SYSTEMS AND METHODS FOR GENERATING HIGH DYNAMIC RANGE IMAGES

An imaging system may include an array of image pixels, each image pixel including two photodiodes. A first photodiode may surround a second photodiode. Each image pixel may include two low gain capacitors. A first low gain capacitor may be coupled to a floating diffusion region connected to the two photodiodes via respective transistors. A second low gain capacitor may be coupled to the second photodiode directly or via an interposing transistor. Charge generated by the first photodiode may be separated into an overflow portion stored at the first low gain capacitor and a remaining portion stored at the first photodiode. The overflow charge portion may be used to generated a first signal. The remaining charge portion (along with other charge generated by the first photodiode) may be used to generate a second signal. The charge generated by the second photodiode may be used to generated a third signal.