Evaluation and Characterization of a Logarithmic Image Sensor

Abstract: In this thesis, issued by Axis Communications AB, a CMOS-type image sensor with a logarithmic response and wide dynamic range capabilities was evaluated and char- acterized with respect to signal response and noise characteristics. The evaluation was performed in the context of the need for wide dynamic range imaging in video surveillance. Noise characteristics were thoroughly evaluated with measurements performed with an integrating sphere. Additionally some aspects of temperature dependence of the device were investigated. The dynamic range was measured with a laser di_raction setup. The capability of the sensor to accurately capture motion was also investigated.