YihengDeng/syncG

This repository mainly consists of two parts: five files starting with syncG, which are the synthetic meter dataset, and the scene_file folder, which contains the scene files used for data generation.

For more detailed instructions on data generation, please visit: https://github.com/SKYWOWDYH/SyncG

Due to the large file size, the data files have been compressed into multiple volumes. We recommend downloading all files starting with syncG to the same directory and then unzipping them using the following commands in that directory:

zip -s- syncG.zip -O syncG_full.zip
unzip -q syncG_full.zip

After extraction, the dataset directory structure will be as follows:

syncG/
|-- annotations/
|   |-- test/
|   |-- train/
|-- images/
|   |-- test/
|   |-- train/
|-- masks/
    |-- test/
    |-- train/

Data Card

A reference table listing all annotation keys, their descriptions, and data types.

Field Name	Description	Data Type
file_name	Unique identifier prefix for the image file.	String
gauge_type	The category or type of the gauge (e.g., pressure, voltmeter).	String
width	Image width in pixels.	Integer
height	Image height in pixels.	Integer
ground_truth	The precise ground truth reading value of the gauge.	Float
long_interval_degree	Angle (in degrees) between adjacent major scale marks relative to the dial center.	Float
long_interval_value	The numerical difference in value between adjacent major scale marks.	Integer
long_num	Total number of major scale marks on the dial.	Integer
start_value	The initial (minimum) numerical value of the gauge scale.	Integer
small_interval	Number of minor scale subdivisions between two adjacent major marks.	Integer
text_interval	Frequency of label occurrence (number of major marks per labeled value).	Integer
pointer_rotate_degree	Deflection angle of the pointer from its initial position to the current reading.	Float
num_scalemark_before	Count of major scale marks preceding the current pointer position.	Integer
min_scalemark	The reading value of the major scale mark immediately preceding the pointer.	Integer
closest_scalemark	The reading value of the major scale mark spatially closest to the pointer.	Integer
ann_camera_location	The spatial coordinates [x, y, z] of the camera in the 3D scene.	List [Float]
homo_matrix	**3×3 matrix parameters for image perspective correction (**homography matrix)	List [Float]
dial_bbox_annotations	Bounding box coordinates [x_min,y_min,x_max,y_max] for the gauge dial.	List [Integer]
text_bbox_annotations	List of objects containing bounding boxes and values for numerical text labels.	List [Dict]
seg_annotations	Segmentation data (masks/polygons) for scale marks and pointers.	List [Dict]
keypoints_annotations	Keypoint coordinates for pointer (origin/tip) and scale marks.	List [Dict]
scene_name	Filename of the HDRI map used for background/lighting rendering.	String
seed	Random seed used for synthetic generation logic.	Integer