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  • DriveWorks SDK Reference
    5.6.215 Release
    For Test and Development only

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    FeatureList.h
    Go to the documentation of this file.
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    30
    46#ifndef DW_IMAGEPROCESSING_FEATURE_LIST_H_
    47#define DW_IMAGEPROCESSING_FEATURE_LIST_H_
    48
    49#include <dw/core/Config.h>
    52#include <dw/core/base/Types.h>
    53#include <dw/image/Image.h>
    54
    55#ifdef __cplusplus
    56extern "C" {
    57#endif
    58
    62typedef enum dwFeature2DStatus {
    67
    72
    77
    80
    119{
    121 uint32_t* ages;
    123 uint32_t* ids;
    124 uint32_t* newToOldMap;
    126 uint32_t* featureCount;
    129 uint32_t currentTimeIdx;
    130 uint32_t maxHistory;
    131 uint32_t maxFeatures;
    133 uint8_t* data;
    134 size_t bytes;
    138
    139typedef struct dwFeatureArray
    140{
    142 uint32_t* ages;
    144 uint32_t* ids;
    145 uint32_t* newToOldMap;
    147 uint32_t* featureCount;
    150 uint32_t timeIdx;
    151 uint32_t maxFeatures;
    155
    157{
    160 uint8_t* descriptors;
    161 uint32_t* featureCount;
    164 uint32_t dimension;
    165 uint32_t maxFeatures;
    167 uint8_t* data;
    168 size_t bytes;
    173// dwFeature2DList
    190 const uint32_t maxFeatureCount,
    191 const dwMemoryType memoryType,
    192 dwContextHandle_t context);
    193
    207
    219
    235 const dwFeatureArray* srcFeatures,
    236 cudaStream_t stream);
    237
    254 const uint32_t maxFeatureCount,
    255 const uint32_t maxHistoryCapacity,
    256 const dwMemoryType memoryType,
    257 dwContextHandle_t context);
    258
    269
    281
    295 dwFeatureHistoryArray const* featureHistoryArray);
    296
    312 dwFeatureHistoryArray const* featureHistoryArray);
    313
    331 const uint32_t historyIdx,
    332 dwFeatureHistoryArray const* featureHistoryArray);
    333
    350 const dwFeatureHistoryArray* srcFeatureHistory,
    351 cudaStream_t stream);
    369dwStatus dwFeature_mergeNewToOldMap(uint32_t* d_newToOldMapC2A,
    370 const uint32_t* d_newToOldMapC2B,
    371 const uint32_t* d_newToOldMapB2A,
    372 const uint32_t* d_newToOldMapCount,
    373 const uint32_t maxFeatureCount,
    374 cudaStream_t stream);
    375
    393 dwTrivialDataType const dataType,
    394 uint32_t const dimension,
    395 uint32_t const maxFeatureCount,
    396 dwMemoryType const memoryType,
    397 dwContextHandle_t context);
    398
    409
    425 dwFeatureDescriptorArray const* srcDescriptors,
    426 cudaStream_t stream);
    427
    439 dwFeatureDescriptorArray const* srcDescriptors);
    440
    441#ifdef __cplusplus
    442}
    443#endif
    445#endif // DW_IMAGEPROCESSING_FEATURE2D_LIST_H_
    NVIDIA DriveWorks API: Core Types
    NVIDIA DriveWorks API: Core Methods
    NVIDIA DriveWorks API: Core Exports
    struct dwContextObject * dwContextHandle_t
    Context handle.
    Definition: Context.h:79
    #define DW_API_PUBLIC
    Definition: Exports.h:54
    dwStatus
    Status definition.
    Definition: Status.h:170
    float float32_t
    Specifies POD types.
    Definition: Types.h:70
    dwMemoryType
    Memory type definitions.
    Definition: Types.h:189
    dwTrivialDataType
    Specifies a type indicator of the underlying trivial data type.
    Definition: Types.h:103
    Defines a two-element single-precision floating-point vector.
    Definition: Types.h:325
    dwMemoryType memoryType
    Where feature array is located, GPU, CPU or pinned memory.
    Definition: FeatureList.h:153
    uint32_t maxHistory
    Max feature history size.
