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๊ตฌ์„ฑ ์š”์†Œ ๋ฒ”์œ„
์ƒ‰์ƒ 0ยฐ(๋นจ๊ฐ•) ~ 360ยฐ(๋นจ๊ฐ•)
์ฑ„๋„ 0%(๋ฌด์ฑ„์ƒ‰) ~ 100%
๋ช…๋„ 0%(๊ฒ€์ •) ~ 100%(ํฐ์ƒ‰)
์˜์ƒ์ฒ˜๋ฆฌ๋ฅผ ์ด์šฉํ•œ ์†์ธ์‹ ๋งˆ์šฐ์Šค ์ œ์ž‘
Design of Hand Recognition Mouse using Image Processing
๋ฐฑํ˜•์ง„, ์ด์ข…ํ˜ธ
(Hyengjin Baek and Chongho Lee)
Abstract: This article describes a design of hand recognition mouse using image processing. Microsoft VX-1000 webcam
is used for image acquisition, openCV is used for hand recognition. We take images from the webcam and we can detect
skin area and convert these images to binary images including only skin area. In this images, we can detect central point
of hand and top point of finger using angle and distance from central point. This top point is used to find a point of
mouse. And we can count the number of fingers using contour function supplied from openVC. The number of fingers is
used for function of mouse. Finally, we can obtain hand recognition mouse.
Keywords: hand recognition, central point, top point of finger, the number of fingers, contour
I. ์„œ๋ก 
ํ˜„์žฌ ์˜ํ™”, ์˜ํ•™ ๋ถ„์•ผ ๋“ฑ ์—ฌ๋Ÿฌ ๋ถ„์•ผ์—์„œ ์˜์ƒ ์ฒ˜๋ฆฌ
๊ธฐ์ˆ ์ด ์‚ฌ์šฉ๋˜๊ณ  ์žˆ๋‹ค. ์˜์ƒ ์ฒ˜๋ฆฌ์˜ ๋Œ€ํ‘œ์ ์ธ ์ปจํ…์ธ ์ธ
๊ฐ€์ƒํ˜„์‹ค(Virtual Reality)์€ ์–ด๋–ค ํŠน์ •ํ•œ ํ™˜๊ฒฝ, ์ƒํ™ฉ
์„ ์ปดํ“จํ„ฐ๋ฅผ ์ด์šฉํ•˜์—ฌ ์‚ฌ์šฉ์ž๊ฐ€ ๋งˆ์น˜ ์‹ค์ œ ์ฃผ๋ณ€ ์ƒํ™ฉ๊ณผ
์ƒํ˜ธ์ž‘์šฉ์„ ํ•˜๊ณ  ์žˆ๋Š” ๊ฒƒ์ฒ˜๋Ÿผ ๋งŒ๋“ค์–ด ์ฃผ๋Š” ์ธ๊ฐ„๊ณผ ์ปดํ“จ
ํ„ฐ ๊ฐ„์˜ ์ธํ„ฐํŽ˜์ด์Šค์ด๋‹ค.
๋ณธ ๋…ผ๋ฌธ์—์„œ๋Š” ์ธ๊ฐ„๊ณผ ์ปดํ“จํ„ฐ ๊ฐ„์˜ ์ž…์ถœ๋ ฅ ์ธํ„ฐํŽ˜์ด
์Šค ๊ตฌํ˜„์„ ์œ„ํ•ด ์†์ธ์‹ ๋งˆ์šฐ์Šค๋ฅผ ์ œ์ž‘ํ•˜๊ณ ์ž ํ•˜์˜€๋‹ค.
ํ”ผ๋ถ€์ƒ‰ ์ถ”์ถœ์„ ์œ„ํ•ด HSV ์ƒ‰ ๊ณต๊ฐ„์„ ์ด์šฉํ•˜์˜€๊ณ , ์†๋“ฑ์˜
์ค‘์‹ฌ์ ์œผ๋กœ๋ถ€ํ„ฐ์˜ ๊ฑฐ๋ฆฌ์™€ ๊ฐ๋„๋ฅผ ์ด์šฉํ•˜์—ฌ ์†๊ฐ€๋ฝ ๋์ 
์„ ๊ตฌํ•˜์˜€๋‹ค. ๊ทธ๋ฆฌ๊ณ  ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜๋ฅผ ์„ธ๊ธฐ์œ„ํ•ด openCV์—
์„œ ์ œ๊ณตํ•˜๋Š” contour ํ•จ์ˆ˜๋ฅผ ์‚ฌ์šฉํ•˜์˜€๋‹ค. ๋งˆ์ง€๋ง‰์œผ๋กœ
์†๊ฐ€๋ฝ๊ฐœ์ˆ˜์— ๋”ฐ๋ผ ๋ฉ”์‹œ์ง€์ฒ˜๋ฆฌ๋ฅผ ํ•˜์—ฌ ๋งˆ์šฐ์Šค๊ธฐ๋Šฅ์„ ๊ตฌ
ํ˜„ํ•˜์˜€๋‹ค.
II. ๋ณธ๋ก 
1. ํ”ผ๋ถ€์ƒ‰ ์ถ”์ถœ
(1) HSV ์ƒ‰ ๊ณต๊ฐ„
HSV ์ƒ‰ ๊ณต๊ฐ„์ด๋ž€ ์ƒ‰์„ ํ‘œํ˜„ํ•˜๋Š” ํ•˜๋‚˜์˜ ๋ฐฉ๋ฒ•์ด์ž,
๊ทธ ๋ฐฉ๋ฒ•์— ๋”ฐ๋ผ ์ƒ‰์„ ๋ฐฐ์น˜ํ•˜๋Š” ๋ฐฉ์‹์ด๋‹ค. ์ƒ‰์ƒ(Hue),
์ฑ„๋„(Saturation), ๋ช…๋„(Brightness, Value)์˜ ์ขŒ๋ฃŒ๋ฅผ
์จ์„œ ํŠน์ •ํ•œ ์ƒ‰์„ ์ง€์ •ํ•œ๋‹ค. HSB๋กœ ๋ถˆ๋ฆฌ๋Š” ๊ฒฝ์šฐ๋„ ์žˆ
๋‹ค. ์ด๋Š” ํ‘œ 1์—์„œ ๋‚˜ํƒ€๋‚ด์—ˆ๋‹ค.
ํ‘œ 1. HSV ์ƒ‰ ๊ณต๊ฐ„
(2) ์˜์ƒ๋‚ด์˜ ํ”ผ๋ถ€์ƒ‰ ์ถ”์ถœ
Independentํ•œ Hue๊ฐ’์„ ์ถ”์ถœํ•˜๊ธฐ ์œ„ํ•ด ๊ทธ๋ฆผ 1๊ณผ ๊ฐ™
์ด ํ”ผ๋ถ€์ƒ‰์˜ Hue๊ฐ’์„ ๋จผ์ € ์ž…๋ ฅ๋ฐ›๋Š”๋‹ค. ๊ทธ ๋‹ค์Œ ์›น์บ ์œผ
๋กœ๋ถ€ํ„ฐ ์ž…๋ ฅ๋ฐ›์€ RGB์˜์—ญ ๊ธฐ๋ฐ˜์˜ Skin Color๊ฐ’์„ HSV
์˜์—ญ ๊ธฐ๋ฐ˜์˜ Skin Color๊ฐ’์œผ๋กœ ๋ณ€ํ™˜ํ•˜์—ฌ ํ”ผ๋ถ€์ƒ‰์˜ Hue
๊ฐ’๊ณผ ์ผ์น˜ํ•˜๋Š” ์˜์—ญ์„ ํ”ผ๋ถ€์ƒ‰ ์˜์—ญ์œผ๋กœ ์ถ”์ถœํ•˜๊ฒŒ ๋œ๋‹ค.
(a) Hue๊ฐ’ ์ž…๋ ฅ (b) ํžˆ์Šคํ† ๊ทธ๋žจ
๊ทธ๋ฆผ 1. Hue๊ฐ’ ์ž…๋ ฅ๊ณผ ํžˆ์Šคํ† ๊ทธ๋žจ
(3) ์ด์ง„์˜์ƒ
ํ”ผ๋ถ€์ƒ‰ ์˜์—ญ์œผ๋กœ ์ถ”์ถœ๋œ Hue๊ฐ’ ์˜์—ญ์˜ imageData๊ฐ’
์œผ๋กœ 1๋กœ setting ํ•˜๊ณ , ํ”ผ๋ถ€์ƒ‰ ์˜์—ญ์ด ์•„๋‹Œ ๋ถ€๋ถ„์„ 0
์œผ๋กœ setting ํ•˜๋ฉด ๊ทธ๋ฆผ 2์™€ ๊ฐ™์ด ์ด์ง„์˜์ƒ์„ ๊ตฌํ•  ์ˆ˜
์žˆ๋‹ค.
(a) Hue ์˜์ƒ (b) ์ด์ง„์˜์ƒ
๊ทธ๋ฆผ 2. Hue๊ฐ’๊ณผ ํ”ผ๋ถ€์˜์—ญ์˜ ์ด์ง„์˜์ƒ
2. ์นจ์‹๊ณผ ํŒฝ์ฐฝ ์—ฐ์‚ฐ
(1) ์นจ์‹ ์—ฐ์‚ฐ
๋ฌผ์ฒด์— ๋Œ€ํ•ด ๋ฐฐ๊ฒฝ์„ ํ™•์žฅ์‹œํ‚ค๊ณ  ๋ฌผ์ฒด์˜ ์ฝ”๊ธฐ๋ฅผ ์ถ•์†Œ
ํ•˜๋Š” ์—ญํ• ์„ ํ•˜๋ฉฐ, ์นจ์‹ ๋งˆ์Šคํฌ๋ฅผ ์ด์šฉํ•˜์—ฌ ์—ฐ์‚ฐ์‹œ ํฐ
๋ฌผ์ฒด์˜ ๋‘˜๋ ˆ๋กœ๋ถ€ํ„ฐ ํ•œ ํ”ฝ์…€์„ ์—†์• ๋Š” ํšจ๊ณผ๋ฅผ ๊ฐ–๋Š”๋‹ค.
์•„๋ž˜ ์ˆ˜์‹(1)์„ openCV์—์„œ๋Š” cvDilate ํ•จ์ˆ˜๋กœ ์ œ๊ณตํ•œ
๋‹ค.
