Min Wang, Zeyang Li, Chun Wang, Xinyuan Shi. Key Frame Extraction Algorithm of Sign Language Based on Compressed Sensing and SURF Features[J]. Laser & Optoelectronics Progress, 2018, 55(5): 051013
- Laser & Optoelectronics Progress
- Vol. 55, Issue 5, 051013 (2018)
Fig. 1. Matching image of two sign language frame
Fig. 2. Key frame extraction algorithm diagram of sign language based on compressed sensing and SURF feature
Fig. 3. Partial test videos. (a) Laboratory environment; (b) different environment and light conditions
Fig. 4. Time sequence diagram of interframe similarity curve extreme point. (a) Extreme point; (b) key frame
Fig. 5. Output key frames of three algorithms. (a) Proposed algorithm; (b) non-specific dynamic sign language video key frame detection algorithm; (c) unsupervised clustering algorithm
Fig. 6. Non-specific part of the key frames
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Table 1. Subshot segmentation and key frame detection
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Table 2. Comparison of experimental data
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