ihmcrobotics/ihmc-open-robotics-software
Aug 2025 – Jun 2026
9 Months active
Languages Used
Java
Technical Skills
Code RefactoringConcurrencyFront-end DevelopmentImGuiJavaJava Development
Duncan Calvert
PROFILE
Duncan Calvert
Over nine months, contributed to ihmc-open-robotics-software by developing and refining features for robotics simulation, perception, and UI workflows. Delivered enhancements such as robust behavior tree execution, advanced robot-state visualization, and improved VR and ImGui interfaces, focusing on maintainability and operator usability. Addressed stability through targeted bug fixes, including UI crash prevention and perception module safeguards. Leveraged Java, ROS 2, and OpenCV to integrate computer vision, multithreading, and real-time data handling. Prioritized code quality with systematic refactoring and improved error logging, enabling faster debugging and more reliable testing. Work emphasized reproducibility, external interoperability, and streamlined development for robotics applications.
Overall Statistics
Feature vs Bugs
77%Features
Repository Contributions
32Total
Bugs
5
Commits
32
Features
17
Lines of code
841
Activity Months9
Your Network
21 peopleWork History
June 2026
1 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for ihmc-open-robotics-software. Focused on improving demo data relevance and testing efficiency for perception modules. Delivered a feature: updated ZED camera perception demo dataset path to point to a more relevant dataset, enabling better validation for current development tasks. No major bugs fixed this month; maintenance focused on data curation and reproducibility. Impact: faster iteration on perception algorithms, reduced test noise, and easier onboarding for new datasets.
1 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for ihmc-open-robotics-software. Focused on improving demo data relevance and testing efficiency for perception modules. Delivered a feature: updated ZED camera perception demo dataset path to point to a more relevant dataset, enabling better validation for current development tasks. No major bugs fixed this month; maintenance focused on data curation and reproducibility. Impact: faster iteration on perception algorithms, reduced test noise, and easier onboarding for new datasets.
June 2026
March 2026
4 Commits • 2 Features
Mar 1, 2026In March 2026, the ihmc-open-robotics-software workstream delivered four focused items that enhance robustness, observability, and testing fidelity, with clear business value through safer operations and faster debugging/iteration cycles.
March 2026
4 Commits • 2 Features
Mar 1, 2026In March 2026, the ihmc-open-robotics-software workstream delivered four focused items that enhance robustness, observability, and testing fidelity, with clear business value through safer operations and faster debugging/iteration cycles.
February 2026
1 Commits
Feb 1, 2026February 2026 monthly summary for the ihmc-open-robotics-software module focused on stabilizing UI dropdown interactions and preventing crashes related to empty strings in combo boxes.
1 Commits
Feb 1, 2026February 2026 monthly summary for the ihmc-open-robotics-software module focused on stabilizing UI dropdown interactions and preventing crashes related to empty strings in combo boxes.
February 2026
January 2026
7 Commits • 2 Features
Jan 1, 2026January 2026 monthly summary for ihmc-open-robotics-software: Delivered visualization-focused enhancements to demonstrate perception capabilities and fixed key UI issues to improve accuracy and demo readiness. Key improvements include a Rapid Regions Demo Visualization Framework foundation with live rendering of point clouds and image processing, enhanced perception debugging visuals (normals, centroids, region rings) and internal region patch rendering with a streamlined rendering pipeline, and a corrected image flip in the planar regions UI.
January 2026
7 Commits • 2 Features
Jan 1, 2026January 2026 monthly summary for ihmc-open-robotics-software: Delivered visualization-focused enhancements to demonstrate perception capabilities and fixed key UI issues to improve accuracy and demo readiness. Key improvements include a Rapid Regions Demo Visualization Framework foundation with live rendering of point clouds and image processing, enhanced perception debugging visuals (normals, centroids, region rings) and internal region patch rendering with a streamlined rendering pipeline, and a corrected image flip in the planar regions UI.
December 2025
2 Commits • 1 Features
Dec 1, 2025Monthly summary for 2025-12: Focused on strengthening the reliability and observability of Behavior Tree execution within ihmc-open-robotics-software. Implemented robustness for handling both failed and successful leaves, enhanced error logging for non-existent nodes, and stabilized test coverage. These changes improve runtime predictability, speed up debugging, and reduce operator overhead in mission-critical robotics workflows.
2 Commits • 1 Features
Dec 1, 2025Monthly summary for 2025-12: Focused on strengthening the reliability and observability of Behavior Tree execution within ihmc-open-robotics-software. Implemented robustness for handling both failed and successful leaves, enhanced error logging for non-existent nodes, and stabilized test coverage. These changes improve runtime predictability, speed up debugging, and reduce operator overhead in mission-critical robotics workflows.
December 2025
November 2025
3 Commits • 3 Features
Nov 1, 2025November 2025 highlights for ihmc-open-robotics-software: three feature enhancements across physics fidelity, sensor rendering, and VR interaction were delivered, together with targeted bug fixes that improve stability and reliability. These changes increase simulation accuracy, rendering performance, and natural user interactions, delivering measurable business value for user-facing simulations and development workflows.
November 2025
3 Commits • 3 Features
Nov 1, 2025November 2025 highlights for ihmc-open-robotics-software: three feature enhancements across physics fidelity, sensor rendering, and VR interaction were delivered, together with targeted bug fixes that improve stability and reliability. These changes increase simulation accuracy, rendering performance, and natural user interactions, delivering measurable business value for user-facing simulations and development workflows.