๎€€โŠ—๎€ ๎‡ ๎ƒผ ๎ ๎€ ๎ˆ ๎ƒผ ๎• ๎€€ (1)
(2) ํŒฝ์ฐฝ ์—ฐ์‚ฐ
๋ฌผ์ฒด์˜ ์ตœ ์™ธ๊ณฝ ํ”ฝ์…€์„ ํ™•์žฅํ•˜๋Š” ์—ญํ• ์„ ํ•œ๋‹ค. ๋”ฐ๋ผ
์„œ, ๋ฌผ์ฒด์˜ ์ฝ”๊ธฐ๋Š” ํ™•์žฅ ๋˜๊ณ  ๋ฐฐ๊ฒฝ์€ ์ถ•์†Œ ๋œ๋‹ค. ํŒฝ์ฐฝ
๋งˆ์Šคํฌ๋Š” ํฐ์ƒ‰ ๋ฌผ์ฒด์˜ ๋‘˜๋ ˆ์— ํ•œ ํ”ฝ์…€์„ ๋”ํ•˜๋Š” ์—ญํ• ์„
ํ•˜๋Š”๋ฐ 3 * 3 ๋งˆ์Šคํฌ์™€ ๋˜‘๊ฐ™์€ ์˜์—ญ์„ ๊ฐ€์ง€๋Š” ์˜์—ญ์—
๋Œ€ํ•ด์„œ๋Š” ๊ฐ’์„ ๋ฐ”๊พธ์ง€ ์•Š์œผ๋ฉฐ 1๊ฐœ ์ด์ƒ์˜ ์„œ๋กœ ๋‹ค๋ฅธ ํ”ฝ
์…€์ด ์กด์žฌํ•  ๊ฒฝ์šฐ ๋งˆ์Šคํฌ์˜ ๊ฐ€์šด๋ฐ ํ”ฝ์…€์— ํฐ์ƒ‰ ๊ฐ’์„
ํ• ๋‹น ํ•˜๋Š” ์—ญํ• ์„ ํ•œ๋‹ค. ์•„๋ž˜ ์ˆ˜์‹(2)๋ฅผ openCV์—์„œ๋Š”
cvErode ํ•จ์ˆ˜๋กœ ์ œ๊ณตํ•œ๋‹ค.
๎€€โŠ•๎€ ๎‡ ๎€€ ๎ƒง
โŠ– ๎„๎† ๎€๎…๎ƒง
(2)
(3) ์ฑ„์›€์—ฐ์‚ฐ
ํŒฝ์ฐฝ ์—ฐ์‚ฐ ํ›„ ์นจ์‹ ์—ฐ์‚ฐ ์ˆ˜ํ–‰์„ ํ•จ์œผ๋กœ์จ ์˜์ƒ์˜ ์™ธ
๊ณฝ์„  ๋ถ€๋ถ„์„ ๋ถ€๋“œ๋Ÿฝ๊ฒŒ ๋งŒ๋“ค๋ฉฐ, ๊ฐ์ฒด์˜ ํ˜•ํƒœ์™€ ํฌ๊ธฐ๋Š”
๋ณด์กด๋˜๊ณ  ์ž‘์€ ๊ตฌ๋ฉ์ด๋‚˜ ํ‹ˆ์„ ์ฑ„์šฐ๋Š” ์—ญํ• ์„ ํ•œ๋‹ค.
์ด์ง„์˜์ƒ์„ ์ทจ๋“ํ•˜๋ฉด ์žก์Œ์ด ๋งŽ์ด ๋ฐœ์ƒํ•˜๋Š”๋ฐ ์ด๋Š”
contour ํ•จ์ˆ˜์—์„œ ์น˜๋ช…์ ์ธ ์˜ค๋ฅ˜๋ฅผ ๋ฐœ์ƒ์‹œํ‚ค๋Š” ์›์ธ์ด
๋  ์ˆ˜ ์žˆ๊ธฐ ๋•Œ๋ฌธ์— ์ฑ„์›€์—ฐ์‚ฐ์„ ์ด์šฉํ•˜์—ฌ ์ด๋ฅผ ์ œ๊ฑฐ ํ•˜
์˜€๋‹ค.
๊ทธ๋ฆผ 3. ์ฑ„์›€์—ฐ์‚ฐ ์ˆ˜ํ–‰์ „์˜ ์ด์ง„ ์˜์ƒ
๊ทธ๋ฆผ 4. ์ฑ„์›€์—ฐ์‚ฐ ์ˆ˜ํ–‰ํ›„์˜ ์ด์ง„ ์˜์ƒ
3. ์†๊ฐ€๋ฝ ๋์ 
(1) ์†์˜ ์ค‘์‹ฌ์ 
์†๊ฐ€๋ฝ ๋์ ์„ ๊ตฌํ•˜๊ธฐ ์œ„ํ•ด์„œ๋Š” ์†์˜ ์ค‘์‹ฌ์ ๋ถ€ํ„ฐ ๊ตฌ
ํ•ด์•ผ ํ•œ๋‹ค. ์†์˜ ์ค‘์‹ฌ์ ์€ ์ด์ง„์˜์ƒ์˜ ๋ฌด๊ฒŒ ์ค‘์‹ฌ์„ ์ด
์šฉํ•ด์„œ ๊ตฌํ•  ์ˆ˜ ์žˆ๋‹ค. ์ด์ง„ ์˜์ƒ์—์„œ ์†์˜์—ญ์˜ ๋ชจ๋“  ์ขŒ
ํ‘œ์˜ ํ•ฉ์„ ์†์˜์—ญ์˜ ํ”ฝ์…€์˜ ์ˆ˜๋กœ ๋‚˜๋ˆ„๋ฉด ๋ฌด๊ฒŒ ์ค‘์‹ฌ์„
๊ตฌํ•  ์ˆ˜ ์žˆ๋‹ค. ์ด๋Š” ์ˆ˜์‹(1)๊ณผ ๊ฐ™์ด x, y์ขŒํ‘œ์— ๊ฐ๊ฐ
์ ์šฉํ•œ๋‹ค.
๎€๎ƒท ๎„๎€—๎’๎€˜๎… ๎‡ ๎ง๎ƒฏ ๎‡ ๎€ด
๎ƒฒ
๎€๎„๎ƒผ๎ƒญ ๎’ ๎ƒฝ๎ƒญ๎…
๎€—๎ƒง ๎‡ ๎€—๎”๎ƒฒ
๎€˜๎ƒง ๎‡ ๎€˜๎”๎ƒฒ
๎€‚๎€„๎€๎€“๎€„๎€‘๎„๎€—๎’๎€˜๎… ๎‡ ๎€๎ƒง๎„๎€—๎ƒง ๎’๎€˜๎ƒง ๎…
(3)
์ˆ˜์‹(3)์—์„œ n์€ ์†์˜์—ญ ํ”ฝ์…€์˜ ์ˆ˜๋ฅผ ์˜๋ฏธํ•œ๋‹ค.
(2) ์†๊ฐ€๋ฝ ๋์ 
๋งˆ์šฐ์Šค ํฌ์ธํ„ฐ ์—ญํ• ์„ ํ•˜๋Š” ์†๊ฐ€๋ฝ ๋์ ์€ ์†์˜ ์ค‘
์‹ฌ์ ์œผ๋กœ๋ถ€ํ„ฐ์˜ ๊ฑฐ๋ฆฌ์™€ ๊ฐ๋„๋ฅผ ์ด์šฉํ•˜์—ฌ ๊ตฌํ•œ๋‹ค. ์ž…๋ ฅ
์˜์ƒ์—์„œ ๊ฒ€์ง€ ์†๊ฐ€๋ฝ์€ 3์‚ฌ๋ถ„๋ฉด์ธ 240ยฐ ~ 275ยฐ์™€ ์ค‘์‹ฌ
์ ์œผ๋กœ๋ถ€ํ„ฐ 140ํ”ฝ์…€ ์ดํ•˜์— ์œ„์น˜ํ•˜๊ฒŒ ๋œ๋‹ค. ๊ทธ๋ž˜์„œ ์ด
์˜์—ญ์— ์กด์žฌํ•˜๋Š” ์†๋ถ€๋ถ„์„ ๋ชจ๋‘ ์Šค์บ”ํ•˜์—ฌ Y์ขŒํ‘œ๊ฐ€ ๊ฐ€
์žฅ ์ž‘์€ ์ขŒํ‘œ์ ์„ ๊ตฌํ•˜์—ฌ ์†๋์ ์œผ๋กœ ์ง€์ •ํ•˜์˜€๋‹ค.
๊ทธ๋ฆผ 5. ๊ฑฐ๋ฆฌ์™€ ๊ฐ๋„๋ฅผ ์ด์šฉํ•œ ๋์  ์ฐพ๋Š” ์ฝ”๋“œ
๊ทธ๋ฆผ 5์—์„œ์˜ TRANS2RAD๊ฐ’์€ 0.01745329์ด๊ณ .
definedValue๊ฐ’์€ 255๋กœ setting ๋˜์—ˆ๋‹ค. ์ดˆ๊ธฐ์— ceta
๊ฐ’์„ 270ยฐ๋กœ ํ…Œ์ŠคํŠธํ•˜์˜€๋Š”๋ฐ ์ธ์‹๋ฅ ์„ ๋†’์ด๊ธฐ ์œ„ํ•ด
275ยฐ๋กœ ์ˆ˜์ •ํ•˜๊ฒŒ ๋˜์—ˆ๋‹ค.
์ด๋ ‡๊ฒŒ ๋‘ ์ ์„ ์ฐพ์•„ ์‹ค์‹œ๊ฐ„์œผ๋กœ ์˜์ƒ์ฒ˜๋ฆฌ๊ฐ€ ์ด๋ฃจ์–ด
์ง€๊ณ  ์žˆ๋‹ค๋Š” ๊ฒƒ์„ ํ™•์ธํ•˜๊ธฐ ์œ„ํ•ด cvCircle ํ•จ์ˆ˜๋ฅผ ์ด์šฉ
ํ•˜์—ฌ ๊ทธ๋ฆผ 6๊ณผ ๊ฐ™์ด ์›์„ ๊ทธ๋ ค์ฃผ์—ˆ๋‹ค.
Step1
์ˆœ์ฐจํƒ์ƒ‰ํ•˜๋ฉด์„œ Labeling๋œ Object
๋ฅผ ๋งŒ๋‚˜๋ฉด ํ์— ๋„ฃ๋Š”๋‹ค.
Step2
5-๋ฐฉํ–ฅ ํƒ์ƒ‰์„ ํ•˜์—ฌ ๊ฐ™์€ Label ๋ฒˆ
ํ˜ธ์˜ ํ”ฝ์…€์„ ๋งŒ๋‚˜๋ฉด ํ์— ๋„ฃ๋Š”๋‹ค.
Step3
Step2๋ฅผ ๋ฐ˜๋ณตํ•˜๋ฉด์„œ ์‹œ์ž‘์ ์„ ๋งŒ๋‚˜
๋ฉด Object๋กœ ์ธ์‹ํ•˜๊ณ  ์‹œ์ž‘์ ์„ ๋งŒ
๋‚˜์ง€ ๋ชปํ•˜๋ฉด ์ œ๊ฑฐ ํ•œ๋‹ค.
