公开(公告)号：US20150248834A1

公开(公告)日：2015-09-03

申请号：US14431053

申请日：2013-10-10

Applicant: TATA CONSULTANCY SERVICES LIMITED

Inventor： Rohan Banerjee ,  Aniruddha Sinha

IPC: G08G1/01

CPC classification number: G08G1/01 ,  G08G1/0104 ,  G08G1/0133 ,  G08G1/04

Abstract: Systems and methods for real-time traffic detection are described. In one embodiment, the method comprises capturing ambient sounds as an audio sample in a user device, and segmenting the audio sample into a plurality of audio frames. Further, the method comprises identifying periodic frames amongst the plurality of audio frames. Spectral features of the identified periodic frames are extracted, and horn sounds are identified based on the spectral features. The identified horn sounds are then used for real-time traffic detection.

Abstract translation: 描述用于实时流量检测的系统和方法。 在一个实施例中，该方法包括在用户设备中捕获环境声音作为音频样本，并将音频样本分割成多个音频帧。 此外，该方法包括识别多个音频帧之间的周期性帧。 提取识别的周期帧的光谱特征，并且基于光谱特征识别喇叭声音。 然后，识别的喇叭声用于实时流量检测。