UnityとRealSenseで表情の認識

笑うと回る箱(動画では何も伝わらない)

笑うと回る箱(動画では何も伝わらない) pic.twitter.com/mNNUtyXekB

— 琴葉 葵（偽） (@Hv2RMjHzDyqXVIr) 2017年6月11日

Version
Unity:5.6.1f1 Personal
RealSenseSDK:2016 R3
Device:SR300

動かし方
空のシーンを作ってカメラに下のコードをコピペして作ったスクリプトをアタッチするだけです。
※箱の座標は0,0,0

using System.Collections.Generic;
using UnityEngine;
using Intel.RealSense;
using Intel.RealSense.Face;

public class FaceExpressions : MonoBehaviour
{
    SenseManager SenseM;
    FaceModule FaceM;
    FaceConfiguration FaceC;
    FaceData FaceD;

    Dictionary<FaceExpression, FaceExpressionResult> Expression;

    GameObject Obj;

    void Start()
    {
        SenseM = SenseManager.CreateInstance();

        FaceM = FaceModule.Activate(SenseM);
        FaceM.FrameProcessed += FaceM_FrameProcessed;

        FaceC = FaceM.CreateActiveConfiguration();
        FaceC.Expressions.EnableAllExpressions();
        FaceC.Expressions.Properties.Enabled = true;
        FaceC.ApplyChanges();

        FaceD = FaceM.CreateOutput();

        SenseM.Init();
        SenseM.StreamFrames(false);

        Obj = GameObject.CreatePrimitive(PrimitiveType.Cube);
        Obj.transform.localScale = new Vector3(1, 1, 1);
    }

    void FaceM_FrameProcessed(object sender, FrameProcessedEventArgs args)
    {
        FaceD.Update();
        var face = FaceD.QueryFaceByIndex(0);
        if (face != null)
        {
            if (face.Expressions != null)
            {
                Expression = face.Expressions.ExpressionResults;
            }
        }
    }

    void Update()
    {
        float z = 0;

        if (Expression != null)
        {
            z = Expression[FaceExpression.EXPRESSION_SMILE].intensity;
        }

        Obj.transform.Rotate(new Vector3(0, 0, z));
    }
}

参考
拾える情報

namespace Intel.RealSense.Face
{
    public enum FaceExpression
    {
        EXPRESSION_BROW_RAISER_LEFT = 0,
        EXPRESSION_BROW_RAISER_RIGHT = 1,
        EXPRESSION_BROW_LOWERER_LEFT = 2,
        EXPRESSION_BROW_LOWERER_RIGHT = 3,
        EXPRESSION_SMILE = 4,
        EXPRESSION_KISS = 5,
        EXPRESSION_MOUTH_OPEN = 6,
        EXPRESSION_EYES_CLOSED_LEFT = 7,
        EXPRESSION_EYES_CLOSED_RIGHT = 8,
        EXPRESSION_HEAD_TURN_LEFT = 9,
        EXPRESSION_HEAD_TURN_RIGHT = 10,
        EXPRESSION_HEAD_UP = 11,
        EXPRESSION_HEAD_DOWN = 12,
        EXPRESSION_HEAD_TILT_LEFT = 13,
        EXPRESSION_HEAD_TILT_RIGHT = 14,
        EXPRESSION_EYES_TURN_LEFT = 15,
        EXPRESSION_EYES_TURN_RIGHT = 16,
        EXPRESSION_EYES_UP = 17,
        EXPRESSION_EYES_DOWN = 18,
        EXPRESSION_TONGUE_OUT = 19,
        EXPRESSION_PUFF_RIGHT = 20,
        EXPRESSION_PUFF_LEFT = 21
    }
}