๊ทธ๋ฆผ 6. ์ค‘์‹ฌ์ ๊ณผ ๋์ 
4. ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜
(1) ๋ถ€๋ถ„ ์ด๋ฏธ์ง€
์†์ค‘์‹ฌ์ ๊ณผ ์†๋์ ์„ ์ฐพ๋Š” ๊ณผ์ •์ด ๋๋‚˜๋ฉด ์†๊ฐ€๋ฝ์˜
๊ฐœ์ˆ˜๋ฅผ ์ถ”์ถœํ•˜๋Š” ์ž‘์—…์„ ํ•˜๊ฒŒ ๋œ๋‹ค. ์†๊ฐ€๋ฝ์˜ ๊ฐœ์ˆ˜๋ฅผ
์ถ”์ถœํ•˜๊ธฐ ์œ„ํ•ด์„œ๋Š” ์ค‘์‹ฌ์ ์œผ๋กœ๋ถ€ํ„ฐ 90ํ”ฝ์…€ ๋–จ์–ด์ง„ ๊ณณ
์—์„œ๋ถ€ํ„ฐ 100ํ”ฝ์…€๊นŒ์ง€์˜ ์˜์—ญ์ค‘ ์†์˜์—ญ์ธ ๋ถ€๋ถ„์„ ์ž„์˜
์˜ ์˜์ƒ ํฌ์ธํ„ฐ์— ์ €์žฅํ•˜๊ฒŒ ๋œ๋‹ค. ์ด๋ฅผ ๋ถ€๋ถ„ ์ด๋ฏธ์ง€๋ผ
ํ•œ๋‹ค. ๋ถ€๋ถ„ ์ด๋ฏธ์ง€์—๋Š” ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜ ๋งŒํผ์˜ ์ด๋ฏธ์ง€๊ฐ€
์ €์žฅ ๋˜๊ฒŒ ๋œ๋‹ค. ์ด ๋ถ€๋ถ„ ์ด๋ฏธ์ง€๋ฅผ openCV์—์„œ ์ œ๊ณต
ํ•˜๋Š” contour ํ•จ์ˆ˜๋ฅผ ์ด์šฉํ•˜์—ฌ contouring ํ•˜๋ฉด์„œ
Object๋ฅผ ์ฐพ์„ ๋•Œ๋งˆ๋‹ค count๋ฅผ 1์”ฉ ์ฆ๊ฐ€์‹œํ‚ด์œผ๋กœ์จ ์†
๊ฐ€๋ฝ์˜ ๊ฐœ์ˆ˜๋ฅผ ๊ตฌํ•  ์ˆ˜ ์žˆ๋‹ค.
(2) Contour
contour ํ•จ์ˆ˜๋Š” ์œค๊ณฝ ์ •๋ณด๋ฅผ ์–ป๊ธฐ ์œ„ํ•ด์„œ Edge
Tracing ๋˜๋Š” Boundary Flowing ์ด๋ผ๊ณ ๋„ ๋ถˆ๋ฆฌ๋Š” ์•Œ
๊ณ ๋ฆฌ์ฆ˜์„ ์ˆ˜ํ–‰ํ•œ๋‹ค. Labeling๋œ Object๊ฐ€ n๊ฐœ๊ฐ€ ์กด์žฌ
ํ•œ๋‹ค๋ฉด ๊ฐ๊ฐ์˜ ํ•ด๋‹นํ•˜๋Š” Label ๋ณ„๋กœ Edge๋ฅผ ์ฐพ๋Š”๋‹ค.
ํ”ฝ์…€์„ ์ฐพ๋Š” ๋ฐฉ๋ฒ•์—๋Š” CW(์‹œ๊ณ„๋ฐฉํ–ฅ)๊ณผ CCW(์‹œ๊ณ„๋ฐ˜๋Œ€
๋ฐฉํ–ฅ)์ด ์žˆ๋Š”๋ฐ ์ด ๋‘ ๋ฐฉ๋ฒ•์€ ์ „ํ˜€ ๋‹ค๋ฅธ contour ์ •๋ณด
๋ฅผ ์ „๋‹ฌํ•œ๋‹ค. ๋ณธ ํ”„๋กœ์ ํŠธ์—์„œ๋Š” ๊ทธ๋ฆผ 7๊ณผ ๊ฐ™์ด CW๋ฐฉ
๋ฒ•์œผ๋กœ ์ง„ํ–‰ ๋ฐฉํ–ฅ์˜ ์™ผ์ชฝ์œผ๋กœ 90ยฐ๊บฝ์ธ ๋ฐฉํ–ฅ์—์„œ๋ถ€ํ„ฐ
45ยฐ์”ฉ 5-๋ฐฉํ–ฅ์ด๋‹ค. Contouring ํ•˜๋Š” ๊ณผ์ •์€ ํ‘œ 2์™€ ๊ฐ™
๊ณ  Pseudo Code๋Š” ๊ทธ๋ฆผ 8๊ณผ ๊ฐ™๋‹ค.
ํ‘œ 2. Contoring ๊ณผ์ •
๊ทธ๋ฆผ 7. ์‹œ๊ณ„๋ฐฉํ–ฅ Search
๊ทธ๋ฆผ 8. Contour Pseudo Code
openCV์˜ contourํ•จ์ˆ˜๋Š” CvMemStorage์— ๋ฉ”๋ชจ
๋ฆฌ๋ฅผ ํ• ๋‹นํ•˜๊ณ  CvSeq๋ผ๋Š” ๋ฐฐ์—ด์— contour์ •๋ณด๋ฅผ ์ €์žฅ
ํ•œ๋‹ค. ๊ทธ๋‹ค์Œ cvFindcontourํ•จ์ˆ˜๋ฅผ ์ด์šฉํ•˜์—ฌ labeling
๋œ ๊ฐ์ฒด๋ฅผ ํ•˜๋‚˜์”ฉ ์ฐพ์œผ๋ฉด์„œ ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜๋ฅผ ์…€ ์ˆ˜ ์žˆ๋‹ค.
๊ทธ๋ฆผ 9๋Š” ์ด๋ฒˆ ํ”„๋กœ์ ํŠธ์— ์‚ฌ์šฉ๋œ contour ์ฝ”๋“œ์ด๊ณ ,
๊ทธ๋ฆผ 10์€ ๋ถ€๋ถ„ ์ด๋ฏธ์ง€์ด๋‹ค.
๊ทธ๋ฆผ 9. Contour source code
๊ทธ๋ฆผ 10. ๋ถ€๋ถ„ ์ด๋ฏธ์ง€
๊ทธ๋ฆผ 11. ์ž…๋ ฅ์˜์ƒ๊ณผ ๊ฒฐ๊ณผ ์˜์ƒ
๊ทธ๋ฆผ 11์€ RGB๊ฐ’์˜ ์ž…๋ ฅ ์˜์ƒ์„ ์›น์บ ์œผ๋กœ๋ถ€ํ„ฐ ๋ฐ›
์•„์™€ HSV๊ฐ’์œผ๋กœ ๋ณ€ํ™˜ํ•˜์—ฌ ํ˜„์žฌ๊นŒ์ง€์˜ ๋ชจ๋“  ์˜์ƒ์ฒ˜๋ฆฌ
๊ณผ์ •์„ ์ˆ˜ํ–‰ํ•œ ํ›„์˜ ๊ฒฐ๊ณผ ์˜์ƒ์ด๋‹ค. ํ”ผ๋ถ€์ƒ‰์„ ์ถ”์ถœํ•˜์—ฌ
์ด์ง„ํ™” ํ•˜์˜€๊ณ , ์ด ์˜์ƒ์— ์ฑ„์›€์—ฐ์‚ฐ์„ ์ˆ˜ํ–‰ํ•˜์—ฌ ๋…ธ์ด์ฆˆ
๋ฅผ ์ œ๊ฑฐ ํ•˜์˜€๋‹ค. ์† ์ค‘์‹ฌ์ ๊ณผ ๋์ ์„ ๊ตฌํ•˜์—ฌ ์›์œผ๋กœ ํ‘œ
ํ˜„ ํ•˜์˜€์œผ๋ฉฐ, contour ํ•จ์ˆ˜๋ฅผ ์ด์šฉํ•˜์—ฌ ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜๋ฅผ
์„ธ์–ด ์ด๋ฅผ ์ˆซ์ž๋กœ ํ‘œ๊ธฐ ํ•˜์˜€๋‹ค.
5. ๋งˆ์šฐ์Šค ๊ธฐ๋Šฅ ๊ตฌํ˜„
(1) ํฌ์ธํ„ฐ ๊ตฌํ˜„
์†๊ฐ€๋ฝ ๋์ ์˜ ์ขŒํ‘œ๋ฅผ ์ด์šฉํ•˜์—ฌ ๋งˆ์šฐ์Šค ํฌ์ธํ„ฐ์˜ ์ขŒ
ํ‘œ๋ฅผ ๊ตฌํ˜„ํ•œ๋‹ค. ํ˜„์žฌ ์ž…๋ ฅ ์˜์ƒ์˜ ํฌ๊ธฐ๊ธฐ 320 * 240
ํ”ฝ์…€์ด๊ธฐ ๋•Œ๋ฌธ์— ์ถœ๋ ฅ ํ™”๋ฉด์˜ ํฌ๊ธฐ์— ๋งž๊ฒŒ ์ ์šฉ์‹œํ‚ค๊ธฐ
์œ„ํ•ด์„œ ๊ทธ๋ฆผ 12์™€ ๊ฐ™์ด ์ƒ๋Œ€์ขŒํ‘œ๋ฅผ ์ด์šฉํ•œ๋‹ค.
๊ทธ๋ฆผ 12. ์ƒ๋Œ€์ขŒํ‘œ๋ฅผ ์ด์šฉํ•œ ์ขŒํ‘œ๊ฐ’
(2) ํฌ์ธํ„ฐ ๋ณด์ •
์‹ค์‹œ๊ฐ„์œผ๋กœ ์ทจ๋“ํ•˜๋Š” ์†๋ ์ขŒํ‘œ๋ฅผ ์ด์šฉํ•œ ๋งˆ์šฐ์Šค ํฌ
์ธํ„ฐ๋Š” ๋งŽ์€ ๋–จ๋ฆผ์ด ์žˆ๊ธฐ ๋•Œ๋ฌธ์— ์‚ฌ์šฉ์ž๊ฐ€ ์–ด์ƒ‰ํ•จ์„ ๋Š
๋ผ๊ฒŒ ๋œ๋‹ค. ์ด๋ฅผ ๊ฐœ์„ ํ•˜๊ธฐ ์œ„ํ•˜์—ฌ ํฌ์ธํ„ฐ ๋ณด์ •์„ ํ•˜์˜€
๋‹ค. ํฌ์ธํ„ฐ ๋ณด์ •์ด๋ž€ ํฌ์ธํ„ฐ์˜ ์ด์ „ ๊ฐ’๊ณผ ํ˜„์žฌ ๊ฐ’์ด ๊ฐ™
์€ ํ‰๊ท ๊ณผ ํ‘œ์ค€ํŽธ์ฐจ๋ฅผ ๊ฐ–๋„๋ก ํ•˜๋Š” ๊ฒƒ์„ ๋œปํ•œ๋‹ค.
