TY - JOUR
T1 - Acoustic pornography recognition using fused pitch and mel-frequency cepstrum coefficients
AU - Banaeeyan, Rasoul
AU - Karim, Hezerul Abdul
AU - Lye, Haris
AU - Fauzi, Mohammad Faizal Ahmad
AU - Mansor, Sarina
AU - See, John
N1 - Funding Information:
This research was fully funded by TELEKOM Malaysia Research and Development (TM R&D).
Publisher Copyright:
© IJTech 2019.
PY - 2019/11/29
Y1 - 2019/11/29
N2 - The main objective of this paper is pornography recognition using audio features. Unlike most of the previous attempts, which have concentrated on the visual content of pornography images or videos, we propose to take advantage of sounds. Using sounds is particularly important in cases in which the visual features are not adequately informative of the contents (e.g., cluttered scenes, dark scenes, scenes with a covered body). To this end, our hypothesis is grounded in the assumption that scenes with pornographic content encompass audios with features specific to those scenes; these sounds can be in the form of speech or voice. More specifically, we propose to extract two types of features, (I) pitch and (II) mel-frequency cepstrum coefficients (MFCC), in order to train five different variations of the k-nearest neighbor (KNN) supervised classification models based on the fusion of these features. Later, the correctness of our hypothesis was investigated by conducting a set of evaluations based on a porno-sound dataset created based on an existing pornography video dataset. The experimental results confirm the feasibility of the proposed acoustic-driven approach by demonstrating an accuracy of 88.40%, an F-score of 85.20%, and an area under the curve (AUC) of 95% in the task of pornography recognition.
AB - The main objective of this paper is pornography recognition using audio features. Unlike most of the previous attempts, which have concentrated on the visual content of pornography images or videos, we propose to take advantage of sounds. Using sounds is particularly important in cases in which the visual features are not adequately informative of the contents (e.g., cluttered scenes, dark scenes, scenes with a covered body). To this end, our hypothesis is grounded in the assumption that scenes with pornographic content encompass audios with features specific to those scenes; these sounds can be in the form of speech or voice. More specifically, we propose to extract two types of features, (I) pitch and (II) mel-frequency cepstrum coefficients (MFCC), in order to train five different variations of the k-nearest neighbor (KNN) supervised classification models based on the fusion of these features. Later, the correctness of our hypothesis was investigated by conducting a set of evaluations based on a porno-sound dataset created based on an existing pornography video dataset. The experimental results confirm the feasibility of the proposed acoustic-driven approach by demonstrating an accuracy of 88.40%, an F-score of 85.20%, and an area under the curve (AUC) of 95% in the task of pornography recognition.
KW - Acoustic recognition
KW - KNN classifier
KW - MFCC features
KW - Pornography detection
UR - http://www.scopus.com/inward/record.url?scp=85076029268&partnerID=8YFLogxK
U2 - 10.14716/ijtech.v10i7.3270
DO - 10.14716/ijtech.v10i7.3270
M3 - Article
AN - SCOPUS:85076029268
SN - 2087-2100
VL - 10
SP - 1335
EP - 1343
JO - International Journal of Technology
JF - International Journal of Technology
IS - 7
ER -