class ScannetVis(QWidget):
"""Class that creates and handles a visualizer for a pointcloud"""
def __init__(self,
scan,
rgb_names,
depth_names,
pose_names,
offset=0,
skip_im=10,
mesh_plot=True,
parent=None):
super(ScannetVis, self).__init__(parent=parent)
self.scan = scan
self.rgb_names = rgb_names
self.depth_names = depth_names
self.pose_names = pose_names
self.offset = offset
self.offset_prev = offset
self.skip_im = skip_im
self.mesh_plot = mesh_plot
self.keyboard_inputs = None
self.total = len(self.rgb_names)
self.checkBox_list = []
self.checkBox_with_3D = []
self.reset()
self.initUI()
self.update_scan()
def initUI(self):
self.setStyleSheet("background-color: white;")
self.principalLayout = QHBoxLayout(self)
''' left left Frame : RGB with yolact & depth frame '''
self.left2Frame = QFrame(self)
self.left2Frame.setFrameShape(QFrame.StyledPanel)
self.left2Frame.setFrameShadow(QFrame.Raised)
self.vertical2Layout = QVBoxLayout(self.left2Frame)
# self.vertical2Layout.setSpacing(0)
self.principalLayout.addWidget(self.left2Frame)
# self.vertical2_1Layout = QVBoxLayout(self.left2Frame)
# self.vertical2Layout.addWidget(self.left2Frame)
# add rgb depth
self.img_canvas.create_native()
self.img_canvas.native.setMinimumSize(320, 480)
self.vertical2Layout.addWidget(self.img_canvas.native)
''' left Frame : 3D reconstructed Scene '''
self.leftFrame = QFrame(self)
self.leftFrame.setFrameShape(QFrame.StyledPanel)
self.leftFrame.setFrameShadow(QFrame.Raised)
self.verticalLayout = QVBoxLayout(self.leftFrame)
# self.verticalLayout.setSpacing(0)
self.principalLayout.addWidget(self.leftFrame)
self.canvas.create_native()
self.canvas.native.setMinimumSize(640, 480)
self.verticalLayout.addWidget(self.canvas.native)
''' left center Frame : 3D Scene graph'''
self.SGFrame = QFrame(self)
self.SGFrame.setFrameShape(QFrame.StyledPanel)
self.SGFrame.setFrameShadow(QFrame.Raised)
# self.verticalSGLayout = QVBoxLayout(self.SGFrame)
# self.verticalLayout.setSpacing(0)
self.principalLayout.addWidget(self.SGFrame)
self.scene_graph_canvas.create_native()
self.scene_graph_canvas.native.setMinimumSize(640, 480)
self.verticalLayout.addWidget(self.scene_graph_canvas.native)
''' center Frame : control pannel '''
self.keyFrame = QFrame(self)
self.keyFrame.setFrameShape(QFrame.StyledPanel)
self.keyFrame.setFrameShadow(QFrame.Raised)
self.keysverticalLayout = QVBoxLayout(self.keyFrame)
self.label1 = QLabel(
"To navigate: "
"\n n: next (next scan) "
"\n s: start (start processing sequential rgb-d images)"
"\n p: pause (pause processing)"
"\n q: quit (exit program)"
"\n\n To control 3D view: "
"\n LMB: orbits the view around its center point"
"\n RMB or scroll: change scale_factor (i.e. zoom level)"
"\n SHIFT + LMB: translate the center point"
"\n SHIFT + RMB: change FOV")
self.label2 = QLabel("To find specific objects in 3D Space : ")
# self.keysverticalLayout.addWidget(self.label1)
# self.keysverticalLayout.addWidget(self.label2)
self.vertical2Layout.addWidget(self.label1)
self.vertical2Layout.addWidget(self.label2)
self.le = QLineEdit(self)
self.vertical2Layout.addWidget(self.le)
self.spb = QPushButton('search', self)
