Is it possible to select particular text using Google's vision API?

Question

I am designing an app where i scan the text using the camera and use that text to fetch more details. To do that i am using Google's vision API. But by default the API reads all the text that is available on the image as shown below.

As you can see from the above image the app is recognizing all the text that is available in front of the camera. But i would like to just scan "Hello World" from the camera. Is it possible to use some kind of touch event just to focus on the desired text

Please find the code used for text recognition

    private void startCameraSource() {
//Create the TextRecognizer
final TextRecognizer textRecognizer = new TextRecognizer.Builder(getApplicationContext()).build();

    if (!textRecognizer.isOperational()) {
    Log.w(TAG, "Detector dependencies not loaded yet");
} else {

    //Initialize camerasource to use high resolution and set Autofocus on.
    mCameraSource = new CameraSource.Builder(getApplicationContext(), textRecognizer)
            .setFacing(CameraSource.CAMERA_FACING_BACK)
            .setRequestedPreviewSize(1280, 1024)
            .setAutoFocusEnabled(true)
            .setRequestedFps(2.0f)
            .build();

    /**
     * Add call back to SurfaceView and check if camera permission is granted.
     * If permission is granted we can start our cameraSource and pass it to surfaceView
     */
    mCameraView.getHolder().addCallback(new SurfaceHolder.Callback() {
        @Override
        public void surfaceCreated(SurfaceHolder holder) {
            try {

                if (ActivityCompat.checkSelfPermission(getApplicationContext(),
                        Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {

                    ActivityCompat.requestPermissions(MainActivity.this,
                            new String[]{Manifest.permission.CAMERA},
                            requestPermissionID);
                    return;
                }
                mCameraSource.start(mCameraView.getHolder());
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        @Override
        public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
        }

        @Override
        public void surfaceDestroyed(SurfaceHolder holder) {
            mCameraSource.stop();
        }
    });

    //Set the TextRecognizer's Processor.
    textRecognizer.setProcessor(new Detector.Processor<TextBlock>() {
        @Override
        public void release() {
        }

        /**
         * Detect all the text from camera using TextBlock and the values into a stringBuilder
         * which will then be set to the textView.
         * */
        @Override
        public void receiveDetections(Detector.Detections<TextBlock> detections) {
            final SparseArray<TextBlock> items = detections.getDetectedItems();
            if (items.size() != 0 ){

                mTextView.post(new Runnable() {
                    @Override
                    public void run() {
                        StringBuilder stringBuilder = new StringBuilder();
                        for(int i=0;i<items.size();i++){
                            TextBlock item = items.valueAt(i);
                            stringBuilder.append(item.getValue());
                            stringBuilder.append("\n");
                        }
                        mTextView.setText(stringBuilder.toString());
                    }
                });
            }
        }
    });
}
}