nvinfer1::plugin::DetectionOutputParameters Struct Reference

The DetectionOutput plugin layer generates the detection output based on location and confidence predictions by doing non maximum suppression. More...

Collaboration diagram for nvinfer1::plugin::DetectionOutputParameters:

Public Attributes
bool	shareLocation
bool	varianceEncodedInTarget
int32_t	backgroundLabelId
int32_t	numClasses
int32_t	topK
int32_t	keepTopK
float	confidenceThreshold
float	nmsThreshold
CodeTypeSSD	codeType
int32_t	inputOrder [3]
bool	confSigmoid
bool	isNormalized

Detailed Description

The DetectionOutput plugin layer generates the detection output based on location and confidence predictions by doing non maximum suppression.

This plugin first decodes the bounding boxes based on the anchors generated. It then performs non_max_suppression on the decoded bouding boxes. DetectionOutputParameters defines a set of parameters for creating the DetectionOutput plugin layer. It contains:

Parameters

shareLocation	If true, bounding box are shared among different classes.
varianceEncodedInTarget	If true, variance is encoded in target. Otherwise we need to adjust the predicted offset accordingly.
backgroundLabelId	Background label ID. If there is no background class, set it as -1.
numClasses	Number of classes to be predicted.
topK	Number of boxes per image with top confidence scores that are fed into the NMS algorithm.
keepTopK	Number of total bounding boxes to be kept per image after NMS step.
confidenceThreshold	Only consider detections whose confidences are larger than a threshold.
nmsThreshold	Threshold to be used in NMS.
codeType	Type of coding method for bbox.
inputOrder	Specifies the order of inputs {loc_data, conf_data, priorbox_data}.
confSigmoid	Set to true to calculate sigmoid of confidence scores.
isNormalized	Set to true if bounding box data is normalized by the network.

Member Data Documentation

shareLocation

bool nvinfer1::plugin::DetectionOutputParameters::shareLocation

varianceEncodedInTarget

bool nvinfer1::plugin::DetectionOutputParameters::varianceEncodedInTarget

backgroundLabelId

int32_t nvinfer1::plugin::DetectionOutputParameters::backgroundLabelId

numClasses

int32_t nvinfer1::plugin::DetectionOutputParameters::numClasses

topK

int32_t nvinfer1::plugin::DetectionOutputParameters::topK

keepTopK

int32_t nvinfer1::plugin::DetectionOutputParameters::keepTopK

confidenceThreshold

float nvinfer1::plugin::DetectionOutputParameters::confidenceThreshold

nmsThreshold

float nvinfer1::plugin::DetectionOutputParameters::nmsThreshold

codeType

CodeTypeSSD nvinfer1::plugin::DetectionOutputParameters::codeType

inputOrder

int32_t nvinfer1::plugin::DetectionOutputParameters::inputOrder[3]

confSigmoid

bool nvinfer1::plugin::DetectionOutputParameters::confSigmoid

isNormalized

bool nvinfer1::plugin::DetectionOutputParameters::isNormalized

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The documentation for this struct was generated from the following file:

• NvInferPluginUtils.h