New technology has been developed to monitor brain blood flow with improved sensitivity and usability.

4.开发了新技术来监测脑血流，提高了灵敏度和可用性。

Both Viola-Jones and Convolutional Neural Networks can be applied to many image recognition problems, beyond faces, like recognizing handwritten text, spotting tumors in CT scans and monitoring traffic flow on roads.

Viola-Jones 和卷积神经网络都可以应用于除人脸之外的许多图像识别问题，例如识别手写文本、在 CT 扫描中发现肿瘤以及监控道路上的交通流量。