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Calibration

- ์ปดํ“จํ„ฐ ๋น„์ „ ๊ด€๋ จ ์ˆ˜์—…์„ ๋“ฃ๋Š” ๋„์ค‘, ํ•„์ˆ˜๋กœ ์•Œ์•„์•ผ ํ•˜๋Š” ๋ถ€๋ถ„์ด๋ผ๊ณ  ์ƒ๊ฐ์ด ๋“ค์–ด์„œ ๋”ฐ๋กœ ์ •๋ฆฌํ•œ๋‹ค. ์‚ฌ์‹ค ์ด ๋ถ€๋ถ„์€ [๋‹คํฌ_ํ”„๋กœ๊ทธ๋ž˜๋จธ](https://darkpgmr.tistor...

  • ์ปดํ“จํ„ฐ ๋น„์ „ ๊ด€๋ จ ์ˆ˜์—…์„ ๋“ฃ๋Š” ๋„์ค‘, ํ•„์ˆ˜๋กœ ์•Œ์•„์•ผ ํ•˜๋Š” ๋ถ€๋ถ„์ด๋ผ๊ณ  ์ƒ๊ฐ์ด ๋“ค์–ด์„œ ๋”ฐ๋กœ ์ •๋ฆฌํ•œ๋‹ค. ์‚ฌ์‹ค ์ด ๋ถ€๋ถ„์€ ๋‹คํฌ_ํ”„๋กœ๊ทธ๋ž˜๋จธ ์ด๋ถ„์ด ์ •๋ฆฌ๋ฅผ ์ž˜ ํ•ด ๋†“์•˜๋‹ค. ๊ด‘ํ•™๊ณ„, ์˜์ƒ์ฒ˜๋ฆฌ ์ชฝ ๋ณผ๊บผ๋ฉด ์ด ๋ธ”๋กœ๊ทธ ์ฐธ์กฐ ํ•˜๋Š” ๊ฒƒ์„ ์ถ”์ฒœํ•œ๋‹ค.

#๊ณ ๋ฅธ ๊ฒƒ

#๋ชฉ์ฐจ

๋ชฉ์ฐจ๋‚ด์šฉ๋น„๊ณ ๋งํฌ
Transformer๋ฐ”๋กœ๊ฐ€๊ธฐ

์นด๋ฉ”๋ผ์˜ ์ขŒํ‘œ๊ณ„๋Š” ๋ฐ‘์— ์ฒ˜๋Ÿผ, World Coordinate, Camera Coordinate, Pixel Coordinate(Image Coordinate) ์ด๋ ‡๊ฒŒ ์žˆ๋‹ค.
![https://img1.daumcdn.net/thumb/R1280x0/?scode=mtistory2&fname=https%3A%2F%2Ft1.daumcdn.net%2Fcfile%2Ftistory%2F995410365E9F957133]

Calibration Parameters๋Š” intrinsic parameters, extrinsic parameters๋กœ ๋‚˜๋‰˜๋‹ค.

extrinsic parameters
extrinsic parameters๋Š” ์นด๋ฉ”๋ผ pose์— ๋Œ€ํ•œ ๊ฒƒ์ธ๋‹ค (Position, Orientation).

intrinsic parameters
intrinsic parameters๋Š” ์นด๋ฉ”๋ผ ๋‚ด๋ถ€ ํŒŒ๋ผ๋ฏธํ„ฐ์— ๋Œ€ํ•œ ๊ฒƒ์ด๋‹ค. (Focal length, Principal point, Distortion parameters)

Rigid
์ขŒํ‘œ ์‹œ์Šคํ…œ ๋ณ€ํ™˜์€ rigid transformation์œผ๋กœ ์ด๋ฃจ์–ด์ง„๋‹ค.
rigid transformation์ด๋ž€ scale, rotation, translation์œผ๋กœ ์ด๋ฃจ์–ด์ง„ ๋ณ€ํ™˜์„ ๋งํ•œ๋‹ค.
rigid ๋ž€ ๋œป์€ โ€˜๋‹จ๋‹จํ•œโ€™ ์ด๋ผ๋Š” ๋œป์ด๋‹ค.


Transformations์— ๋Œ€ํ•œ ๊ฐ„๋žตํ•œ ์„ค๋ช…

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