Public-Safety Photogrammetry & 3D Mapping
PIX4D software turns overlapping drone and ground-level imagery into accurate 2D maps, 3D models, point clouds and other geospatial deliverables for investigations, collision reconstruction, emergency response and tactical planning.
MAXSUR and PIX4D have worked alongside state and federal public-safety teams since 2014, helping pioneer some of the nation’s earliest programmatic drone-based workflows for documenting crime and crash scenes. The objective remains practical: collect a scene efficiently, reopen the area sooner and preserve a detailed digital record that investigators can examine methodically after field operations are complete.
More than a software license: MAXSUR can help an agency select the aircraft, ground-capture tools, mapping targets, positioning equipment, processing workstation, software, training and operating procedures needed to establish a repeatable mapping capability.
Why Photogrammetry for Law Enforcement?
Photogrammetry converts ordinary imagery into spatial data. Used with sound capture procedures, appropriate scale and control, and documented quality checks, it gives investigators a powerful way to preserve, measure, analyze and communicate complex scenes.
Tire marks, debris fields, bloodstains, footprints, cartridge cases and other scene elements can be altered by weather, traffic, responders or time. A properly captured 3D reconstruction preserves the visible scene and the spatial relationships among documented items—even after the physical location has been released.
A planned drone flight can document a broad crash site or outdoor scene with hundreds of overlapping images in a short collection window. This can reduce time spent manually measuring every relationship in the roadway, helping agencies restore access sooner while retaining the data needed for later examination.
Orthomosaics, 3D models, measured diagrams, point clouds, perspectives and fly-throughs can make a complicated environment easier to understand. Investigators, prosecutors, command staff and other authorized stakeholders can review the same spatial record instead of relying only on isolated photographs and verbal descriptions.
Once the scene is reconstructed, trained personnel can return to the model to measure distances, areas and volumes, evaluate sight lines and export geospatial data into specialized forensic, reconstruction, CAD or GIS tools. The digital record supports new questions that may arise days, months or years after collection.
Critical incidents demand careful, transparent documentation. A georeferenced model records the visible environment and documented evidence in a consistent coordinate framework. When paired with validated methods, quality-control records and qualified testimony, that spatial baseline can strengthen technical review and help separate measurement from interpretation.
Accuracy depends on the sensor, image quality, overlap, flight or capture geometry, scale, control, positioning method, processing settings and operator procedure. Agencies should validate each workflow against their mission requirements and applicable evidentiary standards.
Why PIX4D?
PIX4D gives public-safety teams a connected path from rapid field mapping and mobile ground capture to advanced desktop processing, quality review and controlled online collaboration.
Products such as PIX4Dmatic, PIX4Dmapper and PIX4Dreact can process data locally. Agencies can build workflows in which sensitive imagery remains on an approved workstation or secure network rather than requiring upload for processing—an important option for evidence governance, connectivity and agency policy.
Overhead imagery supplies broad context, but evidence may sit beneath vehicles, under tree cover, beside structures or indoors. PIX4Dcatch and compatible PIX4Dmatic workflows can combine terrestrial RGB and depth data with aerial projects, helping teams build a more complete model across multiple viewpoints.
Advanced desktop tools provide access to calibration, coordinate systems, ground control points, checkpoints, manual tie points and processing parameters. That control helps trained forensic mappers inspect the reconstruction, refine challenging projects and explain how a result was produced.
PIX4Dreact is purpose-built to turn drone imagery into a current 2D orthomosaic on a field computer without depending on cloud access. Incident command can gain a common operating picture where cellular coverage, bandwidth or time is limited.
PIX4D quality reports expose project indicators such as image calibration, overlap, ground sample distance, geolocation behavior and control-point error. These records help operators identify weaknesses, document quality checks and explain the technical basis of a reconstruction.
PIX4D does not force every mission into one processing model. Teams can keep sensitive projects local, share approved deliverables through PIX4Dcloud or combine desktop control with cloud-based access for distributed stakeholders. The workflow can follow the mission and the agency’s data policy.
Build the Right Workflow
The products can operate independently, but their greatest value often comes from connecting field capture, desktop processing and authorized collaboration.
Rapid 2D Incident Mapping
Create current orthomosaic maps quickly on a field computer for emergency management, fire, flooding, search operations, tactical planning and other time-sensitive missions—even without an internet connection.