October 2025
4 Commits • 3 Features
Oct 1, 2025October 2025 monthly summary for ihmc-open-robotics-software (ihmcrobotics/ihmc-open-robotics-software). Focused on external interoperability, configurability, and maintainability. Key deliveries included: ZEDSVOPlaybackSensor public API exposure (play/pause, startSensor) enabling external control and integration; Kinematics Streaming Toolbox (KST) with new configuration options and an optional ROS2 node for ROS2 workflows; and RDXImagePanel cleanup to reduce technical debt without altering behavior. Major bug fix: resolved a compile error associated with ZEDSVOPlaybackSensor during exposure work, improving build stability. These changes deliver measurable business value by enabling smoother external integration, faster deployment, and cleaner codebase. Technologies/skills demonstrated include API design for public surface, ROS2 integration considerations, and targeted refactoring for maintainability.
4 Commits • 3 Features
Oct 1, 2025October 2025 monthly summary for ihmc-open-robotics-software (ihmcrobotics/ihmc-open-robotics-software). Focused on external interoperability, configurability, and maintainability. Key deliveries included: ZEDSVOPlaybackSensor public API exposure (play/pause, startSensor) enabling external control and integration; Kinematics Streaming Toolbox (KST) with new configuration options and an optional ROS2 node for ROS2 workflows; and RDXImagePanel cleanup to reduce technical debt without altering behavior. Major bug fix: resolved a compile error associated with ZEDSVOPlaybackSensor during exposure work, improving build stability. These changes deliver measurable business value by enabling smoother external integration, faster deployment, and cleaner codebase. Technologies/skills demonstrated include API design for public surface, ROS2 integration considerations, and targeted refactoring for maintainability.
October 2025
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for ihmc-open-robotics-software. Focused on stabilizing the RDX SCS 2 video visualizers workflow within the perception panel. No new features were released this month; primary effort targeted a critical bug fix to ensure newly created video visualizers are automatically added to the perception visualizers panel, improving visibility and management of video streams in the simulation environment. The patch reduces manual steps and enhances reliability during runtime.
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for ihmc-open-robotics-software. Focused on stabilizing the RDX SCS 2 video visualizers workflow within the perception panel. No new features were released this month; primary effort targeted a critical bug fix to ensure newly created video visualizers are automatically added to the perception visualizers panel, improving visibility and management of video streams in the simulation environment. The patch reduces manual steps and enhances reliability during runtime.
August 2025
9 Commits • 5 Features
Aug 1, 2025August 2025: Delivered a set of UI, visualization, ROS integration, and code quality improvements in ihmc-open-robotics-software, enabling clearer log analysis, broader UI accessibility, richer robot-state visualization, safer ROS 2 subscriptions, and a cleaner codebase. Key features delivered include: RDX SCS2 Log Session UI Enhancements to improve log scrubbing, buffer display, and navigation; VR and ImGui UI usability improvements to make VR panels accessible outside VR and to tune UI notch sizing; KST Visualizer integration with ROS 2 to render ghost models and visualize robot states from ROS 2 subscriptions; ROS 2 Notifications API enhancement introducing createNotificationSubscription along with a delegating helper and thread-safety improvements; Internal refactors and imports cleanup including adding a MutableReferenceFrame constructor, removing unused imports, and fixing imports. Impact: faster debugging, more versatile operator workflows across VR and non-VR, safer concurrent code paths, and a cleaner, more maintainable codebase. Technologies/skills demonstrated: ImGui and VR UI integration, ROS 2 data subscriptions, KST visualizer with ghost-model rendering, thread-safety improvements, API design for notifications, and code refactoring for hygiene and maintainability.
9 Commits • 5 Features
Aug 1, 2025August 2025: Delivered a set of UI, visualization, ROS integration, and code quality improvements in ihmc-open-robotics-software, enabling clearer log analysis, broader UI accessibility, richer robot-state visualization, safer ROS 2 subscriptions, and a cleaner codebase. Key features delivered include: RDX SCS2 Log Session UI Enhancements to improve log scrubbing, buffer display, and navigation; VR and ImGui UI usability improvements to make VR panels accessible outside VR and to tune UI notch sizing; KST Visualizer integration with ROS 2 to render ghost models and visualize robot states from ROS 2 subscriptions; ROS 2 Notifications API enhancement introducing createNotificationSubscription along with a delegating helper and thread-safety improvements; Internal refactors and imports cleanup including adding a MutableReferenceFrame constructor, removing unused imports, and fixing imports. Impact: faster debugging, more versatile operator workflows across VR and non-VR, safer concurrent code paths, and a cleaner, more maintainable codebase. Technologies/skills demonstrated: ImGui and VR UI integration, ROS 2 data subscriptions, KST visualizer with ghost-model rendering, thread-safety improvements, API design for notifications, and code refactoring for hygiene and maintainability.
August 2025
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Quality Metrics
Correctness90.6%
Maintainability88.8%
Architecture86.8%
Performance85.6%
AI Usage23.2%
Skills & Technologies
Programming Languages
Java
Technical Skills
3D GraphicsBug FixingCode RefactoringComputer VisionConcurrencyConfiguration ManagementDebuggingError HandlingFront-end DevelopmentGame DevelopmentImGuiJavaJava DevelopmentJava programmingKinematics
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