Patent ID: 11921189
Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. The system of claim 7, wherein the second coordinate system includes a third axis, a fourth axis, and a fifth axis, the third axis being horizontal and perpendicular to the fourth axis, the fourth axis coinciding with the second axis, and the fifth axis being vertical to the horizontal plane, and to determine a transformation relationship between the first coordinate system and the second coordinate system based on the tilting angle and the known height, the at least one processor is configured to:
determine, based on the tilting angle and the known height, a fourth value of the first axis corresponding to the perimeter by projecting a line formed by intersecting the perimeter and the horizontal plane to the first axis; and
determine the transformation relationship based on the fourth value and the first value.