Video-based Traffic Sign Detection, Tracking and Recognition

Detecting and recognising objects in natural scenes is a challenging machine vision problem. The complexity of this problem grows even more when an additional real-time processing requirement is to be met. This is common in all kinds of trafficrelated applications and in the driver support systems in particular, as a rapid decision may have a critical impact on the safety of a human. Computationally efficient image and video processing requires smart algorithms. Frequently, these algorithms must strike a balance between complexity and accuracy and the limitations arising from this compromise must be compensated elsewhere, e.g. through an efficient modelling of temporal dependencies between the consecutive frame observations. In this work, the area of visual object detection, tracking and recognition in the traffic environment is explored. The primary focus is put on the problem of video-based traffic sign recognition (TSR), which is one of the major tasks in the contemporary visual driver assistance systems. Certain algorithms hereby presented are used for solving related problems, such as pedestrian detection or classification o

Pierwsze stwierdzenie Caplothorax lugubris (Murray, 1864) (Coleoptera: Nitidulidae) w Polsce

First record of Caplothorax lugubris (Murray, 1864) (Coleoptera: Nitidulidae) in Poland. An invasive species of sap beetle, Caplothorax lugubris (Murray, 1864) was found on fermenting oak sap in a Buczyny Skoroszowskie forest complex. The species is native to Americas, and was recorded in Europe in 2011 for the first time

In-vehicle camera traffic sign detection and recognition

In this paper, we discuss theoretical foundations and a practical realization of a real-time traffic sign detection, tracking and recognition system operating on board of a vehicle. In the proposed framework, a generic detector refinement procedure base

Construction of Hardware Components for the Internet of Services

In this paper we focus on a hardware realization of web services (WS) and their integration within the service-oriented architecture (SOA). Previous approaches to the implementation of network-enabled services in hardware covered only very specific types of applications and were platform-dependent. Our contribution is a generic framework where heterogeneous everyday objects are enhanced with appropriate hardware extensions. This turns them into intelligent electronic devices that can sense the environment as well as interact with it, exposing their functionality via public WS interface. An integration scheme is introduced to allow the augmented objects to be used within highly distributed enterprise applications. Each web service is mapped to a functionally equivalent Open Services Gateway initiative (OSGi) service so that it can be dynamically added to the pool of elementary services accessible within the enterprise service bus (ESB). Our approach is exemplified by several web services for environment monitoring, mechanical control and visual inspection, all implemented in a reconfigurable hardware. A case study of integrating and using such services is also presented