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'? ????'
Table of Contents

?? ??? ??? ?????? ????? ????? ??? ???????.

 

??? ??? ?? ???? ????? ???? ?? ????, ??? ?? ??? ???? ??? ??? ?????? ?? ??? ??? ??????.

Machine vision
Telescope mirors
Camera lens with reflection

Source: Shutterstock

Synopsys ?? ???? ???? ??? ?? ?? ??? ????, ??? ?? ??? ???? ? ?? ?????? ???? ??? ??? ??? ? ????. ??? ?????? ???? ??? ?? ?? ???? ????? ??? ??? ??? ?? ??? ?????.

?? ? ?? ??? ???? ?? ??? ???? ?????? ?? ??? ??? ??? ??????. ?? ?? ??? ??? ????? ?? ?? ?? ????? ??? ??? ? ??? ????? ??? ?????.

?? ??(ray tracing), ? ??(beam propagation), ??? ??? ??? ??? ??? ?? ?? ??? ????? ??? ?? ??? ??? ?-?? ?? ????? ???? ??????. ??? ??? ??? ?? ??? ?????, ??? ?? ???? ??? ?? ??? ?????. ??? ??? ???? ?? ???? ?????, ??? ??? ?????, ?? ??? ??? ? ???? ??? ???.

? ??, ?? ??????? ??? ?? ??? ?? ?? ??? ???? ?? ?? ???? ???? ? ???? ??? ?? ????.

The Importance of BSDF Measurements in Virtual Prototyping

?? ???????? BSDF ??? ???

?? ????? ??? BSDF(Bidirectional Scattering Distribution Function) ?? ???? ????, ????? ??? ??? ???? ??? ?? ???? ?? ??? ?? ????? ??? ? ????. BSDF? ??? ???? ??? ??? ?? ??? ???? ?? ??? ?????? ????? ???? ?? ?????.

Formula BSDF | Synopsys

?? ?????? ??? ?? ??? ?? ?? ??? ?? ???? ???, ??? ?? BRDF(??? ?? ?? ??)? BTDF(??? ?? ?? ??)? ?? ?????.

?? ???? ??? ???? ? ?? ?? ??? ?????. ???? ??? ???? BSDF?? ???, ??? ???? ???? ???? ? ????.

??? ???, ??? BRDF ????, ??? ?? ?? ? ???

??? BSDF ???? ??? ?? ?? ???? ??? ? ?? ???? ??????.

  • ?? ??? ? ??: BSDF ???? ??, ??, ??? ? ??? ?? ??? ??? ????, ??? ??? ??? ???? ? ??? ???. ??, ????(AR)? ?? ???? ???? ?? ?? ?? ??? ?? ????? ??? ? ??? ?????.
  • ?? ???: ??? ??? ?? ??? ?? ??? ???? ??? ?????? ??? ????? ? ?????.
  • ?? ??: ??? ? ?? ?? ??? ?? ????? BSDF ???? ??? ????, ??? ??? ?? ? ?? ??? ????? ????? ?????.
  • ??? ???: ????(VR) ?? ??? ??? ???? ??? ?? ??? ??? ????? BSDF ???? ????? ?????.

Synopsys? BSDF ?? ??? ?? ?????? ???? ? ??? ?? ??? ?? ???? ?????. ??? ? ?? ?? ?? ?? ?? ?? ???? ???? ?? ?? ???? ??? ?? ??? ???? ??? ?? ? ????.

Synopsys scattering measurement instruments: Mini-Diff VPro, REFLET 180S and Mini-Diff V2

Synopsys ?? ?? ??: Mini-Diff VPro, REFLET 180S, Mini-Diff V2

End-to-End Virtual Prototyping with ImSym

ImSym? ??? ?? ? ?? ?? ??????

ImSym ¨C Imaging System Simulator? ?? ????? ??? ???? ???? ???? ??? ??? ???? ????????. ? ??? ??, ??, ??? ?? ?? (ISP)? ??? ?? ??? ??? ?? ???? ???? ??? ? ?? ? ?? ?? ?????? ?????.

ImSym ????? ?????

??? ???? ? ? ???, BSDF ?? ???? ImSym ?????? ???? ??? ??? ??? ?? ? ??? ???? ? ? ?? ??? ????? ???? ??? ? ? ????. 

Using ImSym with BSDF Data for Machine Vision Design

???? ??? ?? ImSym? BSDF ??? ??

???? ?? ????? ???? ??? ??? ??? ???? ??? ???? ???? ???? ?????. ??? ???? ???? ???? ????????, ?? ?? ??? ??? ??? ????? ??? ???? ?? ?? ??(stray light) ??? ??? ???? ? ??????.

2464408415

??: Shutterstock

? ????? ?? ?? ?? (PCB) ??? ??? ???? ???? ???????????. ???? ??? ?????? ImSym ?????? ??? ?? ??? ?????.

