关键词: 字幕提取, 高性能计算, MIC

Abstract:

Video caption retrieval is an important part of video retrieval area. With the improvement of OCR, video caption retrieval algorithm has also made a number of significant breakthroughs. However, as the retrieval results get enhanced, the fact that a video contains a large number of images and text information makes data processing the performance bottleneck. Manycore platforms develop rapidly and lay a nice hardware basis for high performance computing study. In this paper we use Intel MIC, a typical manycore platform, to accelerate video caption retrieval algorithms, and the Open MP parallel language is adopted. After an introduction of video caption retrieval, we present the parallel scheme of kernel algorithms in Intel MIC platform. Finally, we test the system on Intel Xeon Phi 7110P and obtain a desirable speedup ratio．

Key words: video caption retrieval;high performance computing;MIC