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Zhuowei Cai

dblp:151/8887 · DBLP profile ↗
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1ranked-venue papers
1as first author
0since 2021 · last 2014
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 1 · 1 first-authorGraphics, computer vision, multimedia, augmented reality and games · 1 · 1 first-author

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer graphics and multimedia
1 paper
Multimedia analysis and retrieval · 77% Image and video processing · 23%
Artificial intelligence
1 paper
Video understanding and tracking · 100%

Topics — the 3 heaviest of 4, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Computer vision › Video understanding and tracking
action recognition
0.212014
Multi-view Super Vector for Action Recognition · CVPR 2014
Multimedia analysis and retrieval › multimedia feature representation
video representation
0.212014
Multi-view Super Vector for Action Recognition · CVPR 2014
Image and video processing › feature extraction › feature descriptor
local feature descriptor
0.112014
Multi-view Super Vector for Action Recognition · CVPR 2014

Methods — techniques the papers use, named apart from their topics

probabilistic canonical correlation analysis · 0.4multi-view super vector · 0.4kernel average · 0.4
YearPublicationVenuePosition
2014 Multi-view Super Vector for Action Recognition
abstract
Images and videos are often characterized by multiple types of local descriptors such as SIFT, HOG and HOF, each of which describes certain aspects of object feature. Recognition systems benefit from fusing multiple types of these descriptors. Two widely applied fusion pipelines are descriptor concatenation and kernel average. The first one is effective when different descriptors are strongly correlated, while the second one is probably better when descriptors are relatively independent. In practice, however, different descriptors are neither fully independent nor fully correlated, and previous fusion methods may not be satisfying. In this paper, we propose a new global representation, Multi-View Super Vector (MVSV), which is composed of relatively independent components derived from a pair of descriptors. Kernel average is then applied on these components to produce recognition result. To obtain MVSV, we develop a generative mixture model of probabilistic canonical correlation analyzers (M-PCCA), and utilize the hidden factors and gradient vectors of M-PCCA to construct MVSV for video representation. Experiments on video based action recognition tasks show that MVSV achieves promising results, and outperforms FV and VLAD with descriptor concatenation or kernel average fusion strategy.
Zhuowei Cai, Limin Wang 0002, Xiaojiang Peng, Yu Qiao 0001
CVPR1