  • Scene Object (?? ??): PCB ??? ??? ????, ??? ??? ???? ??? ????, ? ?? ??? ???? ???? ?????. ? ????? PCB? ?? ??? ?? ??? ???? ???? ?? ????, ?? ??? ?? ?????? ?? ?? ?????.
  • Lens System (?? ???): ?? ???? ???? ?? ???? ??????. ImSym? ??? ??? ?? ?? ??? ??? ??? ?? ??? ???? ? ?? ?? ??? ??? ??? ?????. ?? ??, ?? ??, ?? ?? ? ??? ??? ?? ??? ??? ? ???, ?? ?? ?? ??? ????? ??? ??? ??? ?? ?? ??? ??? ??? ? ????.
  • Stray Light Analysis (?? ??): ?? ???? ?? ??? ????? ?????. ImSym? ?? ???? ?? ????? ?? ??? ???? ? ??? ?? ??? ??? ?????. ?? ??? ??? 1? ????, ?? ??? ?? ??? ????? ??? ???? ??? ? ????. 
  • Detector (??): ?? ???? ???? ??? ??? ?????. ?? CCD, CMOS? ?? ?? ??, ???, ?? ? ?? ??? ???? ??? ??? ?? ??? ??? ?????. ??? ???? ????? ?? ?? ???? ?? ???? ???? ??? ??????? ? ??????.
  • Image Signal Processing (??? ?? ??): ??? ?? ??(ISP) ?????? ????????. ???? ??? ??, ?? ??, ??? ?? ?? ??? ?????. ??? ?? ?? ??? ?????, ?? ???? ? ?? ????? ?? ??? ??? ???? ????, ??? ???? ??? ? ??? ???? ? ????.
  • Simulation (?? ??? ?????): ImSym?? ???? ?? ???? ??? ?? ???? ??? ?????. ?? ?? ???? ??? ????? ??? ? ???, ??? ??? ???? ???? ??? ??? ? ????. ???? ???? ??? ?? ??? ?? ??? ??? ??? ??? ? ????.

 

ImSym ??? ????? ????? ¨C ?? ?? ??? ????? ??

? Scene Object? ??: ¡°Gold plated printed circuit board.¡± - Wikimedia Commons

??? ???? ???? ???? ?? ImSym ????? ??? ?????. PCB?? ?? ??? ?? ?? ???? ?? ????? ?????? ?????. ??, ???? ?? ?? ?? ?? ?? ????. ??? ??? PCB? ?? ?? ??? ???? ?? ?????. ?? ???? ??? ??? ??? ??????, ?? ??? ???? ??? ????. ??? ???? ???? ?? ???? ????, ?? ?? ??? ??? ???? ??? ???? ???? ?? ??? ??? ? ?? ?? ??? ??? ????.

?? ImSym ????? ??

? ??? ???? ? ?? ???, ImSym ?????? ?? PCB? ?? ??? ? ?? ???(BSDF)? ???? ????. ??? ??, ?? PCB ? ?? ??? ?? ???? ???? ??? ? ????. ?????? ???? ?? ??? ?? ??? ? ???, ?? ?? ?? ?? ??? ??? ? ??? ?????? ????? ??? ? ????. ??? ???? ??? ISP ??? ??? ??? ??? ? ?? ????? ????, ?? ?? PCB? ???? ?? ???? ??? ? ??? ?????. 

Synopsys Mini-Diff V2 ? ??? ?? BSDF ???? ??? ? ????. 

Synopsys Mini-Diff V2 can be linked to a computer when measuring the optical scattering properties of the PCB; results are instantly available to include in the ImSym model

Synopsys Mini-Diff V2? PCB? ??? ??? ??? ? ???? ???? ????? ???? ??? ? ???, ?? ??? ?? ImSym ??? ??? ? ????.

??? PCB? ?? ??? ??? ?????.

Left: BRDF perspective view of the copper for an incident angle of 20¡ã and the 630nm wavelength; Right: RGB view of the copper for an incident angle of 20¡ã

??: ??? 20¡ã, ?? 630nm? ?? ??? BRDF ?? ???; ???: ??? 20¡ã? ?? ??? RGB ?

??? ??? ??? ????? ???, ?? ?? ??? ??? ??? ???? ?? ??? ??????. ?? ?? ??? ?? ??? ?? ???? ??? ? ???? ?????.

???? ???? ?? ???? ?? ????, ??? ?? ?? ???? ???? ?? ??? ?? ?????. ??? ?? ??? PCB ?? ??? ???? ? ?? ??? ??? ??? ??? ??? ? ? ????.

Mini-Diff V2? ??? BSDF ???? ImSym ??? ????, ?? ? ISP ????? ???? ?? ??(oversaturation)? ????, PCB? ??? ????? ????? ??? ? ????. ? ??, ?? ??? ???? ???? ?? ????, ?? ?? ??? ???? PCB ??? ???? ?????. ?? PCB? ?? ???? ????? ImSym ?????? ??? ????.

BSDF ???? ???? ?? ? ISP ?? ????? ??? ?? ImSym ?????

 

? ??? ?? ??? ? ??? ?? ???? ???? ?? ?? ????? ???? ?????, PCB? ???? ???? ?? ?? ??? ?????.

Accelerating Imaging Design Innovation

??? ??? ?? ?? ???

ImSym? ?? ???? ?? ?????? ???? ? ??? ????, ?? ???? ??? ??? ????, ??? ??? ? ?? ?? ??? ?? ???? ? ?? ????. ??? ??? ?? ??? ??? ??? ?????? ?? ??? ??? ???? ?? ?? ??????.

ImSym? ?? ??? ?? ??(image acquisition chain)? ??? ? ? ???, ???? ?? ?? ???? ??? ???? ??? ? ????. Synopsys? ? ?? ?? ??? ?? ??? BSDF ???? ?? ?? ?? ?? ??? ???? ?????, ??? ?? ???? ImSym? ?????? ?? ?????? ?? ??? ??? ??? ??(virtual twin) ??? ??? ?? ?? ?????? ??? ? ????.