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相機與手機鏡頭之檢測

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The inspection for the image quality in cellphone camera

作者:黃冠穎

系級:

自動控制工程學系二乙

學號:D0079096

開課老師:林宸生 老師

課程名稱:光機電工程(一)

開課系所:自動控制工程學系

開課學年: 101 學年度 第 1 學期

(2)

中文摘要

中文摘要

中文摘要

中文摘要

(1)

:

MTF

(2)

:

120mm

Excel

(3)

:

1.

2.

MTF

3.

4.

1.

2.

Sony Ericsson Z750i

3.

Nikon s510

4.

1.

2.

MTF

Tilt

3.Distortion (

)

4.

(3)

Abstract

we can use simple measurement tools, and simple steps, to learn more

about the features of the lens of phone or the camera . There are four

camera features measurement whitch are vignetting, MTF, distortion and

point measurement.

K

eyword

Distortion

Modulation Transfer Function

Vignetting

(4)

MTF Tilt

Distortion (

)

(5)

( )

:

( )

:

CCD

PC

D= 120

cm

Nikon s510

2mm

:

( )

:

(

M

×

N

)

2mm

21x19=399

1

0.1 mm

(

2mm

76-a.jpg

7

1

mm)

(6)

( )

:

( )

:

CCD

PC

D= 120

cm

Nikon s510

:

(7)

( )

:

1.

RGB

2.

( )

:

R=187 G=189 B=184

R=148 G=142 B=146

R=133 G=133 B=133

R=130 G=124 B=124

R=136 G=125 B=131

,

,

(8)

MTF

MTF

MTF

MTF Tilt

Tilt

Tilt

Tilt

(

)

:

( mm

1p/mm)

20-50 1p/mm

( )

:

CCD

PC

D=

12.6 cm

Nikon s510

TEST PATTERN GROUP

:

(9)

MTF Tilt

MTF(

):

CCD

MTF

1

min max min max

I

I

I

I

MTF

+

=

(1)

I

max

(

)

(

) I

min

(MTF)

I

max

219

I

min

91

(MTF)

0.412903

219

0

(MTF)

1

159

159

(MTF)

0

(EXEL)

MTF

mm

1p/mm

2mm

(

)

4mm

mm

0.25

1/4 =0.25

TEST

PATTERN GROUP

2

1

(

)

a(

:1/23 mm

2

3

)

2

b(

:20)

a

×

b(

: 1/23

×

20= 20/23mm)

1/(a

×

b) (

:23/20 1p/mm)

(10)

( )

:

1.

1

(

)--

2mm

n

1

(

) 2/n mm

2mm 2-6

2mm

1

(

)

1

2.

2-6

2-6

2.5

5

3.

2-6

4.

2-6

(

0-2

(156-140)/2.5=6.4

0-6

(227-217)/2.5=4

0-6

0-2

6.4/4=1.6

)

(EXEL)

(11)

( )

:

TEST PATTERN GROUP

MTF

MAX

MIN

MTF

空間週期 空間頻綠

153

35

0.62766

1.0026 0.997407

148

39

0.582888

0.8704 1.148897

142

49

0.486911

0.8064 1.240079

120

48

0.428571

0.70296 1.422556

114

56

0.341176

0.6656 1.502404

108

63

0.263158

0.576 1.736111

100

57

0.273885

0.5376 1.860119

109

64

0.260116

0.4864 2.055921

104

59

0.276074

0.4352 2.297794

99

56

0.277419

0.3968 2.520161

81

57

0.173913

0.3456 2.893519

81

63

0.125

0.2944 3.396739

TEST PATTERN GROUP

MTF

IMAX

IMIN

MTF

空間週期 空間頻率

138

67

0.346341

1.1264 0.887784

126

69

0.292308

1.0752

0.93006

113

62

0.291429

1.024 0.976563

110

58

0.309524

0.8832 1.132246

90

60

0.2

0.7808 1.280738

104

75

0.162011

0.6784 1.474057

107

88

0.097436

0.64

1.5625

115

81

0.173469

0.576 1.736111

112

80

0.166667

0.5376 1.860119

115

88

0.133005

0.4224 2.367424

100

99

0.005025

0.4096 2.441406

99

97

0.010204

0.3584 2.790179

EXEL

MTF

(

fx

fy)

MTF

(12)
(13)
(14)

( )

:

1.

2.

100%

0 1

3.

Distortion (

Distortion (

Distortion (

Distortion (

)

)

)

)

( )

:

(

)

(

)

( )

:

CCD

PC

(15)

:

(16)

:

(17)

:

( )

:

h0

h1

h0/h1

(

EXEL)

(

0%

100%)

(18)

1.

2mm

68

2.

(

)

1mm

34

3.

36

36/34

4.

(

-

0%

100%)

5.

(

)

6.

(

)

.

(19)

PC

(20)
(21)
(22)
(23)
(24)

( )

:

(25)

參考文獻

光電科技與生活 光電科技概論.林宸生著.五南圖書

參考文獻

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