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Kotakku

PROFILE

Kotakku

Kotakkucu developed advanced autonomous driving features across the autoware.universe and tier4/autoware_launch repositories, focusing on planning, safety, and configurability. Over five months, they engineered modules for crosswalk behavior, road user stopping, and static obstacle avoidance, using C++ and ROS 2 to integrate parameterized planning and real-time visualization. Their work included enhancements to PlanningFactor reporting, collision detection, and virtual wall handling, as well as public API exposure for cross-component reuse. By refining configuration management and introducing flexible runtime parameters, Kotakkucu improved vehicle behavior, debugging visibility, and deployment readiness, demonstrating depth in robotics software architecture and system integration.

Overall Statistics

Feature vs Bugs

86%Features

Repository Contributions

33Total
Bugs
3
Commits
33
Features
19
Lines of code
107,628
Activity Months5

Work History

October 2025

11 Commits • 6 Features

Oct 1, 2025

Monthly Summary for 2025-10: Key features delivered: - autoware.universe: Static Obstacle Avoidance extended to handle parking violations and VRUs, with new parameters and data structures for识别 and handling (commits: c70d6a33db692a88c4c4589c7fb652db6b1f6a70). - autoware.universe: Stopped Road Users, Virtual Wall Handling, and Front-Polygon Collision Detection enhancements including tracking for stopped VRUs, ego arrival at virtual walls, improved stop obstacle filtering (allow passage after a duration), and front-facing polygon collision checks (front bumper) while excluding ego sides from detection area; updated documentation (commits: 65d562d6409072e870246213152a09b70a346df4; bb51db2617f080f017debafc1a0916734ec4828e; e1ad77f107d7727bfab894375610775c006c7a3c). - autoware.universe: Blind Spot Stop Line Generation Bug Fix to prioritize traffic light lines and avoid conflicts with instant stop lines (commit: 3fa41b1a5da23f885f55150d6b49b3b489dc48fb). - tier4/autoware_launch: Parking violation vehicle avoidance configuration introducing a new parameter to control ego response (auto/manual/ignore) for parking-violation vehicles (commit: 6a60a23ec89aba54f2ef45a89c58ec862ee94a27). - tier4/autoware_launch: Stopped road user tracking thresholds in road_user_stop configuration to refine stop criteria, positional tolerance, and ego/virtual wall proximity (commit: 0a79f18f553b1a9a08e9fb61016efae467e2bf08). - autoware.core: Public API exposure for calculate_error_poses by moving it to the header, enabling reuse across components and ego pose error estimation based on time-to-convergence (commit: c15de78f8a4b93ce21a7d26440eb8eb9c0032494). - tier4/tier4_ad_api_adaptor: Autoware API Extension expanded planning factors for safer routing, adding road_user_stop factor and three intersection-related factors (intersection collision checking, occlusion, rear collision checking) to the API extension configuration (commits: cb1634a6fe6f1e4b8bd82f73d2c9eaf11ca3b908; c90ecea7daf88d617f76ef2b33dbfaf6207fbbce). Major bugs fixed: - Blind Spot Stop Line Generation bug fix improved reliability and safety (commit: 3fa41b1a5da23f885f55150d6b49b3b489dc48fb). Overall impact and accomplishments: - Strengthened safety and planning capabilities across multiple repos with configurable behavior for parking-violation vehicles, VRUs, and complex intersections. - Enabled reuse and broader adoption through public API exposure and expanded API extension planning factors, improving cross-component integration and decision-making under time pressure. - Documentation updates accompany feature work to reduce onboarding time and enable consistent usage. Technologies/skills demonstrated: - C++, ROS-based module integration, and parameterization of runtime behavior. - API design and public exposure (headers) for cross-component reuse. - Front- and rear- angle collision detection strategies and virtual wall handling. - Cross-repo collaboration and feature-driven development with a focus on business safety and routing performance.

