How to Group images from 4 Cameras ?

[ayushmankumar7]

I was experimenting with Multiple Fish Eye Cameras. I looked at the rgb_images folder, It's not really clear which FV is related to which RV, MVL, and MVR.
How do I find these groups?

[xuchen-dev]

+1

[xu19971109]

woodscape/vehicle_info/rgb_images/00000_FV.json
I aligned by the "timestamp".
{
"frame_id": "00001_FV.png",
"timestamp": "22996589",
"ego_acceleration": "60.000000",
"ego_gear": "D",
"ego_speed": "7.500000",
"ego_steering": "-9.030000",
"ego_yawRate": "-6.350000",
"ego_distance": "0.069414"
}

[xu19971109]

maybe woodscape/vehicle_info/previous_images/00000_FV.json

[heyfluke]

I would group them with timestamp. For example 5710 - 5713 are aligned.

[Marsir04]

I write a code to find out which documents have the same timestamp, I output those not less than 4 and here is what I got. (First few lines, a lot more afterwards) It turns out that there are always more than 4 pics with the same timestamp. Any idea?

Timestamp: 25996131
File: E:\AVM\documents\rgb_images\00002_FV.json
File: E:\AVM\documents\rgb_images\05501_FV.json
File: E:\AVM\documents\rgb_images\05502_MVL.json
File: E:\AVM\documents\rgb_images\05503_MVR.json
File: E:\AVM\documents\rgb_images\05504_RV.json
Timestamp: 5999084
File: E:\AVM\documents\rgb_images\00004_FV.json
File: E:\AVM\documents\rgb_images\02251_MVL.json
File: E:\AVM\documents\rgb_images\05455_FV.json
File: E:\AVM\documents\rgb_images\05458_MVL.json
File: E:\AVM\documents\rgb_images\05462_MVR.json
File: E:\AVM\documents\rgb_images\05466_RV.json
Timestamp: 7998812
File: E:\AVM\documents\rgb_images\00005_FV.json
File: E:\AVM\documents\rgb_images\01366_FV.json
File: E:\AVM\documents\rgb_images\01367_MVL.json
File: E:\AVM\documents\rgb_images\01368_MVR.json
File: E:\AVM\documents\rgb_images\01369_RV.json
File: E:\AVM\documents\rgb_images\02255_MVR.json
File: E:\AVM\documents\rgb_images\02259_RV.json
File: E:\AVM\documents\rgb_images\02260_FV.json
File: E:\AVM\documents\rgb_images\02264_MVL.json
File: E:\AVM\documents\rgb_images\02267_MVR.json
File: E:\AVM\documents\rgb_images\02271_RV.json
File: E:\AVM\documents\rgb_images\05421_FV.json
File: E:\AVM\documents\rgb_images\05422_MVL.json
File: E:\AVM\documents\rgb_images\05423_MVR.json
File: E:\AVM\documents\rgb_images\05424_RV.json
File: E:\AVM\documents\rgb_images\05459_MVL.json
File: E:\AVM\documents\rgb_images\05463_MVR.json
File: E:\AVM\documents\rgb_images\05467_RV.json
File: E:\AVM\documents\rgb_images\05516_FV.json
File: E:\AVM\documents\rgb_images\05519_MVR.json
File: E:\AVM\documents\rgb_images\05522_RV.json

[Marsir04]

Alright, I add 'ego_acceleration' and it gets better.

Values: ('5999118', '103.000000')
File: E:\AVM\documents\rgb_images\00014_FV.json
File: E:\AVM\documents\rgb_images\02122_FV.json
File: E:\AVM\documents\rgb_images\02127_MVL.json
File: E:\AVM\documents\rgb_images\02135_MVR.json
File: E:\AVM\documents\rgb_images\02141_RV.json
Values: ('1999695', '48.000000')
File: E:\AVM\documents\rgb_images\00134_FV.json
File: E:\AVM\documents\rgb_images\00140_MVL.json
File: E:\AVM\documents\rgb_images\00149_MVR.json
File: E:\AVM\documents\rgb_images\00158_RV.json
Values: ('20996860', '174.000000')
File: E:\AVM\documents\rgb_images\00135_FV.json
File: E:\AVM\documents\rgb_images\00141_MVL.json
File: E:\AVM\documents\rgb_images\00150_MVR.json
File: E:\AVM\documents\rgb_images\00159_RV.json

and a lot more...

[augsh]

Any new info on this issue? I'm likewise looking again for ways to group four images.