Initial upload: public_fundus (198k images, 42 shards) + manifest + captions + code
e2f75d1 verified | # Eye Pretrain 数据集总览 | |
| > 生成时间:2026-05-23 | |
| > | |
| > 三批数据,统一 41 列 manifest schema,5 caption/image (4 L1 + 1 L3),cohort 命名空间隔离 | |
| --- | |
| ## 0. 一表见全貌 | |
| | 来源 | 总图像 | OCT B-scan | fundus_color | slo_gray | 状态 | | |
| |---|---:|---:|---:|---:|---| | |
| | **私有 Shanghai DRI OCT Triton** | 419,042 | 352,343 | 30,714 | 35,985 | ✅ 已落地 h800 | | |
| | **公开 fundus(6 cohort)** | 198,629 | 51,200 (GAMMA) | 147,429 | 0 | 已落地 (h800) | | |
| | **公开 OCT(19 cohort)** | 488,705 | 488,705 | 0 | 0 | 本地完成 / 打包就绪 | | |
| | **合计** | **1,106,376** | **~913,905** | **~177,429** | **~30,000** | | | |
| 约 **110 万图像**、其中 OCT B-scan **91 万张**。 | |
| --- | |
| ## 1. 私有数据集 — Shanghai DRI OCT Triton | |
| ### 1.1 来源 | |
| - 医院:上海中山医院 | |
| - 设备:Topcon DRI OCT Triton(SS-OCT,扫频源 OCT) | |
| - 原始格式:`.fda`(Topcon 专有,约 30,735 个文件) | |
| ### 1.2 规模 | |
| | 指标 | 数量 | | |
| |---|---:| | |
| | Studies (FDA 文件数) | 30,734 | | |
| | Total images | 419,042 | | |
| | Captions | 2,095,210 (= 419,042 × 5) | | |
| | OCT B-scan rows | **352,343** (主 radial 30,734 study × ~11.3 张/study + ~5k 张 subscan B-scan;部分 study radial 解出失败少于 12 张) | | |
| | Fundus color rows | **30,714** (少 20 个 study 无 fundus) | | |
| | SLO gray rows | **35,985** (主 SLO 30,734 + subscan SLO ~5k) | | |
| `patient_hash = study_hash`(Topcon `@PATIENT_INFO_03` 加密,按 file-level 切分)。 | |
| ### 1.3 每个 study 的组件 | |
| - **12 张径向 OCT B-scan** — `scan_protocol=radial_12`, 9 mm/slice, 180° | |
| - **1 张 fundus_color** — 45° 黄斑中心彩照 | |
| - **1 张 slo_gray** — 共焦扫描激光检眼镜 | |
| - **segmentation.npz** — 10 层 boundaries (ILM/RNFL/GCL+IPL/INL/OPL/ONL/ELM/IS-OS/RPE/BM) + invalid mask | |
| - **可选**:sub-scan(`has_subscan=True` 的 study,约 5k 个),多为 optic disc OCT B-scan + SLO | |
| ### 1.4 设备信息(写入 manifest 每行) | |
| | 字段 | 值 | | |
| |---|---| | |
| | device_vendor | topcon | | |
| | device_model | dri_oct_triton | | |
| | device_technology | ss_oct | | |
| | hospital_domain | shanghai_zhongshan_v1 | | |
| | ethnicity | Asian | | |
| ### 1.5 路径 | |
| | | 路径 | | |
| |---|---| | |
| | 本地 extracted | `/mnt/synology/08.数据/eye_pretrain/extracted/shanghai_drioct_triton/` | | |
| | 本地 packed | `/mnt/synology/08.数据/eye_pretrain/packed/` (256 bucket + manifest, 153 GB, MD5 全) | | |
| | h800 packed | `/mnt/tidal-alsh-share2/dataset/qinshengqian/research/c3/private_eye_pretrain_packed/` | | |
| | **h800 unpack 目标** | `/mnt/tidal-alsh-share2/dataset/qinshengqian/research/c3/Data/Generation1/private_topcon/` | | |
| ### 1.6 代码 | |
| - `extract_fda.py` — FDA → bscan PNG + fundus JPG + SLO PNG + segmentation NPZ + meta.json | |
| - `extract_subscan.py` — 追加 sub-scan 内容(@SUB_* chunks) | |
| - `build_manifest.py` — meta.json → images_v1.parquet / studies_v1.parquet / patients_v1.parquet / captions_v1.parquet | |
| - `pack.sh` / `unpack.sh` — 256 hash 桶切分 + MD5 校验 | |
| --- | |
| ## 2. 公开 Fundus 数据集(6 cohort,198,629 images) | |
| | Cohort 名 | images | captions | 主任务 | 设备 | mask | | |
| |---|---:|---:|---|---|---| | |
| | `public_drive_vessel` | 20 | 100 | 血管分割 | Unknown | vessel + FOV | | |
| | `public_messidor2_dr` | 1,744 | 8,720 | DR 0-4 + DME + gradable | Unknown | — | | |
| | `public_idrid` | 597 | 2,985 | DR/DME 分级 + 5 类病灶 + OD/fovea 定位 | Unknown | 81 张 seg (5+OD),OD/fovea 坐标 sidecar | | |
