Recognition

[ibmaxx]

The road sign speed limit display in the HUD is often incorrect. When reduced speed limits are posted on roadside easels like for road works the radar doesn't pick them up. It only reads elevated signs on poles. Anybody else with this problem?

 

[Kamauxx]

It reads the signs?

I always thought they were programed into the GPS.

 

[Clearly Canadian]

Based on another thread I think different markets accomplish it in different ways. Pretty sure it’s via the map update in North America.

 

[Bear]

It reads the signs?

I always thought they were programed into the GPS.

Yes, they are pre-programmed into the GPS and not read. To read the signs would take OCR software and wouldn’t be reliable at all.

Occasionally stretches of roads have their speed limits changed and it won’t reflect correctly based on what was pre-programmed. If you pay for map updates, the new limits aren’t always shown because it can take time for companies to realize it’s changed or not reported by users yet. That’s why I like Waze, you can report the issues immediately.

 

[ibmaxx]

Yes, they are pre-programmed into the GPS and not read. To read the signs would take OCR software and wouldn’t be reliable at all.

This is news to me having no such problem with my Volvo - it reads anything to do with speed accurately and I assumed Stinger was the same. How do they do that then??

 

[CDv6]

Yes, they are pre-programmed into the GPS and not read. To read the signs would take OCR software and wouldn’t be reliable at all.

It's part of the GPS in the US market, but I believe parts of Europe, Oz, and NZ have the visual input system. There's another thread on it, with documentation...

HUD/Navigation and Speed Limit Signs​

 

[Plainolmoo]

Sorry but this is hilarious to me. Kind of reminds me of the Deer Crossing lady. I apologize.

 

[Bear]

This is news to me having no such problem with my Volvo - it reads anything to do with speed accurately and I assumed Stinger was the same. How do they do that then??

I’ll have to admit that I’m wrong. Apparently Kia does have the technology. It uses the Lane Keep Assist camera to read signs. From what research I’ve done...the Kia Sportage has this.

So I’m curious if the camera is used along with the GPS here in the US and only the camera is used in other countries.

I’ll have to test this tomorrow, but pretty sure speed limits show up on streets that don’t have signs for me here in the US.

 

[CDv6]

I’ll have to test this tomorrow, but pretty sure speed limits show up on streets that don’t have signs for me here in the US.

I find the nav speed limit database is wrong frequently enough that I don't really trust it. I think the ideal solution would be to use a combination of nav database and sign reading, but this year's model doesn't seem to get all of the ideal options, only what KMA thought they could sell at an arbitrary price-point.

 

[upsidedown]

Australia only uses the GPS data for speed limits and even that's not real accurate. Not sure whos maps Kia uses but they sure need a big update on speed limits

 

[Berzerker]

I’ll have to admit that I’m wrong. Apparently Kia does have the technology. It uses the Lane Keep Assist camera to read signs. From what research I’ve done...the Kia Sportage has this.

So I’m curious if the camera is used along with the GPS here in the US and only the camera is used in other countries.

I’ll have to test this tomorrow, but pretty sure speed limits show up on streets that don’t have signs for me here in the US.

I'll definitely agree that Kia has this technology, but the speed limit signs are wrong around here often enough that I don't actually think the Stinger uses it, just GPS data.

 

[Bear]

So took the Stinger out and drove past some speed limit signs and the Stinger didn’t change based on the signs. There are some areas around me that haven’t had their limits updated by the GPS. But the signs show the actual/current. I drove past a couple newly changed speed limit signs with the big orange flags hanging off it to reflect a recent change...the Stinger still showed the old limit.

So the camera, if working, in the US isn’t the main source or at least overridden by GPS.

 

[Kia Stinger]

My Accord works via GPS data as well. And like always, it's inaccurate sometimes. I'm guessing the Stinger works the same way. The data is stored in the system and speed limit display is just loading that data...

 

[Stinger73]

When I test drove a 2018 Toyota Camry XSE and XLE v6s, both had HUD with camera based sign detection. It worked really well as I would pass a speed limit sign and then it would appear on the HUD. So IMO the technology works well.

WOW yet anymore not surprising...if all of the Stingers have the capability to do the same yet KIA was either too cheap to add the software or KMA had a complete moron in charge of choosing what the US should have or not. Beginning to to believe the later anymore.....

 

[Kia Stinger]

When I test drove a 2018 Toyota Camry XSE and XLE v6s, both had HUD with camera based sign detection. It worked really well as I would pass a speed limit sign and then it would appear on the HUD. So IMO the technology works well.

WOW yet anymore not surprising...if all of the Stingers have the capability to do the same yet KIA was either too cheap to add the software or KMA had a complete moron in charge of choosing what the US should have or not. Beginning to to believe the later anymore.....

The Toyota Camry has shown the speed limit to the driver since 2014 or so. This was navigation data based and not sign-detection. Are you 100% certain the Camry has this feature? I know they have pedestrian detection via camera - but I don't believe it actually reads road signs and displays that information in real-time. If I'm wrong, I'd love to know because I think that would be really cool for such a mundane, mainstream car to have the feature. I'm searching and not finding anything...

 

[DaJackson]

The Accord and A4 both have camera based road sign recognition.

 

[Kia Stinger]

The Accord and A4 both have camera based road sign recognition.

A4 is easy to believe. It's a highly technologically advanced car. I'm very impressed by it. I guess the 2018 Honda Accord has it? My 2016 doesn't, to my knowledge. But if the new Honda Accord has it, I don't see why the new Toyota Camry wouldn't. I just can't find any write-ups about it...

 

[DaJackson]

A4 is easy to believe. It's a highly technologically advanced car.

To clarify its only on the Prestige trim AKA top of the line, even though the menu is on every car even if it doesn't function.

 

[ibmaxx]

By the sound of it Kia have missed the boat on this by delivering inferior GPS data constantly behind in speed limit reading and failing completely with temporary limits like road works. My Volvo is Nov 2014 build before Stinger was off the design boards and yet it works perfectly detecting every time without fail because of the camera.

 

[Stinger73]

Oops it was the 2018 Honda Accords, which I drove the same day as the dealer was basically next door. Both test drives seemed about the same drive wise, which was bland, that the experience blended together.

Here is the link to the info for Honda: Traffic Sign Recognition (TSR) | 2018 Honda Accord-Sedan | Honda Owners Site

The link to the Toyota Global site shows Toyota's only have the function in Europe: http://www.toyota-global.com/innovation/safety_technology/safety_technology/technology_file/active/rsa.html

The technology, as far as the camera, used to read the lines on the road for Lane Departure Warning System (LDWS) and Lane Keeping Assist System (LKAS) would more than likely be sufficient to read the signs if it had the software.