A novel hierarchical Bag-of-Words model for compact action representation

• Main Authors: SUN, Qianru, Qianru, LIU, Hong, MA, Liqian, ZHANG, Tianwei
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2016
• Subjects: Action representation; Bag-of-Words; Vector of Locally Aggregated Descriptors; Fisher Vectors; Computer and Systems Architecture; Computer Engineering
• Online Access: https://ink.library.smu.edu.sg/sis_research/4452; https://ink.library.smu.edu.sg/context/sis_research/article/5455/viewcontent/nero.pdf
• Institution: Singapore Management University

Bag-of-Words (BOW) histogram of local space-time features is very popular for action representation due to its high compactness and robustness. However, its discriminant ability is limited since it only depends on the occurrence statistics of local features. Alternative models such as Vector of Loca...