๊ทธ๋ฆผ 13. ํฌ์ธํ„ฐ ๋ณด์ • ์ฝ”๋“œ
๊ทธ๋ฆผ 13์—์„œ alpCenter๊ฐ’์€ 0.6์ด๋‹ค.
(3) Move์™€ Click ๊ตฌํ˜„
์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜ ์ •๋ณด๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ๋Š” finger_count ๋ณ€์ˆ˜
์˜ ๊ฐ’์ด 1์ผ ๋•Œ์—๋Š” MOVE์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œํ‚ค๊ณ , ๊ฐ’์ด
1์—์„œ 2๊ฐ€ ๋  ๋•Œ LEFTDOWN์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œํ‚ค๋ฉฐ ๊ฐ’
์ด 2์—์„œ ๋‹ค์‹œ 1์ด ๋  ๋•Œ LEFTUP์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œ์ผœ
๋งˆ์šฐ์Šค์˜ Click ๊ธฐ๋Šฅ์„ ๊ทธ๋ฆผ 14์™€ ๊ฐ™์ด ๊ตฌํ˜„ํ•  ์ˆ˜ ์žˆ
๋‹ค.
๊ทธ๋ฆผ 14. MOVE์™€ CLICK ์ด๋ฒคํŠธ ๊ตฌํ˜„ ์ฝ”๋“œ
์ด์ฒ˜๋Ÿผ ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜์— ๋”ฐ๋ฅธ ๋งˆ์šฐ์Šค ์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œ
์ผœ ๊ธฐ์กด์— ์‚ฌ์šฉํ•ด ์˜ค๋˜ ๋งˆ์šฐ์Šค์˜ ๊ธฐ๋Šฅ์„ ๊ตฌํ˜„ ํ•  ์ˆ˜ ์žˆ
์Œ์„ ์•Œ ์ˆ˜ ์žˆ๋‹ค. ์šฐ ํด๋ฆญ๋„ ๊ฐ™์€ ๋ฐฉ๋ฒ•์œผ๋กœ ๊ตฌํ˜„ ํ•  ์ˆ˜
์žˆ์Œ์„ ์•Œ ์ˆ˜ ์žˆ๊ณ , MOVE์™€ CLICK ๊ธฐ๋Šฅ์„ ์กฐํ•ฉํ•˜์—ฌ
DRAG ๊ธฐ๋Šฅ ์—ญ์‹œ ๊ตฌํ˜„ ํ•  ์žˆ๋‹ค.
6. ์ œ์ž‘๋œ ๋งˆ์šฐ์Šค ํ…Œ์ŠคํŠธ
๊ทธ๋ฆผ 15. Move ํ…Œ์ŠคํŠธ
๊ทธ๋ฆผ 16. Click ํ…Œ์ŠคํŠธ
๋งˆ์šฐ์Šค ํฌ์ธํ„ฐ ์ด๋™ ํ›„ ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜๋ฅผ 2๊ฐœ๋กœ ๋งŒ๋“ค
์–ด LEFTDOWN ์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œํ‚ค๊ณ , ๋‹ค์‹œ 1๊ฐœ๋กœ ๋งŒ
๋“ค์–ด LEFTUP ์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œ์ผœ ๋งˆ์šฐ์Šค Click ๊ธฐ๋Šฅ
์„ ํ…Œ์ŠคํŠธ ํ•  ์ˆ˜ ์žˆ๋‹ค.
III. ๊ฒฐ๋ก 
์˜์ƒ์ฒ˜๋ฆฌ์˜ ๊ฐ€์žฅ ํฅ๋ฏธ๋กœ์šด ๋ถ„์•ผ ์ค‘ ํ•˜๋‚˜์ธ ์˜์ƒ์ธ์‹
์˜ ์‘์šฉ ๊ธฐ์ˆ ๋กœ๋Š” ์–ผ๊ตด ๋ฐ ํ‘œ์ • ์ธ์‹, ์ œ์Šค์ฒ˜์ธ์‹, ๊ฐ€
์ƒํ˜„์‹ค ๋“ฑ์ด ์žˆ์œผ๋ฉฐ ๊ทผ๋ž˜์— ๋“ค์–ด์„œ ๊ฐœ์ธ์˜ ๋…ํŠนํ•œ ์‹ ์ฒด
์  ํŠน์ง•์ด๋‚˜ ์Šต๊ด€ ๋“ฑ์„ ์ด์šฉํ•˜์—ฌ ๊ฐœ์ธ์˜ ์‹ ์›์„ ํ™•์ธํ•˜
๋Š” ๋ฐฉ๋ฒ•์ธ ์ƒ์ฒด์ธ์‹(Bio metrics)์— ๋Œ€ํ•œ ๊ด€์‹ฌ๊ณผ ์ค‘์š”
์„ฑ์ด ๋”์šฑ ์ฆ๋Œ€๋˜๊ณ  ์žˆ๋‹ค.
๋ณธ ๋…ผ๋ฌธ์—์„œ๋Š” openCV๋ฅผ ์ด์šฉํ•˜์—ฌ ์†์ธ์‹ ๋งˆ์šฐ์Šค๋ฅผ
์ œ์ž‘ํ•ด ๋ณด์•˜๋‹ค. ์†์ธ์‹ ๋งˆ์šฐ์Šค๋ฅผ ์ œ์ž‘ํ•˜๋ฉด์„œ ์˜์ƒ์ฒ˜๋ฆฌ
๊ณผ์ •์„ ์ดํ•ดํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค. ๋˜ํ•œ ์‚ฌ์šฉ์ž ๋งˆ๋‹ค ๋‹ค๋ฅธ ํ”ผ๋ถ€
์ƒ‰์„ ์ธ์‹ํ•˜๊ธฐ ์œ„ํ•ด Independentํ•œ Hue๊ฐ’์„ ์ด์šฉํ•˜์—ฌ
์กฐ๊ธˆ ๋” ํšจ์œจ์ ์ธ ํ”„๋กœ์ ํŠธ๋ฅผ ๊ตฌํ˜„ ํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค. ๊ทธ๋ฆฌ
๊ณ  ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜๋ฅผ ์ฐพ๋Š” ๋ถ€๋ถ„์—์„œ ๋งŽ์€ ํ…Œ์ŠคํŠธ ์‹œ๊ฐ„์ด
ํ•„์š” ํ–ˆ๋‹ค. ๋ฏธ์„ธํ•œ ๊ฐ๋„์™€ ๊ฑฐ๋ฆฌ๋ฅผ ํ…Œ์ŠคํŠธ์™€ ํ•จ๊ป˜ ๊ตฌํ˜„
ํ•ด ๊ฐ€๋ฉด์„œ ์†๊ฐ€๋ฝ์„ ์ฐพ๋Š”๋ฐ ์ตœ์ ํ™”๋œ ๊ฐ๋„์™€ ๊ฑฐ๋ฆฌ๋ฅผ ๊ตฌ
ํ–ˆ๊ธฐ ๋•Œ๋ฌธ์— ๋†’์€ ์ธ์‹๋ฅ ์„ ํ™•์ธํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค.
๋ณธ ๋…ผ๋ฌธ์˜ ์—ฐ๊ตฌ๋Š” ์ €๊ฐ€์˜ ์žฅ๋น„๋ฅผ ์‚ฌ์šฉํ•˜์˜€์œผ๋ฉฐ ํŠน์ •
ํ•œ ์ž…๋ ฅ ์˜์ƒ์„ ์š”๊ตฌํ•˜์ง€ ์•Š์•˜๊ณ , ๋ˆ„๊ตฌ๋‚˜ ์‰ฝ๊ฒŒ ํ…Œ์ŠคํŠธ
ํ•˜๊ณ  ์ดํ•ดํ•  ์ˆ˜ ์žˆ๋„๋ก ๊ตฌํ˜„ ๋˜์–ด ์žˆ์œผ๋ฏ€๋กœ ์˜์ƒ์ฒ˜๋ฆฌ
๋ถ„์•ผ์—์„œ ์†์ธ์‹ ๊ธฐ์ดˆ ์ž๋ฃŒ๋กœ์„œ ํ™œ์šฉ๋  ์ˆ˜ ์žˆ์„ ๊ฒƒ์ด๋ผ
์ƒ๊ฐ๋œ๋‹ค.
IV. ์ฐธ๊ณ ๋ฌธํ—Œ
[1] T.Kondo and H.Yan, "Automatic human face detection
and recognition under non-uniform illumination,"
Patern Recognition Letter, vol. 32, pp.1707-1718,
1999.
[2] M. Yagi and T. Shibata, "Human-Perception-Like
Image Recognition System Based on the Associative
Processor Architecture," in the Proc. of 11th European
Signal Processing Conference (EUSIPCO 2002), pp.
I-103-I-106, Sep. 2002
[3] A. Albiol, C.A. Bouman, and E.J. Delp, "Face
detection for pseudo-semantic labeling in video
database," in IEEE Int. Conference on Image
Processing, Kobe, Japan, October 1999
[4] M-H Yang and N. Ahuja, "Detecting human faces in
color images," in IEEE International Conference on
Image Processing, Chicago, IL, October 4-7 1998, pp.
127-130.
[5] V.Vilaplana, F. Marques, P. Salembier, and L. Garrido,
"Region-based segmentation and tracking of human
faces," in European Signal Processing, Rhodes,
September 1998, pp. 593-602.
[6] S. Beucher and F. Meyer, Mathematical Morphology
in Image Processing, chapter 12. The morphological
Approach the Segmentation: The Watershed
Transformation, pp. 433-481, Marcel Dekker Inc.,
1993.
[7] R. Brunelli, T. Poggio, "Face Recognition : Features
vs. Templates", IEEE Trans. on PAMI, vol. 15, no.
15, pp. 1042-1052, 1993.
[8] Rama Chellappa, Charles L. Wilson, Saad Sirohey, "
Human and Machine Recognition of Faces : A
Survey". Proceedings of The IEEE, vol. 83, no. 5,
1995
[9] B. Takacs, H. Wechsler, "Face Recognition Using
Binary Image Metrics", Automatic Face and Gesture
Recognition, 1998. Proceedings. Third IEEE
International Conference on, 14-16 pp. 249-299 April
1998
๋ฐฑ ํ˜• ์ง„
2001๋…„ ๊ฑฐ์ฐฝ๋Œ€์„ฑ๊ณ ๋“ฑํ•™๊ต ์กธ์—….
