Question

HTC one M8使用双摄像头来实现3D尺寸加效果。这种技术的名称是什么？

这是一个演示： Video

Answer 1

使用深度图进行图像处理，有关详细信息，请参阅： https://www.htcdev.com/devcenter/opensense-sdk/htc-dual-lens-api

无需逆向工程 - DimensionPlus效果只是2D加效果的实现（如果您需要名称），如下所述：https://en.wikipedia.org/wiki/2D-plus-depth

此效果使用照片中包含的深度贴图来创建标准几何图形，SDK使用该几何图形来使用陀螺仪可视化效果（或者您可以编程触摸导航）。

Answer 2

3D Dimension Plus效果是使用HTC提供的Dual Lens SDK实现的：

https://www.htcdev.com/devcenter/opensense-sdk/htc-dual-lens-api/htc-dual-lens-sdk-installation/

如果您下载SDK，它将包含显示如何实现所需效果的示例。

以下是SDK示例中的代码示例，由HTC提供：

public class DimenstionPlusActivity extends Activity {
    private DimensionPlusView dimensionPlusView;

    final String filename = "dimensionPlusSample.jpg"; // copy to root of sdcard

    private File root = Environment.getExternalStorageDirectory();
    final String filepath = root+"/"+filename;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        dimensionPlusView = (DimensionPlusView) findViewById(R.id.dimensionPlusView);
        try {
            dimensionPlusView.loadDimensionPlusFile(filepath);
        } catch (IOException e) {
            if(e.getMessage().contains("READFILE_ERROR")){
                Toast.makeText(getBaseContext(),filename+" not found", Toast.LENGTH_LONG).show();
            } else {
                Toast.makeText(getBaseContext(),filename+" not supported", Toast.LENGTH_LONG).show();
            }
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
//        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    protected void onResume() {
        super.onResume();
        dimensionPlusView.onResume();
        SensorManager sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
        sensorManager.registerListener(mSenserEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_GYROSCOPE),
                SensorManager.SENSOR_DELAY_FASTEST);
    }

    @Override
    protected void onPause() {
        super.onPause();
        dimensionPlusView.onPause();
        SensorManager sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
        sensorManager.unregisterListener(mSenserEventListener);
    }

    @Override
    protected void onDestroy () {
        super.onDestroy();
        dimensionPlusView.release();
    }

    private SensorEventListener mSenserEventListener = new SensorEventListener() {
        @Override
        public void onSensorChanged(SensorEvent event) {
            // gyro event
            float gravity1 = event.values[0];
            float gravity2 = event.values[1];

            int orientation = ((WindowManager) DimenstionPlusActivity.this.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay()
                    .getRotation();
            switch (orientation) {
            case Surface.ROTATION_0:
                dimensionPlusView.gyro(-gravity2, gravity1);
                break;
            case Surface.ROTATION_90:
                dimensionPlusView.gyro(-gravity1, -gravity2);
                break;
            case Surface.ROTATION_180:
                dimensionPlusView.gyro(gravity2, -gravity1);
                break;
            case Surface.ROTATION_270:
                dimensionPlusView.gyro(gravity1, gravity2);
                break;
            default:
                dimensionPlusView.gyro(-gravity2, gravity1);
                break;
            }

            return;
        }

        @Override
        public void onAccuracyChanged(Sensor sensor, int accuracy) {
        }
    };
}

3D效果背后的技术名称，如HTC one dimension plus

2 个答案: