1 files changed, 93 insertions, 0 deletions
diff --git a/jni_mosaic/feature_mos/src/mosaic/AlignFeatures.h b/jni_mosaic/feature_mos/src/mosaic/AlignFeatures.h
new file mode 100644
index 000000000..19f39051d
--- /dev/null
+++ b/jni_mosaic/feature_mos/src/mosaic/AlignFeatures.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+///////////////////////////////////////////////////
+// Align.h
+// S.O. # :
+// Author(s): zkira
+// $Id: AlignFeatures.h,v 1.13 2011/06/17 13:35:47 mbansal Exp $
+
+#ifndef ALIGN_H
+#define ALIGN_H
+
+#include "dbreg/dbreg.h"
+#include <db_utilities_camera.h>
+
+#include "ImageUtils.h"
+#include "MatrixUtils.h"
+
+class Align {
+
+public:
+  // Types of alignment possible
+  static const int ALIGN_TYPE_PAN    = 1;
+
+  // Return codes
+  static const int ALIGN_RET_LOW_TEXTURE  = -2;
+  static const int ALIGN_RET_ERROR        = -1;
+  static const int ALIGN_RET_OK           = 0;
+  static const int ALIGN_RET_FEW_INLIERS  = 1;
+
+  ///// Settings for feature-based alignment
+  // Number of features to use from corner detection
+  static const int DEFAULT_NR_CORNERS=750;
+  static const double DEFAULT_MAX_DISPARITY=0.1;//0.4;
+  // Type of homography to model
+  static const int DEFAULT_MOTION_MODEL=DB_HOMOGRAPHY_TYPE_R_T;
+// static const int DEFAULT_MOTION_MODEL=DB_HOMOGRAPHY_TYPE_PROJECTIVE;
+//  static const int DEFAULT_MOTION_MODEL=DB_HOMOGRAPHY_TYPE_AFFINE;
+  static const unsigned int DEFAULT_REFERENCE_UPDATE_PERIOD=1500; //  Manual reference frame update so set this to a large number
+
+  static const int MIN_NR_REF_CORNERS = 25;
+  static const int MIN_NR_INLIERS = 10;
+
+  Align();
+  ~Align();
+
+  // Initialization of structures, etc.
+  int initialize(int width, int height, bool quarter_res, float thresh_still);
+
+  // Add a frame.  Note: The alignment computation is performed
+  // in this function
+  int addFrameRGB(ImageType image);
+  int addFrame(ImageType image);
+
+  // Obtain the TRS matrix from the last two frames
+  int getLastTRS(double trs[3][3]);
+  char* getRegProfileString();
+
+protected:
+
+  db_FrameToReferenceRegistration reg;
+
+  int frame_number;
+
+  double Hcurr[9];   // Homography from the alignment reference to the frame-t
+  double Hprev[9];   // Homography from frame-0 to the frame-(t-1)
+
+  int reference_frame_index; // Index of the reference frame from all captured frames
+  int num_frames_captured; // Total number of frames captured (different from frame_number)
+  double average_tx_per_frame; // Average pixel translation per captured frame
+
+  int width,height;
+
+  bool quarter_res;     // Whether to process at quarter resolution
+  float thresh_still;   // Translation threshold in pixels to detect still camera
+  ImageType imageGray;
+};
+
+
+#endif