How to tune the LDC module for fish-eye lens on DM365?

pavel4378

Hi,all!

I have purchased the Appro DM365-MT5 IPNC module.Now I have a project to use this IPNC to interface with fish-eye lens and we need to do the fish-eye lens distortion correction on DM365.I noticed that the DM365-MT5 IPNC has a image tune tools(ver 2.0 lite) to tune the LDC and other modules. But unfortunatly, I find that the fish-eye lens option is disabled on this software tool. I spend much of my time to tune the LDC parameter on the normal sensor option, but the result is very bad, I can't find the right way to tune the LDC module proprtly, even I don't konw what is the mean of the parameter. so I want to konw How can i tune the LDC parameter for fish-eye lens on DM365?If I select the normal lens on the image tune tools, is it possible for me to get the correct result?

Thank you! Any help or tips will be appreciated!

over 14 years ago

0 Tai Nguyen over 14 years ago

TI__Expert 5955 points

Hi,

Unfortunately TI doesn’t have LDC tool for supporting Fish-Eye cam (as the distortion cannot be mathematically interpreted in general), so you would need to do manual tuning.

Thanks.

-Tai Nguyen

0 pavel4378 over 14 years ago in reply to Tai Nguyen

Intellectual 575 points

Thank you very much for your reply!

I need a exact answer to this problem.

pls check this product from a taiwan company:http://www.visionatics.com.tw/eptz-ref-design.html

They use DM365 to do the fish-eye image distortion correction perfectly. I think they should use the LDC module to do this job.

I want to konw if I use the manual tuning mode, how should I do in 1280x720 resultion?

Thank you!

0 pavel4378 over 14 years ago in reply to pavel4378

Intellectual 575 points

Hi,all!

Is there any update for my last post? The time line is very urgent, pls give me a conclusive answer!

btw: the resolution is 1280x720 30fps, and I can use DM368 to instead of DM365, is it for to do this job?

Thank you!

0 Tai Nguyen over 14 years ago in reply to pavel4378

TI__Expert 5955 points

Hi,

Sorry for the delay but we are checking with someone in the field that works with Visionatics and get back to you.

Thanks.

Tai Nguyen

0 Tai Nguyen over 14 years ago in reply to Tai Nguyen

TI__Expert 5955 points

Hi,

Here is some info that I got from the field apps that the Visionatics uses the DM6437 for LDC.

Regarding your question if you can use the DM368 instead of the DM365 for including LDC, please contact the local sale office to learn more about it as such info can only be disclosed to NDA customers.

Thanks,

Tai Nguyen

0 rulphie over 14 years ago in reply to pavel4378

Prodigy 110 points

Hi Pavel,

were you able to find out how to use manual tuning for this particular problem?

Thanks

0 Marshal Li over 14 years ago in reply to rulphie

Prodigy 140 points

Did any one find out how to use manual tuning for this particular problem? How about effect after corrected? Urgent!!!!

Marshal

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How to tune the LDC module for fish-eye lens on DM365?