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  • SPIKING REPRESENTATIONS COMPARISON FOR LOCALIZATION AND NAVIGATION IN THE KEYFRAME MAP

    I.S. Fomin , V.D. Matveev , А.Е. Arkhipov
    273-284
    2025-10-01
    Abstract ▼

    The task of navigating a mobile robotic platform in a known environment has been efficiently solved for a long time and using a flat passability map, which is built using lidar. Nevertheless, situations regularly arise when, for one reason or another, the platform is not equipped with lidar or other active navigation tools. At the same time, a camera is usually installed on the robotic platform, designed for visual monitoring of the situation by the operator, which can also be used for navigation when moving the robot in a known environment. There are well-known examples of navigation algorithms based on the use of sequences of keyframes, for example, visual SLAM. At the same time, various variants of video images (blurred, masked, etc.) are considered as keyframes. In this paper, a cognitive (non-metric, non-spatial) map of keyframes representing a spiking representation of the observed images is considered as a base for navigation. The possibility of using neuromorphic information control elements developed at the RTC to compare the current spiking representation with all spiking representations of a key sequence is analyzed. It is shown that by such a comparison, the keyframe closest to the current one can be determined, and parameters for the shift of spiking representations can also be selected, which is an analog of localization and navigation for a cognitive map. The description of a software tool for emulating the construction of a map and moving in it for experimental testing of the proposed algorithms is given. Data collection and experimental evaluation of the quality of localization and navigation algorithms have been performed. To do this, we have collected several keyframe maps with different patterns of movement between frames. When determining the position of the frame in the map, the quality was from 70 to 98%, when determining the direction of displacement between frames, the accuracy was from 94 to 97%. The results obtained are assessed as sufficient to solve the tasks assigned to the algorithm.

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