A non-speech audio CAPTCHA based on acoustic event detection and classification.
Hendrik MeutznerDorothea KolossaPublished in: EUSIPCO (2016)
Keyphrases
- event detection
- event recognition
- visual speech
- video event detection
- speech music discrimination
- video analysis
- feature vectors
- prosodic features
- feature extraction
- acoustic features
- image classification
- text classification
- audio visual
- soccer video
- decision trees
- trecvid multimedia event detection
- multimedia event detection
- mel frequency cepstral coefficients
- feature selection
- speaker identification
- sports video
- video surveillance
- activity recognition
- supervised learning
- video sequences
- machine learning
- broadcast news
- text to speech
- emotion recognition
- speech signal
- audio stream