    Definition: FeatureList.h:130
    float32_t * scales
    Scale change for each feature.
    Definition: FeatureList.h:143
    float32_t * scales
    Scale change for each feature.
    Definition: FeatureList.h:122
    dwVector2f * locations
    Location of feature points.
    Definition: FeatureList.h:159
    uint32_t * validTrackedCount
    Valid tracked features from last frame.
    Definition: FeatureList.h:127
    dwMemoryType memoryType
    Where feature array is located, GPU, CPU or pinned memory.
    Definition: FeatureList.h:136
    dwFeature2DStatus * statuses
    Status of each feature.
    Definition: FeatureList.h:141
    uint32_t timeIdx
    Time index, 0 means latest, N means N frames earlier to latest.
    Definition: FeatureList.h:150
    size_t bytes
    Bytes of raw data.
    Definition: FeatureList.h:168
    uint8_t * data
    Pointer to the raw data address.
    Definition: FeatureList.h:167
    uint32_t * ages
    Age of each feature.
    Definition: FeatureList.h:121
    uint32_t * ids
    Id of each feature.
    Definition: FeatureList.h:144
    uint32_t * featureCount
    Total number of feature points.
    Definition: FeatureList.h:147
    dwVector2f * locations
    Location of feature points.
    Definition: FeatureList.h:146
    uint32_t dimension
    Descriptor dimension.
    Definition: FeatureList.h:164
    uint32_t * newToOldMap
    New to old index map, 1D array of size maxFeatures.
    Definition: FeatureList.h:145
    dwTrivialDataType dataType
    Descriptor data type dimension.
    Definition: FeatureList.h:163
    uint32_t maxFeatures
    Max number of features in one timeIdx.
    Definition: FeatureList.h:131
    uint32_t * featureCount
    Total number of feature points.
    Definition: FeatureList.h:161
    dwVector2f * locationHistory
    Location history of feature points.
    Definition: FeatureList.h:125
    uint32_t * featureCount
    Total number of feature points.
    Definition: FeatureList.h:126
    uint32_t * validTrackedCount
    Valid tracked features from last frame.
    Definition: FeatureList.h:148
    dwFeature2DStatus * statuses
    Status of each feature.
    Definition: FeatureList.h:120
    uint32_t * ids
    Id of each feature.
    Definition: FeatureList.h:123
    uint32_t * ages
    Age of each feature.
    Definition: FeatureList.h:142
    uint32_t maxFeatures
    Max number of features.
    Definition: FeatureList.h:165
    size_t bytes
    Bytes of raw data.
    Definition: FeatureList.h:134
    uint32_t currentTimeIdx
    Index that points to the latest feature records.
    Definition: FeatureList.h:129
    uint32_t * newToOldMap
    New to old index map, 1D array of size maxFeatures.
    Definition: FeatureList.h:124
    uint8_t * data
    Pointer to the raw data address.
    Definition: FeatureList.h:133
    uint8_t * descriptors
    Descriptor of feature points.
    Definition: FeatureList.h:160
    dwMemoryType memoryType
    Where feature array is located, GPU, CPU or pinned memory.
    Definition: FeatureList.h:170
    uint32_t maxFeatures
    Max number of features.
    Definition: FeatureList.h:151
    dwFeature2DStatus * statuses
    Status of each feature.
    Definition: FeatureList.h:158
    DW_API_PUBLIC dwStatus dwFeatureDescriptorArray_copyAsync(dwFeatureDescriptorArray *dstDescriptors, dwFeatureDescriptorArray const *srcDescriptors, cudaStream_t stream)
    Deep copy all contents from srcDescriptors to dstDescriptors.
    DW_API_PUBLIC dwStatus dwFeatureArray_reset(dwFeatureArray *featureArray)
    Resets the feature array.
    DW_API_PUBLIC dwStatus dwFeatureHistoryArray_destroy(dwFeatureHistoryArray featureHistoryArray)
    Destroys the featureHistoryArray and frees any memory created by dwFeatureHistoryArray_create().
