Driver Assistance Object Detection via Pre-Training and Simulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Driver assistance systems in vehicles face reduced performance in detecting real-world objects due to systematic differences between simulated and real data, leading to suboptimal object recognition rates.
Innovation Solution
A method combining pre-training with real sensor data to learn stable representations and subsequent training with simulated data to refine object classification, optimizing the classification algorithm's performance on real data by iteratively improving both allocation assignment and object differentiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If classification algorithms are trained exclusively with simulated data, then training efficiency and coverage of target scenarios are improved, but detection performance on real data deteriorates due to systematic differences between simulated and real data
Solution Approach 1:
The patent applies preliminary action by first pre-training the classification algorithm with real sensor data to learn stable representations of real-world objects and conditions. This preliminary training with authentic data establishes a foundation that accounts for real data characteristics before the algorithm is trained with simulated data, thereby resolving the systematic differences between simulated and real data that would otherwise degrade detection performance.
Solution Approach 2:
The patent uses an intermediary approach by introducing a two-stage training process where real sensor data serves as an intermediary bridge. The algorithm first learns from real data, then transitions to simulated data training. This intermediary real-data training phase mediates between the authenticity of real data and the efficiency of simulated data, allowing the system to leverage both advantages while mitigating their respective disadvantages.
2Measurement precision
If manual preparation of recorded real data is used for training, then detection accuracy on real objects is improved, but time consumption and financial investment increase significantly
Solution Approach 1:
The patent applies copying by using simulated data as a substitute copy of real sensor data for training purposes. Instead of manually preparing and labeling extensive real data, the system generates simulated sensor data that replicates real-world scenarios. This copying approach maintains detection accuracy by preserving the essential characteristics of real data while dramatically reducing the time and resources required for data preparation.
Solution Approach 2:
The patent employs parameter changes by systematically varying parameters in the simulated data generation process to match real-world conditions. By adjusting simulation parameters to reflect authentic sensor characteristics, environmental conditions, and object properties, the simulated data achieves sufficient fidelity to real data for effective training, thereby maintaining detection accuracy while avoiding the extensive manual data preparation process.
Data Source
AI summary
The disclosure relates to a method for operating a driver assistance system of a motor vehicle. The method includes detecting a first data set of sensor data measured by a sensor device of the driver assistance program. The first data set of sensor data includes missing class allocation information, wherein the class allocation information relates to the objects represented by the sensor data. The method also includes pre-training a classification algorithm of the driver assistance system while taking into consideration the first data set in order to improve the object differentiation of the classification algorithm. The method further includes generating a second data set of simulated sensor data which includes at least one respective piece of class allocation information according to a specific specification. The method also includes training the classification algorithm of the driver assistance system while taking into consideration the second data set in order to improve an allocation assignment of the classification algorithm for objects differentiated by the classification algorithm. The method further includes improving the detection of objects, which are represented by additional measured sensor data, by the driver assistance system.
