diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8639206
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+test/
+Log/
+.vscode/
+camera_params.json
+**.pyc**
\ No newline at end of file
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..c0b5758
--- /dev/null
+++ b/main.py
@@ -0,0 +1,831 @@
+#!/usr/bin/env python3
+"""
+Orbbec 数据采集 GUI
+- 启动时选择彩色 / 深度分辨率
+- 数据采集：实时预览 + 一键拍照（RGB / IR / 深度 / D2C深度 / 点云）
+- Orbbec Viewer 深度图 D2C：批量软件 D2C 转换
+"""
+
+import os
+import sys
+import json
+import time
+import threading
+import contextlib
+import io
+import numpy as np
+import cv2
+from pathlib import Path
+from datetime import datetime
+
+# 确保 utils.py 可被 import
+sys.path.insert(0, str(Path(__file__).parent))
+
+from PyQt5.QtWidgets import (
+    QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout,
+    QLabel, QPushButton, QLineEdit, QCheckBox, QTabWidget,
+    QComboBox, QDialog, QDialogButtonBox, QGroupBox, QFileDialog,
+    QTextEdit, QFrame, QMessageBox, QSizePolicy,
+)
+from PyQt5.QtCore import Qt, QThread, pyqtSignal, QTimer
+from PyQt5.QtGui import QImage, QPixmap, QFont
+
+from d2c_batch import batch_convert
+
+DATA_DIR = Path("data")
+PARAMS_FILE = "camera_params.json"
+MIN_DEPTH_MM = 200
+MAX_DEPTH_MM = 5000
+
+
+# ─────────────────────────────────────────────────────────────────
+#  Helpers
+# ─────────────────────────────────────────────────────────────────
+
+def ndarray_to_pixmap(img_bgr: np.ndarray, max_w: int, max_h: int) -> QPixmap:
+    """BGR numpy array → scaled QPixmap."""
+    if img_bgr is None or img_bgr.size == 0:
+        return QPixmap()
+    h, w = img_bgr.shape[:2]
+    scale = min(max_w / max(w, 1), max_h / max(h, 1), 1.0)
+    if scale < 1.0:
+        img_bgr = cv2.resize(img_bgr, (int(w * scale), int(h * scale)),
+                             interpolation=cv2.INTER_AREA)
+    rgb = cv2.cvtColor(img_bgr, cv2.COLOR_BGR2RGB)
+    rh, rw = rgb.shape[:2]
+    qimg = QImage(rgb.data.tobytes(), rw, rh, rw * 3, QImage.Format_RGB888)
+    return QPixmap.fromImage(qimg)
+
+
+def depth_to_vis(depth_uint16: np.ndarray, scale: float) -> np.ndarray:
+    """uint16 深度图 → JET 伪彩 BGR 图（无效像素为黑色）。"""
+    depth_mm = depth_uint16.astype(np.float32) * scale
+    norm = np.clip((depth_mm - MIN_DEPTH_MM) / (MAX_DEPTH_MM - MIN_DEPTH_MM), 0.0, 1.0)
+    gray = (norm * 255).astype(np.uint8)
+    vis = cv2.applyColorMap(gray, cv2.COLORMAP_JET)
+    vis[depth_uint16 == 0] = 0
+    return vis
+
+
+def process_ir_frame(ir_frame) -> np.ndarray | None:
+    """IR frame → 8-bit BGR 图像。"""
+    if ir_frame is None:
+        return None
+    try:
+        from pyorbbecsdk import OBFormat
+        vf = ir_frame.as_video_frame()
+        data = np.asanyarray(vf.get_data())
+        w, h, fmt = vf.get_width(), vf.get_height(), vf.get_format()
+        if fmt == OBFormat.Y8:
+            arr = np.resize(data, (h, w)).astype(np.uint8)
+        elif fmt == OBFormat.MJPG:
+            arr = cv2.imdecode(data, cv2.IMREAD_GRAYSCALE)
+            if arr is None:
+                return None
+        else:
+            arr = np.frombuffer(data, dtype=np.uint16).reshape(h, w)
+            arr = cv2.normalize(arr, None, 0, 255, cv2.NORM_MINMAX).astype(np.uint8)
+        return cv2.cvtColor(arr, cv2.COLOR_GRAY2BGR)
+    except Exception:
+        return None
+
+
+# ─────────────────────────────────────────────────────────────────
+#  Profile Selection Dialog
+# ─────────────────────────────────────────────────────────────────
+
+class ProfileDialog(QDialog):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.setWindowTitle("选择分辨率")
+        self.setMinimumWidth(540)
+        self.pipeline = None
+        self.color_profiles: list = []
+        self.depth_profiles: list = []
+        self.selected_color = None
+        self.selected_depth = None
+        self._build_ui()
