The invention relates to a smart traffic technology, and discloses a traffic volume detection method, which comprises the following steps: acquiring vehicle audio data of a target area, and preprocessing the vehicle audio data to obtain a processed frame signal; performing fast Fourier transform on the processed frame signal to obtain a frame frequency spectrum; updating the frame frequency spectrum by using a preset Mel-triangle filter bank to obtain an updated frame frequency spectrum; performing discrete cosine transform processing on the updated frame frequency spectrum to obtain a cepstrum coefficient; calculating a cepstrum distance by using the cepstrum coefficient and the obtained noise cepstrum coefficient; and extracting features of the processing frame signals by using short-time energy, and performing fusion processing according to the short-time energy, the cepstrum distance and the features to obtain traffic flow information in the target area. The invention further provides a traffic volume detection device, electronic equipment and a storage medium. According to the invention, the accuracy of traffic volume detection can be improved.
本发明涉及智慧交通技术,揭露一种交通量检测方法,包括:获取目标区域的车辆音频数据,对车辆音频数据进行预处理,得到处理帧信号;对处理帧信号进行快速傅里叶变换,得到帧频谱;利用预设的梅尔三角滤波器组对帧频谱进行更新,得到更新帧频谱;对更新帧频谱进行离散余弦变换处理,得到倒谱系数;利用倒谱系数和获取到的噪声倒谱系数计算倒谱距离;利用短时能量提取所述处理帧信号的特征,并根据短时能量、倒谱距离、特征进行融合处理,得到所述目标区域内的车流量信息。本发明还提出一种交通量检测装置、电子设备以及存储介质。本发明可以提高交通量检测的准确率。
Traffic volume detection method and device, electronic equipment and readable storage medium
交通量检测方法、装置、电子设备及可读存储介质
21.12.2021
Patent
Elektronische Ressource
Chinesisch
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