v0.4.1

Bug Fixes

• Fix perspective-to-sphere coordinate conversion: Replaced naive angle addition (local_yaw + yaw_offset, local_pitch + pitch_offset) with proper 3D rotation via perspective_to_sphere() when converting OCR bounding box coordinates to world spherical coordinates. The old approach ignored the coupling between yaw and pitch in 3D rotation, causing ~10° coordinate errors when the camera had a non-zero pitch offset or when text was near the edges of perspective images.

Impact

• The same text detected in overlapping perspective views now maps to identical world coordinates (previously off by up to 10°+), enabling correct deduplication across views
• Bounding box width/height are now computed from world-space corner positions with proper yaw wrap-around handling