Didier LeGall is a visionary, pioneer and expert in the video compression industry, including authoring and co-authoring many digital-video-related patents.

Prior to Ambarella, LeGall was co-founder and CTO of C-Cube until its acquisition by LSI Logic. At LSI, LeGall served in several executive functions. Before C-Cube, LeGall managed the Visual Communication group at Bell Communications Research (Bellcore) and held an adjunct professorship at Columbia University.

LeGall started the MPEG standardization effort and served as chairman of the MPEG Video Group from 1989 to 1995, delivering the MPEG-1 and MPEG-2 international standards.