Compute Library
 20.05
DetectionOutputLayerNode.cpp
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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(1, NullTensorID);
40 }
41 
43 {
44  return _info;
45 }
46 
49 {
50  const unsigned int max_size = info.keep_top_k() * ((input_descriptor.shape.num_dimensions() > 1) ? input_descriptor.shape[1] : 1);
51 
52  TensorDescriptor output_descriptor = input_descriptor;
53  output_descriptor.shape.set(0, detection_size);
54  output_descriptor.shape.set(1, max_size);
55 
56  return output_descriptor;
57 }
58 
60 {
61  if((input_id(0) != NullTensorID) && (input_id(1) != NullTensorID) && (input_id(2) != NullTensorID) && (output_id(0) != NullTensorID))
62  {
63  Tensor *dst = output(0);
64  ARM_COMPUTE_ERROR_ON(dst == nullptr);
65  dst->desc() = configure_output(0);
66  return true;
67  }
68  return false;
69 }
70 
72 {
73  ARM_COMPUTE_UNUSED(idx);
74  ARM_COMPUTE_ERROR_ON(idx >= _outputs.size());
75 
76  const Tensor *input0 = input(0);
77  ARM_COMPUTE_ERROR_ON(input0 == nullptr);
78 
79  return compute_output_descriptor(input0->desc(), _info);
80 }
81 
83 {
85 }
86 
88 {
89  v.visit(*this);
90 }
91 } // namespace graph
92 } // namespace arm_compute
bool forward_descriptors() override
Forwards descriptor information to outputs if possible.
#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
TensorDescriptor configure_output(size_t idx) const override
Calculates output configuration.
Copyright (c) 2017-2020 ARM Limited.
NodeType type() const override
Returns node's type.
#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
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:134
DetectionOutputLayerInfo detection_output_info() const
DetectionOutput metadata accessor.
constexpr EdgeID EmptyEdgeID
Definition: Types.h:75
Detection Output layer info.
Definition: Types.h:943
void accept(INodeVisitor &v) override
Accepts a node visitor.
DetectionOutputLayerNode(DetectionOutputLayerInfo detection_info)
Constructor.
unsigned int num_dimensions() const
Returns the effective dimensionality of the tensor.
Definition: Dimensions.h:122
TensorID output_id(size_t idx) const
Returns the tensor ID of a given output of the node.
Definition: INode.cpp:144
TensorShape & set(size_t dimension, size_t value, bool apply_dim_correction=true)
Accessor to set the value of one of the dimensions.
Definition: TensorShape.h:78
static TensorDescriptor compute_output_descriptor(const TensorDescriptor &input_descriptor, const DetectionOutputLayerInfo &info)
Computes detection output output descriptor.
constexpr TensorID NullTensorID
Constant NodeID specifying an equivalent of null node.
Definition: Types.h:71
Node visitor interface.
Definition: INodeVisitor.h:34
Tensor * input(size_t idx) const
Returns the tensor of a given input of the node.
Definition: INode.cpp:150
Tensor object.
Definition: Tensor.h:41