| | `public_refuge2_disc_cup` | 1,200 | 6,000 | OD/OC 分割 + glaucoma(train 部分有 g/n 标签) | Unknown | 3 类 mask (bg/disc/cup) | | |
| | `public_eyepacs_combo_dr_aug` | 143,668 | 718,340 | DR 0-4 | Unknown (mixed) | — | | |
| | `public_gamma_multimodal` | 51,400 | 257,000 | 青光眼分级 (non/early/mid_advanced) + OD/OC + fovea | Unknown OCT scanner | DC mask + fovea sidecar | | |
| | **合计** | **198,629** | **993,145** | | | | | |
| ### 2.1 GAMMA 特殊结构 | |
| - 200 个 sample(100 train + 100 test) | |
| - 每个 sample = **1 张 fundus + 256 张 OCT B-scan**(共享 study_id) | |
| - 标签级别:volume(fundus 和 OCT 共享 glaucoma 分级标签) | |
| - Train 100 个 sample 有 fovea_x/y 坐标 → sidecar parquet | |
| ### 2.2 路径 | |
| | | 路径(h800) | | |
| |---|---| | |
| | 统一 manifest | `/mnt/tidal-alsh-share2/.../public_eye_pretrain/manifest/public_images_v1.parquet` | | |
| | 统一 captions | `/mnt/tidal-alsh-share2/.../public_eye_pretrain/captions/public_captions_v1.parquet` | | |
| | Studies | `/mnt/tidal-alsh-share2/.../public_eye_pretrain/manifest/public_studies_v1.parquet` (147,429 行) | | |
| | Schema | `/mnt/tidal-alsh-share2/.../public_eye_pretrain/schema_v1.json` | | |
| | extracted_root | `/mnt/tidal-alsh-share2/.../public_eye_pretrain/extracted/` | | |
| | Sidecar (IDRiD) | `/mnt/tidal-alsh-share2/.../public_eye_pretrain/manifest/public_idrid_sidecar.parquet` | | |
| | Sidecar (GAMMA) | `/mnt/tidal-alsh-share2/.../public_eye_pretrain/manifest/public_gamma_multimodal_sidecar.parquet` | | |
| ### 2.3 代码(本地) | |
| - `public_common.py` — 41 列 schema + caption_l1_public + study_hash 命名空间 | |
| - `adapter_drive.py` / `adapter_messidor2.py` / `adapter_idrid.py` / `adapter_refuge2.py` / `adapter_eyepacs.py` / `adapter_gamma.py` | |
| - `build_public_manifest.py` — concat 6 个 per-cohort parquet 到统一 manifest | |
| --- | |
| ## 3. 公开 OCT 数据集(19 cohort,488,705 images) | |
| ### 3.1 19 cohort 详情 | |
| | Cohort 名 | Source | studies | images | Disease | 设备 | Region | mask | Sidecar | | |
| |---|---|---:|---:|---|---|---|---|---| | |
| | `public_oct_kermany` | 1/Kermany 2018 (Cell) | 109,309 | 109,309 | CNV/DME/DRUSEN/NORMAL | Heidelberg Spectralis | USA | — | — | | |
| | `public_oct_octa500` | OCTA500/Li 2024 | 299 (1 vol 损坏跳过) | 119,600 | NORMAL/DR/AMD/CNV(仅 200 vol 有标签) | Optovue RTVue | Asian | **6 类 B-scan mask** | age+sex+eye | | |
| | `public_oct_olives` | 11/OLIVES (NeurIPS 2022) | 1,295 visits | 63,489 | DR / DME longitudinal | Spectralis HRA+OCT | Mixed | — | — | | |
| | `public_oct_nyu_poag` | 10/NYU POAG (Zenodo) | 56,576 | 56,576 | POAG / NORMAL | Unknown (volume) | Unknown | — | — | | |
| | `public_oct_areds2` | 8/AREDS2 (NEI) | 38,382 | 38,382 | AMD / NORMAL | Bioptigen SD-OCT | Mixed | — | — | | |
| | `public_oct_uestc` | UESTC天池/Wu 2023 | 35,280 | 35,280 | (无 disease 标签) | **BM-400K BMizar (Topi 国产)** + Spectralis | China | — | — | | |
| | `public_oct_c8` | C8/Kaggle | 24,000 | 24,000 | 8 class compiled | Unknown | Mixed | — | — | | |
| | `public_oct_neh_ut_2021` | 7/NEH_UT_2021 | 16,810 | 16,810 | CNV/DRUSEN/NORMAL | Heidelberg SD-OCT | Iran | — | patient_id+eye (在 CSV) | | |
| | `public_oct_retouch` | 17/RETOUCH (MICCAI 2017) | 6,936 | 6,936 | AMD/RVO | **3 设备子集** (Cirrus/Spectralis/Topcon) | Europe | **IRF/SRF/PED 3 类** | — | | |
| | `public_oct_oimhs` | 16/OIMHS | 3,859 | 3,859 | MH stage 1-4 | Spectralis SD-OCT | China | layer mask | age+sex+eye+stage | | |