2001๋…„โˆผํ˜„์žฌ ์ธํ•˜๋Œ€ํ•™๊ต ์ •๋ณดํ†ต์‹ ๊ณต
ํ•™๋ถ€ ์žฌํ•™์ค‘. ๊ด€์‹ฌ๋ถ„์•ผ๋Š” ์˜์ƒ์ฒ˜๋ฆฌ,
๊ฒŒ์ž„ํ”„๋กœ๊ทธ๋ž˜๋ฐ, ์ž„๋ฒ ๋””๋“œ์†Œํ”„ํŠธ์›จ์–ด

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Test2

  • 1. ๊ตฌ์„ฑ ์š”์†Œ ๋ฒ”์œ„ ์ƒ‰์ƒ 0ยฐ(๋นจ๊ฐ•) ~ 360ยฐ(๋นจ๊ฐ•) ์ฑ„๋„ 0%(๋ฌด์ฑ„์ƒ‰) ~ 100% ๋ช…๋„ 0%(๊ฒ€์ •) ~ 100%(ํฐ์ƒ‰) ์˜์ƒ์ฒ˜๋ฆฌ๋ฅผ ์ด์šฉํ•œ ์†์ธ์‹ ๋งˆ์šฐ์Šค ์ œ์ž‘ Design of Hand Recognition Mouse using Image Processing ๋ฐฑํ˜•์ง„, ์ด์ข…ํ˜ธ (Hyengjin Baek and Chongho Lee) Abstract: This article describes a design of hand recognition mouse using image processing. Microsoft VX-1000 webcam is used for image acquisition, openCV is used for hand recognition. We take images from the webcam and we can detect skin area and convert these images to binary images including only skin area. In this images, we can detect central point of hand and top point of finger using angle and distance from central point. This top point is used to find a point of mouse. And we can count the number of fingers using contour function supplied from openVC. The number of fingers is used for function of mouse. Finally, we can obtain hand recognition mouse. Keywords: hand recognition, central point, top point of finger, the number of fingers, contour I. ์„œ๋ก  ํ˜„์žฌ ์˜ํ™”, ์˜ํ•™ ๋ถ„์•ผ ๋“ฑ ์—ฌ๋Ÿฌ ๋ถ„์•ผ์—์„œ ์˜์ƒ ์ฒ˜๋ฆฌ ๊ธฐ์ˆ ์ด ์‚ฌ์šฉ๋˜๊ณ  ์žˆ๋‹ค. ์˜์ƒ ์ฒ˜๋ฆฌ์˜ ๋Œ€ํ‘œ์ ์ธ ์ปจํ…์ธ ์ธ ๊ฐ€์ƒํ˜„์‹ค(Virtual Reality)์€ ์–ด๋–ค ํŠน์ •ํ•œ ํ™˜๊ฒฝ, ์ƒํ™ฉ ์„ ์ปดํ“จํ„ฐ๋ฅผ ์ด์šฉํ•˜์—ฌ ์‚ฌ์šฉ์ž๊ฐ€ ๋งˆ์น˜ ์‹ค์ œ ์ฃผ๋ณ€ ์ƒํ™ฉ๊ณผ ์ƒํ˜ธ์ž‘์šฉ์„ ํ•˜๊ณ  ์žˆ๋Š” ๊ฒƒ์ฒ˜๋Ÿผ ๋งŒ๋“ค์–ด ์ฃผ๋Š” ์ธ๊ฐ„๊ณผ ์ปดํ“จ ํ„ฐ ๊ฐ„์˜ ์ธํ„ฐํŽ˜์ด์Šค์ด๋‹ค. ๋ณธ ๋…ผ๋ฌธ์—์„œ๋Š” ์ธ๊ฐ„๊ณผ ์ปดํ“จํ„ฐ ๊ฐ„์˜ ์ž…์ถœ๋ ฅ ์ธํ„ฐํŽ˜์ด ์Šค ๊ตฌํ˜„์„ ์œ„ํ•ด ์†์ธ์‹ ๋งˆ์šฐ์Šค๋ฅผ ์ œ์ž‘ํ•˜๊ณ ์ž ํ•˜์˜€๋‹ค. ํ”ผ๋ถ€์ƒ‰ ์ถ”์ถœ์„ ์œ„ํ•ด HSV ์ƒ‰ ๊ณต๊ฐ„์„ ์ด์šฉํ•˜์˜€๊ณ , ์†๋“ฑ์˜ ์ค‘์‹ฌ์ ์œผ๋กœ๋ถ€ํ„ฐ์˜ ๊ฑฐ๋ฆฌ์™€ ๊ฐ๋„๋ฅผ ์ด์šฉํ•˜์—ฌ ์†๊ฐ€๋ฝ ๋์  ์„ ๊ตฌํ•˜์˜€๋‹ค. ๊ทธ๋ฆฌ๊ณ  ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜๋ฅผ ์„ธ๊ธฐ์œ„ํ•ด openCV์— ์„œ ์ œ๊ณตํ•˜๋Š” contour ํ•จ์ˆ˜๋ฅผ ์‚ฌ์šฉํ•˜์˜€๋‹ค. ๋งˆ์ง€๋ง‰์œผ๋กœ ์†๊ฐ€๋ฝ๊ฐœ์ˆ˜์— ๋”ฐ๋ผ ๋ฉ”์‹œ์ง€์ฒ˜๋ฆฌ๋ฅผ ํ•˜์—ฌ ๋งˆ์šฐ์Šค๊ธฐ๋Šฅ์„ ๊ตฌ ํ˜„ํ•˜์˜€๋‹ค. II. ๋ณธ๋ก  1. ํ”ผ๋ถ€์ƒ‰ ์ถ”์ถœ (1) HSV ์ƒ‰ ๊ณต๊ฐ„ HSV ์ƒ‰ ๊ณต๊ฐ„์ด๋ž€ ์ƒ‰์„ ํ‘œํ˜„ํ•˜๋Š” ํ•˜๋‚˜์˜ ๋ฐฉ๋ฒ•์ด์ž, ๊ทธ ๋ฐฉ๋ฒ•์— ๋”ฐ๋ผ ์ƒ‰์„ ๋ฐฐ์น˜ํ•˜๋Š” ๋ฐฉ์‹์ด๋‹ค. ์ƒ‰์ƒ(Hue), ์ฑ„๋„(Saturation), ๋ช…๋„(Brightness, Value)์˜ ์ขŒ๋ฃŒ๋ฅผ ์จ์„œ ํŠน์ •ํ•œ ์ƒ‰์„ ์ง€์ •ํ•œ๋‹ค. HSB๋กœ ๋ถˆ๋ฆฌ๋Š” ๊ฒฝ์šฐ๋„ ์žˆ ๋‹ค. ์ด๋Š” ํ‘œ 1์—์„œ ๋‚˜ํƒ€๋‚ด์—ˆ๋‹ค. ํ‘œ 1. HSV ์ƒ‰ ๊ณต๊ฐ„ (2) ์˜์ƒ๋‚ด์˜ ํ”ผ๋ถ€์ƒ‰ ์ถ”์ถœ Independentํ•œ Hue๊ฐ’์„ ์ถ”์ถœํ•˜๊ธฐ ์œ„ํ•ด ๊ทธ๋ฆผ 1๊ณผ ๊ฐ™ ์ด ํ”ผ๋ถ€์ƒ‰์˜ Hue๊ฐ’์„ ๋จผ์ € ์ž…๋ ฅ๋ฐ›๋Š”๋‹ค. ๊ทธ ๋‹ค์Œ ์›น์บ ์œผ ๋กœ๋ถ€ํ„ฐ ์ž…๋ ฅ๋ฐ›์€ RGB์˜์—ญ ๊ธฐ๋ฐ˜์˜ Skin Color๊ฐ’์„ HSV ์˜์—ญ ๊ธฐ๋ฐ˜์˜ Skin Color๊ฐ’์œผ๋กœ ๋ณ€ํ™˜ํ•˜์—ฌ ํ”ผ๋ถ€์ƒ‰์˜ Hue ๊ฐ’๊ณผ ์ผ์น˜ํ•˜๋Š” ์˜์—ญ์„ ํ”ผ๋ถ€์ƒ‰ ์˜์—ญ์œผ๋กœ ์ถ”์ถœํ•˜๊ฒŒ ๋œ๋‹ค. (a) Hue๊ฐ’ ์ž…๋ ฅ (b) ํžˆ์Šคํ† ๊ทธ๋žจ ๊ทธ๋ฆผ 1. Hue๊ฐ’ ์ž…๋ ฅ๊ณผ ํžˆ์Šคํ† ๊ทธ๋žจ (3) ์ด์ง„์˜์ƒ ํ”ผ๋ถ€์ƒ‰ ์˜์—ญ์œผ๋กœ ์ถ”์ถœ๋œ Hue๊ฐ’ ์˜์—ญ์˜ imageData๊ฐ’ ์œผ๋กœ 1๋กœ setting ํ•˜๊ณ , ํ”ผ๋ถ€์ƒ‰ ์˜์—ญ์ด ์•„๋‹Œ ๋ถ€๋ถ„์„ 0 ์œผ๋กœ setting ํ•˜๋ฉด ๊ทธ๋ฆผ 2์™€ ๊ฐ™์ด ์ด์ง„์˜์ƒ์„ ๊ตฌํ•  ์ˆ˜ ์žˆ๋‹ค. (a) Hue ์˜์ƒ (b) ์ด์ง„์˜์ƒ ๊ทธ๋ฆผ 2. Hue๊ฐ’๊ณผ ํ”ผ๋ถ€์˜์—ญ์˜ ์ด์ง„์˜์ƒ
