webcam cmos
DESCRIPTION
WebCam CMOS. 640 x 480. Imagem Original. Imagem tons de cinza. Média. Ruído Normalizado. - desvio padrão máximo = 6.72 - desvio padrão médio = 1.61. Auto-covariância normalizada. Câmera CCD. 640 x 480. Imagem Original. Média. Ruído Normalizado. - desvio padrao maximo = 54.02 - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/1.jpg)
WebCam CMOS
640 x 480
![Page 2: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/2.jpg)
Imagem Original
![Page 3: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/3.jpg)
Imagem tons de cinza
![Page 4: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/4.jpg)
Média
![Page 5: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/5.jpg)
Ruído Normalizado
- desvio padrão máximo = 6.72- desvio padrão médio = 1.61
![Page 6: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/6.jpg)
Auto-covariância normalizada
![Page 7: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/7.jpg)
Câmera CCD
640 x 480
![Page 8: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/8.jpg)
Imagem Original
![Page 9: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/9.jpg)
Média
![Page 10: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/10.jpg)
Ruído Normalizado
- desvio padrao maximo = 54.02- desvio padrao medio = 2.05
![Page 11: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/11.jpg)
Auto-covariância normalizada
![Page 12: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/12.jpg)
Variação cos4(x)
![Page 13: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/13.jpg)
Variação cos4(x)
α
dist = 30cmw/2 = 320pxl
w_cm/2 = 12,25cm
α = atan ( xpxl * tpxl) / dist
tpxl = w_cm / w0
xpxl
![Page 14: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/14.jpg)
Variação cos4(x)
E(p) / cos(a)^4
0,00
50,00
100,00
150,00
200,00
250,00
![Page 15: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/15.jpg)
Deformação Radial
2º ponto:x2 = 191, y1 = 122x2d = 187, y1d = 120
1º ponto:x1 = 278, y1 = 185x1d = 269, y1d = 177
x1 = x1d ( 1 + k1r12 + k2r1
4)x2 = x2d ( 1 + k1r2
2 + k2r24)
onde rx2 = xxd2 + yxd2
Resolvendo o sistema de equaçõesk1 = 5,338 * 10-7
k2 = -2.036 * 10-12
![Page 16: WebCam CMOS](https://reader036.vdocuments.site/reader036/viewer/2022081421/56813b60550346895da45ac5/html5/thumbnails/16.jpg)
Número de sensores
Sensores em x ≈ 480 Sensores em y ≈ 240