arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1709.06508cs.CV
收藏

基于频率解码局部描述子的人脸检索

Face Retrieval using Frequency Decoded Local Descriptor

Indian Institute of Information Technology(印度信息技术学院)

Shiv Ram Dubey

摘要:

局部描述符一直是大多数计算机视觉问题的核心。大多数现有的局部描述符是在原始输入图像上生成的。为了提高局部描述符的鉴别能力,一些研究者利用高通和低通滤波器将原始图像转换为多幅图像,然后在每幅图像上计算局部描述符,最后将其连接成一个描述符。通过这样做,这些方法不利用频率间关系,频率间关系导致可以实现的描述符的辨别能力的较少改进。在本文中,这个问题是解决利用解码器的概念,多通道解码的本地二进制模式的多频率模式。提出了一种频率解码局部二进制模式(FDLBP),它由两个解码器组成。每个解码器以一个低频模式和两个高频模式工作。最后,来自两个解码器的描述符被连接以形成单个描述符。人脸检索实验在四个基准和具有挑战性的数据库,如PaSC,LFW,PubFig和ESSEX。实验结果证实了FDLBP描述符与LBP、SOBEL_LBP、BoF_LBP、SVD_S_LBP、mdLBP等现有描述符相比的优越性。

英文摘要:

The local descriptors have been the backbone of most of the computer vision problems. Most of the existing local descriptors are generated over the raw input images. In order to increase the discriminative power of the local descriptors, some researchers converted the raw image into multiple images with the help of some high and low pass frequency filters, then the local descriptors are computed over each filtered image and finally concatenated into a single descriptor. By doing so, these approaches do not utilize the inter frequency relationship which causes the less improvement in the discriminative power of the descriptor that could be achieved. In this paper, this problem is solved by utilizing the decoder concept of multi-channel decoded local binary pattern over the multi-frequency patterns. A frequency decoded local binary pattern (FDLBP) is proposed with two decoders. Each decoder works with one low frequency pattern and two high frequency patterns. Finally, the descriptors from both decoders are concatenated to form the single descriptor. The face retrieval experiments are conducted over four benchmarks and challenging databases such as PaSC, LFW, PubFig, and ESSEX. The experimental results confirm the superiority of the FDLBP descriptor as compared to the state-of-the-art descriptors such as LBP, SOBEL_LBP, BoF_LBP, SVD_S_LBP, mdLBP, etc.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