Edited translation: "Last year's version has an emotion interface, why did not the latest R5 version have the emotion API?"
The emotion sensing component was not owned by Intel. It was created by a company called Emotient who have now been purchased by Apple. When Apple buys companies, they often stop providing their product to companies that are not Apple. A reason has not been gven for the Emotient emotion component being removed from RealSense but the Apple purchase is likely why it happened.
There are other ways in which emotion can be sensed. In the Unity game engine for example, you can animate objects such as the eyebrows with the face and read whether it is a happy or angry emotion by the angle of the object as it is rotated by the human's face. A downward angle might indicate anger (a downward eyebrow) or an upward angled object might indicate happiness (an upward flexed eyebrow).
Also, the RealSense camera can use infra red to read the heart beat rate of the user with a feature called Pulse Estimation.
CHINESE
情感感测组件不是由英特尔拥有。它是由一个叫Emotient公司谁现在已经被苹果购买的创建。当苹果收购的公司，他们经常停止提供他们的产品不属于苹果公司。一个原因尚未给出了Emotient情感成分从RealSense被删除，但苹果收购可能为什么会发生。
有在其中的情感可以感测的其他方式。在Unity游戏引擎，例如，可以制作动画，如与脸部眉毛对象和读无论是通过物体的角度高兴还是生气的情绪，因为它是由人类的脸旋转。向下的角度可能表明怒气（向下眉）或向上倾斜的对象可能预示幸福（向上弯曲的眉毛）。
另外，RealSense相机可以使用红外线读取具有称为脉冲估算特征的用户的心脏的跳动速率。