  • 2. 2. ์นจ์‹๊ณผ ํŒฝ์ฐฝ ์—ฐ์‚ฐ (1) ์นจ์‹ ์—ฐ์‚ฐ ๋ฌผ์ฒด์— ๋Œ€ํ•ด ๋ฐฐ๊ฒฝ์„ ํ™•์žฅ์‹œํ‚ค๊ณ  ๋ฌผ์ฒด์˜ ์ฝ”๊ธฐ๋ฅผ ์ถ•์†Œ ํ•˜๋Š” ์—ญํ• ์„ ํ•˜๋ฉฐ, ์นจ์‹ ๋งˆ์Šคํฌ๋ฅผ ์ด์šฉํ•˜์—ฌ ์—ฐ์‚ฐ์‹œ ํฐ ๋ฌผ์ฒด์˜ ๋‘˜๋ ˆ๋กœ๋ถ€ํ„ฐ ํ•œ ํ”ฝ์…€์„ ์—†์• ๋Š” ํšจ๊ณผ๋ฅผ ๊ฐ–๋Š”๋‹ค. ์•„๋ž˜ ์ˆ˜์‹(1)์„ openCV์—์„œ๋Š” cvDilate ํ•จ์ˆ˜๋กœ ์ œ๊ณตํ•œ ๋‹ค. ๎€€โŠ—๎€ ๎‡ ๎ƒผ ๎ ๎€ ๎ˆ ๎ƒผ ๎• ๎€€ (1) (2) ํŒฝ์ฐฝ ์—ฐ์‚ฐ ๋ฌผ์ฒด์˜ ์ตœ ์™ธ๊ณฝ ํ”ฝ์…€์„ ํ™•์žฅํ•˜๋Š” ์—ญํ• ์„ ํ•œ๋‹ค. ๋”ฐ๋ผ ์„œ, ๋ฌผ์ฒด์˜ ์ฝ”๊ธฐ๋Š” ํ™•์žฅ ๋˜๊ณ  ๋ฐฐ๊ฒฝ์€ ์ถ•์†Œ ๋œ๋‹ค. ํŒฝ์ฐฝ ๋งˆ์Šคํฌ๋Š” ํฐ์ƒ‰ ๋ฌผ์ฒด์˜ ๋‘˜๋ ˆ์— ํ•œ ํ”ฝ์…€์„ ๋”ํ•˜๋Š” ์—ญํ• ์„ ํ•˜๋Š”๋ฐ 3 * 3 ๋งˆ์Šคํฌ์™€ ๋˜‘๊ฐ™์€ ์˜์—ญ์„ ๊ฐ€์ง€๋Š” ์˜์—ญ์— ๋Œ€ํ•ด์„œ๋Š” ๊ฐ’์„ ๋ฐ”๊พธ์ง€ ์•Š์œผ๋ฉฐ 1๊ฐœ ์ด์ƒ์˜ ์„œ๋กœ ๋‹ค๋ฅธ ํ”ฝ ์…€์ด ์กด์žฌํ•  ๊ฒฝ์šฐ ๋งˆ์Šคํฌ์˜ ๊ฐ€์šด๋ฐ ํ”ฝ์…€์— ํฐ์ƒ‰ ๊ฐ’์„ ํ• ๋‹น ํ•˜๋Š” ์—ญํ• ์„ ํ•œ๋‹ค. ์•„๋ž˜ ์ˆ˜์‹(2)๋ฅผ openCV์—์„œ๋Š” cvErode ํ•จ์ˆ˜๋กœ ์ œ๊ณตํ•œ๋‹ค. ๎€€โŠ•๎€ ๎‡ ๎€€ ๎ƒง โŠ– ๎„๎† ๎€๎…๎ƒง (2) (3) ์ฑ„์›€์—ฐ์‚ฐ ํŒฝ์ฐฝ ์—ฐ์‚ฐ ํ›„ ์นจ์‹ ์—ฐ์‚ฐ ์ˆ˜ํ–‰์„ ํ•จ์œผ๋กœ์จ ์˜์ƒ์˜ ์™ธ ๊ณฝ์„  ๋ถ€๋ถ„์„ ๋ถ€๋“œ๋Ÿฝ๊ฒŒ ๋งŒ๋“ค๋ฉฐ, ๊ฐ์ฒด์˜ ํ˜•ํƒœ์™€ ํฌ๊ธฐ๋Š” ๋ณด์กด๋˜๊ณ  ์ž‘์€ ๊ตฌ๋ฉ์ด๋‚˜ ํ‹ˆ์„ ์ฑ„์šฐ๋Š” ์—ญํ• ์„ ํ•œ๋‹ค. ์ด์ง„์˜์ƒ์„ ์ทจ๋“ํ•˜๋ฉด ์žก์Œ์ด ๋งŽ์ด ๋ฐœ์ƒํ•˜๋Š”๋ฐ ์ด๋Š” contour ํ•จ์ˆ˜์—์„œ ์น˜๋ช…์ ์ธ ์˜ค๋ฅ˜๋ฅผ ๋ฐœ์ƒ์‹œํ‚ค๋Š” ์›์ธ์ด ๋  ์ˆ˜ ์žˆ๊ธฐ ๋•Œ๋ฌธ์— ์ฑ„์›€์—ฐ์‚ฐ์„ ์ด์šฉํ•˜์—ฌ ์ด๋ฅผ ์ œ๊ฑฐ ํ•˜ ์˜€๋‹ค. ๊ทธ๋ฆผ 3. ์ฑ„์›€์—ฐ์‚ฐ ์ˆ˜ํ–‰์ „์˜ ์ด์ง„ ์˜์ƒ ๊ทธ๋ฆผ 4. ์ฑ„์›€์—ฐ์‚ฐ ์ˆ˜ํ–‰ํ›„์˜ ์ด์ง„ ์˜์ƒ 3. ์†๊ฐ€๋ฝ ๋์  (1) ์†์˜ ์ค‘์‹ฌ์  ์†๊ฐ€๋ฝ ๋์ ์„ ๊ตฌํ•˜๊ธฐ ์œ„ํ•ด์„œ๋Š” ์†์˜ ์ค‘์‹ฌ์ ๋ถ€ํ„ฐ ๊ตฌ ํ•ด์•ผ ํ•œ๋‹ค. ์†์˜ ์ค‘์‹ฌ์ ์€ ์ด์ง„์˜์ƒ์˜ ๋ฌด๊ฒŒ ์ค‘์‹ฌ์„ ์ด ์šฉํ•ด์„œ ๊ตฌํ•  ์ˆ˜ ์žˆ๋‹ค. ์ด์ง„ ์˜์ƒ์—์„œ ์†์˜์—ญ์˜ ๋ชจ๋“  ์ขŒ ํ‘œ์˜ ํ•ฉ์„ ์†์˜์—ญ์˜ ํ”ฝ์…€์˜ ์ˆ˜๋กœ ๋‚˜๋ˆ„๋ฉด ๋ฌด๊ฒŒ ์ค‘์‹ฌ์„ ๊ตฌํ•  ์ˆ˜ ์žˆ๋‹ค. ์ด๋Š” ์ˆ˜์‹(1)๊ณผ ๊ฐ™์ด x, y์ขŒํ‘œ์— ๊ฐ๊ฐ ์ ์šฉํ•œ๋‹ค. ๎€๎ƒท ๎„๎€—๎’๎€˜๎… ๎‡ ๎ง๎ƒฏ ๎‡ ๎€ด ๎ƒฒ ๎€๎„๎ƒผ๎ƒญ ๎’ ๎ƒฝ๎ƒญ๎… ๎€—๎ƒง ๎‡ ๎€—๎”๎ƒฒ ๎€˜๎ƒง ๎‡ ๎€˜๎”๎ƒฒ ๎€‚๎€„๎€๎€“๎€„๎€‘๎„๎€—๎’๎€˜๎… ๎‡ ๎€๎ƒง๎„๎€—๎ƒง ๎’๎€˜๎ƒง ๎… (3) ์ˆ˜์‹(3)์—์„œ n์€ ์†์˜์—ญ ํ”ฝ์…€์˜ ์ˆ˜๋ฅผ ์˜๋ฏธํ•œ๋‹ค. (2) ์†๊ฐ€๋ฝ ๋์  ๋งˆ์šฐ์Šค ํฌ์ธํ„ฐ ์—ญํ• ์„ ํ•˜๋Š” ์†๊ฐ€๋ฝ ๋์ ์€ ์†์˜ ์ค‘ ์‹ฌ์ ์œผ๋กœ๋ถ€ํ„ฐ์˜ ๊ฑฐ๋ฆฌ์™€ ๊ฐ๋„๋ฅผ ์ด์šฉํ•˜์—ฌ ๊ตฌํ•œ๋‹ค. ์ž…๋ ฅ ์˜์ƒ์—์„œ ๊ฒ€์ง€ ์†๊ฐ€๋ฝ์€ 3์‚ฌ๋ถ„๋ฉด์ธ 240ยฐ ~ 275ยฐ์™€ ์ค‘์‹ฌ ์ ์œผ๋กœ๋ถ€ํ„ฐ 140ํ”ฝ์…€ ์ดํ•˜์— ์œ„์น˜ํ•˜๊ฒŒ ๋œ๋‹ค. ๊ทธ๋ž˜์„œ ์ด ์˜์—ญ์— ์กด์žฌํ•˜๋Š” ์†๋ถ€๋ถ„์„ ๋ชจ๋‘ ์Šค์บ”ํ•˜์—ฌ Y์ขŒํ‘œ๊ฐ€ ๊ฐ€ ์žฅ ์ž‘์€ ์ขŒํ‘œ์ ์„ ๊ตฌํ•˜์—ฌ ์†๋์ ์œผ๋กœ ์ง€์ •ํ•˜์˜€๋‹ค. ๊ทธ๋ฆผ 5. ๊ฑฐ๋ฆฌ์™€ ๊ฐ๋„๋ฅผ ์ด์šฉํ•œ ๋์  ์ฐพ๋Š” ์ฝ”๋“œ ๊ทธ๋ฆผ 5์—์„œ์˜ TRANS2RAD๊ฐ’์€ 0.01745329์ด๊ณ . definedValue๊ฐ’์€ 255๋กœ setting ๋˜์—ˆ๋‹ค. ์ดˆ๊ธฐ์— ceta ๊ฐ’์„ 270ยฐ๋กœ ํ…Œ์ŠคํŠธํ•˜์˜€๋Š”๋ฐ ์ธ์‹๋ฅ ์„ ๋†’์ด๊ธฐ ์œ„ํ•ด 275ยฐ๋กœ ์ˆ˜์ •ํ•˜๊ฒŒ ๋˜์—ˆ๋‹ค. ์ด๋ ‡๊ฒŒ ๋‘ ์ ์„ ์ฐพ์•„ ์‹ค์‹œ๊ฐ„์œผ๋กœ ์˜์ƒ์ฒ˜๋ฆฌ๊ฐ€ ์ด๋ฃจ์–ด ์ง€๊ณ  ์žˆ๋‹ค๋Š” ๊ฒƒ์„ ํ™•์ธํ•˜๊ธฐ ์œ„ํ•ด cvCircle ํ•จ์ˆ˜๋ฅผ ์ด์šฉ ํ•˜์—ฌ ๊ทธ๋ฆผ 6๊ณผ ๊ฐ™์ด ์›์„ ๊ทธ๋ ค์ฃผ์—ˆ๋‹ค.
