HOW TO CHOOSE SIMULATION PARAMETERS TO IMPROVE ACCURACY?

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PP105

HOW TO CHOOSE SIMULATION PARAMETERS TO IMPROVE ACCURACY?

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D < / =< ( ( 3=< / J< @? 3' . )=B 4 EH I D JF+ 1 7 9 . : ( 4 )+ K ; % L 5 M N

< ( ' ( )* O ' ? / =-P ' ( -* 7

Abstract

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4 =' 7 C. )=? < 4 - 5 4 )* ( Q D G 4 . 3( P ( B ? ' =< / ' ? 3( . < 9 ' ? 3( : ? : 7 C. 3+ 4 =' 7 C. )=? < 4 . 3( . C4 ? 3( R 7 =3( 9 =< ? 39 ( 3

)? 4 . )=4 @0 )* ( =3 9 => ( 34 ( : 3? @( 4 4 =? < . C . : : C=B . )=? < 4 -

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B . CB 7 C. )( S =)* )* ( 4 ( > ( B )? 34 R 7 =B T C0 . < 9 ( . 4 =C0 -

K ? S ( > ( 3+ ' . < 0 R 7 ( 4 )=? < 4 . 3=4 ( . P ? 7 ) 4 =' 7 C. )=? < 4 - U ? 3 ( V . ' : C( + * ? S ' . 0 )3. B ( 9 3. 0 4 . 3( 3( R 7 =3( 9 )?

. B * =( > ( . B B 7 3. )( 3( 4 7 C)4 W X * . ) =4 )* ( 3( C. )=? < 4 * =: P ( )S ( ( < )* ( )3. B ( 9 3. 0 4 . < 9 )* ( 4 =' 7 C. )=? < )=' ( W

X * . ) =4 )* ( ( @@( B ) ? @ B ? ' : C( V / ( ? ' ( )3=( 4 ? < )* ( 4 =' 7 C. )=? < 3( 4 7 C)4 W Y . < S ( =' : 3? > ( . B B 7 3. B 0 S =)* =' Z

: C( ' ( < )=< / . ' ( . 4 7 3( 9 4 : ( B )3. C : ? S ( 3 9 =4 )3=P 7 )=? < W

A * ( . =' ? @ )* =4 : . : ( 3 =4 )? . < 4 S ( 3 4 ? ' ( ? @ )* ( 4 ( R 7 ( 4 )=? < 4 7 4 =< / . : 3? @( 4 4 =? < . C C=/ * )Z' ? 9 ( C=< / . < 9

4 =' 7 C. )=? < 4 ? @)S . 3( . ) )* ( 1 ; A D [ H I D J-

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H ? 9 ( 3< ? : )=B . C 4 =' 7 C. )=? < . C/ ? 3=)* ' 4 B . < P ( 4 ( : . 3. )( 9 =< )? )* 3( ( 4 7 P ZB . )( / ? 3=( 4 P . 4 ( 9 ? < )* ( =3 7 4 ( 9

B . CB 7 C. )=< / ' ( )* ? 9 4 E1 M I + \ ] ] ^ F _

` 6 ( R 7 ( < )=. C 3. 0 )3. B =< / _ )* ( . C/ ? 3=)* ' 4 7 P 4 )=)7 )( 4 )* ( C=/ * ) 4 ? 7 3B ( S =)* 9 =3( B )( 9 3. 0 4 . < 9 / 7 =9 ( 4 )* ( 4 (

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: * ( < ? ' ( < . E4 7 B * . 4 B * 3? ' . )=B . P ( 33. )=? < F -

` % ? < Z4 ( R 7 ( < )=. C 3. 0 )3. B =< / _ 4 =' =C. 3 )? )* ( ? < ( . P ? > ( + P 7 ) =< )* =4 B . 4 ( )* ( 3 . 0 4 B . < 3( . B * ? < ( 4 7 3@. B (

=< ' 7 C)=: C( )=' ( 4 . < 9 =< . < 0 ? 39 ( 3 - M . 0 4 B . ))( 3=< / =4 . CC? S ( 9 - A * ( ? 39 ( 3 ? @ )* ( 3. 0 )3. B =< / =4 . 3P =)3. 30 -

` U =< =)( Z9 =@@( 3( < B ( )=' ( Z9 ? ' . =< _ ' . =< C0 7 4 ( 9 =< )* ( 9 ( 4 =/ < ? @ ' =B 3? Z? : )=B . C 4 0 4 )( ' 4 S * ( 3( )* ( 3( . 3(

? : )=B . C ( C( ' ( < )4 . ) . 4 =a ( ? @ )* ( S . > ( C( < / )* ? @ C=/ * ) -

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? < )* ( H ? < )( Y . 3C? ' ( )* ? 9 - ; 4 =< / )* =4 ' ( )* ? 9 + 9 ( )( 3' =< =4 )=B : 3? P C( ' 4 B . < P ( 4 ? C> ( 9 S =)* )* ( 4 ( R 7 ( < B (

? @ 3. < 9 ? ' ( > ( < )4 . : : C0 =< / : 3? P . P =C=)0 9 ( < 4 =)0 @7 < B )=? < 4 @? 3 )* ( 7 < T < ? S < : . 3. ' ( )( 34 - J< B ? < )3. 4 ) )? 9 ( Z

)( 3' =< =4 )=B ' ( )* ? 9 4 + 9 7 ( )? )* ( 3 . < 9 ? ' 4 . ' : C=< / + )* ( H ? < )( Y . 3C? ' ( )* ? 9 < ( ( 9 4 C( 4 4 B . CB 7 C. )=? < EB ? ' Z

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. < 9 @? 3 )* ( ( > . C7 . )=? < 4 + 4 ). )=4 )=B . C ( 4 )=' . )=? < ' ( )* ? 9 4 . 3 ( . : : C=( 9 E b ? T 3c 9 =+ \ ] d ] F -

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Ȧ Ȧ

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where

Ȧ i is the vector directed to the light source;

Ȧ ⁰ is the vector directed to the observer (sensor);

L is the luminance;

E is the illuminance;

i is incoming parameter;

r is reflected parameter;

ș is the angle between the surface normal and the ray.

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4 Effect of optical geometries on the simulations

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Ù ¼ º¹ Û Ò Ó ¹ ¼ » ¹ Ç Á ¿ Â ÊÆ Á ÊÂ ¿ ½¾Á Ô É Ñ Ñ Ñ » Ú ¹ Æ ¾º¿ ºÁ Ç Ê¿ Ã ¹ ¾¹ º Æ Á Ã ¹ ºÁ Å¿ º ¾¸ ¹ Ã ¹ Á » ¼ º¹ Ã ¹ Â ¾» Ó

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HOW TO CHOOSE SIMULATION PARAMETERS TO IMPROVE ACCURACY?

PP105