+        self._load_profiles()
+
+    def _build_ui(self):
+        layout = QVBoxLayout(self)
+        layout.setSpacing(14)
+
+        grp_c = QGroupBox("彩色 (RGB) 分辨率")
+        lc = QVBoxLayout(grp_c)
+        self.color_combo = QComboBox()
+        lc.addWidget(self.color_combo)
+        layout.addWidget(grp_c)
+
+        grp_d = QGroupBox("深度分辨率")
+        ld = QVBoxLayout(grp_d)
+        self.depth_combo = QComboBox()
+        ld.addWidget(self.depth_combo)
+        layout.addWidget(grp_d)
+
+        self.status_lbl = QLabel("正在连接相机，请稍候…")
+        self.status_lbl.setAlignment(Qt.AlignCenter)
+        layout.addWidget(self.status_lbl)
+
+        btns = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel)
+        btns.accepted.connect(self._on_ok)
+        btns.rejected.connect(self.reject)
+        layout.addWidget(btns)
+
+    def _load_profiles(self):
+        try:
+            from pyorbbecsdk import Pipeline, OBSensorType
+            self.pipeline = Pipeline()
+
+            color_list = self.pipeline.get_stream_profile_list(OBSensorType.COLOR_SENSOR)
+            for i in range(color_list.get_count()):
+                p = color_list.get_stream_profile_by_index(i)
+                vp = p.as_video_stream_profile()
+                if vp is None:
+                    continue
+                fmt = str(vp.get_format()).split(".")[-1]
+                self.color_combo.addItem(
+                    f"{vp.get_width()}×{vp.get_height()} @ {vp.get_fps()} fps  [{fmt}]")
+                self.color_profiles.append(vp)
+
+            depth_list = self.pipeline.get_stream_profile_list(OBSensorType.DEPTH_SENSOR)
+            for i in range(depth_list.get_count()):
+                p = depth_list.get_stream_profile_by_index(i)
+                vp = p.as_video_stream_profile()
+                if vp is None:
+                    continue
+                fmt = str(vp.get_format()).split(".")[-1]
+                self.depth_combo.addItem(
+                    f"{vp.get_width()}×{vp.get_height()} @ {vp.get_fps()} fps  [{fmt}]")
+                self.depth_profiles.append(vp)
+
+            self.status_lbl.setText(
+                f"已找到  {len(self.color_profiles)} 个彩色配置，"
+                f"{len(self.depth_profiles)} 个深度配置")
+        except Exception as exc:
+            self.status_lbl.setText(f"相机连接失败：{exc}")
+
+    def _on_ok(self):
+        if not self.color_profiles or not self.depth_profiles:
+            QMessageBox.warning(self, "错误", "没有可用的相机配置，请检查设备连接。")
+            return
+        self.selected_color = self.color_profiles[self.color_combo.currentIndex()]
+        self.selected_depth = self.depth_profiles[self.depth_combo.currentIndex()]
+        self.accept()
+
+
+# ─────────────────────────────────────────────────────────────────
+#  Camera Worker Thread
+# ─────────────────────────────────────────────────────────────────
+
+class CameraWorker(QThread):
+    preview_ready  = pyqtSignal(object, object)   # color_bgr, depth_vis
+    capture_done   = pyqtSignal(str)              # save_dir
+    params_ready   = pyqtSignal(dict)
+    log_msg        = pyqtSignal(str)
+
+    def __init__(self, pipeline, color_profile, depth_profile):
+        super().__init__()
+        self._pipeline       = pipeline
+        self._color_profile  = color_profile
+        self._depth_profile  = depth_profile
+        self._lock           = threading.Lock()
+        self._running        = True
+        self._d2c            = False
+        self._do_capture     = False
+        self._capture_dir    = ""
+        self._camera_params  = None
+        self._has_dual_ir    = False
+        self._last_emit_ts   = 0.0
+
+    # ── Public controls ──
+
+    def set_d2c(self, enabled: bool):
+        with self._lock:
+            self._d2c = enabled
+
