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      1 /*
      2  * surview_fisheye_dewarp.h - dewarp fisheye image for surround view
      3  *
      4  *  Copyright (c) 2016-2017 Intel Corporation
      5  *
      6  * Licensed under the Apache License, Version 2.0 (the "License");
      7  * you may not use this file except in compliance with the License.
      8  * You may obtain a copy of the License at
      9  *
     10  *   http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  * Unless required by applicable law or agreed to in writing, software
     13  * distributed under the License is distributed on an "AS IS" BASIS,
     14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15  * See the License for the specific language governing permissions and
     16  * limitations under the License.
     17  *
     18  * Author: Junkai Wu <junkai.wu (at) intel.com>
     19  */
     20 
     21 #ifndef XCAM_SURVIEW_FISHEYE_DEWARP_H
     22 #define XCAM_SURVIEW_FISHEYE_DEWARP_H
     23 
     24 #include <xcam_std.h>
     25 #include <vec_mat.h>
     26 #include <interface/data_types.h>
     27 
     28 namespace XCam {
     29 
     30 class SurViewFisheyeDewarp
     31 {
     32 
     33 public:
     34     typedef std::vector<PointFloat2> MapTable;
     35 
     36     explicit SurViewFisheyeDewarp ();
     37     virtual ~SurViewFisheyeDewarp ();
     38 
     39     void fisheye_dewarp(MapTable &map_table, uint32_t table_w, uint32_t table_h, uint32_t image_w, uint32_t image_h, const BowlDataConfig &bowl_config);
     40 
     41     void set_intrinsic_param(const IntrinsicParameter &intrinsic_param);
     42     void set_extrinsic_param(const ExtrinsicParameter &extrinsic_param);
     43 
     44     IntrinsicParameter get_intrinsic_param();
     45     ExtrinsicParameter get_extrinsic_param();
     46 
     47 private:
     48     XCAM_DEAD_COPY (SurViewFisheyeDewarp);
     49 
     50     virtual void cal_image_coord (const PointFloat3 &cam_coord, PointFloat2 &image_coord);
     51 
     52     void cal_cam_world_coord (const PointFloat3 &world_coord, PointFloat3 &cam_world_coord);
     53     void world_coord2cam (const PointFloat3 &cam_world_coord, PointFloat3 &cam_coord);
     54 
     55     Mat4f generate_rotation_matrix(float roll, float pitch, float yaw);
     56 
     57 private:
     58     IntrinsicParameter _intrinsic_param;
     59     ExtrinsicParameter _extrinsic_param;
     60 };
     61 
     62 class PolyFisheyeDewarp : public SurViewFisheyeDewarp
     63 {
     64 
     65 public:
     66     explicit PolyFisheyeDewarp ();
     67 
     68 private:
     69     void cal_image_coord (const PointFloat3 &cam_coord, PointFloat2 &image_coord);
     70 
     71 };
     72 
     73 } // Adopt Scaramuzza's approach to calculate image coordinates from camera coordinates
     74 
     75 #endif // XCAM_SURVIEW_FISHEYE_DEWARP_H
     76