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author | George Gekov <george.gekov@arm.com> | 2021-08-16 11:32:10 +0100 |
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committer | Jim Flynn <jim.flynn@arm.com> | 2022-02-05 19:49:06 +0000 |
commit | 23c26277086c78704a17f0dae86da947816320c0 (patch) | |
tree | 88b02fd1fae3130256d059251788a7ef68d2831f /samples/KeywordSpotting/src/Decoder.cpp | |
parent | 922b912fd2d462bac0809bac5669310ad1506310 (diff) | |
download | armnn-23c26277086c78704a17f0dae86da947816320c0.tar.gz |
MLECO-2079 Adding the C++ KWS example
Signed-off-by: Eanna O Cathain <eanna.ocathain@arm.com>
Change-Id: I81899bbfaada32f478c2e2fc6441eabb94d8d0fc
Diffstat (limited to 'samples/KeywordSpotting/src/Decoder.cpp')
-rw-r--r-- | samples/KeywordSpotting/src/Decoder.cpp | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/samples/KeywordSpotting/src/Decoder.cpp b/samples/KeywordSpotting/src/Decoder.cpp new file mode 100644 index 0000000000..107e25caa9 --- /dev/null +++ b/samples/KeywordSpotting/src/Decoder.cpp @@ -0,0 +1,35 @@ +// +// Copyright © 2021 Arm Ltd and Contributors. All rights reserved. +// SPDX-License-Identifier: MIT +// + +#include "Decoder.hpp" + +std::pair<int, float> kws::Decoder::decodeOutput(std::vector<int8_t>& modelOutput) +{ + + std::vector<float> dequantisedOutput; + //Normalise vector values into new vector + for (auto& value : modelOutput) + { + float normalisedModelOutput = this->quantisationScale * (static_cast<float >(value) - + static_cast<float >(this->quantisationOffset)); + dequantisedOutput.push_back(normalisedModelOutput); + } + + //Get largest value in modelOutput + const std::vector<float>::iterator& maxElementIterator = std::max_element(dequantisedOutput.begin(), + dequantisedOutput.end()); + //Find the labelMapIndex of the largest value which corresponds to a key in a label map + int labelMapIndex = static_cast<int>(std::distance(dequantisedOutput.begin(), maxElementIterator)); + + //Round to two DP + float maxModelOutputProbability = std::roundf((*maxElementIterator) * 100) / 100; + + return std::make_pair(labelMapIndex, maxModelOutputProbability); + +} + + + + |