That is, we envisioned to understand the brain as a series of milestones and started with the first one. "It is a very ambitious goal, I know, so in order to tackle it, we did what is usual in science.
"The long-term goal of our research team at LCAD is to understand how the human brain works," Alberto Ferreira De Souza, one of the researchers who carried out the study, told TechXplore. This novel technique, called map decay, is inspired by current empirical knowledge of the human brain's memory architecture.
Researchers at Laboratório de Computação de Alto Desempenho (LCAD) of Universidade Federal do Espírito Santo (UFES), in Brazil, have devised a novel strategy for correcting imperfections in occupancy grid maps by correcting invalid occupancy probabilities of map cells that are unobservable by sensors. If map decay is employed, the cells marked as obstacles slowly fade away as they decay to the offline map values (see figures (d), (f), and (h)). If map decay is not employed, cells to the left of the car (red rectangle) are marked as obstacles and are not set as free again because they fall into a sensor blind spot (see figures (c), (e) and (g)). The remaining images (figures (c) to (h)) show IARA’s online map in the same situation (different from (a) and (b), blue regions in the map are cells not touched by the sensors). In these images, blue dots represent the points of the Velodyne readings and red boxes represent the cells with high occupancy probability.
The images in figures (a) and (b) show a 3D visualization of the overtaking. Zoning Districts Zoning Districts Height & Bulk Districts Height & Bulk Districts Special Use Districts Special Use Districts Special Sign Districts Special Sign Districts Sign Programs Sign Programs Legislated Setbacks Legislated Setbacks Coastal Zone Coastal Zone Community Benefit Districts Community Benefit Districts Cultural Heritage Districts Cultural Districts Curb Cuts - PC Section 155(r) Curb Cuts - PC Section 155(r) Curb Cuts - Policy 5.1.2 Curb Cuts - Policy 5.1.Comparison of the online mapping system output with and without map decay in an overtaking situation.
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