Abandoned Object Detection

In the current fast paced life, security has become an important aspect which cannot be ignored. One of the usually neglected but important division of security in public areas involves the unattended objects. Bombs and other harmful objects that are incendiary cause great harm. And in most of the cases such objects are left unattended for some time before causing harm. As such, unattended objects should be given importance and must be checked to ensure safety. This paper shows a method to identify unattended objects in public areas. This is done by comparing a fixed/initial background frame with frames after a fixed interval. If there is a change in the frames, then that refers to an attended object. No change observed, proves an unattended object which is highlighted by a box. This is done with the help of blob analysis. This paper does this with the help of MATLAB. MATLAB being a software accessible to wide range of people provides an easy process with moderate results. It uses a wide range of predefined functions and toolboxes to do this.

Abandoned structures: tools for reuse and repurposing of buildings in Slovak municipalities

In this article, we aim to analyse the state of abandoned properties in Slovak municipalities and present possible solutions for this issue. In the theoretical part, we define abandonment and the tools for abandonment based on the current literature review. Building on this framework, the paper analyses the towns and villages of selected Slovak region, that being Banská Bystrica self-governing region. To map abandoned properties located in a selected region, as well as to identify emotional value of these building and the instruments needed for their reconstruction or removal, a questionnaire was sent to the mayors of all municipalities of over 1,000 inhabitants in the region of Banská Bystrica – a total of 115 municipalities in 2019. This concentrated research on one region enabled us to have a closer look at the status of abandoned structures in municipalities in a typical area of Central and Eastern Europe. We compare the issue of abandonment in the commuter zone (the two largest cities in the regions and their surrounding) and the hinterlands. Research has shown that the population in the hinterlands is declining more than in the commuter zone, but more abandoned buildings are located in municipalities in the commuter zone. Buildings in need of repair that are important for the inhabitants (e.g. from the point of view of history), are registered in their municipality by 93% of mayors in the commuter zone and 84% in the hinterlands. The most frequent obstacles to repairing these buildings are considered by the mayors in both zones the many number of owners who cannot agree on a plan for saving the objects. The quantitative research is completed with an illustration of an abandoned object in Banská Bystrica.

A Fuzzy rule- based Abandoned Object Detection using Image Fusion for Intelligent Video Surveillance Systems

Abandoned object/luggage is a major threat in all public scenes like hospitals, railway stations, airports and shopping malls. Abandoned luggage may contain explosive, biological warfare or smuggled goods. Abandoned object detection is the process to identify the unattended strange object within a specific time. It is also crucial to identify the person who has abandoned the luggage in the scene. Video surveillance is one of the essential techniques for automatic video analysis to extract crucial information or relevant scenes. The main objectives of this work is the automatic detection of abandoned objects and related persons in public areas like airports, railway stations, shopping malls etc. Video enhancement techniques like residual dense networks are adopted to improve the quality of the image before applying it to detect the abandoned objects and related humans. The scenario of abandoned objects and related humans are identified through distance differencing methods. Once the scene is identified, the method is capable of producing alert messages or alarms in real-time through automated means. A fuzzy rule based threat assessment module is also incorporated in this work which reduces the false alarm rate. The related person is identified through reconstruction of the face through super-resolution techniques. Experiments are found to be appreciable in terms of the metrics in video enhancement, detection, fuzzification and face super-resolution.

A Survey on Abandoned Objects Detection from CCTV Surveillance

Computer Vision is an important and challenging area of ​​research in image processing applied to analytical video. Image data comes from CCTV surveillance which is spread in public places owned by the government, private sector and the public. Supervision is carried out to monitor anomalies in the surrounding environment such as abandoned objects, crowds, theft and others. An abandoned object is one of the anomalies that is important to monitor because it can be categorized as a danger and can also prevent theft of the object left behind, therefore automatic monitoring is needed to prevent adverse events from occurring. In the last decade, a number of publications have been presented in the field of intelligent visual surveillance to detect abandoned objects (AOD). In this paper, we present a state-of-the-art showing the overall progress of the detection of objects that were abandoned or removed from surveillance video in recent years. We include a brief introduction to the detection of abandoned objects with their problems and challenges. The aim of this paper is to provide a review of the literature in the field of recognition of abandoned objects of visual surveillance systems with a general framework for researchers in this field.

ABANDONED OBJECTS. FROM UTOPIA TO REALITY: VIABILITY CRITERIA

The article discusses the change in the architectural typology of abandoned objects over time. The influence of time on their town-planning position and typological components - function, design and form are analyzed. Abandoned object - a structure created by man, but not in use today. They went their way “ from reality to utopia.” An attempt is made to figure out why this happened and whether the return path is possible - “ from utopia to reality”. In conclusion, the concepts of general and environmental criteria for assessing the viability of abandoned objects are introduced, and on their basis the concept of the architectural and typological potential of a structure is formulated.