Digital tal Integ tegratio ation n Se Sensor r (DIS) S) - PowerPoint PPT Presentation

Digital tal Integ tegratio ation n Se Sensor r (DIS) S) Signal charge Final digital value Analog Signal . . . ADC Processing (a) SOA CMOS APS Signal charge Digital memory block Final digital value Analog Signal . . . ∑ ADC Processing Digital integration (b) DIS . . .

DIS S as HDR Image e Se Sensor T SOA CMOS APS T 2 T 3 T 4 T 1 DIS Signal charge F max N FW N read_noise N read_noise 𝑜 F Light intensity min

DIS S as HDR Image e Se Sensor SNR /dB • Canon EOS 60D DSLR Light intensity (normalized) • Using just 8 bits of digital output per frame SNR vs. light intensity • Sum 16 frames for 16 varying integration-time case • Achieve over 88 dB DR

“Quantized” DIS ( qDIS IS) Probab abili lity ty