· AIM: To observe the stereoacuity before and after operation of Parks shift of neutral zone in children with congenital idiopathic nystagmus. 目的:观察先天性特发性眼球震颤儿童Parks中间带移位术前后的立体视觉。
Stereoacuity before and after operation of Parks shift of neutral zone in children with congenital nystagmus 儿童先天性眼球震颤行Parks中间带移位术前后的立体视觉
After the different nystagmus signals were processed through the EMD decomposition and Hilbert transform, the intrinsic mode functions showed the differences in the domain, frequency domain, time-frequency domain and energy spectrum. The method was compared the results by the wavelet decompostion. 研究不同的眼震信号经过EMD分解和Hilbert变换后,各IMF分量在时域、频域、时频域以及能量谱出现的不同差异,并与小波分解结果进行比较。