Temporal Sensor ROI Processing for Lower Scan Latency
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Solution Overview
Problem
Temporal sensors experience latency-related issues when capturing data over time, leading to delayed processing of dynamic scenes due to the need for complete scans before data can be utilized.
Innovation Solution
Prioritize and process sensor data from specific regions of interest identified based on vehicle trajectory, object presence, or predicted events, allowing immediate processing of relevant data while discarding or reducing frequency of less important data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complete scan data is processed before utilization, then data completeness is improved, but processing latency increases
Solution Approach 1:
The patent segments the complete sensor scan data into multiple portions corresponding to different regions of interest. Each portion is processed independently and immediately when relevant, rather than waiting for the complete scan to finish. This segmentation allows critical regions to be processed with lower latency while non-critical regions are processed later or discarded.
Solution Approach 2:
The patent applies partial action by processing only the necessary portions of the sensor data that correspond to regions of interest, rather than processing the entire complete scan. This selective processing reduces latency for critical decisions while avoiding the time cost of processing irrelevant data portions.
2Reliability
If all sensor data is processed, then comprehensive analysis is improved, but computing resource consumption increases
Solution Approach 1:
The patent applies local quality by assigning different processing priorities and resource allocations to different regions of the sensor data based on their importance. Regions of interest receive full processing resources and comprehensive analysis, while non-critical regions receive reduced processing or are discarded entirely. This selective resource allocation maintains comprehensiveness for critical areas while reducing overall computing consumption.
Solution Approach 2:
The patent processes only the necessary portions of sensor data that correspond to regions of interest, determined by factors such as vehicle trajectory, object presence, and predicted events. This partial processing approach maintains analysis comprehensiveness for relevant areas while avoiding the excessive resource consumption of processing all sensor data uniformly.
3Measurement precision
If processing waits for complete scan completion, then data accuracy is improved, but reaction speed deteriorates
Solution Approach 1:
The patent performs preliminary processing of sensor data portions corresponding to regions of interest before the complete scan finishes. By identifying regions of interest in advance (based on trajectory, object presence, events) and processing them immediately, the system achieves faster reaction speeds for critical decisions while maintaining sufficient data accuracy through selective processing of relevant portions.
Solution Approach 2:
The patent processes only the necessary portions of sensor data that correspond to regions of interest rather than waiting for complete scan completion. This partial processing approach improves reaction speed for critical areas by processing available data immediately, while accepting that non-critical regions may be processed later or discarded.
Data Source
AI summary
Techniques for reducing latency associated with temporal sensor data processing. The techniques may include determining a region of interest within a field of view of a temporal sensor (e.g., rotating lidar sensor, rolling shutter camera, etc.). Based at least in part on determining the region of interest, an azimuth angle associated with a partial scan of the temporal sensor may be determined such that the region of interest is disposed within the azimuth angle. The techniques may also include receiving sensor data from the temporal sensor and determining whether the sensor data corresponds with the azimuth angle/region of interest. Based at least in part on a determination that the sensor data corresponding with the azimuth angle/region of interest has been received, the sensor data may be processed prior to at least one of receiving additional sensor data or a completion of a full scan by the temporal sensor.