TCG Challenge #1 CALCULATING CAMERA SNR. Agenda SNR definition Calculation Method Visual Results Results Conclusions.

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Presentation transcript:

TCG Challenge #1 CALCULATING CAMERA SNR

Agenda SNR definition Calculation Method Visual Results Results Conclusions

Definition Traditionally, SNR has been defined as the ratio of the average signal value to the standard deviation of the background. However, when presented with a high-contrast scene, many imaging systems clamp the background to uniform black, forcing to zero, artificially making the SNR infinite. In this case a better definition of SNR is the ratio of the average signal value to the standard deviation of the signal.

Method

Visual Results “True Image” ORIGINAL IMAGE“TRUE IMAGE” BASED ON MEAN

Visual Results “True Image” ORIGINAL IMAGE“TRUE IMAGE” BASED ON MEDIAN

Visual Results “True Image” ORIGINAL IMAGE“TRUE IMAGE” BASED ON MODE

Median vs Mean vs Mode

Results

Conclusion