+    def trigger_capture(self, save_dir: str):
+        with self._lock:
+            self._capture_dir = save_dir
+            self._do_capture  = True
+
+    def stop(self):
+        self._running = False
+        self.wait(6000)
+
+    # ── Thread body ──
+
+    def run(self):
+        try:
+            from pyorbbecsdk import (
+                Config, AlignFilter, PointCloudFilter,
+                OBStreamType, OBSensorType, OBFrameType, OBFormat,
+                save_point_cloud_to_ply,
+            )
+            from utils import frame_to_bgr_image
+        except ImportError as exc:
+            self.log_msg.emit(f"导入 pyorbbecsdk 失败：{exc}")
+            return
+
+        config = Config()
+        config.enable_stream(self._color_profile)
+        config.enable_stream(self._depth_profile)
+
+        # 探测 IR 传感器类型
+        try:
+            device      = self._pipeline.get_device()
+            sensor_list = device.get_sensor_list()
+            for i in range(len(sensor_list)):
+                st = sensor_list[i].get_type()
+                if st in (OBSensorType.LEFT_IR_SENSOR, OBSensorType.RIGHT_IR_SENSOR):
+                    self._has_dual_ir = True
+            if self._has_dual_ir:
+                config.enable_video_stream(OBSensorType.LEFT_IR_SENSOR)
+                config.enable_video_stream(OBSensorType.RIGHT_IR_SENSOR)
+            else:
+                config.enable_video_stream(OBSensorType.IR_SENSOR)
+        except Exception as exc:
+            self.log_msg.emit(f"IR 传感器初始化警告：{exc}")
+
+        try:
+            self._pipeline.start(config)
+        except Exception as exc:
+            self.log_msg.emit(f"Pipeline 启动失败：{exc}")
+            return
+
+        align_filter       = AlignFilter(align_to_stream=OBStreamType.COLOR_STREAM)
+        point_cloud_filter = PointCloudFilter()
+
+        while self._running:
+            try:
+                frames = self._pipeline.wait_for_frames(500)
+                if frames is None:
+                    continue
+
+                with self._lock:
+                    d2c       = self._d2c
+                    do_cap    = self._do_capture
+                    cap_dir   = self._capture_dir
+                    if do_cap:
+                        self._do_capture = False
+
+                # 首帧提取相机参数
+                if self._camera_params is None:
+                    cf = frames.get_color_frame()
+                    df = frames.get_depth_frame()
+                    if cf and df:
+                        try:
+                            self._camera_params = self._extract_params(cf, df)
+                            self.params_ready.emit(self._camera_params)
+                        except Exception:
+                            pass
+
+                # 执行拍照
+                if do_cap and cap_dir:
+                    try:
+                        self._run_capture(
+                            frames, cap_dir,
+                            align_filter, point_cloud_filter,
+                            frame_to_bgr_image, save_point_cloud_to_ply,
+                            OBFrameType, OBFormat,
+                        )
+                    except Exception as exc:
+                        self.log_msg.emit(f"拍照错误：{exc}")
+                    continue
+
+                # ── 预览 ──
+                view_frames = frames
+                if d2c:
+                    af = align_filter.process(frames)
+                    if af:
+                        view_frames = af.as_frame_set()
+
+                cf = view_frames.get_color_frame()
+                df = view_frames.get_depth_frame()
+                if not cf or not df:
+                    continue
+
+                color_bgr = frame_to_bgr_image(cf)
+                if color_bgr is None:
+                    continue
+
