Detection of the Group of Traffic Signs with Central Slice Theorem
This is an incremental improvement for traffic sign detection systems, specifically targeting signs with 45-degree stripes that indicate road restrictions.
The paper tackles the problem of detecting traffic signs with 45-degree stripes using a sensor system combining Photonic Mixer Device and Mono cameras, achieving detection through Radon transformation calculated with the Central Slice Theorem and approximated with Discrete Cosine Transformation.
Our sensor system consists of a combination of Photonic Mixer Device - PMD and Mono optical cameras. Some traffic signs have stripes at 45{deg}. These traffic signs cancel different restrictions on the road. We detect this class of signs with Radon transformation. Here the Radon transformation is calculated using Central Slice Theorem. We approximate the slice of spectrum by the Discrete Cosine Transformation (DCT).