self.vertical2Layout.addWidget(self.spb)
self.spb.clicked.connect(self.search_button_click)
self.cpb = QPushButton('clear', self)
self.vertical2Layout.addWidget(self.cpb)
self.cpb.clicked.connect(self.clear_button_click)
self.verticalLayoutR = QVBoxLayout()
self.verticalLayoutR.addWidget(self.keyFrame)
self.verticalLayoutR.setContentsMargins(0, 0, 0, 0)
self.verticalLayoutR.setSpacing(0)
self.principalLayout.addLayout(self.verticalLayoutR)
''' Right Frame : result images of searched objects '''
self.rightFrame = QFrame(self)
self.rightFrame.setFrameShape(QFrame.StyledPanel)
self.rightFrame.setFrameShadow(QFrame.Raised)
self.verticalLayoutRight = QVBoxLayout(self.rightFrame)
self.verticalLayoutRight.setContentsMargins(0, 0, 0, 0)
self.verticalLayoutRight.setSpacing(0)
self.principalLayout.addWidget(self.rightFrame)
self.setLayout(self.principalLayout)
self.setWindowTitle('Searching objects')
self.setGeometry(300, 300, 300, 200)
self.show()
def reset(self):
""" Reset. """
# last key press (it should have a mutex, but visualization is not
# safety critical, so let's do things wrong)
self.action = "no" # no, next, back, quit are the possibilities
''' 3D points cloud or mesh SceneCanvas '''
# new canvas prepared for visualizing data
self.canvas = SceneCanvas(keys='interactive', show=True)
# interface (n next, b back, q quit, very simple)
self.canvas.events.key_press.connect(self.key_press)
self.canvas.events.draw.connect(self.draw)
# grid
self.grid = self.canvas.central_widget.add_grid()
# add point cloud views
self.scan_view = vispy.scene.widgets.ViewBox(border_color='white',
parent=self.canvas.scene)
self.grid.add_widget(self.scan_view, 0, 0)
# Camera location settings
self.scene_cam = vispy.scene.cameras.BaseCamera()
# self.scene_cam.center = (-10, -10, 10)
# self.scan_view.add(self.scene_cam)
# self.scene_cam.pre_transform.set_range()
canvas2 = vispy.app.Canvas()
w = QMainWindow()
widget = QWidget()
w.setCentralWidget(widget)
widget.setLayout(QVBoxLayout())
widget.layout().addWidget(canvas2.native)
widget.layout().addWidget(QPushButton())
w.show()
self.scan_vis = visuals.Mesh()
self.scan_vis_mean = visuals.Line()
self.scan_vis_cam = visuals.Line()
self.scan_bbox_3d = visuals.Line()
self.label_vis = visuals.Text()
self.scan_view.add(self.scan_vis)
self.scan_view.add(self.scan_vis_mean)
self.scan_view.add(self.scan_vis_cam)
self.scan_view.add(self.scan_bbox_3d)
self.scan_view.add(self.label_vis)
self.scan_view.camera = 'arcball'
self.tr = self.scan_vis.transforms.get_transform(map_from='visual',
map_to='canvas')
# self.scan_view.camera = self.scene_cam
# self.scan_view.camera = 'arcball' , 'turntable'
# self.scan_view.camera.transform.rotate(90, (0,1,0))
visuals.XYZAxis(parent=self.scan_view.scene)
''' 2D images SceneCanvas '''
# img canvas size
self.canvas_W = 320
self.canvas_H = 280
self.multiplier = 2
''' new canvas for RGB & Depth img '''
self.img_canvas = SceneCanvas(keys='interactive',
show=True,
size=(self.canvas_W,
self.canvas_H * self.multiplier))
self.img_grid = self.img_canvas.central_widget.add_grid()
# interface (n next, s start, p pause, q quit, )
self.img_canvas.events.key_press.connect(self.key_press)
