TIMMS Site Viewer vs Scan4D

Site Viewer allows users to easily navigate around buildings and structures mapped with TIMMS (Trimble Indoor Mobile Mapping Solution). With seamless switching between 2D plan view and 3D fly-through modes, Site Viewer locates the structure precisely in a real-world coordinate system and provides precise latitude, longitude and elevation information for every point within the structure. Continuous 3D modeling is augmented with panoramic photographic imagery at regular intervals throughout the building, clearly identified by floor markers in both panoramic and 3D model modes. Features · View a building or structure in the context of its location · Seamlessly transition between 2D plan view and 3D first-person view · Control pan, zoom, elevation and navigation with on-screen sliders and joystick · Switch between 3D model and panoramic photo view when in first-person mode · Choose which layers to display for ease of viewing – switch on or off individual building floors and/or orthophoto views · Toggle views of walls, wall edges, annotations and markers, as well as floor markers for panoramic image locations · Measure distances from the imagery and view precise coordinates with built-in measurement and ray-trace tools For more information on the Trimble Indoor Mobile Mapping Solution see http://applanix.com/timms

Scan4D is a professional-grade reality capture app for iPhone and iPad. It turns your device's LiDAR sensor and camera into a powerful 3D scanner, capturing detailed meshes, depth maps, and camera poses for downstream reconstruction, photogrammetry, and spatial computing. FULL MODE (LiDAR devices) • Real-time mesh reconstruction with live wireframe overlay • 16-bit depth maps captured at adaptive frame rates • Scan capacity metrics: polygon count, drift tracking, session duration • Interactive 3D mesh preview with camera-sampled vertex coloring • Privacy filtering: person segmentation removes humans from meshes, face blurring in RGB exports LITE MODE (all devices) • RGB frame capture with ARKit camera poses • Server-side photogrammetry via exported image bundles • Automatic detection — no configuration needed TIME-SERIES SCANNING • Group scans by Location and re-scan the same space over time • "Extend Scan" loads a red ghost-mesh overlay of previous captures • Adjacent stitching: scan neighboring areas with shared coordinate frames • ARWorldMap relocalization for precise alignment between sessions FLEXIBLE EXPORT FORMATS • Scan4D: Full bundle with metadata, relocalization map, images, depth, and camera data • Polycam: Raw data import compatible with Polycam • RAW: Nerfstudio/COLMAP-compatible transforms.json + images + depth • OBJ / PLY / USDZ: Native mesh formats for MeshLab, Blender, and iOS Quick Look SERVER INTEGRATION • Configure any HTTP(S) upload endpoint in Settings • Direct PUT upload with live progress tracking • Save to Files or AirDrop for offline workflows • Compatible with self-hosted reconstruction pipelines DEVELOPER MODE • Front/back camera switching for testing privacy features • Synthetic IMU, camera, and depth injection for Simulator testing • Vertex mapping diagnostics and debug overlays Designed for researchers, 3D scanning professionals, and spatial computing developers who need raw, high-fidelity sensor data with full control over the reconstruction pipeline. Requires ARKit-capable device. LiDAR-equipped iPhone or iPad Pro recommended for full functionality.