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| Model | Active Pattern Area(mm) | Overall Dimension(mm) | Pattern Ratio |
| LT-RPN-0.5X-P | 100*177.8mm (≈3.94 x 7.0 in) | 125*200*0.3 | 0.5X |
| LT-RPN-1.0X-P | 200*355.6mm (≈7.87x14 in) | 250*400*0.3 | 1X |
| LT-RPN-1.5X-P | 300*533.3mm(≈11.8 x 21 in ) | 375*600*0.3 | 1.5X |
| LT-RPN-2.0X-P | 400*711.1mm (≈15.75 x 28 in) | 500*800 | 2X |
| LT-RPN-4.0X-P | 800*1422.2mm (≈31.5 x 60 in) | 1000*1600 | 4X |
The Highgovision Random Pattern (Noise) Test Chart is designed for precise measurement of image sensor noise, texture preservation, and signal-to-noise performance in professional camera calibration and quality control workflows.
Unlike uniform or repetitive targets, the random pattern provides a statistically uniform texture that minimizes aliasing and ensures accurate analysis of noise power spectral density (PSD). This makes it the ideal tool for evaluating both spatial noise characteristics and fine-detail retention in modern imaging systems.
Random Texture Region – Enables accurate assessment of noise, sharpness, and texture reproduction without introducing pattern bias.
Gray Patch Reference Zones – Support noise PSD normalization and dynamic range analysis.
High-Precision Manufacturing – Printed or etched on matte substrates with consistent surface reflectance for stable results.
Multiple Substrates Available – Photographic paper, film, or glass options to suit laboratory or production environments.
Custom Sizes & Layouts – From compact sensor testing to full-format camera calibration, patterns can be customized to any dimension or contrast level.
Compatible Software – Compatible for Imatest, ColorTest, and other professional image-quality analysis tools.
Image sensor noise and SNR testing
Texture loss evaluation in ISP tuning
Machine vision camera quality control
Image compression and denoising algorithm validation
Dynamic range and low-light performance benchmarking
With precision fabrication and deep understanding of optical metrology, Highgovision delivers reliable, repeatable, and traceable calibration targets.
Whether you need standard charts or custom random patterns tailored to your optical setup, our engineering team ensures consistency from design to delivery.
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