+                depth_data = np.frombuffer(df.get_data(), dtype=np.uint16).reshape(
+                    df.get_height(), df.get_width())
+                depth_vis = depth_to_vis(depth_data, df.get_depth_scale())
+
+                # 限制发射帧率 ~30 fps
+                now = time.monotonic()
+                if now - self._last_emit_ts >= 0.033:
+                    self._last_emit_ts = now
+                    self.preview_ready.emit(color_bgr.copy(), depth_vis.copy())
+
+            except Exception as exc:
+                if self._running:
+                    self.log_msg.emit(f"相机错误：{exc}")
+                    time.sleep(0.1)
+
+        try:
+            self._pipeline.stop()
+        except Exception:
+            pass
+
+    # ── Capture helper ──
+
+    def _run_capture(self, frames, save_dir,
+                     align_filter, point_cloud_filter,
+                     frame_to_bgr_image, save_point_cloud_to_ply,
+                     OBFrameType, OBFormat):
+        Path(save_dir).mkdir(parents=True, exist_ok=True)
+
+        cf = frames.get_color_frame()
+        df = frames.get_depth_frame()
+
+        # ① 彩色图
+        if cf:
+            bgr = frame_to_bgr_image(cf)
+            if bgr is not None:
+                cv2.imwrite(str(Path(save_dir) / "color.png"), bgr)
+
+        # ② 红外图
+        if self._has_dual_ir:
+            lir = frames.get_frame(OBFrameType.LEFT_IR_FRAME)
+            rir = frames.get_frame(OBFrameType.RIGHT_IR_FRAME)
+            img = process_ir_frame(lir)
+            if img is not None:
+                cv2.imwrite(str(Path(save_dir) / "ir_left.png"), img)
+            img = process_ir_frame(rir)
+            if img is not None:
+                cv2.imwrite(str(Path(save_dir) / "ir_right.png"), img)
+        else:
+            ir = frames.get_frame(OBFrameType.IR_FRAME)
+            img = process_ir_frame(ir)
+            if img is not None:
+                cv2.imwrite(str(Path(save_dir) / "ir.png"), img)
+
+        # ③ 原始深度图
+        if df:
+            raw = np.frombuffer(df.get_data(), dtype=np.uint16).reshape(
+                df.get_height(), df.get_width())
+            cv2.imwrite(str(Path(save_dir) / "depth.png"), raw)
+
+        # ④ D2C 深度图 + 伪彩 + 点云
+        aligned = align_filter.process(frames)
+        if aligned:
+            aset = aligned.as_frame_set()
+            adf  = aset.get_depth_frame()
+            if adf:
+                ad = np.frombuffer(adf.get_data(), dtype=np.uint16).reshape(
+                    adf.get_height(), adf.get_width())
+                cv2.imwrite(str(Path(save_dir) / "depth_d2c.png"), ad)
+                vis = depth_to_vis(ad, adf.get_depth_scale())
+                cv2.imwrite(str(Path(save_dir) / "depth_d2c_vis.png"), vis)
+
+            try:
+                point_cloud_filter.set_create_point_format(OBFormat.POINT)
+                pc = point_cloud_filter.process(aligned)
+                if pc:
+                    save_point_cloud_to_ply(str(Path(save_dir) / "point_cloud.ply"), pc)
+            except Exception as exc:
+                self.log_msg.emit(f"点云警告：{exc}")
+
+            try:
+                point_cloud_filter.set_create_point_format(OBFormat.RGB_POINT)
+                pc = point_cloud_filter.process(aligned)
+                if pc:
+                    save_point_cloud_to_ply(str(Path(save_dir) / "point_cloud_color.ply"), pc)
+            except Exception as exc:
+                self.log_msg.emit(f"彩色点云警告：{exc}")
+
+        # ⑤ 相机参数
+        if self._camera_params:
+            with open(str(Path(save_dir) / "camera_params.json"), "w") as fh:
+                json.dump(self._camera_params, fh, indent=2)
+
+        self.capture_done.emit(save_dir)
+
+    # ── Static helpers ──
+
+    @staticmethod
+    def _extract_params(color_frame, depth_frame) -> dict:
