Maximizing Autonomous Vehicle Development with Kognic's Human Feedback Platform

At Kognic, we're committed to accelerating autonomous vehicle perception development through superior data quality and efficient scenario discovery. As machines learn faster with human feedback, we've built the industry's most productive annotation platform for autonomy data, helping you extract maximum value from your dataset budget and drastically reduce development time for ADAS and AD systems.

What makes human feedback critical for autonomy development? How can you overcome the data bottleneck? And how does Kognic transform your perception development process? Discover the answers in this article. Ready to revolutionize your autonomy data strategy? Reach out to discuss your specific challenges.

Conquering the Long Tail Challenge in Autonomous Driving

The real world presents uneven data distribution challenges for autonomous systems. While urban environments reliably offer abundant examples of common objects like vehicles and pedestrians, self-driving vehicles must also navigate safety-critical edge cases—crossing animals, children on bicycles, or unexpected obstacles like the occasional Nordic reindeer. The defining challenge in autonomous driving development is effectively handling this long tail of rare but potentially life-critical events.

A reindeer walking on a snow-covered road. Although it’s a rare occasion, self-driving cars must be able to deal with such situations.

A reindeer crossing a snow-covered road represents exactly the type of rare but safety-critical scenario autonomous vehicles must confidently handle in production.

Machine learning models perform optimally when trained on balanced datasets. This means your training data should intentionally over-represent rare-but-important scenarios compared to their real-world frequency. It's also crucial to understand that neural networks require multiple exposures to specific scenarios to properly encode them—otherwise, these critical examples will be forgotten when optimizing for more common cases. For the reindeer crossing example, sufficient annotated instances must be collected to ensure reliable detection, even though such encounters might be exceedingly rare in operation.

The distribution of LiDAR points per class in the NuScenes dataset. One can see that there are many more points on cars and trucks than on animals and ambulances.

This visualization of LiDAR point distribution from the NuScenes dataset clearly illustrates the data imbalance challenge—common objects like cars and trucks receive substantially more sensor attention than rare but important classes like animals and emergency vehicles.

Strategic Data Selection for Validation and Efficient Discovery

Validation represents another critical dimension of data selection. Autonomous vehicles operate across diverse scenarios and must demonstrate reliable performance throughout their entire Operational Design Domain (ODD). The NHTSA provides comprehensive guidance for defining an ODD in their "Framework for Automated Driving System Testable Cases and Scenarios." Meeting these standards requires thorough testing coverage across all ODD elements and behavioral competencies outlined by regulatory authorities.

A small subset of behaviours self-driving cars need to manage as recommended by the NHTSA (taken from the Waymo safety report)

This subset of behavioral competencies represents just a fraction of the complex scenarios autonomous systems must master, as outlined in Waymo's safety framework.

Current industry practices often involve teams manually reviewing countless hours of fleet recordings or conducting "labeling safaris"—deploying vehicles specifically to capture challenging scenarios the system struggles with. While searching Swedish forests for roadway reindeer might sound appealing, these approaches consume enormous resources in both time and budget. Kognic transforms this process by enabling development teams to efficiently search previously collected but unannotated fleet data, making traditional labeling safaris obsolete.

Our data coverage platform dramatically accelerates scenario discovery while allowing you to organize findings into purpose-built datasets for targeted algorithm training or evaluation. One-click labeling requests streamline the annotation process, and our intuitive interface enables developers to instantly flag interesting scenarios and add them to multiple data collections for future model refinement or benchmarking.

Accelerate Development with Model-Guided Active Learning

Understanding what your perception models are learning—and where they struggle—presents significant challenges. That's why Kognic enables you to upload both model predictions and uncertainty metrics for each frame and object. This powerful capability lets you filter unannotated data based on model performance, providing unprecedented insights into your model's biases, potential blind spots, and which data segments should be prioritized for annotation.

Integrating model predictions into your data search creates a performance "bootstrap" effect—continuously identifying where your model makes mistakes and targeting those areas for annotation. By focusing on objects near decision boundaries through uncertainty metrics, you can strategically allocate annotation resources to the exact frames that will deliver the greatest performance improvements.

Advanced Discovery through Visual Similarity and Natural Language Search

When engineering teams identify problematic scenarios, they typically have only isolated examples, with no efficient way to find similar situations without extensive data combing or expensive collection efforts. Kognic's data selection platform addresses this challenge with two powerful capabilities:

  • Visual similarity search across your entire dataset
  • Natural language query functionality for intuitive data exploration

Our experience shows that combining these approaches yields the most effective results—using natural language to identify initial scenarios of interest, then refining through visual similarity to build comprehensive training sets.

A compelling demonstration of our platform's capabilities can be seen in the following example. By searching for "a caravan" in unannotated data—a known detection challenge—we identified not only expected vehicles but also roadside recycling stations common in Munich that visually resemble caravans. By searching for visually similar objects, we discovered additional recycling stations that could be sent for annotation, allowing the model to learn these are false positives rather than actual caravans.

The results in our data for a natural language search of ‘a caravan’

Results from our natural language search for "a caravan" in unannotated data—revealing both expected vehicles and unexpected false positives.

The results in our data for a search for similar objects as the recycling station. You can see that we find both more recycling stations as well as other interesting objects for labeling.

Visual similarity search results based on the recycling station—enabling efficient collection of similar confusing objects for targeted model improvement.

Transform Your Perception Development Flywheel

The Kognic platform powers what we call your "data engine"—an iterative process of identifying model weaknesses, strategically annotating relevant data, and continuously evaluating performance improvements. This approach dramatically accelerates perception development while optimizing annotation budgets. We're passionate about reducing the cost of achieving both exceptional perception performance and comprehensive validation coverage that satisfies the most demanding regulatory requirements.

Ready to experience how Kognic can transform your autonomy development process? Contact us to discuss your specific challenges or arrange a platform demonstration with your own data.