Research on Luminosity Compensation Method Based on Attenuation Rate Matching
The accuracy of photometric detection of automotive lamps is greatly affected by the temperature of the light source,which can easily lead to misdetection of the lamps.To address this issue,a photometric compensation method based on attenuation rate matching is proposed.First,a set of first-order differential data of the measured lamp's photometric values is matched for similarity with the first-order differential attenuation data of existing reference lamps to find the best matching position.Then,by combining the photometric variation curves of the reference lamps,the compensation coefficient for the measured lamp's photometric values can be obtained.Finally,compensating the initial measurement values yields accurate photometric values.Experimental results show that the measurement error of this method is less than 3％,significantly improving the accuracy of photometric measurements compared to direct measurement methods.This approach can be effectively applied in the field of online lamp detection.
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维普
