Robert bosch gmbh (20240134049). METHOD FOR RECOGNIZING A TRAFFIC SIGN BY MEANS OF A LIDAR SYSTEM simplified abstract

METHOD FOR RECOGNIZING A TRAFFIC SIGN BY MEANS OF A LIDAR SYSTEM

Organization Name

robert bosch gmbh

Inventor(s)

Johannes Richter of Renningen (DE)

METHOD FOR RECOGNIZING A TRAFFIC SIGN BY MEANS OF A LIDAR SYSTEM - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240134049 titled 'METHOD FOR RECOGNIZING A TRAFFIC SIGN BY MEANS OF A LIDAR SYSTEM

Simplified Explanation

The patent application describes a method for recognizing a traffic sign using a lidar system that senses the intensity level of light signals, including multiple light signal points. The method involves:

• Ascertaining the reflection degree of each light signal data point
• Comparing the reflection degrees with a predefined reflectivity limit value
• Marking points exceeding the limit as belonging to a retroreflector
• Determining the size of the retroreflector from the marked points
• Recognizing the retroreflector as a traffic sign based on its size

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1. 1. 1. Potential Applications

• Traffic sign recognition systems
• Autonomous vehicles
• Road safety technologies

1. 1. 1. Problems Solved

• Accurate and efficient traffic sign detection
• Improved road safety measures
• Enhanced autonomous driving capabilities

1. 1. 1. Benefits

• Increased accuracy in identifying traffic signs
• Enhanced safety for drivers and pedestrians
• Improved efficiency in autonomous vehicle operations

1. 1. 1. Potential Commercial Applications
         1. Traffic Sign Recognition Systems for Autonomous Vehicles

1. 1. 1. Possible Prior Art

There are existing lidar systems used for object detection and recognition in various industries, but specific applications for traffic sign recognition may be limited.

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1. 1. 1. Unanswered Questions

1. 1. 1. 1. How does this method perform in different weather conditions?

The abstract does not mention how the lidar system's performance may be affected by factors like rain, fog, or snow.

1. 1. 1. 1. What is the processing time for recognizing a traffic sign using this method?

The abstract does not provide information on the speed or efficiency of the traffic sign recognition process with the lidar system.

Original Abstract Submitted

a method for recognizing a traffic sign by means of a lidar system. the lidar system is designed to sense an intensity level of a light signal detected in the lidar system, the light signal including a plurality of light signal points. the method includes the following steps: a) ascertaining a degree of reflection of each light signal data point from the intensity level thereof; b) comparing the ascertained degrees of reflection with a predefined reflectivity limit value; c) if the predefined reflectivity limit value is exceeded, marking the corresponding light signal data point as belonging to a retroreflector; d) ascertaining a size of the retroreflector from the marked light signal data points. e) recognizing the retroreflector as a traffic sign as a function of the ascertained size of the retroreflector.