Detailed Description

Defines RoadMarkClassifier module for roadmark classification.

Defines RoadMarkClassifier module for road mark classification.

Note: SW Release Applicability: These APIs are available in NVIDIA DRIVE Software releases.

Data Structures
struct	dwRoadMarkClassifierParams

Typedefs
typedef struct dwRoadMarkClassifierObject *	dwRoadMarkClassifierHandle_t
	Handle to a RoadMark classifier. More...

Enumerations
enum	dwRoadMarkClassifierSmoothingType { DW_ROADMARK_CLASSIFIER_SMOOTHING_TYPE_NONE = 0, DW_ROADMARK_CLASSIFIER_SMOOTHING_TYPE_CONFIDENCE_VOTING = 1 }

enum	dwRoadMarkClassifierStage { DW_ROADMARK_CLASSIFIER_STAGE_GPU_ASYNC_PREPROCESSING = 0, DW_ROADMARK_CLASSIFIER_STAGE_GPU_ASYNC_INFERENCE, DW_ROADMARK_CLASSIFIER_STAGE_GPU_ASYNC_INTERPRETATION, DW_ROADMARK_CLASSIFIER_STAGE_CPU_SYNC_POSTPROCESSING }
	The GPU processing stages of the RoadMarkClassifier. More...

Functions
DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_bindInputImageArray (const dwImageCUDA const images, uint32_t imageCount, dwRoadMarkClassifierHandle_t obj)
	Binds a list of images that are to be processed and fed to the classifier. More...

DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_bindInputRoadmarkDetection (const dwRoadmarkDetection *roadmarks, dwRoadMarkClassifierHandle_t obj)
	Binds the output roadmarks to the classifier. More...

DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_bindOutput (dwRoadmarkDetection *roadmarks, dwRoadMarkClassifierHandle_t obj)
	Binds the output of road mark classifier. More...

DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_getCUDAStream (cudaStream_t *stream, dwRoadMarkClassifierHandle_t obj)
	Gets the CUDA stream used. More...

DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_getThreshold (float32_t *threshold, dwRoadMarkClassifierHandle_t obj)
	Gets the classification threshold used. More...

DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_initDefaultParams (dwRoadMarkClassifierParams *classifierParams)
	Initializes default params values for dwRoadMarkClassifier. More...

DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_initializeFromRoadMarkNet (dwRoadMarkClassifierHandle_t obj, dwRoadMarkNetHandle_t roadMarkNet, const dwRoadMarkClassifierParams classifierParams, dwContextHandle_t ctx)
	Initializes RoadMarkClassifier module with a RoadMarkNet DNN inference module. More...

DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_process (dwRoadMarkClassifierStage stage, dwRoadMarkClassifierHandle_t obj)
	Perform road mark classifier GPU stages. More...

DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_release (dwRoadMarkClassifierHandle_t obj)
	Releases the RoadMarkClassifier module. More...

DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_reset (dwRoadMarkClassifierHandle_t obj)
	Resets RoadMarkClassifier. More...

DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_setCUDAStream (cudaStream_t stream, dwRoadMarkClassifierHandle_t obj)
	Sets the CUDA stream to be used. More...

DW_API_PUBLIC dwStatus	dwRoadMarkClassifier_setThreshold (float32_t threshold, dwRoadMarkClassifierHandle_t obj)
	Sets the classification threshold to be used. More...

Data Structure Documentation

◆ dwRoadMarkClassifierParams

struct dwRoadMarkClassifierParams

Data Fields
dwRoadMarkClassifierSmoothingType	smoothingType

Typedef Documentation

◆ dwRoadMarkClassifierHandle_t

typedef struct dwRoadMarkClassifierObject* dwRoadMarkClassifierHandle_t

Handle to a RoadMark classifier.

Definition at line 78 of file RoadMarkClassifier.h.

Enumeration Type Documentation

◆ dwRoadMarkClassifierSmoothingType

enum dwRoadMarkClassifierSmoothingType

Enumerator
DW_ROADMARK_CLASSIFIER_SMOOTHING_TYPE_NONE
DW_ROADMARK_CLASSIFIER_SMOOTHING_TYPE_CONFIDENCE_VOTING

Definition at line 63 of file RoadMarkClassifier.h.

