Spaces:
Running
Running
File size: 2,027 Bytes
347d1a8 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 |
"""
Constants for geometric computation module.
This module contains thresholds and parameters used in finger axis
estimation and ring zone localization.
"""
# =============================================================================
# Landmark Quality Validation Constants
# =============================================================================
# Minimum distance between consecutive landmarks (pixels)
# Less than this suggests collapsed/invalid landmarks
MIN_LANDMARK_SPACING_PX = 5.0
# Minimum total finger length from MCP to TIP (pixels)
# Entire finger less than this suggests invalid detection
MIN_FINGER_LENGTH_PX = 20.0
# =============================================================================
# Finger Axis Estimation Constants
# =============================================================================
# Epsilon for avoiding division by zero in normalization
EPSILON = 1e-8
# Minimum number of mask points required for PCA
MIN_MASK_POINTS_FOR_PCA = 10
# Sample distance factor for endpoint thickness heuristic
# Used when determining palm vs tip end without landmarks
ENDPOINT_SAMPLE_DISTANCE_FACTOR = 0.1 # 10% of finger length
# =============================================================================
# Ring Zone Localization Constants
# =============================================================================
# Default ring zone position as percentage of finger length from palm
DEFAULT_ZONE_START_PCT = 0.15 # 15% from palm end
DEFAULT_ZONE_END_PCT = 0.25 # 25% from palm end
# Anatomical zone width factor (for anatomical localization mode)
# Zone width = MCP-PIP distance * this factor
ANATOMICAL_ZONE_WIDTH_FACTOR = 0.5 # 50% of MCP-PIP segment (25% each side)
# =============================================================================
# Line-Contour Intersection Constants
# =============================================================================
# Minimum determinant value to detect parallel lines
MIN_DETERMINANT_FOR_INTERSECTION = 1e-8
|