Vuforia云识别

最新推荐文章于 2023-05-16 13:46:11 发布

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最新推荐文章于 2023-05-16 13:46:11 发布

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分类专栏： vuforia

本文链接：https://blog.youkuaiyun.com/qq_35669619/article/details/77053625

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本文介绍了如何在Unity中配置Vuforia云识别功能，包括设置ARCamera的App License Key，将ImageTarget的Type设为Cloud Reco，添加CloudRecognition并输入Access Key和Secret Key，以及创建并挂载SimpleCloudHandler脚本来处理云识别事件。

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1.拖入ARCamera预制件,填写App License Key；

拖入ImageTarget预制件，ImageTargetBehaviour组件的Type改为Cloud Reco；

拖入CloudRecognition预制件，填写创建云识别库时生成的Client端的Access Key和Secert Key；

2.新建SimpleCloudHandler.cs挂在CloudRecognition预制件上。代码如下：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Vuforia;

public class SimpleCloudHandler1 : MonoBehaviour, ICloudRecoEventHandler
{
    public ImageTargetBehaviour ImageTargetTemplate;
    private CloudRecoBehaviour mCloudRecoBehaviour;
    private bool mIsScanning = false;
    private string mTargetMetadata = "";
    // Use this for initialization
    void Start()
    {
        // register this event handler at the cloud reco behaviour
        mCloudRecoBehaviour = GetComponent<CloudRecoBehaviour>();

        if (mCloudRecoBehaviour)
        {
            mCloudRecoBehaviour.RegisterEventHandler(this);
        }
    }
    public void OnInitialized()
    {
        Debug.Log("Cloud Reco initialized");
    }
    public void OnInitError(TargetFinder.InitState initError)
    {
        Debug.Log("Cloud Reco init error " + initError.ToString());
    }
    public void OnUpdateError(TargetFinder.UpdateState updateError)
    {
        Debug.Log("Cloud Reco update error " + updateError.ToString());
    }
    public void OnStateChanged(bool scanning)
    {
        mIsScanning = scanning;
        if (scanning)
        {
            // clear all known trackables
            //ImageTracker tracker = TrackerManager.Instance.GetTracker<ImageTracker>();
            //tracker.TargetFinder.ClearTrackables(false);
        }
    }
    // Here we handle a cloud target recognition event
    public void OnNewSearchResult(TargetFinder.TargetSearchResult targetSearchResult)
    {
        // do something with the target metadata
        mTargetMetadata = targetSearchResult.MetaData;
        // stop the target finder (i.e. stop scanning the cloud)
        mCloudRecoBehaviour.CloudRecoEnabled = false;
        // Build augmentation based on target
        if (ImageTargetTemplate)
        {
            // enable the new result with the same ImageTargetBehaviour:
            ObjectTracker tracker = TrackerManager.Instance.GetTracker<ObjectTracker>();
            ImageTargetBehaviour imageTargetBehaviour =
            (ImageTargetBehaviour)tracker.TargetFinder.EnableTracking(
            targetSearchResult, ImageTargetTemplate.gameObject);
        }
    }
    void OnGUI()
    {
        // Display current 'scanning' status
        GUI.Box(new Rect(100, 100, 200, 50), mIsScanning ? "Scanning" : "Not scanning");
        // Display metadata of latest detected cloud-target
        //GUI.Box(new Rect(100, 200, 200, 50), "Metadata: " + mTargetMetadata);
        // If not scanning, show button
        // so that user can restart cloud scanning
        if (!mIsScanning)
        {
            if (GUI.Button(new Rect(100, 300, 200, 50), "Restart Scanning"))
            {
                // Restart TargetFinder
                mCloudRecoBehaviour.CloudRecoEnabled = true;
            }
        }
    }
}

ps:如果识别不出来，问题可能是网络不好。