◆ dwRoadMarkClassifierStage

enum dwRoadMarkClassifierStage

The GPU processing stages of the RoadMarkClassifier.

Enumerator
DW_ROADMARK_CLASSIFIER_STAGE_GPU_ASYNC_PREPROCESSING	Input images are prepared by cropping and resizing and other transformations set in dataConditionerParams at initialization time in order to have the right properties required by the DNN. If the given DNN model expects batched input, the given images are divided into batches, where each batch has the expected batch size.
DW_ROADMARK_CLASSIFIER_STAGE_GPU_ASYNC_INFERENCE	DNN inference is run on the prepared images / batches asynchronously on the GPU.
DW_ROADMARK_CLASSIFIER_STAGE_GPU_ASYNC_INTERPRETATION	Inference outputs are copied from the device to the host.
DW_ROADMARK_CLASSIFIER_STAGE_CPU_SYNC_POSTPROCESSING	The inference output is interpreted to get the list of classifiedbjects.

Definition at line 53 of file RoadMarkClassifier_processPipeline.h.

Function Documentation

◆ dwRoadMarkClassifier_bindInputImageArray()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_bindInputImageArray	(	const dwImageCUDA const	images,
		uint32_t	imageCount,
		dwRoadMarkClassifierHandle_t	obj
	)

Binds a list of images that are to be processed and fed to the classifier.

Parameters

[in]	images	Array storing pointers to images.
[in]	imageCount	Number of images provided in the array.
[in]	obj	Specifies the RoadMarkClassifier handle.

Returns: DW_SUCCESS, DW_INVALID_HANDLE, DW_BAD_CAST, DW_INVALID_ARGUMENT

Note: Currently, numImages = 1 is only supported.

◆ dwRoadMarkClassifier_bindInputRoadmarkDetection()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_bindInputRoadmarkDetection	(	const dwRoadmarkDetection *	roadmarks,
		dwRoadMarkClassifierHandle_t	obj
	)

Binds the output roadmarks to the classifier.

Parameters

[in]	roadmarks	Pointer to detected landmarks for the given frames.
[in]	obj	Specifies the RoadMarkClassifier handle.

Returns: DW_SUCCESS, DW_INVALID_HANDLE, DW_BAD_CAST, DW_INVALID_ARGUMENT

◆ dwRoadMarkClassifier_bindOutput()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_bindOutput	(	dwRoadmarkDetection *	roadmarks,
		dwRoadMarkClassifierHandle_t	obj
	)

Binds the output of road mark classifier.

Parameters

[in,out]	roadmarks	Pointer to road mark classifier output.
[in]	obj	Specifies the RoadMarkClassifier handle.

Returns: DW_SUCCESS, DW_INVALID_HANDLE, DW_BAD_CAST, DW_INVALID_ARGUMENT

◆ dwRoadMarkClassifier_getCUDAStream()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_getCUDAStream	(	cudaStream_t *	stream,
		dwRoadMarkClassifierHandle_t	obj
	)

Gets the CUDA stream used.

Parameters

[out]	stream	The CUDA stream used.
[in]	obj	A pointer to the RoadMarkClassifier handle.

Returns: DW_INVALID_ARGUMENT, DW_SUCCESS

◆ dwRoadMarkClassifier_getThreshold()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_getThreshold	(	float32_t *	threshold,
		dwRoadMarkClassifierHandle_t	obj
	)

Gets the classification threshold used.

Parameters

[out]	threshold	The classification threshold used.
[in]	obj	A pointer to the RoadMarkClassifier handle.

Returns: DW_INVALID_ARGUMENT, DW_SUCCESS

◆ dwRoadMarkClassifier_initDefaultParams()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_initDefaultParams ( dwRoadMarkClassifierParams * classifierParams )

Initializes default params values for dwRoadMarkClassifier.

Parameters

[out] classifierParams RoadMarkClassifier parameters.

