用于宫颈癌筛查和诊断的Pocket Colposcope对比度、耐用性和便携性改进的集成策略

数据集获取（Figshare）

• 源站标题：An integrated strategy for improving contrast, durability, and portability of a Pocket Colposcope for cervical cancer screening and diagnosis
• DOI：10.1371/journal.pone.0192530
• 发布日期：2018-02-09
• 文件数：4 个
• 文件总体积：28.36 MB
• 源站页面：https://plos.figshare.com/articles/dataset/An_integrated_strategy_for_improving_contrast_durability_and_portability_of_a_Pocket_Colposcope_for_cervical_cancer_screening_and_diagnosis/5875041

命令行下载

curl -L -o "S1 Fig.tif" "https://ndownloader.figshare.com/files/10447497"
curl -L -o "S2 Fig.tif" "https://ndownloader.figshare.com/files/10447509"
curl -L -o "S3 Fig.tif" "https://ndownloader.figshare.com/files/10447521"
curl -L -o "S1 Table.docx" "https://ndownloader.figshare.com/files/10447524"

文件清单

• S1 Fig.tif（9.24 MB）
• S2 Fig.tif（13.27 MB）
• S3 Fig.tif（5.84 MB）
• S1 Table.docx（14.51 KB）

文件总体积 28.36 MB（源站 API 实测）。

数据加载示例（图像类）

from PIL import Image
import glob, os

files = (glob.glob(os.path.join(path, "**", "*.png"), recursive=True)
       + glob.glob(os.path.join(path, "**", "*.jpg"), recursive=True)
       + glob.glob(os.path.join(path, "**", "*.tif"), recursive=True))
print("图像文件数:", len(files))
img = Image.open(files[0]); print("尺寸/模式:", img.size, img.mode)

# torchvision Dataset 方式:
# from torchvision import datasets
# ds = datasets.ImageFolder(path)  # 要求 子目录=类别

目录组织与标注格式以源站说明和下载后实际文件为准。

数据说明

Introduction
We have previously developed a portable Pocket Colposcope for cervical cancer screening in resource-limited settings. In this manuscript we report two different strategies (cross-polarization and an integrated reflector) to improve image contrast levels achieved with the Pocket Colposcope and evaluate the merits of each strategy compared to a standard-of-care digital colposcope. The desired outcomes included reduced specular reflection (glare), increased illumination beam pattern uniformity, and reduced electrical power budget. In addition, anti-fogging and waterproofing features were incorporated to prevent the Pocket Colposcope from fogging in the vaginal canal and to enable rapid disinfection by submersion in chemical agents.
Methods
Cross-polarization (Generation 3 Pocket Colposcope) and a new reflector design (Generation 4 Pocket Colposcope) were used to reduce glare and improve contrast. The reflector design (including the angle and height of the reflector sidewalls) was optimized through ray-tracing simulations. Both systems were characterized with a series of bench tests to assess specular reflection, beam pattern uniformity, and image contrast. A pilot clinical study was conducted to compare the Generation 3 and 4 Pocket Colposcopes to a standard-of-care colposcope (Leisegang Optik 2). Specifically, paired images of cervices were collected from the standard-of-care colposcope and either the Generation 3 (n = 24 patients) or the Generation 4 (n = 32 patients) Pocket Colposcopes. The paired images were blinded by device, randomized, and sent to an expert physician who provided a diagnosis for each image. Corresponding pathology was obtained for all image pairs. The primary outcome measures were the level of agreement (%) and κ (kappa) statistic between the standard-of-care colposcope and each Pocket Colposcope (Generation 3 and Generation 4).
Results
Both generations of Pocket Colposcope had significantly higher image contrast when compared to the standard-of-care colposcope. The addition of anti-fog and waterproofing features to the Generation 3 and 4 Pocket Colposcope did not impact image quality based on qualitative and quantitative metric

许可

CC BY 4.0

引用

学术使用请引用 DOI 10.1371/journal.pone.0192530（source: https://plos.figshare.com/articles/dataset/An_integrated_strategy_for_improving_contrast_durability_and_portability_of_a_Pocket_Colposcope_for_cervical_cancer_screening_and_diagnosis/5875041）。