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  • DriveWorks SDK Reference
    5.20.37 Release
    For Test and Development only

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    BoxTracker2D.h
    Go to the documentation of this file.
    1
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    30
    31#ifndef DW_IMAGEPROCESSING_TRACKING_BOXTRACKER2D_BOXTRACKER2D_H_
    32#define DW_IMAGEPROCESSING_TRACKING_BOXTRACKER2D_BOXTRACKER2D_H_
    33
    34// C api
    35#include <dw/core/base/Config.h>
    37#include <dw/core/base/Types.h>
    39
    56#ifdef __cplusplus
    57extern "C" {
    58#endif
    59
    61
    64typedef struct dwBoxTracker2DObject* dwBoxTracker2DHandle_t;
    65
    71typedef struct
    72{
    76 int32_t id;
    84 size_t nFeatures;
    86
    90typedef struct
    91{
    93 uint32_t maxBoxCount;
    151
    153
    167
    169
    188 int32_t imageWidth, int32_t imageHeight, dwContextHandle_t context);
    189
    204
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    255
    274
    296dwStatus dwBoxTracker2D_track(const float32_t* curFeatureLocations,
    297 const dwFeature2DStatus* curFeatureStatuses,
    298 const float32_t* preFeatureLocations, dwBoxTracker2DHandle_t obj);
    299
    320 const dwFeature2DStatus* statuses,
    321 size_t nFeatures, dwBoxTracker2DHandle_t obj);
    322
    341
    360
    377
    394
    395#ifdef __cplusplus
    396}
    397#endif
    399#endif // DW_IMAGEPROCESSING_TRACKING_BOXTRACKER2D_BOXTRACKER2D_H_
    NVIDIA DriveWorks API: Core Methods
    dwStatus
    Status definition.
    Definition: ErrorDefs.h:44
    NVIDIA DriveWorks API: Feature Array and Feature History Array
    NVIDIA DriveWorks API: Core Types
    float32_t confidence
    Confidence in tracking results.
    Definition: BoxTracker2D.h:78
    const float32_t * featureLocations
    2d feature coordinates inside the bounding box.
    Definition: BoxTracker2D.h:82
    uint32_t maxFeatureCountPerBox
    Maximum features to track for each 2D bounding box.
    Definition: BoxTracker2D.h:95
    float32_t minMatchOverlap
    Minimum amount of overlap between a tracked box and an added box such that the 2 boxes can be conside...
    Definition: BoxTracker2D.h:129
    float64_t similarityThreshold
    The threshold to define the location and size similarity of the bounding boxes.
    Definition: BoxTracker2D.h:111
    int32_t trackedFrameCount
    Total number of tracked frames.
    Definition: BoxTracker2D.h:80
    uint32_t groupThreshold
    Minimum possible number of boxes minus 1.
    Definition: BoxTracker2D.h:117
    float32_t confRateTrack
    Rate at which confidence values of tracked boxes changes from frame to frame, i.e....
    Definition: BoxTracker2D.h:140
    float32_t confThreshConfirm
    Threshold on confidence below which tracker no longer report box location.
    Definition: BoxTracker2D.h:145
    uint32_t maxBoxCount
    Maximum 2D boxes to track.
    Definition: BoxTracker2D.h:93
    dwBox2D box
    Bounding box location and size.
    Definition: BoxTracker2D.h:74
    float64_t maxBoxImageScale
    Maximum box scale in the image to track.
    Definition: BoxTracker2D.h:100
    float32_t confThreshDiscard
    Threshold on confidence below which tracker no longer track box location.
    Definition: BoxTracker2D.h:149
    float32_t confRateDetect
    Rate at which to combine confidence values of new boxes to existing tracked boxes when a new box is f...
    Definition: BoxTracker2D.h:135
    size_t nFeatures
    Total number of tracked 2D features.
    Definition: BoxTracker2D.h:84
    int32_t id
    Bounding box ID.