September 2025

7 Commits • 4 Features

Sep 1, 2025

September 2025 monthly performance snapshot focusing on safety, planning quality, and visualization improvements across Autoware Foundation’s core repositories. The month delivered several high-impact features, critical bug fixes, and configurable capabilities that improve vehicle behavior, debugging visibility, and operational flexibility for different use cases. Key outcomes: - Planning robustness improved through targeted fixes and refinements in the autoware.universe planning stack. - Visualization and debugging capabilities expanded to better understand and tune behavior in unknown or dynamic scenarios. - Configurability introduced to adapt to different deployment needs without code changes.

August 2025

4 Commits • 4 Features

Aug 1, 2025

Monthly summary for 2025-08: Key features delivered across autoware.universe and autoware_launch included configuration cleanups, visibility enhancements for safety factors, and stabilization of stop poses, with a visualization upgrade to PlanningFactor across RViz. These changes reduce configuration drift, improve safety and planning visibility, and standardize tooling across repos. Key improvements and commits are listed below.

July 2025

9 Commits • 3 Features

Jul 1, 2025

July 2025 delivered key features to improve planning visibility, safety, and deployment reliability across core Autoware modules. PlanningFactor Reporting Enhancements were implemented across multiple planners (goal_planner, start_planner, lane_change, intersection_module, and static_obstacle_avoidance), adding richer PlanningFactor data, tests, and refined publish conditions. Duplicates and backward planning issues were addressed to ensure consistent data flow and easier debugging. The Road User Stop module was introduced to safely halt the ego vehicle when pedestrians, cyclists, or other road users appear in the planned trajectory, with parameterization for stop planning and obstacle filtering. Launch and configuration support for road_user_stop was added in autoware_launch to enable controlled stopping, opposing traffic handling, object filtering, and virtual wall visualization. These changes collectively enhance safety, analytics, and deployment readiness, delivering measurable business value and technical robustness.

June 2025

2 Commits • 2 Features

Jun 1, 2025

June 2025 monthly summary focusing on crosswalk-related improvements across two Autoware repositories. Implemented crosswalk configuration parameter renaming for clarity with no behavioral changes in tier4/autoware_launch. In autowarefoundation/autoware.universe, renamed 'stuck vehicle' to 'obstruction prevention' in the crosswalk module and enhanced the PlanningFactor topic to include object IDs and stopping reasons, improving transparency in decision-making. This cycle also included documentation updates to reflect the new naming and parameter changes.

Activity

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Quality Metrics

Correctness87.6%
Maintainability86.6%
Architecture86.6%
Performance76.4%
AI Usage21.2%

Skills & Technologies

Programming Languages

C++CMakeMarkdownPythonSVGShellXMLYAMLyaml

Technical Skills

Autonomous DrivingBehavior PlanningBehavioral PlanningC++C++ DevelopmentCode DocumentationCollision DetectionConfiguration ManagementData VisualizationDebuggingDocumentationGUI DevelopmentGeometry ProcessingLanelet2Motion Planning

Repositories Contributed To

5 repos

Overview of all repositories you've contributed to across your timeline

autowarefoundation/autoware.universe

Jun 2025 Oct 2025
5 Months active

Languages Used

C++CMakeSVGYAMLMarkdown

Technical Skills

Autonomous DrivingBehavior PlanningC++ DevelopmentCode DocumentationROS 2Software Refactoring

tier4/autoware_launch

Jun 2025 Oct 2025
5 Months active

Languages Used

YAMLyamlShellXML

Technical Skills

Configuration ManagementSystem IntegrationRViz ConfigurationShell Scripting

tier4/tier4_ad_api_adaptor

Oct 2025 Oct 2025
1 Month active

Languages Used

YAML

Technical Skills

Configuration ManagementSystem Configuration

autowarefoundation/autoware_tools

Sep 2025 Sep 2025
1 Month active

Languages Used

Python

Technical Skills

Data VisualizationGUI DevelopmentRobotics

autowarefoundation/autoware.core

Oct 2025 Oct 2025
1 Month active

Languages Used

C++

Technical Skills

C++Software Architecture

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