GPU Based fast MPEG-CDVS encoder
The compact descriptors for visual search (CDVS) standard from ISO/IEC Moving Picture Experts Group (MPEG) has received increasing attentions due to its effectiveness in mobile visual search related applications. To explore the efficiency of CDVS in real-time applications, we implement the first optimized CDVS encoder based on the graphics processing unit (GPU). In particular, the CDVS feature extraction is implemented in a CPU and GPU collaborative architecture, and the most of the computation-intensive operations are transferred to GPU platform, which achieves significant speedup for CDVS compared with CPU implementation. Extensive evaluations on standard datasets provide promising results of the proposed scheme for real applications scenarios.