TransformEstimator.h

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#ifndef NV_VPI_ALGORITHMS_TRANSFORM_ESTIMATOR_H
#define NV_VPI_ALGORITHMS_TRANSFORM_ESTIMATOR_H
 
#include "../AlgoFlags.h"
#include "../Export.h"
#include "../Status.h"
#include "../Types.h"
 
#include <stdint.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
VPI_PUBLIC VPIStatus vpiCreateTransformEstimator(uint64_t backends, int32_t maxKeypoints, VPIPayload *payload);
 
typedef struct
{
    float minRotation, maxRotation;
    /* @} */
 
    float minXScale, maxXScale;
    float minYScale, maxYScale;
    float minXTranslation, maxXTranslation;
    float minYTranslation, maxYTranslation;
    float minShear, maxShear;
    int8_t isAffine;
 
    int8_t isIsotropicScale;
} VPIConstrainedHomography2DConfig;
 
typedef enum
{
    VPI_XFORM_CONSTRAINED_HOMOGRAPHY_2D
} VPITransformType;
 
typedef union
{
    VPIConstrainedHomography2DConfig constrainedHomography2D;
} VPITransformConfig;
 
typedef enum
{
    VPI_XFORM_ESTIM_METHOD_REGULAR,
    VPI_XFORM_ESTIM_METHOD_RANSAC,
} VPITransfomEstimationMethod;
 
typedef struct
{
    VPITransfomEstimationMethod method;
 
    int32_t solverMaxIterations;
 
    int32_t ransacMaxIterations;
    float ransacReprojErrorTolerance;
    float ransacConfidenceLevel;
    int32_t ransacSeed;
    int32_t maxRefinementIterations;
 
    VPITransformType xftype;
    VPITransformConfig xfcfg;
} VPITransformEstimatorParams;
 
VPI_PUBLIC VPIStatus vpiInitTransformEstimatorParams(VPITransformType type, VPITransformEstimatorParams *params);
 
VPI_PUBLIC VPIStatus vpiSubmitTransformEstimator(VPIStream stream, uint64_t backend, VPIPayload payload,
                                                 VPIArray srcKeypoints, VPIArray tgtKeypoints, VPIArray matches,
                                                 VPIArray outTransform, VPIArray outInliers,
                                                 const VPITransformEstimatorParams *params);
 
#ifdef __cplusplus
}
#endif
 
#endif /* NV_VPI_ALGORITHMS_TRANSFORM_ESTIMATOR_H */