Compute Library
 21.02
DetectionPostProcessLayerNode.cpp
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1 /*
2  * Copyright (c) 2019 Arm Limited.
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25 
26 #include "arm_compute/core/Utils.h"
30 
31 namespace arm_compute
32 {
33 namespace graph
34 {
36  : _info(detection_info)
37 {
38  _input_edges.resize(3, EmptyEdgeID);
39  _outputs.resize(4, NullTensorID);
40 }
41 
43 {
44  return _info;
45 }
46 
48 {
49  if((input_id(0) != NullTensorID) && (input_id(1) != NullTensorID) && (input_id(2) != NullTensorID) && (output_id(0) != NullTensorID) && (output_id(1) != NullTensorID)
50  && (output_id(2) != NullTensorID) && (output_id(3) != NullTensorID))
51  {
52  for(unsigned int i = 0; i < 4; ++i)
53  {
54  Tensor *dst = output(i);
55  ARM_COMPUTE_ERROR_ON(dst == nullptr);
56  dst->desc() = configure_output(i);
57  }
58  return true;
59  }
60  return false;
61 }
62 
64 {
65  ARM_COMPUTE_UNUSED(idx);
66  ARM_COMPUTE_ERROR_ON(idx >= _outputs.size());
67 
68  TensorDescriptor output_desc;
69  const unsigned int num_detected_box = _info.max_detections() * _info.max_classes_per_detection();
70 
71  switch(idx)
72  {
73  case 0:
74  // Configure boxes output
75  output_desc.shape = TensorShape(kNumCoordBox, num_detected_box, kBatchSize);
76  break;
77  case 1:
78  case 2:
79  // Configure classes or scores output
80  output_desc.shape = TensorShape(num_detected_box, kBatchSize);
81  break;
82  case 3:
83  // Configure num_detection
84  output_desc.shape = TensorShape(1);
85  break;
86  default:
87  ARM_COMPUTE_ERROR("Unsupported output index");
88  }
89  output_desc.data_type = DataType::F32;
90 
91  return output_desc;
92 }
93 
95 {
97 }
98 
100 {
101  v.visit(*this);
102 }
103 } // namespace graph
104 } // namespace arm_compute
Shape of a tensor.
Definition: TensorShape.h:39
unsigned int max_detections() const
Get max detections.
Definition: Types.h:1137
#define ARM_COMPUTE_ERROR(msg)
Print the given message then throw an std::runtime_error.
Definition: Error.h:352
1 channel, 1 F32 per channel
#define ARM_COMPUTE_ERROR_ON(cond)
If the condition is true then an error message is printed and an exception thrown.
Definition: Error.h:466
Copyright (c) 2017-2021 Arm Limited.
TensorDescriptor & desc()
TensorInfo metadata accessor.
Definition: Tensor.cpp:40
#define ARM_COMPUTE_UNUSED(...)
To avoid unused variables warnings.
Definition: Error.h:152
virtual void visit(INode &n)=0
Visit INode.
Tensor * output(size_t idx) const
Returns the tensor of a given output of the node.
Definition: INode.cpp:158
DetectionPostProcessLayerInfo detection_post_process_info() const
DetectionPostProcess metadata accessor.
TensorID input_id(size_t idx) const
Returns the tensor ID of a given input of the node.
Definition: INode.cpp:137
NodeType
Supported nodes.
Definition: Types.h:142
constexpr EdgeID EmptyEdgeID
Definition: Types.h:75
TensorDescriptor configure_output(size_t idx) const override
Calculates output configuration.
bool forward_descriptors() override
Forwards descriptor information to outputs if possible.
unsigned int max_classes_per_detection() const
Get max_classes per detection.
Definition: Types.h:1142
NodeType type() const override
Returns node&#39;s type.
Detection Output layer info.
Definition: Types.h:1095
TensorID output_id(size_t idx) const
Returns the tensor ID of a given output of the node.
Definition: INode.cpp:144
constexpr TensorID NullTensorID
Constant NodeID specifying an equivalent of null node.
Definition: Types.h:71
Node visitor interface.
Definition: INodeVisitor.h:34
DetectionPostProcessLayerNode(DetectionPostProcessLayerInfo detection_info)
Constructor.
void accept(INodeVisitor &v) override
Accepts a node visitor.
Tensor object.
Definition: Tensor.h:41