Journal of Jilin University(Engineering and Technology Edition) ›› 2023, Vol. 53 ›› Issue (4): 1155-1162.doi: 10.13229/j.cnki.jdxbgxb.20220327

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New method for extracting person re-identification attributes based on multi-scale features

Peng YU(),Yan PIAO()   

  1. School of Electronic and Information Engineering,Changchun University of Science and Technology,Changchun 130022,China
  • Received:2022-03-29 Online:2023-04-01 Published:2023-04-20
  • Contact: Yan PIAO E-mail:yup1212@mails.cust.edu.cn;piaoyan@cust.edu.cn

Abstract:

At present, person re-identification (ReID) still exists some issues to solve, such as background confusion, blocking interference, pose misalignment, and insufficient explanation. In this paper, a new method based on multi-scale feature extraction is proposed for person ReID. Specifically, using the feature learning module to learn attributes and convolving by attribute grouping, which could enhance the interpretability of the model and reduce the impact of interference features by comparing the intermediate property characteristics. Compared with other methods, the new method was tested on three commonly used public datasets. The detailed experiments demonstrate that the new method can efficiently extract semantic information from the middle layer and outperforms other methods tested across datasets.

Key words: computer application, interpretability, person re-identification, multi-scale features

CLC Number: 

  • TP391.4

Fig.1

Overall structure of multiple output sections"

Table 1

Model parameters"

阶 段输出尺寸OSNet阶段输出尺寸MLLANet
conv1128×64, 647×7 conv, stride 2
64×32, 643×3 max pool, stride 2
1层conv264×32, 256bottleneck × 2
transition64×32, 2561×1 conv
32×16, 2562×2 average pool, stride 2
MLL032×16, 2561×1 convMLLA032×16, 256×30+301×1 conv
1×1, 256global average pool1×1, 256×30+30global average pool
1×1, 256fc1×1, 256×30+30fc
2层conv332×16, 384bottleneck × 2
transition32×16, 3841×1 conv
16×8, 3842×2 average pool, stride 2
MLL116×8, 3841×1 convMLLA116×8, 384 ×30+301×1 conv
1×1, 384global average pool1×1, 384 ×30+30global average pool
1×1, 384fc1×1, 384 ×30+30fc
3层conv416×8, 512bottleneck × 2
MLL216×8, 5121×1 convMLLA216×8, 512 ×30+301×1 conv
1×1, 512global average pool1×1, 512 ×30+30global average pool
1×1, 512fc1×1, 512 ×30+30fc

Fig.2

Middle layer learning module"

Table 2

ResNet statistics for layer where the maximumvalue of the same category is located"

1层2层3层4层
飞机0313415272
汽车0340403257
0338418244
0303457240
鹿0329436235
0307460233
0325419256
0338415247
0295450255
卡车0312427261

Fig.3

Comparison of heat maps after MLL added"

Table 3

Compare models with pre-trained and nopre-trained"

模型权重

平均

精度

前1次命中的准确率前5次命中的准确率
OSNet预训练84.994.896.8
OSNet无预训练63.083.593.3
OSNet+MLL预训练86.795.997.4
OSNet+MLL无预训练72.589.395.5
GCP预训练88.995.298.2
GCP无预训练85.393.997.9
GCP+MLL预训练89.795.498.5
GCP+MLL无预训练87.794.498.1

Table 4

Results tested on Market-1501, DukeMTMC-ReID, and CUHK03 datasets, respectively"

方 法主干网Market?1501DukeMTMC?ReIDCUHK03
mAPRank?1mAPRank?1mAPRank?1
PCB+RPP5ResNet?5081.693.869.283.357.563.7
MGN10ResNet?5086.995.678.488.766.066.8
VMP22ResNet?5080.893.072.683.6--
OSNet6OSNet84.994.873.588.667.872.3
AAnet23ResNet?5082.593.972.686.4--
CAMA24ResNet?5084.594.7--64.266.6
BAT?net4ResNet?5085.594.177.387.773.276.2
MHN25ResNet?5085.095.177.289.165.471.7
SCSN26ResNet?5088.595.779.090.180.284.1
GCP21ResNet?5088.995.278.689.775.677.9
RGA?SC2ResNet?5088.496.1--74.579.6
?RGA?S2ResNet?5088.095.777.588.872.778.1
PISNet27ResNet?5087.195.678.788.8--
APNet?S9ResNet?5089.096.178.889.378.180.9
APNet?C9ResNet?5090.596.281.590.481.583.0
MLLNetOSNet86.795.974.689.269.773.4
MLLANetOSNet87.896.175.189.5--
MLLNet2APNet?C89.995.981.790.581.783.1
MLLNet3GCP89.795.479.590.076.978.7

Table 5

Cross-domain evaluation on Market-1501and DukeMTMC-ReID dataset"

训练集测试集模型平均精度Rank?1Rank?5Rank?10
MarketDukeAPNet?c322.837.752.459.0
MarketDukeOSNet26.748.562.367.4
MarketDukeOSNet_MLL26.949.563.168.0
MarketDukeOSNet_MLLA27.149.663.769.0
DukeMarketAPNet?c323.750.966.672.6
DukeMarketOSNet26.157.773.780.0
DukeMarketOSNet_MLL26.258.073.482.5
DukeMarketOSNet_MLLA26.859.875.681.5
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