A method for localizing a reference object in a current image with several bright objects

Abstract

Запропоновано метод формування унімодальної вирішальної функції при прив'язці кореляційно-екстремальних систем навігації до поверхні візуван-ня з кількома яскравими об'єктами. Обрано моделі поточного та еталон-ного зображень, здійснено постановку і вирішено завдання виявлення та бага-топорогової селекції об'єкта прив'яз-ки на зображенні з високою об'єкто-вої насиченістю. Одержано кількісні оцінки ймовірності локалізації об'єкта прив'язки на зображенні Ключові слова: поточне зображен-ня, виявлення та багатопорогова се-лекція об'єкта прив'язки, унімодальна вирішальна функція Предложен метод формирования унимодальной решающей функции при привязке корреляционно-экстремаль-ных систем навигации к поверхности визирования с несколькими яркими объектами. Выбраны модели текущего и эталонного изображений, осущест-влена постановка и решены задачи обнаружения и многопороговой селек-ции объекта привязки на изображе-нии с высокой объектовой насыщен-ностью. Получены количественные оценки вероятности локализации объ-екта привязки на изображении Ключевые слова: текущее изобра-жение, обнаружение и многопорого-вая селекция объекта привязки, унимо-дальная решающая функция UDC 621.396

The Operation of Detection Systems in Conditions of Contrast Decrease of Ground Objects

“…The results of the theoretical research, performed by the authors in range of search, detection and identification of the ground objects against various backgrounds in order to define the proper positioning data of the detection system, indicate the necessity of the research targeted on the evaluation and improvement of the effectiveness of the detection systems' operation in conditions of adoption of measures on the decline in their efficiency [1][2][3][4][5]. Taking into consideration the variation of sensors for acquisition of information regarding the ground objects, the generalized evaluation of the effectiveness of the detection systems must be performed regardless of the type of sensor, the conditions of the disruption of operation must be identified, the ways of improvement of the effectiveness need to be defined.…”

“…The information on the ground objects, which is received with the help of the detection systems, based on the tracking and comparison method, is mainly defined by the primary conversion sensor. Depending on the tasks of the detection system, the separate optical-electronic, radar, radiometric sensors as well as their combinations can be utilized [1][2][3][4]. However, regardless of the type of sensors, which are collecting the data on the ground objects, the effectiveness of the detection systems' operation is mainly defined by the parameters of the detected objects, which consequently specify the probability of their search and detection.…”

The Creation of the Database for Mobile Robots Navigation under the Conditions of Flexible Change of Flight Assignment

“…The object structure of the sighting surface with different informative features, which can be unstable due to various external factors, as well as the instability of the conditions for the formation of the images, are of great importance. Considering these factors, it is required to carry out research and find a rational way of creating a database on the sighting surface for MR navigation taking into consideration the features of construction, functioning and current tasks of correlation-extreme navigation systems (CENS) [1,2,3].…”

The Use of Strong and Ordinal Scales during the Synthesis of Reference Images for Vehicle Correlation-Extreme

“…As a result of the lack of accurate data on the geometry of the viewing surface, weather conditions differences, the season when the original data has been gathered, weather conditions changes, the differences between the formed current image (CI) in the navigation system and the previously obtained RI can arise. Consequently, the accuracy characteristics of the navigation system can differ significantly from the required ones [1,2,3,4].…”