Paper · 2024 · Proceedings of the Conference on Robots and Vision

QWID: Quantized Weed Identification Deep Neural Network

Parikshit Singh Rathore

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Open access · cc-by

Abstract

In this paper, we present an efficient solution for weed classification in agriculture. We focus on optimizing model performance at inference while respecting the constraints of the agricultural domain. We propose a Quantized Deep Neural Network model that classifies a dataset of 9 weed classes using 8-bit integer (int8) quantization, a departure from standard 32-bit floating point (fp32) models. Recognizing the hardware resource limitations in agriculture, our model balances model size, inference time, and accuracy, aligning with practical requirements. We evaluate the approach on ResNet-50 and InceptionV3 architectures, comparing their performance against their int8 quantized versions. Transfer learning and fine-tuning are applied using the DeepWeeds dataset. The results show staggering model size and inference time reductions while maintaining accuracy in real-world production scenarios like Desktop, Mobile and Raspberry Pi. Our work sheds light on a promising direction for efficient AI in agriculture, holding potential for broader applications.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 2

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Int8 quantization reduced weed classifier model size relative to fp32 versions.

Taxon
weedt0
Outcome
model sizee0
Direction
reductionse0
Comparator
standard 32-bit floating point (fp32) modelse1

Verbatim

e0

“staggering model size and inference time reductions while maintaining accuracy”

✓ located verbatim in the source · abstract, characters 789–867 · show in text ↑
t0

“Weed”

✓ located verbatim in the source · title, characters 16–20 · show in text ↑
e1

“standard 32-bit floating point (fp32) models”

✓ located verbatim in the source · abstract, characters 354–398 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Int8 quantization reduced weed classifier inference time.

Taxon
weedt0
Outcome
inference timee0
Direction
reductionse0

Not reportedComparatorValue

Verbatim

e0

“staggering model size and inference time reductions while maintaining accuracy”

✓ located verbatim in the source · abstract, characters 789–867 · show in text ↑
t0

“Weed”

✓ located verbatim in the source · title, characters 16–20 · show in text ↑