| | `public_oct_srinivasan_2014` | 13/Srinivasan 2014 (Duke) | 3,231 | 3,231 | AMD/DME/NORMAL | Heidelberg Spectralis | Mixed | — | — | | |
| | `public_oct_aroi` | 6/AROI | 3,072 | 3,072 | nAMD | Cirrus 4000 | Croatia | layer mask | — | | |
| | `public_oct_amd_sd` | AMD-SD | 3,049 | 3,049 | wet_AMD | Cirrus 5000 | China | **5 类 (SRF/IRF/PED/SHRM/ISOS)** | — | | |
| | `public_oct_octdl` | 23/OCTDL | 2,064 | 2,064 | 7 类(AMD/DME/ERM/NO/RAO/RVO/VID) | Optovue RTVue | Russia | — | age+sex+patient | | |
| | `public_oct_thoct1800` | 20/THOCT1800 | 1,800 | 1,800 | AMD/DME/NORMAL | Cirrus | China | — | — | | |
| | `public_oct_chiu_dme_2015` | 12/Chiu 2015 (Duke) | 610 | 610 | DME | Heidelberg Spectralis | Unknown | **8 层 + fluid** | — | | |
| | `public_oct_octid` | 3/OCTID | 572 | 572 | DR/MH/CSR/AMD/NORMAL | Cirrus 5000 | India | — | — | | |
| | `public_oct_glaucoma` | 9/Glaucoma OCT | 49 | 49 | Glaucoma | **Stratus TD-OCT (唯一 TD)** | Unknown | ILM + RPE | — | | |
| | `public_oct_sparsity_sdoct_2012` | 14/Sparsity SDOCT 2012 | 17 | 17 | AMD/NORMAL | Bioptigen SD-OCT | Unknown | — | — | | |
| | **合计** | | **307,200** | **488,705** | | | | **126,536 行 has_segmentation=True** | | | |
| ### 3.2 路径 | |
| | | 路径 | | |
| |---|---| | |
| | 本地输出根 | `/mnt/new/OCT Retinal B-scan数据集汇总/oct_public_pretrain/` | | |
| | 统一 manifest | `.../oct_public_pretrain/manifest/oct_public_images_v1.parquet` | | |
| | 统一 captions | `.../oct_public_pretrain/captions/oct_public_captions_v1.parquet` | | |
| | Studies | `.../oct_public_pretrain/manifest/oct_public_studies_v1.parquet` (307,200) | | |
| | Sidecar | `.../public_oct_oimhs_sidecar.parquet` (3,859), `.../public_oct_octdl_sidecar.parquet` (448), `.../public_oct_octa500_sidecar.parquet` | | |
| | Schema | `.../oct_public_pretrain/schema_v1.json` | | |
| | extracted_root | `.../oct_public_pretrain/extracted/` | | |
| | 打包 (1725 tar) | `.../oct_public_pretrain/packed/` (119 GB, MD5 全) | | |
| ### 3.3 代码(本地) | |
| - `oct_public_common.py` — OCT caption_l1_oct + 多 slice study 支持 | |
| - `build_oct_public.py` — 19 dataset 处理函数 + dispatcher(基于 `unified_metadata.csv` + OCTA500/UESTC 自定义枚举) | |
| - `build_oct_public_manifest.py` — concat 19 个 per-cohort parquet | |
| - `pack.sh` / `unpack.sh` — 大 cohort 256 hash 桶切分 + MD5 | |
| ### 3.4 关键约定 | |
| - **OLIVES**: `study_id = hash(patient_eye_visit)`,`patient_hash = hash(patient)` — 跨 visit 一致 | |
| - **OCTA500**: 1 vol = 1 study,400 slice 共享 study_id,bscan_index 0–399 | |
| - **UESTC**: `scan_protocol` 区分 3 子集 (volume_3d_macula_6x6mm / 20x24mm / spectralis) | |
| - **OIMHS**: `study_basename = oimhs_p{pid}_e{eye_id}_{stem}`(修复同 patient 多 eye 同名文件冲突) | |
| --- | |
| ## 4. Modality 分布(三批合计) | |
| | Modality | 数量 | 来源 | | |
| |---|---:|---| | |
| | `oct_bscan` | **892,248** | 私有 352,343 + GAMMA 51,200 + OCT public 488,705 | | |
| | `fundus_color` | **178,143** | 私有 30,714 + 公开 fundus 147,429 | | |
| | `slo_gray` | **35,985** | 私有(含 subscan SLO)| | |
| | **总图像** | **1,106,376** | | | |
| --- | |
| ## 5. OCT 设备 / 厂商分布 | |
| | Vendor | Model | Tech | 数量 (OCT B-scan) | Cohorts | | |
| |---|---|---|---:|---| | |
| | **Topcon** | DRI OCT Triton | **SS-OCT** | ~374,000 | private (唯一 SS-OCT) | | |
| | Topcon | Topcon 3D OCT | SD-OCT | 2,688 | RETOUCH (Topcon 子集) | | |
