Mpeg 7 audio and beyond audio content indexing and retrieval phần 5 ppt

... SPOKEN CONTENT In this chapter we use the well defined MPEG- 7 Spoken Content description standard as an example to illustrate challenges in this domain. The audio part of MPEG- 7 contains a SpokenContent ... for word W λ w S 5 S 4 S 3 S 2 S 1 x 1 x 2 x 3 x 4 x 5 x 6 ( * ) ( * ) Likelihood Score = b 1 (x 1 ).a 13 .b 3 (x 2 ).a 34 .b 4 (x 3 ).a 44 .b 4 (x 4 ).a 45 .b 5 (x...

Ngày tải lên: 09/08/2014, 18:23

... InstrumentTimbre 173 5. 1.3 HarmonicInstrumentTimbre 174 5. 1.4 PercussiveInstrumentTimbre 176 5. 1 .5 Distance Measures 176 5. 2 Melody 177 5. 2.1 Melody 177 5. 2.2 Meter 178 5. 2.3 Scale 179 5. 2.4 Key 181 16 ... 161 4 .5 Conclusions 163 4 .5. 1 MPEG- 7 Interoperability 163 4 .5. 2 MPEG- 7 Flexibility 164 4 .5. 3 Perspectives 166 References 1 67 5 Music Description Tools...

Ngày tải lên: 27/05/2014, 03:59

... 22 Audio 3 Audio analysis 2, 59 , 65 Audio and video retrieval 2 Audio attribute 164 Audio broadcast 4 Audio class 77 , 258 Audio classification 50 , 66, 71 , 74 Audio classifier 32 Audio content 259 Audio ... classes 50 , 70 , 75 , 78 Sound classification 6, 11, 59 , 60, 61, 65, 70 , 73 , 77 , 85, 92, 254 Sound classification accuracy (%) 259 Sound...

Ngày tải lên: 09/08/2014, 18:22

... InstrumentTimbre 173 5. 1.3 HarmonicInstrumentTimbre 174 5. 1.4 PercussiveInstrumentTimbre 176 5. 1 .5 Distance Measures 176 5. 2 Melody 177 5. 2.1 Melody 177 5. 2.2 Meter 178 5. 2.3 Scale 179 5. 2.4 Key 181 Copyright ... 161 4 .5 Conclusions 163 4 .5. 1 MPEG- 7 Interoperability 163 4 .5. 2 MPEG- 7 Flexibility 164 4 .5. 3 Perspectives 166 References 1 67 5 Music Description...

Ngày tải lên: 09/08/2014, 18:22

... layer. MPEG- 7 Audio and Beyond: Audio Content Indexing and Retrieval H G. Kim, N. Moreau and T. Sikora © 20 05 John Wiley & Sons, Ltd 2 .7 TIMBRAL DESCRIPTORS 41 Figure 2.13 MPEG- 7 LAT and TC ... ASR and its use for MPEG- 7 SpokenContent description. The structure of the MPEG- 7 SpokenContent description itself is presented in detail and discussed in...

Ngày tải lên: 09/08/2014, 18:22

... ranked according to MPEG- 7 Audio and Beyond: Audio Content Indexing and Retrieval H G. Kim, N. Moreau and T. Sikora © 20 05 John Wiley & Sons, Ltd 2 .7 TIMBRAL DESCRIPTORS 47 2 .7. 6 Harmonic Spectral ... vectors are generated from audio clips, and if required reduced in dimension, these are fed into classifiers. The MPEG- 7 audio LLDs and some other non...

Ngày tải lên: 09/08/2014, 18:22

... for three HMMs HMM topology Number of states 45 678 Left–right HMM 77  3 75  978  178  877 5 Forward and backward HMM 61 878  173 76 77 5 9 Ergodic HMM 58  6 75 58 01843819 corresponding classification ... accuracies (%) of 15 sound classes Feature extraction methods Feature dimension 71 323 PCA-ASP 829902 95 0 ICA-ASP 81 79 1 59 46 NMF-ASP 74  57 7  278 6 MFCC 90...

Ngày tải lên: 09/08/2014, 18:22

... DOCUMENT RETRIEVAL 1 57 Target String β (n = 7) Source String α (m = 6) u 0 1 2 0123 v m ∅ ∅ Y mYC 0 123 1 0 21 0 4 E 4 3 n 32 1 4 C 432 5 @ 5 6 n 63 5 l 5 6 m 6 7 h 7 12 3 456 1 23 45 12 3 45 123 45 234 54 32 3 45 543 Final ... various kinds of spoken content indexing and retrieval systems. 4 .5. 1 MPEG- 7 Interoperability It is not possible to standardize...

Ngày tải lên: 09/08/2014, 18:23

... tuning note, 0 0 .5 1 1 .5 2 2 .5 3 3 .5 4 4 .5 5 –1.0 –0 .5 0.0 0 .5 1.0 time in s time in s amplitude 0 0 .5 1 1 .5 2 2 .5 3 3 .5 4 4 .5 5 50 0 50 100 150 200 frequency in Hz Figure 5. 18 Top: the PCM ... like “warm” or MPEG- 7 Audio and Beyond: Audio Content Indexing and Retrieval H G. Kim, N. Moreau and T. Sikora © 20 05 John Wiley & Sons, Ltd...

Ngày tải lên: 09/08/2014, 18:23

... a fingerprint, this choice is beyond the scope of the MPEG- 7 standardization and left up to the individual application. (Herre et al., 2002) proposes a simple matching of MPEG- 7 AudioSignature descriptions ... www.musipedia.org. N 57 (2003) Information technology - Multimedia content description interface - Part 4: Audio, AMENDMENT 1: Audio extensions, Audio Group Text of...

Ngày tải lên: 09/08/2014, 18:23