+        cvp = color_frame.get_stream_profile().as_video_stream_profile()
+        dvp = depth_frame.get_stream_profile().as_video_stream_profile()
+
+        def intr(i):
+            return {"fx": float(i.fx), "fy": float(i.fy),
+                    "cx": float(i.cx), "cy": float(i.cy),
+                    "width": int(i.width), "height": int(i.height)}
+
+        def dist(d):
+            return {"k1": float(d.k1), "k2": float(d.k2),
+                    "k3": float(d.k3), "k4": float(d.k4),
+                    "k5": float(d.k5), "k6": float(d.k6),
+                    "p1": float(d.p1), "p2": float(d.p2)}
+
+        ext = dvp.get_extrinsic_to(cvp)
+        return {
+            "color": {
+                "width":  color_frame.get_width(),
+                "height": color_frame.get_height(),
+                "fps":    cvp.get_fps(),
+                "format": str(cvp.get_format()).split(".")[-1],
+                "intrinsic":  intr(cvp.get_intrinsic()),
+                "distortion": dist(cvp.get_distortion()),
+            },
+            "depth": {
+                "width":  depth_frame.get_width(),
+                "height": depth_frame.get_height(),
+                "fps":    dvp.get_fps(),
+                "format": str(dvp.get_format()).split(".")[-1],
+                "scale":  float(depth_frame.get_depth_scale()),
+                "intrinsic":  intr(dvp.get_intrinsic()),
+                "distortion": dist(dvp.get_distortion()),
+            },
+            "extrinsic": {
+                "rot":       ext.rot.tolist(),
+                "transform": ext.transform.tolist(),
+            },
+        }
+
+
+# ─────────────────────────────────────────────────────────────────
+#  Batch D2C Worker Thread
+# ─────────────────────────────────────────────────────────────────
+
+class BatchD2CWorker(QThread):
+    log  = pyqtSignal(str)
+    done = pyqtSignal()
+
+    def __init__(self, params: dict, depth_dir: str):
+        super().__init__()
+        self._params    = params
+        self._depth_dir = depth_dir
+
+    def run(self):
+        class _LineCapture(io.StringIO):
+            def __init__(self, sig):
+                super().__init__()
+                self._sig = sig
+            def write(self, s):
+                for line in s.splitlines():
+                    if line.strip():
+                        self._sig.emit(line)
+
+        cap = _LineCapture(self.log)
+        with contextlib.redirect_stdout(cap):
+            try:
+                batch_convert(self._params, self._depth_dir)
+            except Exception as exc:
+                self.log.emit(f"Error: {exc}")
+        self.done.emit()
+
+
+# ─────────────────────────────────────────────────────────────────
+#  Main Window
+# ─────────────────────────────────────────────────────────────────
+
+class MainWindow(QMainWindow):
+    def __init__(self, pipeline, color_profile, depth_profile):
+        super().__init__()
+        self.setWindowTitle("Orbbec 数据采集 & D2C")
+        self.resize(1300, 820)
+
+        self._session_dir: Path | None = None
+        self._batch_worker: BatchD2CWorker | None = None
+
+        self._worker = CameraWorker(pipeline, color_profile, depth_profile)
+        self._worker.preview_ready.connect(self._update_preview)
+        self._worker.capture_done.connect(self._on_capture_done)
+        self._worker.params_ready.connect(self._on_params_ready)
+        self._worker.log_msg.connect(self._append_log)
+
+        self._build_ui()
+        self._worker.start()
+
+    # ── UI construction ──
+
+    def _build_ui(self):
+        central = QWidget()
+        self.setCentralWidget(central)
+        root = QVBoxLayout(central)
+        root.setContentsMargins(0, 0, 0, 0)
+        root.setSpacing(0)
+
+        tabs = QTabWidget()
+        tabs.addTab(self._build_capture_tab(), "  数据采集  ")