  • 3. Step1 ์ˆœ์ฐจํƒ์ƒ‰ํ•˜๋ฉด์„œ Labeling๋œ Object ๋ฅผ ๋งŒ๋‚˜๋ฉด ํ์— ๋„ฃ๋Š”๋‹ค. Step2 5-๋ฐฉํ–ฅ ํƒ์ƒ‰์„ ํ•˜์—ฌ ๊ฐ™์€ Label ๋ฒˆ ํ˜ธ์˜ ํ”ฝ์…€์„ ๋งŒ๋‚˜๋ฉด ํ์— ๋„ฃ๋Š”๋‹ค. Step3 Step2๋ฅผ ๋ฐ˜๋ณตํ•˜๋ฉด์„œ ์‹œ์ž‘์ ์„ ๋งŒ๋‚˜ ๋ฉด Object๋กœ ์ธ์‹ํ•˜๊ณ  ์‹œ์ž‘์ ์„ ๋งŒ ๋‚˜์ง€ ๋ชปํ•˜๋ฉด ์ œ๊ฑฐ ํ•œ๋‹ค. ๊ทธ๋ฆผ 6. ์ค‘์‹ฌ์ ๊ณผ ๋์  4. ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜ (1) ๋ถ€๋ถ„ ์ด๋ฏธ์ง€ ์†์ค‘์‹ฌ์ ๊ณผ ์†๋์ ์„ ์ฐพ๋Š” ๊ณผ์ •์ด ๋๋‚˜๋ฉด ์†๊ฐ€๋ฝ์˜ ๊ฐœ์ˆ˜๋ฅผ ์ถ”์ถœํ•˜๋Š” ์ž‘์—…์„ ํ•˜๊ฒŒ ๋œ๋‹ค. ์†๊ฐ€๋ฝ์˜ ๊ฐœ์ˆ˜๋ฅผ ์ถ”์ถœํ•˜๊ธฐ ์œ„ํ•ด์„œ๋Š” ์ค‘์‹ฌ์ ์œผ๋กœ๋ถ€ํ„ฐ 90ํ”ฝ์…€ ๋–จ์–ด์ง„ ๊ณณ ์—์„œ๋ถ€ํ„ฐ 100ํ”ฝ์…€๊นŒ์ง€์˜ ์˜์—ญ์ค‘ ์†์˜์—ญ์ธ ๋ถ€๋ถ„์„ ์ž„์˜ ์˜ ์˜์ƒ ํฌ์ธํ„ฐ์— ์ €์žฅํ•˜๊ฒŒ ๋œ๋‹ค. ์ด๋ฅผ ๋ถ€๋ถ„ ์ด๋ฏธ์ง€๋ผ ํ•œ๋‹ค. ๋ถ€๋ถ„ ์ด๋ฏธ์ง€์—๋Š” ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜ ๋งŒํผ์˜ ์ด๋ฏธ์ง€๊ฐ€ ์ €์žฅ ๋˜๊ฒŒ ๋œ๋‹ค. ์ด ๋ถ€๋ถ„ ์ด๋ฏธ์ง€๋ฅผ openCV์—์„œ ์ œ๊ณต ํ•˜๋Š” contour ํ•จ์ˆ˜๋ฅผ ์ด์šฉํ•˜์—ฌ contouring ํ•˜๋ฉด์„œ Object๋ฅผ ์ฐพ์„ ๋•Œ๋งˆ๋‹ค count๋ฅผ 1์”ฉ ์ฆ๊ฐ€์‹œํ‚ด์œผ๋กœ์จ ์† ๊ฐ€๋ฝ์˜ ๊ฐœ์ˆ˜๋ฅผ ๊ตฌํ•  ์ˆ˜ ์žˆ๋‹ค. (2) Contour contour ํ•จ์ˆ˜๋Š” ์œค๊ณฝ ์ •๋ณด๋ฅผ ์–ป๊ธฐ ์œ„ํ•ด์„œ Edge Tracing ๋˜๋Š” Boundary Flowing ์ด๋ผ๊ณ ๋„ ๋ถˆ๋ฆฌ๋Š” ์•Œ ๊ณ ๋ฆฌ์ฆ˜์„ ์ˆ˜ํ–‰ํ•œ๋‹ค. Labeling๋œ Object๊ฐ€ n๊ฐœ๊ฐ€ ์กด์žฌ ํ•œ๋‹ค๋ฉด ๊ฐ๊ฐ์˜ ํ•ด๋‹นํ•˜๋Š” Label ๋ณ„๋กœ Edge๋ฅผ ์ฐพ๋Š”๋‹ค. ํ”ฝ์…€์„ ์ฐพ๋Š” ๋ฐฉ๋ฒ•์—๋Š” CW(์‹œ๊ณ„๋ฐฉํ–ฅ)๊ณผ CCW(์‹œ๊ณ„๋ฐ˜๋Œ€ ๋ฐฉํ–ฅ)์ด ์žˆ๋Š”๋ฐ ์ด ๋‘ ๋ฐฉ๋ฒ•์€ ์ „ํ˜€ ๋‹ค๋ฅธ contour ์ •๋ณด ๋ฅผ ์ „๋‹ฌํ•œ๋‹ค. ๋ณธ ํ”„๋กœ์ ํŠธ์—์„œ๋Š” ๊ทธ๋ฆผ 7๊ณผ ๊ฐ™์ด CW๋ฐฉ ๋ฒ•์œผ๋กœ ์ง„ํ–‰ ๋ฐฉํ–ฅ์˜ ์™ผ์ชฝ์œผ๋กœ 90ยฐ๊บฝ์ธ ๋ฐฉํ–ฅ์—์„œ๋ถ€ํ„ฐ 45ยฐ์”ฉ 5-๋ฐฉํ–ฅ์ด๋‹ค. Contouring ํ•˜๋Š” ๊ณผ์ •์€ ํ‘œ 2์™€ ๊ฐ™ ๊ณ  Pseudo Code๋Š” ๊ทธ๋ฆผ 8๊ณผ ๊ฐ™๋‹ค. ํ‘œ 2. Contoring ๊ณผ์ • ๊ทธ๋ฆผ 7. ์‹œ๊ณ„๋ฐฉํ–ฅ Search ๊ทธ๋ฆผ 8. Contour Pseudo Code openCV์˜ contourํ•จ์ˆ˜๋Š” CvMemStorage์— ๋ฉ”๋ชจ ๋ฆฌ๋ฅผ ํ• ๋‹นํ•˜๊ณ  CvSeq๋ผ๋Š” ๋ฐฐ์—ด์— contour์ •๋ณด๋ฅผ ์ €์žฅ ํ•œ๋‹ค. ๊ทธ๋‹ค์Œ cvFindcontourํ•จ์ˆ˜๋ฅผ ์ด์šฉํ•˜์—ฌ labeling ๋œ ๊ฐ์ฒด๋ฅผ ํ•˜๋‚˜์”ฉ ์ฐพ์œผ๋ฉด์„œ ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜๋ฅผ ์…€ ์ˆ˜ ์žˆ๋‹ค. ๊ทธ๋ฆผ 9๋Š” ์ด๋ฒˆ ํ”„๋กœ์ ํŠธ์— ์‚ฌ์šฉ๋œ contour ์ฝ”๋“œ์ด๊ณ , ๊ทธ๋ฆผ 10์€ ๋ถ€๋ถ„ ์ด๋ฏธ์ง€์ด๋‹ค. ๊ทธ๋ฆผ 9. Contour source code ๊ทธ๋ฆผ 10. ๋ถ€๋ถ„ ์ด๋ฏธ์ง€
  • 4. ๊ทธ๋ฆผ 11. ์ž…๋ ฅ์˜์ƒ๊ณผ ๊ฒฐ๊ณผ ์˜์ƒ ๊ทธ๋ฆผ 11์€ RGB๊ฐ’์˜ ์ž…๋ ฅ ์˜์ƒ์„ ์›น์บ ์œผ๋กœ๋ถ€ํ„ฐ ๋ฐ› ์•„์™€ HSV๊ฐ’์œผ๋กœ ๋ณ€ํ™˜ํ•˜์—ฌ ํ˜„์žฌ๊นŒ์ง€์˜ ๋ชจ๋“  ์˜์ƒ์ฒ˜๋ฆฌ ๊ณผ์ •์„ ์ˆ˜ํ–‰ํ•œ ํ›„์˜ ๊ฒฐ๊ณผ ์˜์ƒ์ด๋‹ค. ํ”ผ๋ถ€์ƒ‰์„ ์ถ”์ถœํ•˜์—ฌ ์ด์ง„ํ™” ํ•˜์˜€๊ณ , ์ด ์˜์ƒ์— ์ฑ„์›€์—ฐ์‚ฐ์„ ์ˆ˜ํ–‰ํ•˜์—ฌ ๋…ธ์ด์ฆˆ ๋ฅผ ์ œ๊ฑฐ ํ•˜์˜€๋‹ค. ์† ์ค‘์‹ฌ์ ๊ณผ ๋์ ์„ ๊ตฌํ•˜์—ฌ ์›์œผ๋กœ ํ‘œ ํ˜„ ํ•˜์˜€์œผ๋ฉฐ, contour ํ•จ์ˆ˜๋ฅผ ์ด์šฉํ•˜์—ฌ ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜๋ฅผ ์„ธ์–ด ์ด๋ฅผ ์ˆซ์ž๋กœ ํ‘œ๊ธฐ ํ•˜์˜€๋‹ค. 5. ๋งˆ์šฐ์Šค ๊ธฐ๋Šฅ ๊ตฌํ˜„ (1) ํฌ์ธํ„ฐ ๊ตฌํ˜„ ์†๊ฐ€๋ฝ ๋์ ์˜ ์ขŒํ‘œ๋ฅผ ์ด์šฉํ•˜์—ฌ ๋งˆ์šฐ์Šค ํฌ์ธํ„ฐ์˜ ์ขŒ ํ‘œ๋ฅผ ๊ตฌํ˜„ํ•œ๋‹ค. ํ˜„์žฌ ์ž…๋ ฅ ์˜์ƒ์˜ ํฌ๊ธฐ๊ธฐ 320 * 240 ํ”ฝ์…€์ด๊ธฐ ๋•Œ๋ฌธ์— ์ถœ๋ ฅ ํ™”๋ฉด์˜ ํฌ๊ธฐ์— ๋งž๊ฒŒ ์ ์šฉ์‹œํ‚ค๊ธฐ ์œ„ํ•ด์„œ ๊ทธ๋ฆผ 12์™€ ๊ฐ™์ด ์ƒ๋Œ€์ขŒํ‘œ๋ฅผ ์ด์šฉํ•œ๋‹ค. ๊ทธ๋ฆผ 12. ์ƒ๋Œ€์ขŒํ‘œ๋ฅผ ์ด์šฉํ•œ ์ขŒํ‘œ๊ฐ’ (2) ํฌ์ธํ„ฐ ๋ณด์ • ์‹ค์‹œ๊ฐ„์œผ๋กœ ์ทจ๋“ํ•˜๋Š” ์†๋ ์ขŒํ‘œ๋ฅผ ์ด์šฉํ•œ ๋งˆ์šฐ์Šค ํฌ ์ธํ„ฐ๋Š” ๋งŽ์€ ๋–จ๋ฆผ์ด ์žˆ๊ธฐ ๋•Œ๋ฌธ์— ์‚ฌ์šฉ์ž๊ฐ€ ์–ด์ƒ‰ํ•จ์„ ๋Š ๋ผ๊ฒŒ ๋œ๋‹ค. ์ด๋ฅผ ๊ฐœ์„ ํ•˜๊ธฐ ์œ„ํ•˜์—ฌ ํฌ์ธํ„ฐ ๋ณด์ •์„ ํ•˜์˜€ ๋‹ค. ํฌ์ธํ„ฐ ๋ณด์ •์ด๋ž€ ํฌ์ธํ„ฐ์˜ ์ด์ „ ๊ฐ’๊ณผ ํ˜„์žฌ ๊ฐ’์ด ๊ฐ™ ์€ ํ‰๊ท ๊ณผ ํ‘œ์ค€ํŽธ์ฐจ๋ฅผ ๊ฐ–๋„๋ก ํ•˜๋Š” ๊ฒƒ์„ ๋œปํ•œ๋‹ค. ๊ทธ๋ฆผ 13. ํฌ์ธํ„ฐ ๋ณด์ • ์ฝ”๋“œ ๊ทธ๋ฆผ 13์—์„œ alpCenter๊ฐ’์€ 0.6์ด๋‹ค. (3) Move์™€ Click ๊ตฌํ˜„ ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜ ์ •๋ณด๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ๋Š” finger_count ๋ณ€์ˆ˜ ์˜ ๊ฐ’์ด 1์ผ ๋•Œ์—๋Š” MOVE์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œํ‚ค๊ณ , ๊ฐ’์ด 1์—์„œ 2๊ฐ€ ๋  ๋•Œ LEFTDOWN์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œํ‚ค๋ฉฐ ๊ฐ’ ์ด 2์—์„œ ๋‹ค์‹œ 1์ด ๋  ๋•Œ LEFTUP์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œ์ผœ ๋งˆ์šฐ์Šค์˜ Click ๊ธฐ๋Šฅ์„ ๊ทธ๋ฆผ 14์™€ ๊ฐ™์ด ๊ตฌํ˜„ํ•  ์ˆ˜ ์žˆ ๋‹ค. ๊ทธ๋ฆผ 14. MOVE์™€ CLICK ์ด๋ฒคํŠธ ๊ตฌํ˜„ ์ฝ”๋“œ ์ด์ฒ˜๋Ÿผ ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜์— ๋”ฐ๋ฅธ ๋งˆ์šฐ์Šค ์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œ ์ผœ ๊ธฐ์กด์— ์‚ฌ์šฉํ•ด ์˜ค๋˜ ๋งˆ์šฐ์Šค์˜ ๊ธฐ๋Šฅ์„ ๊ตฌํ˜„ ํ•  ์ˆ˜ ์žˆ ์Œ์„ ์•Œ ์ˆ˜ ์žˆ๋‹ค. ์šฐ ํด๋ฆญ๋„ ๊ฐ™์€ ๋ฐฉ๋ฒ•์œผ๋กœ ๊ตฌํ˜„ ํ•  ์ˆ˜ ์žˆ์Œ์„ ์•Œ ์ˆ˜ ์žˆ๊ณ , MOVE์™€ CLICK ๊ธฐ๋Šฅ์„ ์กฐํ•ฉํ•˜์—ฌ DRAG ๊ธฐ๋Šฅ ์—ญ์‹œ ๊ตฌํ˜„ ํ•  ์žˆ๋‹ค.
