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Comparison of 3D Imaging Technologies  

2015-08-14 17:55:00|  分类: 默认分类 |  标签: |举报 |字号 订阅

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 Time of Flight (ToF)Stereoscopic VisionFixed Structured LightProgrammable Structured
Light (DLP)
Operational PrincipleIR pulse, measure light transit timeTwo 2D sensors emulate human eyesSingle pattern visible or IR illumination, detects distortionMultiple pattern visible or IR illumination, detects distortion
Point Cloud GenerationDirect out of chipsetHigh SW ProcessingMedium SW ProcessingSW Processing scales with # of patterns
LatencyLowMediumMediumMedium
Active IlluminationYesNoYesYes – Customizable Spectrum
Low Light PerformanceGoodWeakGoodGood
Bright Light PerformanceMediumGoodMedium / Weak
Depends on illumination power
Medium / Weak
Depends on illumination power
Power ConsumptionMedium/High
Scales w/ distance
LowMediumMedium
Scales with distance
RangeShort to long range
Depends on laser power & modulation
Mid range
Depends on spacing between cameras
Very short to mid range
Depends on illumination power
Very short to mid range
Depends on illumination power
ResolutionQQVGA, QVGA ->
Roadmap to VGA
Camera DependentCamera DependentWVGA to 1080p ->
Roadmap to WQXGA
Depth Accuracymm to cm
Depends on resolution of sensor
mm to cm
Difficulty with smooth surface
mm to cm?m to cm
Scanning SpeedFast
Limited by sensor speed
Medium
Limited by software complexity
Fast
Limited by camera speed
Fast / Medium
Limited by camera speed
Applications    
LocationXX X
IdentificationXXXX
Measurement & InspectionXXXX
Biometrics   X
UI Control / GamingX X 
Augmented RealityXX X

 

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