    Definition: BoxTracker2D.h:76
    float64_t minBoxImageScale
    Minimum box scale in the image to track.
    Definition: BoxTracker2D.h:105
    float32_t maxMatchDistance
    Maximum distance around the closest tracked box to search for a candidate matching box.
    Definition: BoxTracker2D.h:124
    DW_API_PUBLIC dwStatus dwBoxTracker2D_track(const float32_t *curFeatureLocations, const dwFeature2DStatus *curFeatureStatuses, const float32_t *preFeatureLocations, dwBoxTracker2DHandle_t obj)
    Tracks the bounding boxes.
    DW_API_PUBLIC dwStatus dwBoxTracker2D_add(const dwBox2D *boxes, size_t num, dwBoxTracker2DHandle_t obj)
    Adds bounding boxes to the tracker.
    DW_API_PUBLIC dwStatus dwBoxTracker2D_get(const dwTrackedBox2D **boxList, size_t *num, dwBoxTracker2DHandle_t obj)
    Gets tracked bounding boxes and IDs.
    DW_API_PUBLIC dwStatus dwBoxTracker2D_release(dwBoxTracker2DHandle_t obj)
    Releases the 2D bounding box tracker.
    DW_API_PUBLIC dwStatus dwBoxTracker2D_setTrackingPriority(uint32_t idx, float32_t priority, dwBoxTracker2DHandle_t obj)
    Sets the priority of a bounding box.
    struct dwBoxTracker2DObject * dwBoxTracker2DHandle_t
    Handle to a 2D object tracker.
    Definition: BoxTracker2D.h:64
    DW_API_PUBLIC dwStatus dwBoxTracker2D_updateFeatures(const float32_t *featureLocations, const dwFeature2DStatus *statuses, size_t nFeatures, dwBoxTracker2DHandle_t obj)
    Updates the feature locations of the 2D bounding boxes.
    DW_API_PUBLIC dwStatus dwBoxTracker2D_initialize(dwBoxTracker2DHandle_t *obj, const dwBoxTracker2DParams *parameters, int32_t imageWidth, int32_t imageHeight, dwContextHandle_t context)
    Initializes 2D bounding box tracker.
    DW_API_PUBLIC dwStatus dwBoxTracker2D_getTrackingPriority(float32_t *priority, uint32_t idx, dwBoxTracker2DHandle_t obj)
    Returns the priority of a bounding box.
    DW_API_PUBLIC dwStatus dwBoxTracker2D_enablePriorityTracking(bool enable, dwBoxTracker2DHandle_t obj)
    Enables priority tracking of a boundary box.
    DW_API_PUBLIC dwStatus dwBoxTracker2D_initParams(dwBoxTracker2DParams *parameters)
    Initializes 2D tracker parameters with default values.
    DW_API_PUBLIC dwStatus dwBoxTracker2D_reset(dwBoxTracker2DHandle_t obj)
    Resets the 2D bounding box tracker.
    DW_API_PUBLIC dwStatus dwBoxTracker2D_shallowReset(dwBoxTracker2DHandle_t obj)
    Performs a shallow reset on the 2D bounding box tracker.
    DW_API_PUBLIC dwStatus dwBoxTracker2D_addPreClustered(const dwTrackedBox2D *boxes, size_t num, dwBoxTracker2DHandle_t obj)
    Adds pre-clustered bounding boxes to the tracker.
    Holds 2D object-tracker parameters.
    Definition: BoxTracker2D.h:91
    Holds a tracked 2D bounding box.
    Definition: BoxTracker2D.h:72
    float float32_t
    Specifies POD types.
    Definition: BasicTypes.h:59
    double float64_t
    Definition: BasicTypes.h:60
    struct dwContextObject * dwContextHandle_t
    Context handle.
    Definition: Context.h:85
    #define DW_API_PUBLIC
    Definition: Exports.h:56
    dwFeature2DStatus
    Defines the possible status of a feature.
    Definition: FeatureList.h:62
    Defines a rectangle.
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