How can I calculate whether an UI element is inside my camera view?

I'm using the following code to get the Text UI coordinates. How can I check this against the camera view?

   Rect textUI;
     Vector3[] points = new Vector3[4];
 
     public Rect GetScreenRect(Vector3[] corners)
     {
         RectTransform rectTransform = (RectTransform)transform;
         rectTransform.GetWorldCorners(corners);
 
         float x$$anonymous$$in = float.PositiveInfinity, x$$anonymous$$ax = float.NegativeInfinity, y$$anonymous$$in = float.PositiveInfinity, y$$anonymous$$ax = float.NegativeInfinity;
         for (int i = 0; i < 4; ++i)
         {
            
             Vector3 screenCoord = RectTransformUtility.WorldToScreenPoint(Camera.main, corners[i]);
             if (screenCoord.x < x$$anonymous$$in) x$$anonymous$$in = screenCoord.x;
             if (screenCoord.x > x$$anonymous$$ax) x$$anonymous$$ax = screenCoord.x;
             if (screenCoord.y < y$$anonymous$$in) y$$anonymous$$in = screenCoord.y;
             if (screenCoord.y > y$$anonymous$$ax) y$$anonymous$$ax = screenCoord.y;
             corners[i] = screenCoord;
         }
         Rect result = new Rect(x$$anonymous$$in, y$$anonymous$$in, x$$anonymous$$ax - x$$anonymous$$in, y$$anonymous$$ax - y$$anonymous$$in);
         return result;
     }
     // Use this for initialization
     void Start () {
     
     }
     
     // Update is called once per frame
     void Update () {
         textUI = GetScreenRect(points);
     
         Debug.Log(textUI);
 
 
         
    }
 }

Added the following debug code to my Update, and noticed that it seems to be calculating the corners of the text UI element properly.

 Debug.Log(points[0]);
         Debug.Log(points[1]);
         Debug.Log(points[2]);
         Debug.Log(points[3]);