Explore PIX4Dreact →Indoor & Ground Capture
Use a compatible mobile device—and optional RTK equipment—to capture ground-level, covered and indoor scene detail that aerial imagery cannot see. Export projects for supported desktop or cloud processing workflows.
Explore PIX4Dcatch →Advanced Desktop Reconstruction
Process aerial and terrestrial imagery, large datasets and compatible LiDAR point clouds; merge projects; manage control; generate point clouds, orthomosaics, elevation products, meshes and geospatial outputs on an agency-controlled workstation.
Explore PIX4Dmatic →Online Processing & Collaboration
Process, measure, annotate, compare and share approved 2D and 3D projects with authorized command staff, investigators, emergency managers, prosecutors or partner agencies through a browser-based workspace.
Explore PIX4Dcloud →Need a complete forensic mapping program? MAXSUR can help define the capture standard, accuracy requirement, evidence-handling model, deliverables, software mix, training plan and validation process before equipment is purchased.
Complete the Capability
Photogrammetry software is one part of the system. Select the aircraft, control, LiDAR and program components that match the size, environment, accuracy and response time of the mission.
Choose NDAA-compliant aircraft for scene mapping, surveillance, search, inspection and other agency missions.
Improve registration, add known control and connect separate aerial, ground, indoor or LiDAR datasets.
Add direct range measurements for vegetation, low-texture surfaces, terrain and other conditions that challenge imagery alone.
See integrated drone, terrestrial, LiDAR, processing, training and scene-reconstruction capabilities.
Photogrammetry and LiDAR are complementary. Photogrammetry produces richly textured models from imagery; LiDAR directly measures range and can perform better around vegetation or surfaces with limited visual texture. Many advanced programs use both and bring the resulting data together in a common geospatial workflow.
MAXSUR Resources
Move from interest to an operational capability with public-safety funding resources, practical technology guidance and established purchasing pathways.
Search public and private funding resources organized to help agencies identify potential program support.
Explore practical guidance on drones, photogrammetry, LiDAR, forensic mapping, surveillance and emerging technology.
Review MAXSUR purchasing information, business credentials and cooperative-contract pathways.
Frequently Asked Questions
Yes. Compatible desktop products—including PIX4Dmatic, PIX4Dmapper and PIX4Dreact—support local processing. This gives an agency the option to keep raw imagery and generated deliverables within an approved workstation or network. PIX4Dcloud is available when online processing or browser-based collaboration is appropriate and authorized.
Photogrammetry can produce highly accurate, measurable results when the collection geometry, imagery, scale, control, positioning, processing and quality checks are appropriate for the application. Required accuracy should be defined before capture, verified with independent control or checkpoints when appropriate, and documented according to agency procedure.
Yes. PIX4Dcatch supports mobile terrestrial capture, and compatible PIX4Dmatic workflows can process terrestrial RGB and supported depth data, merge projects and combine multiple viewpoints. Overlap, shared coordinates, targets, control and capture planning remain important when joining separate datasets.
PIX4Dreact is intended for fast 2D situational mapping when responders need a current orthomosaic quickly, often in the field and without internet service. PIX4Dmatic is the deeper desktop workflow for advanced photogrammetric processing, 3D reconstruction, large or terrestrial datasets, data fusion, quality review and professional geospatial outputs.
Not universally. Each measurement technology has strengths and limitations. Photogrammetry is efficient, scalable and visually rich; LiDAR directly measures range and may perform better in vegetation or on low-texture surfaces; a total station provides controlled discrete measurements. MAXSUR can help design a complementary workflow based on scene type, accuracy, speed and budget.
Yes. MAXSUR can provide compatible drones, payloads, mobile capture equipment, RTK and mapping targets, LiDAR systems, processing workstations, software, operator training, workflow development and program support. The goal is a repeatable agency capability—not merely a collection of individual products.
Build an Operational Mapping Capability
Tell us what your agency needs to document, how quickly the scene must be cleared, what accuracy and deliverables are required, and how the data must be controlled. We can help configure the PIX4D software, aircraft, sensors, mapping targets, processing hardware, training and procedures around the mission.
Talk with a MAXSUR Mapping Specialist
PIX4Dreact: Rapid 2D Offline Mapping for First Responders
PIX4Dcloud: Secure 3D Evidence Sharing & Agency Collaboration
PIX4Dcatch: Mobile 3D Scanning App for Ground-Level Forensics
PIX4Dmatic: Advanced 3D Crash Scene Reconstruction Software