| | **Heidelberg** | Spectralis (含 HRA+OCT) | SD-OCT | ~380,000 | Kermany, OLIVES, NEH_UT, Chiu, Srinivasan, OIMHS, RETOUCH, UESTC Spectralis 子集 | | |
| | Optovue | RTVue series | SD-OCT | ~122,000 | OCTA500 (120k), OCTDL (2k) | | |
| | Bioptigen | Bioptigen SD-OCT | SD-OCT | ~38,400 | AREDS2, Sparsity | | |
| | Zeiss | Cirrus (HD-OCT/4000/5000) | SD-OCT | ~12,000 | AROI, AMD-SD, OCTID, RETOUCH Cirrus, THOCT1800 | | |
| | Zeiss | Stratus | **TD-OCT** | 49 | Glaucoma_OCT (唯一 TD-OCT) | | |
| | Topi 国产 | BM-400K BMizar | SD-OCT | ~33,000 | UESTC BMizar 6×6 + 20×24 | | |
| | 未知 | | | ~80,000 | NYU_POAG (57k) + C8 (24k) | | |
| | GAMMA scanner | unspecified | — | 51,200 | GAMMA OCT volume slices | | |
| --- | |
| ## 6. 疾病覆盖 | |
| 按 OCT B-scan 数量粗算(含部分重叠数据集): | |
| | Disease 类别 | 总图像 | 主要来源 | | |
| |---|---:|---| | |
| | NORMAL | ~150,000+ | Kermany, NYU_POAG, AREDS2, C8, NEH_UT, Srinivasan, REFUGE2 train n | | |
| | DR (0-4) | ~150,000+ | EyePACS (143k), Messidor2, IDRiD, OLIVES, AREDS2 部分 | | |
| | AMD / nAMD / wet_AMD | ~80,000 | AREDS2, NEH_UT, AROI, AMD-SD, Srinivasan, OCTID, OCTDL, RETOUCH | | |
| | DME | ~80,000 | OLIVES, Kermany, Chiu, Srinivasan, THOCT1800, OCTDL | | |
| | POAG / Glaucoma | ~57,000 | NYU_POAG (57k), GAMMA, REFUGE2 train g, Glaucoma_OCT, Messidor2 | | |
| | CNV | ~44,000 | Kermany, NEH_UT, OCTID, OCTA500 | | |
| | DRUSEN | ~17,000 | Kermany, NEH_UT | | |
| | MH (含 stage 1-4) | ~8,000+ | OIMHS, OCTID, C8 | | |
| | CSR | ~3,000+ | OCTID, C8 | | |
| | ERM | ~155 | OCTDL | | |
| | RVO / RAO | ~150 | OCTDL, RETOUCH | | |
| | VID | ~76 | OCTDL | | |
| | 无标签 (unsupervised pretraining) | ~35,000+ | UESTC (35k) + OCTA500 未标记 100 vol + APTOS test | | |
| --- | |
| ## 7. 分割 mask 覆盖 | |
| | Mask 类型 | 张数 | 来源 | | |
| |---|---:|---| | |
| | OCT 多层 (10-layer in NPZ) | ~370,000 | 私有 Topcon(每 B-scan 一份 layer) | | |
| | OCT 8-layer + fluid | 610 | Chiu_DME_2015 | | |
| | OCT 层分割 (.tif) | 7,000+ | AROI (3k), OIMHS (3.9k), Glaucoma_OCT (49) | | |
| | OCT 病灶多类 (IRF/SRF/PED) | 6,936 | RETOUCH | | |
| | OCT 病灶 5 类 (SRF/IRF/PED/SHRM/ISOS) | 3,049 | AMD-SD | | |
| | OCT-A B-scan 6 类 mask | 119,600 | OCTA500 | | |
| | Fundus 血管 | 20 | DRIVE training | | |
| | Fundus disc/cup 3 类 | 2,400 | REFUGE2 (1200), GAMMA (200), IDRiD (516+81) | | |
| | Fundus 5 类病灶 (MA/HE/EX/SE) + OD | 81 | IDRiD segmentation | | |
| | **合计带 mask** | **~510,000+ 张** | | | |
| --- | |
| ## 8. 统一 41 列 manifest schema | |
| 三批数据严格对齐以下 41 列。训练侧 `pd.concat` 直接拼。 | |
| ``` | |
| cohort, study_id, patient_hash, visit_date, eye, | |
| device_vendor, device_model, device_serial_hash, device_software_version, | |
| hospital_domain, ethnicity, | |
| image_quality_score, image_quality_band, | |
| diagnosis_group, lesion_tags, lesion_location, layer_involvement, severity, | |
| diagnosis_source, label_confidence, schema_version, | |
| image_id, file_path, file_format, | |
| modality, anatomy, device_technology, scan_protocol, | |
| scan_x_mm, bscan_index, | |
| image_height_px, image_width_px, axial_resolution_um, | |
| has_segmentation, n_layers_visible, | |
| fovea_x_norm, crt_um, choroid_thickness_um, | |
| oct_footprint_bbox_fundus, oct_footprint_bbox_slo, | |
| is_valid | |
| ``` | |
| **受控值**: | |
| - `modality` ∈ {oct_bscan, fundus_color, slo_gray} | |
| - `anatomy` ∈ {macula, optic_disc, secondary_unknown} | |
