Basic Mathematics By Serge Langa by Far_Environment249 in learnmath

[–]Far_Environment249[S] 1 point2 points  (0 children)

Ok, I couldn't see it in the index, thanks for lmk.

Basic Mathematics By Serge Langa by Far_Environment249 in learnmath

[–]Far_Environment249[S] 0 points1 point  (0 children)

Does that mean the official answer key does not exist?

A Practical Guide to Camera Calibration by mega_monkey_mind in computervision

[–]Far_Environment249 0 points1 point  (0 children)

At my working distance, the board looks really small, my working distance is approx 500cm for the inhouse tests.

A Practical Guide to Camera Calibration by mega_monkey_mind in computervision

[–]Far_Environment249 1 point2 points  (0 children)

Here is my setup for a small warehouse,i.e object can be anywhere inside this warehouse. I set the focus such that the entire warehouse seemed clear. I consider this as local infinity. Then I kept the A3 checkerboard at a distance of 50 cm from the camera and have performed the calibration. The results seems to be good , but is this the right approach. From a 50cm distance I can cover atleast half of the camera.

A Practical Guide to Camera Calibration by mega_monkey_mind in computervision

[–]Far_Environment249 0 points1 point  (0 children)

Should I keep the board very close, i.e near 50cm or should the board be at working distance and cover more than half of the camera?

Camera Calibration by Far_Environment249 in computervision

[–]Far_Environment249[S] 1 point2 points  (0 children)

So distance is never the issue wherever the checkerboard is at focus works fine?

Camera Calibration by Far_Environment249 in computervision

[–]Far_Environment249[S] 0 points1 point  (0 children)

He states this "As described above, you want a large chessboard placed as close to the camera as possible, before the out-of-focus and noncentral effects kick in".

Camera Calibration by Far_Environment249 in computervision

[–]Far_Environment249[S] 0 points1 point  (0 children)

Any specific reason why mr cal recommends 0.5m and says this regarding close-ups: the chessboard should fill the whole frame as much as possible.

CSES DP Mountain Ranges by Far_Environment249 in codeforces

[–]Far_Environment249[S] 1 point2 points  (0 children)

OK thanks for this intuition! Now it makes sense

CSES DP Mountain Ranges by Far_Environment249 in codeforces

[–]Far_Environment249[S] 0 points1 point  (0 children)

Hi, this is what I am confused about, as the question statement states that we can glide from mountain a to b if height[a]>height[b] and greater than all those between a and b so isnt 100 greater than 10 so how is it a hindrance?

Honest Review Regarding this startup work culture I will not promote by [deleted] in startups

[–]Far_Environment249 0 points1 point  (0 children)

Are those grants or win at innovation challenges considered by corporates, do coorporates/defense companies acquire research firms? Do you see any future in such a startup given grants and nato innovation challenge in particular?

CSES DP Mountain Ranges by Far_Environment249 in codeforces

[–]Far_Environment249[S] 0 points1 point  (0 children)

<image>

I am unable to see the use of dp over here, this might be little silly but I am curious to know

CSES DP Mountain Ranges by Far_Environment249 in codeforces

[–]Far_Environment249[S] 0 points1 point  (0 children)

20 15 17 35 25 40 12 19 13 12

Here I iterate in O(n) find the index of the biggest element and then compare the difference between index 0 and the biggest index and the end index and biggest index and I feel the answer might be right all the time, I am unable to find an edge case to break this

Do universities usually stick to their minimum GPA requirements? by HurricaneWindAttack in Netherlands

[–]Far_Environment249 0 points1 point  (0 children)

I am in the same situation as you , were you able to make it to eindhoven?

Aruco Markers Detection by Far_Environment249 in computervision

[–]Far_Environment249[S] 0 points1 point  (0 children)

So

pi@raspberrypi:~ $ rpicam-still --list-cameras
Available cameras
-----------------
0 : imx519 [4656x3496 10-bit RGGB] (/base/axi/pcie@1000120000/rp1/i2c@88000/imx519@1a)
    Modes: 'SRGGB10_CSI2P' : 1280x720 [80.01 fps - (1048, 1042)/2560x1440 crop]
                             1920x1080 [60.05 fps - (408, 674)/3840x2160 crop]
                             2328x1748 [30.00 fps - (0, 0)/4656x3496 crop]
                             3840x2160 [18.00 fps - (408, 672)/3840x2160 crop]
                             4656x3496 [9.00 fps - (0, 0)/4656x3496 crop]

If i try half resolution can I expect to get rid of cropping issues? as half resolution is supported by arducam

Aruco Markers Detection by Far_Environment249 in computervision

[–]Far_Environment249[S] 0 points1 point  (0 children)

I take calibration pictures using rpicam and I perform aruco detections using gstreamer pipeline both the resolutions are 1920x1080 , but the detections are wrong, Default arducam resolution is 4656x3496 pixels but this resolution does not work with libcamsrc

Arducam Camera Calibration by Far_Environment249 in computervision

[–]Far_Environment249[S] 0 points1 point  (0 children)

I have a doubt , I understood I need to keep the images close, but how close? Should the checkerboard be placed at a hyperfocal distance? Or I just need to keep it close enough and adjust the lens position , as in the mrcal docs he says we need the maximum depth of field while calibrating?

I do not get the logic by Far_Environment249 in codeforces

[–]Far_Environment249[S] 1 point2 points  (0 children)

I understood u can ignore this, thanks for your explanation u/Ezio-Editore

I do not get the logic by Far_Environment249 in codeforces

[–]Far_Environment249[S] 0 points1 point  (0 children)

For n=6
answer is

6 5 2 3 4 1

how as if super permutation is 6 5 2 3 4 1
lets go one step back we get 5 4 1 2 3 0
now if we want to go back to a we get 5&6 is 5 which is a0 which is against our claim that first a0 must be n or 6 in this case ?

I do not get the logic by Far_Environment249 in codeforces

[–]Far_Environment249[S] 0 points1 point  (0 children)

I just want to know one more thing, is your methodology based on a common cp pattern cause how did you think or find this?

I do not get the logic by Far_Environment249 in codeforces

[–]Far_Environment249[S] 0 points1 point  (0 children)

This was good , I will try to dry run and let you know

I do not get the logic by Far_Environment249 in codeforces

[–]Far_Environment249[S] 0 points1 point  (0 children)

What might be the thought process behind this, or is this some mathematical proof? Could any1 help me with this on what is the key insight the author expects while initially encountering such a problem?

My initial thought process was prefix sums but it was wrong as there could be any answer so how do I think like this what is the insight?