self.img_canvas.events.draw.connect(self.draw)
# add rgb views
self.rgb_img_raw_view = vispy.scene.widgets.ViewBox(
border_color='white', parent=self.img_canvas.scene)
self.img_grid.add_widget(self.rgb_img_raw_view, 0, 0)
self.rgb_img_raw_vis = visuals.Image(cmap='viridis')
self.rgb_img_raw_view.add(self.rgb_img_raw_vis)
# add a view for the depth
self.depth_img_view = vispy.scene.widgets.ViewBox(
border_color='white', parent=self.img_canvas.scene)
self.img_grid.add_widget(self.depth_img_view, 1, 0)
self.depth_img_vis = visuals.Image(cmap='viridis')
self.depth_img_view.add(self.depth_img_vis)
''' new canvas for 3D scene graph img '''
self.scene_graph_canvas = SceneCanvas(keys='interactive',
show=True,
size=(640, 480))
self.scene_graph_grid = self.scene_graph_canvas.central_widget.add_grid(
)
self.scene_graph_canvas.events.key_press.connect(self.key_press)
self.scene_graph_canvas.events.draw.connect(self.draw)
# add a view for 3D scene graphs
self.scene_graph_view = vispy.scene.widgets.ViewBox(
border_color='white', parent=self.scene_graph_canvas.scene)
self.scene_graph_grid.add_widget(self.scene_graph_view, 0, 0)
self.scene_graph_vis = visuals.Image(cmap='viridis')
self.scene_graph_view.add(self.scene_graph_vis)
def get_mpl_colormap(self, cmap_name):
cmap = plt.get_cmap(cmap_name)
# Initialize the matplotlib color map
sm = plt.cm.ScalarMappable(cmap=cmap)
# Obtain linear color range
color_range = sm.to_rgba(np.linspace(0, 1, 256), bytes=True)[:, 2::-1]
return color_range.reshape(256, 3).astype(np.float32) / 255.0
def update_yolact(self):
title = "scan " + str(self.offset)
# draw color & depth image
self.img_canvas.title = title
_, _, _, _ = self.scan.open_scan(self.rgb_names[self.offset],
self.depth_names[self.offset],
self.pose_names[self.offset],
self.offset,
recon=False)
text_str = 'Frame %d ' % (self.offset)
font_face = cv2.FONT_HERSHEY_DUPLEX
font_scale = 0.6
font_thickness = 1
text_w, text_h = cv2.getTextSize(text_str, font_face, font_scale,
font_thickness)[0]
masked_img = self.scan.masked_img.copy()
masked_img = cv2.resize(masked_img, (320, 240),
interpolation=cv2.INTER_AREA)
x1, y1 = 0, 0
text_pt = (x1, y1 + 15)
text_color = [255, 255, 255]
color = [0, 0, 0]
cv2.rectangle(masked_img, (x1, y1), (x1 + text_w, y1 + text_h + 4),
color, -1)
cv2.putText(masked_img, text_str, text_pt, font_face, font_scale,
text_color, font_thickness, cv2.LINE_AA)
self.rgb_img_raw_vis.set_data(masked_img)
self.rgb_img_raw_vis.update()
depth_img = cv2.resize(self.scan.depth_im.copy(), (320, 240),
interpolation=cv2.INTER_AREA)
self.depth_img_vis.set_data(depth_img)
self.depth_img_vis.update()
def update_3d_recon(self):
title = "scan " + str(self.offset)
if (self.offset % self.skip_im == 0):
start_time = time.time()
verts, faces, norms, colors = self.scan.open_scan(
self.rgb_names[self.offset],
self.depth_names[self.offset],
self.pose_names[self.offset],
self.offset,
recon=True)
self.verts, self.faces, self.norms, self.colors = verts, faces, norms, colors
self.canvas.title = title
self.scan_vis.set_data(vertices=verts,
faces=faces,
vertex_colors=colors / 255.)
