Speckle noise in bar-code scanning systems-power spectral density and SNR

Keyphrases

• Barcode Scanning 100%
• Barcoding 50%
• Beam Scanning 50%
• Closed-form Expression 50%
• Coherent Illumination 50%
• Edge Detection 50%
• Flying Spot 50%
• Influence of Speckle Noise 50%
• Laser Beam Scanning 50%
• Laser Beams 50%
• Laser-based 50%
• Light Scattering 100%
• Noise Power 50%
• Photodetector 50%
• Power Spectral Density 100%
• Scanning Beam 50%
• Scanning System 100%
• Signal-to-noise Ratio 50%
• Speckle Noise 100%
• Speckle Pattern 50%
• System Energy 100%
• System Information 50%
• Total Noise 50%

Engineering

• Bar Code 100%
• Closed Form Expression 33%
• Edge Detection 33%
• Gaussians 33%
• Laser Beam 66%
• Noise Power 33%
• Photodetector 33%
• Power Spectral Density 100%
• Scattered Light 66%
• Signal-to-Noise Ratio 33%
• Speckle 100%

Physics

• Flying Spot Scanner 50%
• Gaussian Distribution 50%
• Laser Beams 100%
• Power Spectral Density 100%
• Signal-to-Noise Ratio 50%
• Speckle Patterns 50%