JOINT DICTIONARY GENERATION METHOD FOR IMAGE PROCESSING INTERLACE BASED HIGH DYNAMIC RANGE IMAGING APPARATUS USING THE JOINT DICTIONARY AND IMAGE PROCESSING METHOD OF THE SAME

摘要

According to an embodiment of the present invention, an interlace-based high dynamic range (HDR) imaging device comprises: a de-interlacing unit for generating high- and low-exposure Bayer frames by de-interlacing an interlace Bayer low frame in which high- and low-exposure regions are interlaced in one image frame; a demosaicing unit for converting the high- and low-exposure Bayer frames into high- and low- exposure RGB frames; a reconstruction unit for removing an interlaced artifact and noise from the high- and low-exposure RGB frames using joint dictionaries generated by joint dictionary learning for a training data set including a plurality of bases which corresponds to each other in a one-to-one manner and has different corresponding values; and an HDR generating unit for generating an HDR image frame by combining the high- and low-exposure RGB frames from which the interlace artifact and noise are removed in the reconstruction unit.