+        tabs.addTab(self._build_d2c_tab(),     "  Orbbec Viewer 深度图 D2C  ")
+        root.addWidget(tabs)
+
+    def _build_capture_tab(self) -> QWidget:
+        w = QWidget()
+        layout = QVBoxLayout(w)
+        layout.setContentsMargins(12, 10, 12, 10)
+        layout.setSpacing(8)
+
+        # ── 顶部控制行 ──
+        ctrl = QHBoxLayout()
+
+        ctrl.addWidget(QLabel("保存目录名称："))
+        today = datetime.now()
+        default_name = f"{today.year}年{today.month}月{today.day}日"
+        self.session_edit = QLineEdit(default_name)
+        self.session_edit.setMinimumWidth(180)
+        ctrl.addWidget(self.session_edit)
+
+        create_btn = QPushButton("创建 / 载入目录")
+        create_btn.setFixedHeight(30)
+        create_btn.clicked.connect(self._create_session)
+        ctrl.addWidget(create_btn)
+
+        self.session_status = QLabel("（未创建）")
+        self.session_status.setStyleSheet("color: gray; font-size: 12px;")
+        ctrl.addWidget(self.session_status)
+
+        ctrl.addStretch()
+
+        self.d2c_check = QCheckBox("启用 D2C 对齐预览")
+        self.d2c_check.setToolTip("勾选后实时预览使用 D2C 对齐；拍照时始终保存全部数据")
+        self.d2c_check.stateChanged.connect(
+            lambda s: self._worker.set_d2c(s == Qt.Checked))
+        ctrl.addWidget(self.d2c_check)
+
+        layout.addLayout(ctrl)
+
+        # ── 预览区 ──
+        preview = QFrame()
+        preview.setFrameShape(QFrame.StyledPanel)
+        preview.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
+        pv_layout = QHBoxLayout(preview)
+        pv_layout.setSpacing(6)
+        pv_layout.setContentsMargins(6, 6, 6, 6)
+
+        for attr, title in (("color_lbl", "彩色图"), ("depth_lbl", "深度伪彩图")):
+            box = QVBoxLayout()
+            hdr = QLabel(title)
+            hdr.setAlignment(Qt.AlignCenter)
+            hdr.setStyleSheet("font-weight: bold; font-size: 13px;")
+            box.addWidget(hdr)
+            lbl = QLabel("等待画面…")
+            lbl.setAlignment(Qt.AlignCenter)
+            lbl.setMinimumSize(560, 400)
+            lbl.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
+            lbl.setStyleSheet("background:#111; border:1px solid #555; color:#888;")
+            setattr(self, attr, lbl)
+            box.addWidget(lbl)
+            pv_layout.addLayout(box)
+
+        layout.addWidget(preview, stretch=1)
+
+        # ── 拍照按钮 ──
+        btn_row = QHBoxLayout()
+        btn_row.addStretch()
+        self.capture_btn = QPushButton("拍照")
+        self.capture_btn.setFixedSize(160, 48)
+        f = QFont()
+        f.setPointSize(14)
+        f.setBold(True)
+        self.capture_btn.setFont(f)
+        self.capture_btn.setStyleSheet(
+            "QPushButton{"
+            "  background:#2a6ebb; color:white; border-radius:8px;"
+            "  border:none;"
+            "}"
+            "QPushButton:hover{ background:#3a80dd; }"
+            "QPushButton:pressed{ background:#1a559e; }"
+            "QPushButton:disabled{ background:#555; color:#999; }"
+        )
+        self.capture_btn.clicked.connect(self._on_capture)
+        btn_row.addWidget(self.capture_btn)
+        btn_row.addStretch()
+        layout.addLayout(btn_row)
+
+        return w
+
+    def _build_d2c_tab(self) -> QWidget:
+        w = QWidget()
+        layout = QVBoxLayout(w)
+        layout.setContentsMargins(12, 10, 12, 10)
+        layout.setSpacing(8)
+
+        # 深度图目录
+        row1 = QHBoxLayout()
+        row1.addWidget(QLabel("深度图目录："))
+        self.d2c_dir_edit = QLineEdit()
+        self.d2c_dir_edit.setPlaceholderText("选择包含 PNG 深度图的文件夹…")
+        row1.addWidget(self.d2c_dir_edit)
+        br1 = QPushButton("浏览…")
+        br1.setFixedWidth(70)
+        br1.clicked.connect(lambda: self._browse_dir(self.d2c_dir_edit))
+        row1.addWidget(br1)
+        layout.addLayout(row1)
