Region-Focusing Data Augmentation via Salient Region Activation and Bitplane Recombination for Target Detection
As the performance of a convolutional neural network is logarithmically proportional to the amount of training data, data augmentation has attracted increasing attention in recent years. Although the current data augmentation methods are efficient because they force the network to learn multiple par...
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MDPI AG
2024-12-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/16/24/4806 |
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| author | Huan Zhang Xiaolin Han Weidong Sun |
| author_facet | Huan Zhang Xiaolin Han Weidong Sun |
| author_sort | Huan Zhang |
| collection | DOAJ |
| description | As the performance of a convolutional neural network is logarithmically proportional to the amount of training data, data augmentation has attracted increasing attention in recent years. Although the current data augmentation methods are efficient because they force the network to learn multiple parts of a given training image through occlusion or re-editing, most of them can damage the internal structures of targets and ultimately affect the results of subsequent application tasks. To this end, region-focusing data augmentation via salient region activation and bitplane recombination for the target detection of optical satellite images is proposed in this paper to solve the problem of internal structure loss in data augmentation. More specifically, to boost the utilization of the positive regions and typical negative regions, a new surroundedness-based strategy for salient region activation is proposed, through which new samples with meaningful focusing regions can be generated. And to generate new samples of the focusing regions, a region-based strategy for bitplane recombination is also proposed, through which internal structures of the focusing regions can be reserved. Thus, a multiplied effect of data augmentation by the two strategies can be achieved. In addition, this is the first time that data augmentation has been examined from the perspective of meaningful focusing regions, rather than the whole sample image. Experiments on target detection with public datasets have demonstrated the effectiveness of this proposed method, especially for small targets. |
| format | Article |
| id | doaj-art-0cb7c36ae2e44f1b828eef5102952d46 |
| institution | Kabale University |
| issn | 2072-4292 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj-art-0cb7c36ae2e44f1b828eef5102952d462024-12-27T14:51:22ZengMDPI AGRemote Sensing2072-42922024-12-011624480610.3390/rs16244806Region-Focusing Data Augmentation via Salient Region Activation and Bitplane Recombination for Target DetectionHuan Zhang0Xiaolin Han1Weidong Sun2Department of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaSchool of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaDepartment of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaAs the performance of a convolutional neural network is logarithmically proportional to the amount of training data, data augmentation has attracted increasing attention in recent years. Although the current data augmentation methods are efficient because they force the network to learn multiple parts of a given training image through occlusion or re-editing, most of them can damage the internal structures of targets and ultimately affect the results of subsequent application tasks. To this end, region-focusing data augmentation via salient region activation and bitplane recombination for the target detection of optical satellite images is proposed in this paper to solve the problem of internal structure loss in data augmentation. More specifically, to boost the utilization of the positive regions and typical negative regions, a new surroundedness-based strategy for salient region activation is proposed, through which new samples with meaningful focusing regions can be generated. And to generate new samples of the focusing regions, a region-based strategy for bitplane recombination is also proposed, through which internal structures of the focusing regions can be reserved. Thus, a multiplied effect of data augmentation by the two strategies can be achieved. In addition, this is the first time that data augmentation has been examined from the perspective of meaningful focusing regions, rather than the whole sample image. Experiments on target detection with public datasets have demonstrated the effectiveness of this proposed method, especially for small targets.https://www.mdpi.com/2072-4292/16/24/4806region-focusingdata augmentationsalient region activationbitplane recombinationtarget detection |
| spellingShingle | Huan Zhang Xiaolin Han Weidong Sun Region-Focusing Data Augmentation via Salient Region Activation and Bitplane Recombination for Target Detection Remote Sensing region-focusing data augmentation salient region activation bitplane recombination target detection |
| title | Region-Focusing Data Augmentation via Salient Region Activation and Bitplane Recombination for Target Detection |
| title_full | Region-Focusing Data Augmentation via Salient Region Activation and Bitplane Recombination for Target Detection |
| title_fullStr | Region-Focusing Data Augmentation via Salient Region Activation and Bitplane Recombination for Target Detection |
| title_full_unstemmed | Region-Focusing Data Augmentation via Salient Region Activation and Bitplane Recombination for Target Detection |
| title_short | Region-Focusing Data Augmentation via Salient Region Activation and Bitplane Recombination for Target Detection |
| title_sort | region focusing data augmentation via salient region activation and bitplane recombination for target detection |
| topic | region-focusing data augmentation salient region activation bitplane recombination target detection |
| url | https://www.mdpi.com/2072-4292/16/24/4806 |
| work_keys_str_mv | AT huanzhang regionfocusingdataaugmentationviasalientregionactivationandbitplanerecombinationfortargetdetection AT xiaolinhan regionfocusingdataaugmentationviasalientregionactivationandbitplanerecombinationfortargetdetection AT weidongsun regionfocusingdataaugmentationviasalientregionactivationandbitplanerecombinationfortargetdetection |