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Enhance data quality control with RawQC Viewer

Blog , Product Features
24 August 2023
Pre-Processing quality control with RawQC Viewer

Quality control plays a crucial role in ensuring accurate and reliable results from aerial data captured during flights. The RawQC Viewer, a powerful tool within the UltraMap ecosystem, empowers customers to perform swift quality assessments on raw data post-flight. This blog post explores how the RawQC Viewer streamlines the quality control process, aiding users in making informed decisions and improving data accuracy.

Pre-Processing quality control with RawQC Viewer
Quality control plays a crucial role in ensuring accurate and reliable results from aerial data captured during flights. The RawQC Viewer, a powerful tool within the UltraMap ecosystem, empowers customers to perform swift quality assessments on raw data post-flight. This blog post explores how the RawQC Viewer streamlines the quality control process, aiding users in making informed decisions and improving data accuracy.

Efficient initial quality check


The RawQC Viewer, an integral component of UltraMap, offers customers the ability to conduct a rapid preliminary quality control assessment immediately after a flight. Through geo-referenced Quick Views, users can examine raw data prior to the time-consuming processing stage. This significantly accelerates the data review process, providing users with valuable insights without delay. The user interface aligns with UltraMap Studio's design, minimizing the learning curve for users and requiring minimal training.

Apart from the initial quality check of fresh data, the RawQC Viewer also serves as a valuable tool for swiftly accessing raw data within archived records. This provides key insights into various project parameters, coverage details, flight plans, and more.

Visual classification and flexible filtering


Raw captures are systematically categorized based on their Raw Capture Status or Raw Capture ISO Mode. Warnings include categories such as overexposure, underexposure, image blur, data transmission issues, and more. Captures taken with a faulty shutter mechanism are displayed in red, ensuring immediate attention.

Visual classification and flexible filtering in RawQC Viewer
Filtering based on capture status
Images with warnings are colored orange

Images with warnings are colored orange

Images can be efficiently filtered based on warning types, subsequently viewed in low-resolution RGB format or individual channels. Pixels flagged with over- or under-exposure warnings are highlighted in red. Additionally, basic radiometric tools assist users in manual quality control tasks.
Streamlined image filtering and viewing
Overview of images
Identifying exposure issues
Overexposed areas are highlighted in red

Detailed data exploration


For in-depth analysis, users can access detailed information for each raw capture through the Data Explorer Tab. This includes calculated image blur values, configured thresholds, and, if applicable, warnings associated with the selected image.

Advanced filtering and visualization


Beyond warning-based filtering, the RawQC Viewer allows filtering based on various properties, such as image number, capture date and time, capture altitude, flight direction, and more. Users can employ a heatmap feature to visualize the coverage of their Area of Interest (AOI), enhancing spatial understanding.

Seamless reporting

Results from the RawQC Viewer, including warnings categorized by type and image number, are included in the Lvl00 Report. This report can be exported as a PDF, providing a comprehensive summary of the quality control process.

Both the RawQC Viewer and the Lvl00 Report are available to every customer holding a valid UltraMap Essentials license.

Lvl00 Report in UltraMap
Lvl00 Report
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