diff --git a/Assets/Scripts/UI/Component/CaptureManagerBase.cs b/Assets/Scripts/UI/Component/CaptureManagerBase.cs
index 59b73c3..e82917b 100644
--- a/Assets/Scripts/UI/Component/CaptureManagerBase.cs
+++ b/Assets/Scripts/UI/Component/CaptureManagerBase.cs
@@ -55,6 +55,8 @@ namespace Yoga
 
             if (YogaManager.Instance.CurrentEstimator.Check(ref img))//检测模型，将错误信息打印在图片上
             {
+                if (YogaManager.Instance.RgbaMat != null)
+                    YogaManager.Instance.RgbaMat.Dispose();
                 YogaManager.Instance.RgbaMat = img.clone();
 
                 //打印
diff --git a/Assets/Scripts/UI/Component/MotionUSBCameraCaptureManager.cs b/Assets/Scripts/UI/Component/MotionUSBCameraCaptureManager.cs
index fd0471a..9292459 100644
--- a/Assets/Scripts/UI/Component/MotionUSBCameraCaptureManager.cs
+++ b/Assets/Scripts/UI/Component/MotionUSBCameraCaptureManager.cs
@@ -3,6 +3,7 @@ using OpenCVForUnity.UnityUtils;
 using Serenegiant.UVC;
 
 using System;
+using System.Collections;
 using UnityEngine;
 
 
@@ -10,10 +11,29 @@ namespace Yoga
 {
     public class MotionUSBCameraCaptureManager : CaptureManagerBase, IUVCDrawer
     {
+        private Material _flipImg;
+        private void Awake()
+        {
+            _flipImg = Resources.Load<Material>("Materials/Unlit_FlipHorizontal");
+            InvokeRepeating("GCCollection", 0, 1f);
+        }
+
+        private void GCCollection()
+        {
+            StartCoroutine(CleanUp());
+        }
+        private IEnumerator CleanUp()
+        {
+            GC.Collect();
+            yield return Resources.UnloadUnusedAssets();
+            GC.Collect();
+        }
+
         protected override Mat GetMat()
         {
             Mat img = null;
 
+            LogPrint.Log("USB Camera!", PrintLevel.Normal);
             if (UVCManager.Instance != null &&
                 UVCManager.Instance.GetAttachedDevices() != null && UVCManager.Instance.GetAttachedDevices().Count > 0)
             {
@@ -21,20 +41,19 @@ namespace Yoga
                 for (int i = 0; i < devices.Count; i++)
                 {
                     UVCManager.CameraInfo device = devices[i];
-                    LogPrint.Log($"id:{i},pid:{device.Pid},vid:{device.Vid},deviceName:{device.DeviceName}");
+                    LogPrint.Log($"id:{i},pid:{device.Pid},vid:{device.Vid},deviceName:{device.DeviceName}", PrintLevel.Normal);
                 }
-                Texture picCaptured = null;
-                var index = PlayerPrefs.GetInt("USBCameraIndex");
-                if (index >= devices.Count) //数量超出时候改为默认第一个
-                    index = 0;
+                //var index = PlayerPrefs.GetInt("USBCameraIndex");
+                //if (index >= devices.Count || index < 0) //数量超出时候改为默认第一个
+                //    index = 0;
 
-                picCaptured  = devices[index].previewTexture;
-                if (picCaptured == null)
+                var device1 = devices.Find(d => d.DeviceName.Equals("/dev/bus/usb/002/008"));
+
+                if (device1.previewTexture == null)
                     throw new Exception("No preview Texture found!");
 
-                Texture2D tmpTex = new Texture2D(UVCManager.Instance.DefaultWidth, UVCManager.Instance.DefaultHeight);
-                Utils.textureToTexture2D(picCaptured, tmpTex);
-                tmpTex = PictureUtility.HorizontalFlipTexture(tmpTex);//picCaptured texture水平反转
+                var tmpTex = new Texture2D(UVCManager.Instance.DefaultWidth, UVCManager.Instance.DefaultHeight);
+                textureToFlipTexture2D(device1.previewTexture, tmpTex);
                 img = new Mat(UVCManager.Instance.DefaultHeight, UVCManager.Instance.DefaultWidth, CvType.CV_8UC3);
                 Utils.texture2DToMat(tmpTex, img);
             }
@@ -42,12 +61,34 @@ namespace Yoga
             return img;
         }
 
+        private void textureToFlipTexture2D(Texture texture, Texture2D texture2D)
+        {
+            if (texture == null)
+                throw new ArgumentNullException("texture");
+
+            if (texture2D == null)
+                throw new ArgumentNullException("texture2D");
+
+            if (texture.width != texture2D.width || texture.height != texture2D.height)
+                throw new ArgumentException("texture and texture2D need to be the same size.");
+
+            RenderTexture prevRT = RenderTexture.active;
+
+            RenderTexture tempRT = RenderTexture.GetTemporary(texture.width, texture.height, 0, RenderTextureFormat.ARGB32);
+            Graphics.Blit(texture, tempRT, _flipImg);
+
+            RenderTexture.active = tempRT;
+            texture2D.ReadPixels(new UnityEngine.Rect(0f, 0f, texture.width, texture.height), 0, 0, false);
+            texture2D.Apply(false, false);
+            RenderTexture.ReleaseTemporary(tempRT);
+
+            RenderTexture.active = prevRT;
+        }
+
         protected override void MatInitial()
         {
             if (UVCManager.Instance == null)
                 throw new Exception("没有连接USB摄像头");
-
-            Debug.LogWarning("USB Camera!");
         }
 
         #region UVC