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Remote gaze detection
2017/4/3 16:36:00   中国安防行业网      关键字:Remote gaze detection      浏览量:

  Remote gaze detection

  The Japanese company NEC Corporation reports developing "remote gaze detection technology". It enables real-time detection of the direction an individual is looking, even when using cameras from remote locations.

  Conventional technologies estimate an individual's line-of-sight using specialised devices equipped with infrared lights and cameras that detect light as it is reflected from an individual's eye.

  This new technology, developed as part of NEC's artificial intelligence (AI) technologies, NEC the WISE, uses face feature point detection, the core of NEC's face recognition, to identify characteristics in and around the eye, such as the pupil and the corners of the eye, from images taken with common cameras, including web, surveillance, tablet and smartphone cameras, without the need for specialised equipment, the developers say. These images and technology enable detection of an individual's line-of-sight, with a measurement error of less than 5 degrees from the left, right, top and bottom.

  Computations of its "feature value extraction technology" enable it to simultaneously detect the line-of-sight of multiple people, without compromising the accuracy of its results, it is claimed. As a result, even when multiple persons appear in a camera, it is possible to simultaneously detect the line-of-sight of each person, according to the firm.

  远程视线检测

  日本的NEC Corporation公司发布了其"远程视线检测技术"。它可以实时检测目标正在注视的方向,即使是在使用远程摄像机的情况下。

  常规技术使用配备有红外线灯和相机的专门设备从个人的眼睛反射出光来判断目标人物的视线。

  这项新技术作为NEC人工智能(AI)技术的一部分,NEC 的 WISE,使用面部特征检测,NEC的核心是面部识别,以确定眼部和周围的特征,例如从普通摄相机(包括网络、监控摄像机,平板电脑和智能手机)拍摄的瞳孔和眼角的图像,而不需要什么专业的设备。这些图像和技术可以检测人的视线,上下左右的误差小于5度。

  其"特征值提取技术"的运算使其能够同时检测多个人物目标的视线,而同时又不会影响结果的准确性。因此,即使多人出现在相机中,它也可以同时检测每个人的视线。