| - `device_technology` ∈ {ss_oct, sd_oct, td_oct, fundus_camera, slo, unknown} | |
| - `severity` ∈ {none, mild, moderate, severe, proliferative, unknown} | |
| - `scan_protocol` 开值:{radial_12, single_shot, subscan_line, subscan_single_shot, volume_3d_macula, volume_3d_macula_6x6mm, volume_3d_macula_20x24mm, volume_3d_macula_spectralis} | |
| **Captions parquet 列**: | |
| ``` | |
| caption_id, image_id, level, prompt_text, language, generator, grounded_in | |
| ``` | |
| 每图固定 5 条 caption: | |
| - `L1_v1_factual` / `L1_v2_style` / `L1_v3_prefix` / `L1_v4_short`(全 manifest 字段衍生) | |
| - `L3_derived`(含几何/分割附加信息,私有数据集含 CRT/choroid thickness/quality score) | |
| --- | |
| ## 9. 训练侧路径映射 | |
| 每个 manifest 自带 `cohort` 列;`file_path` 是相对路径,需要拼 `extracted_root`: | |
| | Manifest parquet | extracted_root | | |
| |---|---| | |
| | `Data/Generation1/private_topcon/manifest/images_v1.parquet` | `Data/Generation1/private_topcon/extracted/shanghai_drioct_triton/` | | |
| | `public_eye_pretrain/manifest/public_images_v1.parquet` | `public_eye_pretrain/extracted/` | | |
| | (待上传) `oct_public_pretrain/manifest/oct_public_images_v1.parquet` | `oct_public_pretrain/extracted/` | | |
| **注意**:私有的 `file_path` 不带 cohort 前缀(如 `00/abc.../bscan_radial/000.png`);两个公开的 `file_path` 带 cohort 前缀(如 `public_oct_kermany/00/abc.../bscan.png`)。训练侧根据 manifest 来源选择对应 root。 | |
| --- | |
| ## 10. Code / Scripts 索引 | |
| 本地代码仓库:`/home/richard/Documents/Code/ZJU/Dataset/` | |
| | 模块 | 用途 | | |
| |---|---| | |
| | `public_common.py` | 41 列 schema + caption_l1_public + study_hash 命名空间 + IO helpers | | |
| | `oct_public_common.py` | OCT caption_l1_oct + 多 slice/study 共享 worker | | |
| | `extract_fda.py` | 私有 Topcon FDA → bscan/fundus/slo/seg/meta.json | | |
| | `extract_subscan.py` | 私有 sub-scan @SUB_* chunks 提取 | | |
| | `build_manifest.py` | 私有 meta.json → 41 列 parquet + captions | | |
| | `adapter_drive.py` ... `adapter_gamma.py` | 6 个公开 fundus adapter | | |
| | `build_public_manifest.py` | concat 公开 fundus 6 parquet → 统一 | | |
| | `build_oct_public.py` | 19 个公开 OCT 数据集统一处理 | | |
| | `build_oct_public_manifest.py` | concat 公开 OCT 19 parquet → 统一 | | |
| | `run.sh` | 三批数据完整流水线命令(顺序执行) | | |
| | `fixup_errors.sh` | 私有数据集 sub-scan 错误重试脚本 | | |
| | `pack.sh` / `unpack.sh` (各两份) | 私有 + OCT public 打包/解包 | | |
| | `INTEGRATION_GUIDE.md` | 公开 fundus 数据集接入手册(如何写新 adapter) | | |
| --- | |
| ## 11. 进度状态 | |
| | 任务 | 状态 | | |
| |---|---| | |
| | 私有 Topcon 处理 | ✅ 完成 | | |
| | 私有 Topcon 打包 (153 GB) | ✅ 完成 | | |
| | 私有 Topcon 上传 h800 | ✅ 完成(含 bucket_2b 重传) | | |
| | 私有 Topcon 解包 (Data/Generation1/private_topcon/) | ✅ 完成,Python 验证全通过 | | |
| | 公开 fundus 处理 + manifest (h800) | ✅ 完成 | | |
| | 公开 OCT 19 cohort 处理 (本地) | ✅ 完成 | | |
| | 公开 OCT 统一 manifest | ✅ 完成 (488,705 images) | | |
| | 公开 OCT 打包 (1,725 tar / 119 GB) | ✅ 完成 | | |
| | 公开 OCT 上传 h800 | ⏸ 等你启动 | | |
| | 训练侧三 parquet 拼接 | ⏸ 后续 | | |
| --- | |
| ## 12. 训练侧使用指南(核心) | |
| ### 12.1 数据加载的三个 manifest + 三个 root | |
| 训练 dataloader 要同时读这三份 parquet,**41 列 schema 完全一致,直接 `pd.concat`**: | |
| | Source | Manifest parquet | extracted_root (拼 `file_path` 用) | | |
| |---|---|---| | |
| | 私有 Topcon | `Data/Generation1/private_topcon/manifest/images_v1.parquet` | `Data/Generation1/private_topcon/extracted/shanghai_drioct_triton/` | | |
| | 公开 fundus | `public_eye_pretrain/manifest/public_images_v1.parquet` | `public_eye_pretrain/extracted/` | | |
