• Laser & Optoelectronics Progress
  • Vol. 56, Issue 23, 231502 (2019)
Miaohui Zhang1、2, Bo Zhang1、*, and Chengcheng Gao1
Author Affiliations
  • 1Henan Key Laboratory of Big Data Analysis and Processing, Henan University, Kaifeng, Henan 475004, China
  • 2Institute of Data and Knowledge Engineering, Henan University, Kaifeng, Henan 475004, China
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    DOI: 10.3788/LOP56.231502 Cite this Article Set citation alerts
    Miaohui Zhang, Bo Zhang, Chengcheng Gao. Object Classification Based on Multitask Convolutional Neural Network[J]. Laser & Optoelectronics Progress, 2019, 56(23): 231502 Copy Citation Text show less
    Structure of MTCNN
    Fig. 1. Structure of MTCNN
    Detection of image detail areas. (a) Original image; (b) saliency detection; (c) corner detection
    Fig. 2. Detection of image detail areas. (a) Original image; (b) saliency detection; (c) corner detection
    Fine-grained images
    Fig. 3. Fine-grained images
    Accuracy changes of car-type and car-color datasets under PReLu. (a) Accuracy changes of car-type; (b) accuracy changes of car-color
    Fig. 4. Accuracy changes of car-type and car-color datasets under PReLu. (a) Accuracy changes of car-type; (b) accuracy changes of car-color
    Car Dataset
    Fig. 5. Car Dataset
    Accuracy changes of MTCNN training for Car Dataset
    Fig. 6. Accuracy changes of MTCNN training for Car Dataset
    Accuracy changes of MTCNN* training for Car Dataset
    Fig. 7. Accuracy changes of MTCNN* training for Car Dataset
    Multi-label outputs of samples
    Fig. 8. Multi-label outputs of samples
    DatasetModelClassTrainTestAccuracy /%
    Car-multi(type)MTCNN*2159969790.23
    Car-multi(color)MTCNN*5150069380.75
    Car-multi(type)MTCNN2159969781.03
    Car-multi(color)MTCNN5150069376.18
    Car-typeAlexNet2159969777.75
    Car-colorAlexNet5150069375.06
    Table 1. Group experiments of Car Dataset
    DatasetModelNet-DeepBatchsModel size /MbitAccuracy /%
    Car-multi(type)MTCNN*8200021790.23
    Car-multi(color)MTCNN*8200021780.75
    Car-typeAlexNet8150020277.75
    Car-colorAlexNet8150020275.06
    Car-typeGoogleNet-v12225004890.15
    Car-colorGoogleNet-v12225004878.78
    Car-typeVGG-1619300052788.56
    Car-colorVGG-1619300052777.17
    Table 2. Performance of Car Dataset under different networks
    Miaohui Zhang, Bo Zhang, Chengcheng Gao. Object Classification Based on Multitask Convolutional Neural Network[J]. Laser & Optoelectronics Progress, 2019, 56(23): 231502
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