    DW_API_PUBLIC dwStatus dwFeatureHistoryArray_get(dwFeatureArray *featureArray, const uint32_t historyIdx, dwFeatureHistoryArray const *featureHistoryArray)
    Get the feature snapshot(arraySize = maxFeatureCount) historyIdx-th frame earlier.
    dwFeature2DStatus
    Defines the possible status of a feature.
    Definition: FeatureList.h:62
    DW_API_PUBLIC dwStatus dwFeature_mergeNewToOldMap(uint32_t *d_newToOldMapC2A, const uint32_t *d_newToOldMapC2B, const uint32_t *d_newToOldMapB2A, const uint32_t *d_newToOldMapCount, const uint32_t maxFeatureCount, cudaStream_t stream)
    Merge newToOldMap from 2 inputs.
    DW_API_PUBLIC dwStatus dwFeatureArray_copyAsync(dwFeatureArray *dstFeatures, const dwFeatureArray *srcFeatures, cudaStream_t stream)
    Deep copy all contents from srcFeatures to dstFeatures
    DW_API_PUBLIC dwStatus dwFeatureDescriptorArray_destroy(dwFeatureDescriptorArray const *descriptorArray)
    Destroys the descriptor array and frees any memory created by dwDescriptorArray_create()
    DW_API_PUBLIC dwStatus dwFeatureHistoryArray_copyAsync(dwFeatureHistoryArray *dstFeatureHistory, const dwFeatureHistoryArray *srcFeatureHistory, cudaStream_t stream)
    Deep copy all contents from srcFeatureHistory to dstFeatureHistory
    DW_API_PUBLIC dwStatus dwFeatureDescriptorArray_create(dwFeatureDescriptorArray *descriptorArray, dwTrivialDataType const dataType, uint32_t const dimension, uint32_t const maxFeatureCount, dwMemoryType const memoryType, dwContextHandle_t context)
    Creates descriptor array.
    DW_API_PUBLIC dwStatus dwFeatureArray_destroy(dwFeatureArray featureArray)
    Destroys the featureArray and frees any memory created by dwFeatureArray_create().
    DW_API_PUBLIC dwStatus dwFeatureHistoryArray_reset(dwFeatureHistoryArray *featureHistoryArray)
    Resets the feature history array.
    DW_API_PUBLIC dwStatus dwFeatureArray_create(dwFeatureArray *featureArray, const uint32_t maxFeatureCount, const dwMemoryType memoryType, dwContextHandle_t context)
    Creates and initializes a feature array.
    DW_API_PUBLIC dwStatus dwFeatureDescriptorArray_copy(dwFeatureDescriptorArray *dstDescriptors, dwFeatureDescriptorArray const *srcDescriptors)
    Deep copy all contents from srcDescriptors to dstDescriptors.
    DW_API_PUBLIC dwStatus dwFeatureHistoryArray_create(dwFeatureHistoryArray *featureHistoryArray, const uint32_t maxFeatureCount, const uint32_t maxHistoryCapacity, const dwMemoryType memoryType, dwContextHandle_t context)
    Creates and initializes a feature history array.
    DW_API_PUBLIC dwStatus dwFeatureHistoryArray_getCurrent(dwFeatureArray *featureArray, dwFeatureHistoryArray const *featureHistoryArray)
    Get the latest feature snapshot(arraySize = maxFeatureCount) from history.
    DW_API_PUBLIC dwStatus dwFeatureHistoryArray_getPrevious(dwFeatureArray *featureArray, dwFeatureHistoryArray const *featureHistoryArray)
    Get the feature snapshot(arraySize = maxFeatureCount) 1 frame previous to current time.
    @ DW_FEATURE2D_STATUS_DETECTED
    The feature was just detected in the current frame.
    Definition: FeatureList.h:71
    @ DW_FEATURE2D_STATUS_INVALID
    A feature with this entry is garbage.
    Definition: FeatureList.h:66
    @ DW_FEATURE2D_STATUS_TRACKED
    The feature was successfully tracked in the current frame.
    Definition: FeatureList.h:76
    @ DW_FEATURE2D_STATUS_TYPE_COUNT
    Definition: FeatureList.h:78
    Holds pointers to the data exposed by a feature2d list.
    Definition: FeatureList.h:119
    NVIDIA DriveWorks API: Image Conversion and Streaming Functionality
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