| | 公开 OCT | `oct_public_pretrain/manifest/oct_public_images_v1.parquet` | `oct_public_pretrain/extracted/` | | |
| **关键差异**:私有的 `file_path` 不带 cohort 前缀(如 `00/abc.../bscan_radial/000.png`),两个公开的 `file_path` 带 cohort 前缀(如 `public_oct_kermany/00/abc.../bscan.png`)。因此 dataloader 必须根据每行的 `cohort` 字段选对应 root。 | |
| ### 12.2 拼接示例代码 | |
| ```python | |
| import pandas as pd | |
| from pathlib import Path | |
| ROOTS = { | |
| # cohort → extracted_root | |
| "shanghai_drioct_triton": "/mnt/tidal-alsh-share2/.../Data/Generation1/private_topcon/extracted/shanghai_drioct_triton", | |
| # 所有 public_* cohort 共享一个父根 | |
| "_public_fundus_": "/mnt/tidal-alsh-share2/.../public_eye_pretrain/extracted", | |
| "_public_oct_": "/mnt/tidal-alsh-share2/.../oct_public_pretrain/extracted", | |
| } | |
| def resolve(row): | |
| c = row["cohort"] | |
| if c == "shanghai_drioct_triton": | |
| return Path(ROOTS["shanghai_drioct_triton"]) / row["file_path"] | |
| elif c.startswith("public_oct_"): | |
| return Path(ROOTS["_public_oct_"]) / row["file_path"] # file_path 已含 cohort 前缀 | |
| else: # public_drive_vessel / public_messidor2_dr / ... | |
| return Path(ROOTS["_public_fundus_"]) / row["file_path"] | |
| df_priv = pd.read_parquet("Data/Generation1/private_topcon/manifest/images_v1.parquet") | |
| df_fun = pd.read_parquet("public_eye_pretrain/manifest/public_images_v1.parquet") | |
| df_oct = pd.read_parquet("oct_public_pretrain/manifest/oct_public_images_v1.parquet") | |
| manifest = pd.concat([df_priv, df_fun, df_oct], ignore_index=True) | |
| manifest["abs_path"] = manifest.apply(resolve, axis=1) | |
| # ~ 1.1M rows, 42 columns | |
| ``` | |
| Captions 同理: | |
| ```python | |
| caps_priv = pd.read_parquet("Data/Generation1/private_topcon/captions/captions_v1.parquet") | |
| caps_fun = pd.read_parquet("public_eye_pretrain/captions/public_captions_v1.parquet") | |
| caps_oct = pd.read_parquet("oct_public_pretrain/captions/oct_public_captions_v1.parquet") | |
| captions = pd.concat([caps_priv, caps_fun, caps_oct], ignore_index=True) | |
| # ~ 5.5M rows; image_id 关联到 manifest.image_id | |
| ``` | |
| ### 12.3 PyTorch Dataset 模板 | |
| ```python | |
| import torch | |
| from torch.utils.data import Dataset | |
| from PIL import Image | |
| import random | |
| class EyePretrainDataset(Dataset): | |
| def __init__(self, manifest_df, captions_df, modality=None, transform=None, | |
| caption_level="L1_v1_factual"): | |
| if modality: | |
| manifest_df = manifest_df[manifest_df.modality.isin(modality)] | |
| self.df = manifest_df.reset_index(drop=True) | |
| # caption_level: L1_v1_factual / L1_v2_style / L1_v3_prefix / L1_v4_short / L3_derived / random | |
| cap_sub = (captions_df if caption_level == "random" | |
| else captions_df[captions_df.level == caption_level]) | |
| self.caps = cap_sub.groupby("image_id")["prompt_text"].apply(list).to_dict() | |
| self.caption_level = caption_level | |
| self.transform = transform | |
| def __len__(self): return len(self.df) | |
| def __getitem__(self, i): | |
| r = self.df.iloc[i] | |
| img = Image.open(r["abs_path"]).convert("RGB" if r["modality"] == "fundus_color" else "L") | |
| if self.transform: img = self.transform(img) | |
| caps = self.caps.get(r["image_id"], [""]) | |
| text = random.choice(caps) if self.caption_level == "random" else caps[0] | |
