1. An imaging system, comprising: (a) means for generating photoacoustic signals; (b) at least a first transducer adapted to: (i) transmit ultrasound waves; (ii) receive ultrasound signals generated from the ultrasound waves; and (iii) receive photoacoustic signals generated from the photoacoustic signal means; (c) a motion estimator adapted to estimate motion based on the ultrasound signals; and (d) an image combiner adapted to receive and combine ultrasound data, photoacoustic data and motion estimator data generated from the received ultrasound and photoacoustic signals and the motion estimator and correct for motion to generate at least a photoacoustic image.