  • 5. 6. ์ œ์ž‘๋œ ๋งˆ์šฐ์Šค ํ…Œ์ŠคํŠธ ๊ทธ๋ฆผ 15. Move ํ…Œ์ŠคํŠธ ๊ทธ๋ฆผ 16. Click ํ…Œ์ŠคํŠธ ๋งˆ์šฐ์Šค ํฌ์ธํ„ฐ ์ด๋™ ํ›„ ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜๋ฅผ 2๊ฐœ๋กœ ๋งŒ๋“ค ์–ด LEFTDOWN ์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œํ‚ค๊ณ , ๋‹ค์‹œ 1๊ฐœ๋กœ ๋งŒ ๋“ค์–ด LEFTUP ์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œ์ผœ ๋งˆ์šฐ์Šค Click ๊ธฐ๋Šฅ ์„ ํ…Œ์ŠคํŠธ ํ•  ์ˆ˜ ์žˆ๋‹ค. III. ๊ฒฐ๋ก  ์˜์ƒ์ฒ˜๋ฆฌ์˜ ๊ฐ€์žฅ ํฅ๋ฏธ๋กœ์šด ๋ถ„์•ผ ์ค‘ ํ•˜๋‚˜์ธ ์˜์ƒ์ธ์‹ ์˜ ์‘์šฉ ๊ธฐ์ˆ ๋กœ๋Š” ์–ผ๊ตด ๋ฐ ํ‘œ์ • ์ธ์‹, ์ œ์Šค์ฒ˜์ธ์‹, ๊ฐ€ ์ƒํ˜„์‹ค ๋“ฑ์ด ์žˆ์œผ๋ฉฐ ๊ทผ๋ž˜์— ๋“ค์–ด์„œ ๊ฐœ์ธ์˜ ๋…ํŠนํ•œ ์‹ ์ฒด ์  ํŠน์ง•์ด๋‚˜ ์Šต๊ด€ ๋“ฑ์„ ์ด์šฉํ•˜์—ฌ ๊ฐœ์ธ์˜ ์‹ ์›์„ ํ™•์ธํ•˜ ๋Š” ๋ฐฉ๋ฒ•์ธ ์ƒ์ฒด์ธ์‹(Bio metrics)์— ๋Œ€ํ•œ ๊ด€์‹ฌ๊ณผ ์ค‘์š” ์„ฑ์ด ๋”์šฑ ์ฆ๋Œ€๋˜๊ณ  ์žˆ๋‹ค. ๋ณธ ๋…ผ๋ฌธ์—์„œ๋Š” openCV๋ฅผ ์ด์šฉํ•˜์—ฌ ์†์ธ์‹ ๋งˆ์šฐ์Šค๋ฅผ ์ œ์ž‘ํ•ด ๋ณด์•˜๋‹ค. ์†์ธ์‹ ๋งˆ์šฐ์Šค๋ฅผ ์ œ์ž‘ํ•˜๋ฉด์„œ ์˜์ƒ์ฒ˜๋ฆฌ ๊ณผ์ •์„ ์ดํ•ดํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค. ๋˜ํ•œ ์‚ฌ์šฉ์ž ๋งˆ๋‹ค ๋‹ค๋ฅธ ํ”ผ๋ถ€ ์ƒ‰์„ ์ธ์‹ํ•˜๊ธฐ ์œ„ํ•ด Independentํ•œ Hue๊ฐ’์„ ์ด์šฉํ•˜์—ฌ ์กฐ๊ธˆ ๋” ํšจ์œจ์ ์ธ ํ”„๋กœ์ ํŠธ๋ฅผ ๊ตฌํ˜„ ํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค. ๊ทธ๋ฆฌ ๊ณ  ์†๊ฐ€๋ฝ ๊ฐœ์ˆ˜๋ฅผ ์ฐพ๋Š” ๋ถ€๋ถ„์—์„œ ๋งŽ์€ ํ…Œ์ŠคํŠธ ์‹œ๊ฐ„์ด ํ•„์š” ํ–ˆ๋‹ค. ๋ฏธ์„ธํ•œ ๊ฐ๋„์™€ ๊ฑฐ๋ฆฌ๋ฅผ ํ…Œ์ŠคํŠธ์™€ ํ•จ๊ป˜ ๊ตฌํ˜„ ํ•ด ๊ฐ€๋ฉด์„œ ์†๊ฐ€๋ฝ์„ ์ฐพ๋Š”๋ฐ ์ตœ์ ํ™”๋œ ๊ฐ๋„์™€ ๊ฑฐ๋ฆฌ๋ฅผ ๊ตฌ ํ–ˆ๊ธฐ ๋•Œ๋ฌธ์— ๋†’์€ ์ธ์‹๋ฅ ์„ ํ™•์ธํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค. ๋ณธ ๋…ผ๋ฌธ์˜ ์—ฐ๊ตฌ๋Š” ์ €๊ฐ€์˜ ์žฅ๋น„๋ฅผ ์‚ฌ์šฉํ•˜์˜€์œผ๋ฉฐ ํŠน์ • ํ•œ ์ž…๋ ฅ ์˜์ƒ์„ ์š”๊ตฌํ•˜์ง€ ์•Š์•˜๊ณ , ๋ˆ„๊ตฌ๋‚˜ ์‰ฝ๊ฒŒ ํ…Œ์ŠคํŠธ ํ•˜๊ณ  ์ดํ•ดํ•  ์ˆ˜ ์žˆ๋„๋ก ๊ตฌํ˜„ ๋˜์–ด ์žˆ์œผ๋ฏ€๋กœ ์˜์ƒ์ฒ˜๋ฆฌ ๋ถ„์•ผ์—์„œ ์†์ธ์‹ ๊ธฐ์ดˆ ์ž๋ฃŒ๋กœ์„œ ํ™œ์šฉ๋  ์ˆ˜ ์žˆ์„ ๊ฒƒ์ด๋ผ ์ƒ๊ฐ๋œ๋‹ค. IV. ์ฐธ๊ณ ๋ฌธํ—Œ [1] T.Kondo and H.Yan, "Automatic human face detection and recognition under non-uniform illumination," Patern Recognition Letter, vol. 32, pp.1707-1718, 1999. [2] M. Yagi and T. Shibata, "Human-Perception-Like Image Recognition System Based on the Associative Processor Architecture," in the Proc. of 11th European Signal Processing Conference (EUSIPCO 2002), pp. I-103-I-106, Sep. 2002 [3] A. Albiol, C.A. Bouman, and E.J. Delp, "Face detection for pseudo-semantic labeling in video database," in IEEE Int. Conference on Image Processing, Kobe, Japan, October 1999 [4] M-H Yang and N. Ahuja, "Detecting human faces in color images," in IEEE International Conference on Image Processing, Chicago, IL, October 4-7 1998, pp. 127-130. [5] V.Vilaplana, F. Marques, P. Salembier, and L. Garrido, "Region-based segmentation and tracking of human faces," in European Signal Processing, Rhodes, September 1998, pp. 593-602. [6] S. Beucher and F. Meyer, Mathematical Morphology in Image Processing, chapter 12. The morphological Approach the Segmentation: The Watershed Transformation, pp. 433-481, Marcel Dekker Inc., 1993. [7] R. Brunelli, T. Poggio, "Face Recognition : Features vs. Templates", IEEE Trans. on PAMI, vol. 15, no. 15, pp. 1042-1052, 1993. [8] Rama Chellappa, Charles L. Wilson, Saad Sirohey, " Human and Machine Recognition of Faces : A Survey". Proceedings of The IEEE, vol. 83, no. 5, 1995 [9] B. Takacs, H. Wechsler, "Face Recognition Using Binary Image Metrics", Automatic Face and Gesture Recognition, 1998. Proceedings. Third IEEE International Conference on, 14-16 pp. 249-299 April 1998
  • 6. ๋ฐฑ ํ˜• ์ง„ 2001๋…„ ๊ฑฐ์ฐฝ๋Œ€์„ฑ๊ณ ๋“ฑํ•™๊ต ์กธ์—…. 2001๋…„โˆผํ˜„์žฌ ์ธํ•˜๋Œ€ํ•™๊ต ์ •๋ณดํ†ต์‹ ๊ณต ํ•™๋ถ€ ์žฌํ•™์ค‘. ๊ด€์‹ฌ๋ถ„์•ผ๋Š” ์˜์ƒ์ฒ˜๋ฆฌ, ๊ฒŒ์ž„ํ”„๋กœ๊ทธ๋ž˜๋ฐ, ์ž„๋ฒ ๋””๋“œ์†Œํ”„ํŠธ์›จ์–ด