Drone Surveying & Photogrammetry Accessories
Ground Control Points and Reference Tools for Precise Aerial Surveying
Hoodman HGCP15 Ground Control Point Kit 1-5
€ 593.81 incl. VAT
Hoodman HSKR5 Sky Ruler – Scaling Reference Tool
€ 118.99 incl. VAT
Drone surveying and photogrammetry enable the precise capture and evaluation of terrain, buildings and surface areas from the air. Clearly visible reference points and suitable surveying tools are essential for reliable results in professional mapping and surveying projects.
This category includes professional accessories for precise drone surveying, aerial surveying and photogrammetric applications, including Ground Control Points (GCPs), survey control points and additional reference tools for different surveying applications.
- Drone surveying and drone mapping
- Photogrammetry and aerial image evaluation
- Professional aerial surveying
- Terrain, building and surface documentation
- Mapping and surveying projects
- Georeferencing of aerial imagery
Ground Control Points serve as clearly identifiable reference points on the ground and support the accurate positioning, alignment and georeferencing of aerial images. They are commonly used in photogrammetry, drone mapping and professional surveying or documentation projects.
By using clearly visible survey markers, image data can be referenced more reliably and surveying results can be evaluated more accurately. Depending on the application, several Ground Control Points can be distributed throughout the survey area to create a precise reference framework for subsequent data processing.
- Ground Control Points for drone surveying and photogrammetry
- Survey markers for referencing aerial imagery
- Reference tools for precise surveying applications
- Accessories for professional aerial surveying
- Suitable for mapping, documentation and surveying projects
- Supports precise and reproducible surveying workflows
Suitable accessories simplify practical workflows in aerial surveying and a wide range of photogrammetric projects. Durable reference markers and surveying tools can be used for smaller survey areas as well as larger professional surveying applications.
CVC offers selected professional accessories for drone surveying, photogrammetry and aerial surveying. The products in this category are designed for users who require clear reference points, reliable positioning and precise workflows in professional surveying applications.
What are Ground Control Points and why are they important for drone surveying?
Ground Control Points (GCPs) are clearly visible reference markers placed on the ground before a drone survey flight. They allow aerial images to be accurately georeferenced and aligned during data processing. Using GCPs increases the positional accuracy of mapping and photogrammetry results and creates a reliable reference framework for the entire survey area.
How many Ground Control Points should I use for a surveying project?
The number of GCPs depends on the size and complexity of your survey area. Distributing multiple points across the area creates a more precise and consistent reference framework for data processing. The Hoodman 5-Pack Ground Control Kit provides five markers, making it a practical starting point for a range of project sizes.
What is a scaling reference tool and when do I need one?
A scaling reference tool, such as the Hoodman HSKR5 Sky Ruler, is used to provide a known measurement within aerial imagery, enabling accurate scaling of the captured data. It is particularly useful in photogrammetric workflows where true-to-scale measurements and proportions need to be extracted from image data. This type of accessory complements GCPs in professional aerial documentation and mapping projects.
Are these accessories suitable for both professional and private surveying use?
The accessories in this category are designed with professional aerial surveying and photogrammetry workflows in mind, but they are equally applicable to advanced private projects such as land documentation or site mapping. As long as your project requires accurate georeferencing or precise scaling of aerial imagery, these tools are relevant regardless of whether the use is commercial or private.
Do Ground Control Points work with any drone or mapping software?
GCPs are passive visual markers and are not tied to a specific drone model or software platform. Their effectiveness depends on them being clearly visible in the aerial imagery and on the coordinates of each point being measured on the ground, typically with a GNSS receiver. The recorded coordinates are then entered into your photogrammetry or mapping software during post-processing. Please refer to your software documentation for specific GCP import requirements.