+
+        # 相机参数文件
+        row2 = QHBoxLayout()
+        row2.addWidget(QLabel("相机参数文件："))
+        self.params_path_edit = QLineEdit()
+        self.params_path_edit.setPlaceholderText(f"留空则自动查找 {PARAMS_FILE}")
+        row2.addWidget(self.params_path_edit)
+        br2 = QPushButton("浏览…")
+        br2.setFixedWidth(70)
+        br2.clicked.connect(lambda: self._browse_json(self.params_path_edit))
+        row2.addWidget(br2)
+        layout.addLayout(row2)
+
+        # 运行按钮
+        run_row = QHBoxLayout()
+        run_row.addStretch()
+        self.run_d2c_btn = QPushButton("▶  开始批量 D2C 转换")
+        self.run_d2c_btn.setFixedHeight(40)
+        self.run_d2c_btn.setStyleSheet(
+            "QPushButton{ background:#2a7a2a; color:white; border-radius:6px; border:none; }"
+            "QPushButton:hover{ background:#3a9a3a; }"
+            "QPushButton:disabled{ background:#555; color:#999; }"
+        )
+        self.run_d2c_btn.clicked.connect(self._run_batch_d2c)
+        run_row.addWidget(self.run_d2c_btn)
+        run_row.addStretch()
+        layout.addLayout(run_row)
+
+        # 日志区
+        layout.addWidget(QLabel("输出日志："))
+        self.d2c_log = QTextEdit()
+        self.d2c_log.setReadOnly(True)
+        self.d2c_log.setStyleSheet(
+            "font-family: Consolas, 'Courier New', monospace; font-size: 12px;")
+        layout.addWidget(self.d2c_log, stretch=1)
+
+        return w
+
+    # ── Slots ──
+
+    def _update_preview(self, color_bgr: np.ndarray, depth_vis: np.ndarray):
+        w, h = self.color_lbl.width(), self.color_lbl.height()
+        self.color_lbl.setPixmap(ndarray_to_pixmap(color_bgr, w, h))
+        w2, h2 = self.depth_lbl.width(), self.depth_lbl.height()
+        self.depth_lbl.setPixmap(ndarray_to_pixmap(depth_vis, w2, h2))
+
+    def _create_session(self):
+        name = self.session_edit.text().strip()
+        if not name:
+            QMessageBox.warning(self, "提示", "请输入目录名称。")
+            return
+        session_dir = DATA_DIR / name
+        session_dir.mkdir(parents=True, exist_ok=True)
+        self._session_dir = session_dir
+
+        # 如果已有相机参数，立即写入
+        if self._worker._camera_params:
+            self._save_params_to_session(self._worker._camera_params)
+
+        self.session_status.setText(f"✓  {session_dir}")
+        self.session_status.setStyleSheet("color: #2a9a2a; font-size: 12px;")
+
+    def _on_params_ready(self, params: dict):
+        if self._session_dir and self._session_dir.exists():
+            self._save_params_to_session(params)
+
+    def _save_params_to_session(self, params: dict):
+        try:
+            p = self._session_dir / "camera_params.json"
+            with open(p, "w") as fh:
+                json.dump(params, fh, indent=2)
+        except Exception:
+            pass
+
+    def _on_capture(self):
+        # 若尚未创建目录，自动创建
+        if self._session_dir is None:
+            self._create_session()
+            if self._session_dir is None:
+                return
+
+        ts       = datetime.now().strftime("%Y%m%d%H%M%S")
+        save_dir = str(self._session_dir / ts)
+
+        self.capture_btn.setEnabled(False)
+        self.capture_btn.setText("拍摄中…")
+        self._worker.trigger_capture(save_dir)
+
+    def _on_capture_done(self, save_dir: str):
+        self.capture_btn.setEnabled(True)
+        self.capture_btn.setText("拍照")
+        self._show_toast("拍摄完成！", f"已保存至：\n{save_dir}")
+
+    def _show_toast(self, title: str, message: str, ms: int = 3000):
+        """短暂显示通知，ms 毫秒后自动关闭。"""
+        dlg = QMessageBox(QMessageBox.Information, title, message,
+                          QMessageBox.Ok, self)
+        dlg.setWindowModality(Qt.NonModal)
+        dlg.show()
+        QTimer.singleShot(ms, dlg.accept)
+
+    def _append_log(self, msg: str):
