  This paper provides an overview of the on-going compact descriptors for video
analysis standard (CDVA) from the ISO/IEC moving pictures experts group (MPEG).
MPEG-CDVA targets at defining a standardized bitstream syntax to enable
interoperability in the context of video analysis applications. During the
developments of MPEGCDVA, a series of techniques aiming to reduce the
descriptor size and improve the video representation ability have been
proposed. This article describes the new standard that is being developed and
reports the performance of these key technical contributions.