self.scan_vis.update()
#if self.scan.num_dets_to_consider > 0 and not self.scan.use_gpu:
if self.scan.num_dets_to_consider > 0 and self.scan.tsdf_vol.debug_same_node_detector:
self.mean_pose = np.array(self.scan.tsdf_vol.mask_centers)
self.scan_vis_mean.set_data(self.mean_pose,
color='red',
width=3,
connect='strip')
self.scan_vis_mean.update()
# find object's position and visualize
self.label_vis.text = self.scan.tsdf_vol.class_label
self.label_vis.pos = self.mean_pose
self.label_vis.font_size = int(40)
self.cam_frustum = np.array(self.scan.tsdf_vol.cam_frustum)
self.scan_vis_cam.set_data(self.cam_frustum,
color='blue',
width=3,
connect=self.scan.tsdf_vol.cam_connect)
self.scan_vis_cam.update()
if ('camera' in self.label_vis.text):
self.label_vis.text.pop()
self.label_vis.pos = self.label_vis.pos[:-1, :]
self.label_vis.text += self.scan.tsdf_vol.cam_label
self.label_vis.pos = np.append(self.label_vis.pos,
self.scan.tsdf_vol.cam_centers,
axis=0)
# Draw Scene graph images
generated_scene_graph_file = os.path.join(
self.scan.tsdf_vol.scene_graph_path,
'scene_graph' + str(self.offset) + '.png')
if os.path.exists(generated_scene_graph_file):
print('Draw scene graph{}'.format(self.offset))
sg_img = cv2.cvtColor(cv2.imread(generated_scene_graph_file),
cv2.COLOR_BGR2RGB)
self.sg_img = cv2.resize(sg_img, (640, 480),
interpolation=cv2.INTER_AREA)
self.scene_graph_vis.set_data(self.sg_img)
self.scene_graph_vis.update()
print("--- %s seconds of %d to %d images---" %
(time.time() - start_time, self.offset - self.skip_im + 1,
self.offset))
print("--- fps : {} ---".format(self.skip_im /
(time.time() - start_time)))
def update_scan(self):
# update_yolact images
self.update_yolact()
# Reconstruct 3D Scene and detect same nodes or not
self.update_3d_recon()
def update_seq_scan(self):
if self.canvas.events.key_press.blocked():
self.canvas.events.key_press.unblock()
if self.img_canvas.events.key_press.blocked():
self.img_canvas.events.key_press.unblock()
if self.scene_graph_canvas.events.key_press.blocked():
self.scene_graph_canvas.events.key_press.unblock()
if (self.start):
self.offset += 1
self.update_yolact()
self.update_3d_recon()
self.canvas.scene.update()
self.img_canvas.scene.update()
self.scene_graph_canvas.update()
self.canvas.on_draw(None)
self.img_canvas.on_draw(None)
self.scene_graph_canvas.on_draw(None)
# interface
def key_press(self, event):
self.keyboard_inputs = event.key
if event.key == 'N':
self.offset += 1
if self.offset >= self.total:
self.offset = 0
self.update_scan()
elif event.key == 'S':
# Start to process RGB-D sequences
self.start = True
self.timer1 = vispy.app.Timer(0.033,
connect=self.on_timer1,
start=True)
self.timer2 = vispy.app.Timer(0.033,
connect=self.on_timer2,
start=True)
elif event.key == 'P':
# Pause to process RGB sequences
self.start = False
elif event.key == 'U':
# test when updated draw function
self.canvas.scene.update()
self.img_canvas.scene.update()
self.scene_graph_canvas.update()
elif event.key == 'Q' or event.key == 'Escape':
self.destroy()
def on_timer1(self, event):
# self.update_seq_scan()
if (self.start):
self.offset += 1
self.update_yolact()
def on_timer2(self, event):
if (self.start):
# self.offset += 1
self.update_3d_recon()
def search_button_click(self):
print('searching object : {}'.format(self.le.text()))