Returns: DW_SUCCESS, DW_INVALID_ARGUMENT

◆ dwRoadMarkClassifier_initializeFromRoadMarkNet()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_initializeFromRoadMarkNet	(	dwRoadMarkClassifierHandle_t *	obj,
		dwRoadMarkNetHandle_t	roadMarkNet,
		const dwRoadMarkClassifierParams *	classifierParams,
		dwContextHandle_t	ctx
	)

Initializes RoadMarkClassifier module with a RoadMarkNet DNN inference module.

Parameters

[out]	obj	A pointer to RoadMarkClassifier handle that is initialized from parameters.
[in]	roadMarkNet	Specifies the handle to the dnn module which is initialized with classifier network.
[in]	classifierParams	Provides parameters for initializing the classifier.
[in]	ctx	Specifies the handle to the context.

Returns: DW_SUCCESS, DW_INVALID_HANDLE, DW_BAD_CAST, DW_INVALID_ARGUMENT

◆ dwRoadMarkClassifier_process()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_process	(	dwRoadMarkClassifierStage	stage,
		dwRoadMarkClassifierHandle_t	obj
	)

Perform road mark classifier GPU stages.

Inputs and outputs must be bound before this call.

Parameters

[in]	stage	Processing stage to run.
[in]	obj	Specifies the RoadMarkClassifier handle.

Returns: DW_INVALID_ARGUMENT, DW_FAILURE, DW_SUCCESS

◆ dwRoadMarkClassifier_release()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_release ( dwRoadMarkClassifierHandle_t obj )

Releases the RoadMarkClassifier module.

Parameters

[in] obj The object handle to release.

Returns: DW_SUCCESS, DW_INVALID_HANDLE, DW_BAD_CAST

Note: This method renders the handle unusable.

◆ dwRoadMarkClassifier_reset()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_reset ( dwRoadMarkClassifierHandle_t obj )

Resets RoadMarkClassifier.

Parameters

[in] obj Handle to reset.

Returns: DW_SUCCESS, DW_INVALID_HANDLE, DW_BAD_CAST

◆ dwRoadMarkClassifier_setCUDAStream()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_setCUDAStream	(	cudaStream_t	stream,
		dwRoadMarkClassifierHandle_t	obj
	)

Sets the CUDA stream to be used.

Parameters

[in]	stream	The CUDA stream to be used.
[in]	obj	A pointer to the RoadMarkClassifier handle that is updated.

Returns: DW_INVALID_ARGUMENT, DW_SUCCESS

◆ dwRoadMarkClassifier_setThreshold()

DW_API_PUBLIC dwStatus dwRoadMarkClassifier_setThreshold	(	float32_t	threshold,
		dwRoadMarkClassifierHandle_t	obj
	)

Sets the classification threshold to be used.

Parameters

[in]	threshold	The classification threshold to use.
[in]	obj	A pointer to the RoadMarkClassifier handle that is updated.

Returns: DW_INVALID_ARGUMENT, DW_SUCCESS

Detailed Description

Data Structures

Typedefs

Enumerations

Functions

Data Structure Documentation

◆ dwRoadMarkClassifierParams

Typedef Documentation

◆ dwRoadMarkClassifierHandle_t

Enumeration Type Documentation

◆ dwRoadMarkClassifierSmoothingType

◆ dwRoadMarkClassifierStage

Function Documentation

◆ dwRoadMarkClassifier_bindInputImageArray()

◆ dwRoadMarkClassifier_bindInputRoadmarkDetection()

◆ dwRoadMarkClassifier_bindOutput()

◆ dwRoadMarkClassifier_getCUDAStream()

◆ dwRoadMarkClassifier_getThreshold()

◆ dwRoadMarkClassifier_initDefaultParams()

◆ dwRoadMarkClassifier_initializeFromRoadMarkNet()

◆ dwRoadMarkClassifier_process()

◆ dwRoadMarkClassifier_release()

◆ dwRoadMarkClassifier_reset()

◆ dwRoadMarkClassifier_setCUDAStream()

◆ dwRoadMarkClassifier_setThreshold()