| return { | |
| "image": img, "text": text, | |
| "cohort": r["cohort"], "modality": r["modality"], | |
| "anatomy": r["anatomy"], "severity": r["severity"], | |
| "diagnosis_group": list(r["diagnosis_group"]), | |
| "bscan_index": r["bscan_index"], | |
| "has_segmentation": r["has_segmentation"], | |
| "image_id": r["image_id"], "study_id": r["study_id"], | |
| "patient_hash": r["patient_hash"], | |
| } | |
| ``` | |
| ### 12.4 切分策略:**患者级 split**(防泄漏) | |
| > ⚠️ 不要按行(image)随机切 train/val/test —— 同一患者的多张 B-scan 会跨 split 泄漏。 | |
| ```python | |
| import numpy as np | |
| rng = np.random.default_rng(42) | |
| patients = manifest["patient_hash"].unique() | |
| rng.shuffle(patients) | |
| n = len(patients) | |
| train_p = set(patients[:int(0.9*n)]) | |
| val_p = set(patients[int(0.9*n):int(0.95*n)]) | |
| test_p = set(patients[int(0.95*n):]) | |
| manifest["split"] = manifest.patient_hash.map( | |
| lambda p: "train" if p in train_p else ("val" if p in val_p else "test")) | |
| ``` | |
| **说明**: | |
| - 私有 Topcon:`patient_hash = study_hash`,每个 FDA 一个匿名患者,等价 file-level | |
| - 公开 fundus:多数 cohort 也是 file-level(无 patient_id),少数(OLIVES、IDRiD grading、GAMMA)有真实 patient 共享 | |
| - 公开 OCT:Kermany(CNV-NNN-XXX 中段 = patient_id)、NEH_UT、OCTDL 有 patient_id;OLIVES `patient_hash` 跨 visit 一致 | |
| - 安全做法:永远按 `patient_hash` 切,cohort-level 也保留这套切分 | |
| ### 12.5 三种典型训练任务的数据组合 | |
| #### (A) 纯无监督生成式预训练(VAE / diffusion / MAE) | |
| ```python | |
| # 用全部 ~1.1M 张图像,不需要 label | |
| ds = EyePretrainDataset(manifest, captions, modality=None, | |
| caption_level="random") | |
| # 或单模态预训练: | |
| ds_oct = EyePretrainDataset(manifest, captions, | |
| modality=["oct_bscan"]) # ~892k 张 | |
| ds_fun = EyePretrainDataset(manifest, captions, | |
| modality=["fundus_color"]) # ~178k 张 | |
| ``` | |
| #### (B) Caption-conditioned 生成(Stable Diffusion 风格) | |
| ```python | |
| # 用 L1 4 个变体做 caption augmentation, L3 做精细条件 | |
| ds = EyePretrainDataset(manifest, captions, | |
| modality=["oct_bscan", "fundus_color"], | |
| caption_level="random") # 每 epoch 随机挑一个变体 | |
| ``` | |
| L3_derived 包含具体几何/分割附加信息(私有 OCT 含 CRT、choroidal thickness、quality;公开 OCT 含 mask 类别说明)。如果要训练 **disease-aware** 生成器,建议把 `severity` / `diagnosis_group` 作为额外离散条件 embed。 | |
| #### (C) 多模态 / cross-modality 生成(fundus → OCT B-scan、SLO → OCT) | |
| ```python | |
| # 按 study_id 分组,挑出同一 study 内多模态配对 | |
| groups = manifest.groupby("study_id") | |
| multimodal_studies = [] | |
| for sid, g in groups: | |
| mods = set(g["modality"]) | |
| if "oct_bscan" in mods and "fundus_color" in mods: | |
| multimodal_studies.append(sid) | |
| # 主要来源: | |
| # 私有 Topcon 30k study (含 fundus+SLO+12 radial OCT) | |
| # GAMMA 200 sample (含 fundus + 256 OCT) | |
| # 配上 oct_footprint_bbox_fundus / oct_footprint_bbox_slo 做空间对齐 | |
| ``` | |
| ### 12.6 实操采样建议 | |
| **Cohort 不均衡极严重**(最大 Kermany 109k vs 最小 Sparsity 17,差 6400 倍)。直接均匀采样会被大 cohort 主导。常见做法: | |
| ```python | |
| # 按 cohort 加权采样(每 cohort 等概率) | |
| from torch.utils.data import WeightedRandomSampler | |
| cohort_counts = manifest.cohort.value_counts() | |
| weights = (1.0 / cohort_counts[manifest.cohort]).values | |
| sampler = WeightedRandomSampler(weights, num_samples=len(manifest), replacement=True) | |
| loader = DataLoader(ds, sampler=sampler, batch_size=64, num_workers=8) | |
| ``` | |
| 或更激进的 **modality-balanced**(每 batch 内 50% OCT / 50% fundus): | |
