3D Position Calculation in Street View Maps

The patent transforms the street view map system from a single-function display tool into a multi-functional platform that simultaneously provides visualization, measurement, and geographic information extraction capabilities. By integrating 3D spatial calculation functions and geographic coordinate systems into the existing street view framework, the system achieves multiple applications including urban planning, transportation analysis, and property measurement without requiring separate specialized systems.

The patent creates virtual 3D models and spatial representations that copy real-world geographic features from the street view images. By establishing correspondence between 2D image coordinates and 3D geographic coordinates, the system generates accurate virtual models of buildings, roads, and other surface features that can be measured and analyzed, effectively copying real-world measurement capabilities into the digital street view environment.

The patent transitions from 2D map representation to 3D spatial measurement by introducing vertical dimension calculations and three-dimensional coordinate systems. The method calculates not only horizontal positions but also heights and elevations of surface features by analyzing perspective relationships and vanishing points in the street view images, enabling full 3D measurement capabilities while building upon the familiar 2D street view interface.

The patent introduces mathematical models and geometric algorithms as intermediaries between the 2D street view images and 3D measurement results. By using perspective projection geometry, vanishing point detection, and spatial coordinate transformation algorithms, the system bridges the gap between simple image display and complex 3D measurement, translating visual information into precise geographic coordinates and dimensions.

The patent enables the street view map system to automatically perform measurement calculations without requiring external specialized equipment or complex manual surveying processes. The system uses its own existing image data, camera parameters, and geometric models to self-determine geographic positions and dimensions of surface features, making the measurement function self-contained and automatically executable within the platform.

The patent performs preliminary calibration and setup by pre-establishing camera parameters, projection models, and coordinate system transformations during system initialization or first-use configuration. By pre-computing vanishing points, camera orientations, and spatial relationships, the system prepares all necessary measurement frameworks in advance, so that actual measurements can be performed directly without complex real-time calculations or manual calibration during measurement operations.