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Author:

Lin, Jia (Lin, Jia.) | Ruan, Xiaogang (Ruan, Xiaogang.) | Yu, Naigong (Yu, Naigong.) (Scholars:于乃功) | Yang, Yee-Hong (Yang, Yee-Hong.)

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EI Scopus SCIE PubMed

Abstract:

Noise and constant empirical motion constraints affect the extraction of distinctive spatiotemporal features from one or a few samples per gesture class. To tackle these problems, an adaptive local spatiotemporal feature (ALSTF) using fused RGB-D data is proposed. First, motion regions of interest (MRoIs) are adaptively extracted using grayscale and depth velocity variance information to greatly reduce the impact of noise. Then, corners are used as keypoints if their depth, and velocities of grayscale and of depth meet several adaptive local constraints in each MRoI. With further filtering of noise, an accurate and sufficient number of keypoints is obtained within the desired moving body parts (MBPs). Finally, four kinds of multiple descriptors are calculated and combined in extended gradient and motion spaces to represent the appearance and motion features of gestures. The experimental results on the ChaLearn gesture, CAD-60 and MSRDailyActivity3D datasets demonstrate that the proposed feature achieves higher performance compared with published state-of-the-art approaches under the one-shot learning setting and comparable accuracy under the leave-one-out cross validation.

Keyword:

one-shot learning optical flow motion region of interest gesture recognition spatiotemporal feature adaptive

Author Community:

  • [ 1 ] [Lin, Jia]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 2 ] [Ruan, Xiaogang]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 3 ] [Yu, Naigong]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 4 ] [Lin, Jia]Beijing Key Lab Computat Intelligence & Intellige, Beijing 100124, Peoples R China
  • [ 5 ] [Ruan, Xiaogang]Beijing Key Lab Computat Intelligence & Intellige, Beijing 100124, Peoples R China
  • [ 6 ] [Yu, Naigong]Beijing Key Lab Computat Intelligence & Intellige, Beijing 100124, Peoples R China
  • [ 7 ] [Yang, Yee-Hong]Univ Alberta, Dept Comp Sci, Edmonton, AB T6G 2E8, Canada

Reprint Author's Address:

  • [Lin, Jia]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China;;[Lin, Jia]Beijing Key Lab Computat Intelligence & Intellige, Beijing 100124, Peoples R China

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Source :

SENSORS

Year: 2016

Issue: 12

Volume: 16

3 . 9 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

ESI HC Threshold:221

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 5

SCOPUS Cited Count: 6

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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