Transmitting informative components of Fisher codes for mobile visual search
Guixuan Zhang; Zhi Zeng; Shuwu Zhang; Qinzhen Guo
2015
会议日期2015年4月19日-4月24日
会议地点布里斯班,澳大利亚
关键词Soft-assignment Adjusting Bitrate Scalable Codes Informative Components Fisher Vector
英文摘要Existing techniques usually adopt compact descriptors such as Fisher vector for mobile visual search, since compact descriptors are memory-efficient and suitable for fast transmission. In common Fisher vector methods, in order to make the size of image representations small enough for efficient transmission, only a small number of visual words are used. However, this choice usually sacrifices the search
accuracy. In this paper, a Soft-Assignment Adjusting approach is proposed to just select informative components of descriptors for query. With this method, we can adopt more visual words to improve accuracy, while the memory usage is still low. Furthermore, efficient bitrate scalable codes are proposed in order to accommodate the network bandwidth variation. Experiments performed on benchmark datasets show that our proposed approach outperforms the state-of-the-art methods for mobile visual search.

内容类型会议论文
源URL[http://ir.ia.ac.cn/handle/173211/14309]  
专题数字内容技术与服务研究中心_新媒体服务与管理技术
作者单位Institute of Automation, Chinese Academy of Sciences, Beijing, China
推荐引用方式
GB/T 7714
Guixuan Zhang,Zhi Zeng,Shuwu Zhang,et al. Transmitting informative components of Fisher codes for mobile visual search[C]. 见:. 布里斯班,澳大利亚. 2015年4月19日-4月24日.
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