| ```python | |
| # 分两个 dataset, 用 ConcatDataset + RandomSampler 各 50% | |
| ``` | |
| ### 12.7 OCT B-scan 几何条件(私有 + GAMMA + OCTA500 等 volume) | |
| 私有 Topcon 12 radial 协议固定: | |
| ```python | |
| angle_deg = bscan_index * 15.0 # 0°, 15°, ..., 165° | |
| ``` | |
| 可作为 angle conditioning embedding 输入。对私有 OCT B-scan 行: | |
| ```python | |
| # manifest 已有 fovea_x_norm (B-scan 列方向归一化 fovea 位置 0.0-1.0) | |
| # 可作 position embedding | |
| ``` | |
| 对 GAMMA / OCTA500 的 volume slice:`bscan_index` 是 slice 序号(0..255 或 0..399),可做 axial position embedding。 | |
| ### 12.8 三模态 spatial 配准(私有 Topcon) | |
| 每个私有 study 的 fundus / SLO 行 manifest 含: | |
| - `oct_footprint_bbox_fundus` (x0,y0,x1,y1) | |
| - `oct_footprint_bbox_slo` | |
| 12 radial B-scan **没有 per-bscan endpoints** 字段,但可推算(见 §1.3 angle conditioning 说明)。 | |
| 适合用于 **ControlNet-style position embedding** / **共享空间坐标的 cross-attention**;不适合像素级 dense supervision(无 dense warp)。 | |
| ### 12.9 常用过滤组合速查 | |
| | 目标 | 过滤 | | |
| |---|---| | |
| | 仅 OCT B-scan(生成式预训练 OCT) | `modality == "oct_bscan"` → ~892k | | |
| | 仅 fundus_color | `modality == "fundus_color"` → ~178k | | |
| | 仅黄斑中心 OCT | `modality == "oct_bscan" & anatomy == "macula"` | | |
| | 仅视盘 OCT | `modality == "oct_bscan" & anatomy == "optic_disc"` | | |
| | 仅 SS-OCT(私有 Topcon) | `device_technology == "ss_oct"` → 374k | | |
| | 仅 SD-OCT(剔除 TD-OCT 49 张) | `device_technology == "sd_oct"` | | |
| | 仅带 mask(监督分割 / mask-conditioned 生成) | `has_segmentation == True` → ~510k | | |
| | 仅有疾病 grade(弱监督) | `severity in ['mild','moderate','severe','proliferative']` | | |
| | 排除质量差 | `image_quality_band not in ['poor', 'ungradable']`(仅私有有质量分) | | |
| ### 12.10 推荐起步配置 | |
| | 训练目标 | 数据 | Caption level | Conditions | | |
| |---|---|---|---| | |
| | OCT VAE / MAE 预训练 | OCT 全集 892k | L1 random | cohort, modality, device_technology | | |
| | Fundus diffusion 预训练 | Fundus 全集 178k | L1 random | cohort, severity, eye | | |
| | Multi-modal (fundus → OCT) | 私有 30k + GAMMA 200 study 配对 | L3_derived | bbox + bscan_index | | |
| | Disease-conditional gen | 全集 + diagnosis_group ≠ [] 子集 | L3_derived | severity + diagnosis_group multi-hot | | |
| | Few-shot rare disease (Stargardt / RP / MacTel / RAO / VID) | 公开 OCTDL + IDRiD + (未来)dataset 2 | L3 | diagnosis_group | | |
| ### 12.11 注意事项 & 已知坑 | |
| 1. **私有数据是 SS-OCT,公开多是 SD-OCT** —— 域差异(波长 1050 vs 840nm,脉络膜可见度不同)。生成模型若混训,建议把 `device_technology` 作为强条件 embed。 | |
| 2. **OCTA500 mask 6 类 vs RETOUCH IRF/SRF/PED 3 类 vs AMD-SD 5 类** —— mask 像素值定义跨数据集**不统一**,需要单独建立 cohort-aware mask encoder 或先做 label 标准化。 | |
| 3. **Caption 中 cohort 名称会暴露 cohort 标签** —— 如果要做 cohort-invariant 表示学习,需要 caption 改写去掉 cohort phrase(或加 cohort dropout)。 | |
| 4. **OLIVES 同患者纵向数据** —— 若做 time-series 任务可按 `(patient, eye)` group + `study_meta.visit`(写在 meta.json `study_meta.visit` 但未进 41 列;可读 OLIVES sidecar 或解析 study_basename)。 | |
| 5. **私有 quality score 仅在私有 cohort 有**(公开 image_quality_band 一律 `unknown`),按 quality 加权采样时只对私有生效。 | |
| 6. **REFUGE2 val/test、APTOS test、OCTA500 100 vol** —— `severity=unknown`,按 `severity` 筛要小心。 | |
| 7. **GAMMA OCT 切片是模拟"私有 radial" 的角度替代**:GAMMA OCT 是 volume_3d_macula 256 slices(线性平行扫描),不是 radial。`bscan_index` 语义不同。 | |
| 8. **路径含中文 + 空格**(私有 `/mnt/synology/08.数据/` + 公开 OCT `/mnt/new/OCT Retinal B-scan数据集汇总/`),bash 一定要加双引号,Python `Path` 直接吞。 | |