objects_dict = self.scan.tsdf_vol.node_data
is_obj_exist = []
self.clear_searched_items(self.verticalLayoutRight)
for key, val in objects_dict.items():
if (val['class'] == self.le.text()):
print('find {}'.format(self.le.text()))
thumbnail_path = os.path.join(
self.scan.tsdf_vol.bbox_path,
'thumbnail_' + str(key) + '_' +
str(int(objects_dict[str(key)]['detection_cnt'] / 2)) +
'.png')
cv2_img = cv2.cvtColor(cv2.imread(thumbnail_path),
cv2.COLOR_BGR2RGB)
image = QImage(cv2_img.data, cv2_img.shape[1],
cv2_img.shape[0], cv2_img.strides[0],
QImage.Format_RGB888)
image_frame = QLabel()
image_frame.setPixmap(QPixmap.fromImage(image))
self.verticalLayoutRight.addWidget(image_frame)
checkBox = QCheckBox(val['class'] + str(key))
self.checkBox_list += [[checkBox, val['class'], str(key)]]
scan_bbox_3d = visuals.Line()
self.checkBox_with_3D += [scan_bbox_3d]
self.scan_view.add(scan_bbox_3d)
checkBox.stateChanged.connect(self.checkBoxState)
# searched_obj = QLabel(val['class'] + str(key))
self.verticalLayoutRight.addWidget(checkBox)
is_obj_exist += [True]
if (not is_obj_exist):
searched_obj = QLabel("Nothing was found!")
self.verticalLayoutRight.addWidget(searched_obj)
else:
searched_obj = QLabel(
"Check box if you want to find objects in 3D Scene.")
self.verticalLayoutRight.addWidget(searched_obj)
def clear_button_click(self):
print('clear previous searched object')
self.clear_searched_items(self.verticalLayoutRight)
def clear_searched_items(self, layout):
# reset rearching results widget
while layout.count() > 0:
item = layout.takeAt(0)
if not item:
continue
w = item.widget()
if w:
w.deleteLater()
# reset visuals.Line for 3D BBox of searched objects
for i, check in enumerate(self.checkBox_list):
self.checkBox_with_3D[i].parent = None
self.checkBox_with_3D[i] = visuals.Line()
self.scan_view.add(self.checkBox_with_3D[i])
self.checkBox_list = []
self.checkBox_with_3D = []
def checkBoxState(self):
# checkBox_list is composed of [QcheckBox, class_name, class_3D_ID]
for i, check in enumerate(self.checkBox_list):
if check[0].isChecked() == True:
print('checked!!!')
# Find 3D BBox in 3D Scene Canvas\
bbox_3d = np.array(self.scan.tsdf_vol.bbox_3ds[check[2]])
bbox_connect = np.array([[0, 1], [1, 2], [2, 3], [3,
0], [4, 5],
[5, 6], [6, 7], [7, 4], [0, 4],
[1, 5], [2, 6], [3, 7]])
self.checkBox_with_3D[i].set_data(bbox_3d,
color='green',
width=3,
connect=bbox_connect)
else:
self.checkBox_with_3D[i].parent = None
self.checkBox_with_3D[i] = visuals.Line()
self.scan_view.add(self.checkBox_with_3D[i])
def draw(self, event):
# print('draw states!!')
# print('event key: {}'.format(self.keyboard_inputs))
if self.canvas.events.key_press.blocked():
self.canvas.events.key_press.unblock()
if self.img_canvas.events.key_press.blocked():
self.img_canvas.events.key_press.unblock()
if self.scene_graph_canvas.events.key_press.blocked():
self.scene_graph_canvas.events.key_press.unblock()
if self.keyboard_inputs == 'P':
# Pause to process RGB sequences
self.start = False
# if self.keyboard_inputs == 'S':
# self.update_seq_scan()
def destroy(self):
# destroy the visualization
self.canvas.close()
self.img_canvas.close()
self.scene_graph_canvas.close()
vispy.app.quit()
def run(self):
vispy.app.use_app(backend_name="PyQt5", call_reuse=True)
vispy.app.run()
def on_draw(self, event):
SceneCanvas.on_draw(self, event)
