private void AddPanel(BoxCollider collider)
    {
        var width = collider.size.x;
        var height = collider.size.y;

        var position = collider.transform.position;

        var minX = position.x - (width / 2);
        var maxX = position.x + (width / 2);
        var minY = position.y - (height / 2);
        var maxY = position.y + (height / 2);

        var minPoint = mainCamera.WorldToScreenPoint(new Vector3(minX, minY, position.z));
        var maxPoint = mainCamera.WorldToScreenPoint(new Vector3(maxX, maxY, position.z));

        var imageWidth = (maxPoint.x - minPoint.x) * 0.5f;
        var imageHeight = (maxPoint.y - minPoint.y) * 0.5f;

        var objPoint = mainCamera.WorldToScreenPoint(position);
        var imageObj = Instantiate(imagePrefab);
        imageObj.transform.SetParent(this.transform, false);
        imageObj.transform.position = objPoint;

        var rect = imageObj.GetComponent<RectTransform>();
        rect.sizeDelta = new Vector2(imageWidth, imageHeight);
    }