+        self.d2c_log.append(msg)
+
+    # ── Batch D2C tab ──
+
+    def _browse_dir(self, edit: QLineEdit):
+        d = QFileDialog.getExistingDirectory(self, "选择文件夹")
+        if d:
+            edit.setText(d)
+
+    def _browse_json(self, edit: QLineEdit):
+        f, _ = QFileDialog.getOpenFileName(self, "选择相机参数文件", "", "JSON (*.json)")
+        if f:
+            edit.setText(f)
+
+    def _resolve_params_file(self) -> str | None:
+        """返回有效的 camera_params.json 路径，找不到返回 None。"""
+        explicit = self.params_path_edit.text().strip()
+        if explicit and Path(explicit).is_file():
+            return explicit
+
+        # 默认路径
+        for candidate in [
+            Path(PARAMS_FILE),
+            *(([self._session_dir / "camera_params.json"]
+               if self._session_dir else [])),
+        ]:
+            if candidate.is_file():
+                return str(candidate)
+        return None
+
+    def _run_batch_d2c(self):
+        depth_dir = self.d2c_dir_edit.text().strip()
+        if not depth_dir:
+            QMessageBox.warning(self, "错误", "请先选择深度图目录。")
+            return
+
+        params_file = self._resolve_params_file()
+        if params_file is None:
+            QMessageBox.warning(
+                self, "错误",
+                "找不到相机参数文件。\n请先在「数据采集」页面连接相机以自动生成，"
+                "或手动指定 JSON 文件。")
+            return
+
+        with open(params_file) as fh:
+            params = json.load(fh)
+
+        self.d2c_log.clear()
+        self.d2c_log.append(f"[参数文件] {params_file}")
+        self.d2c_log.append(f"[深度图目录] {depth_dir}\n")
+        self.run_d2c_btn.setEnabled(False)
+
+        self._batch_worker = BatchD2CWorker(params, depth_dir)
+        self._batch_worker.log.connect(self.d2c_log.append)
+        self._batch_worker.done.connect(self._on_batch_done)
+        self._batch_worker.start()
+
+    def _on_batch_done(self):
+        self.run_d2c_btn.setEnabled(True)
+        self.d2c_log.append("\n[ 转换完成 ]")
+
+    # ── Window close ──
+
+    def closeEvent(self, event):
+        self._worker.stop()
+        super().closeEvent(event)
+
+
+# ─────────────────────────────────────────────────────────────────
+#  Entry Point
+# ─────────────────────────────────────────────────────────────────
+
+def main():
+    app = QApplication(sys.argv)
+    app.setStyle("Fusion")
+
+    # 深色调色板（可选，让界面更现代）
+    from PyQt5.QtGui import QPalette, QColor
+    palette = QPalette()
+    palette.setColor(QPalette.Window,          QColor(45,  45,  45))
+    palette.setColor(QPalette.WindowText,      QColor(220, 220, 220))
+    palette.setColor(QPalette.Base,            QColor(30,  30,  30))
+    palette.setColor(QPalette.AlternateBase,   QColor(50,  50,  50))
+    palette.setColor(QPalette.ToolTipBase,     QColor(255, 255, 220))
+    palette.setColor(QPalette.ToolTipText,     QColor(0,   0,   0))
+    palette.setColor(QPalette.Text,            QColor(220, 220, 220))
+    palette.setColor(QPalette.Button,          QColor(60,  60,  60))
+    palette.setColor(QPalette.ButtonText,      QColor(220, 220, 220))
+    palette.setColor(QPalette.BrightText,      QColor(255, 0,   0))
+    palette.setColor(QPalette.Link,            QColor(42,  130, 218))
+    palette.setColor(QPalette.Highlight,       QColor(42,  130, 218))
+    palette.setColor(QPalette.HighlightedText, QColor(0,   0,   0))
+    app.setPalette(palette)
+
+    # 分辨率选择
+    dlg = ProfileDialog()
+    if dlg.exec_() != QDialog.Accepted:
+        sys.exit(0)
+
+    if dlg.pipeline is None or dlg.selected_color is None or dlg.selected_depth is None:
+        QMessageBox.critical(None, "错误", "相机初始化失败，请检查设备连接后重启程序。")
+        sys.exit(1)
+
+    win = MainWindow(dlg.pipeline, dlg.selected_color, dlg.selected_depth)
+    win.show()
+    sys.exit(app.exec_())
+
+
+if __name__ == "__main__":
+    main()