Метод выделения изображений небесных объектов, смазанных собственным движением
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Дата
2015
ORCID
DOI
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
НТУ "ХПИ"
Анотація
Разработан метод выделения изображений небесных объектов, смазанных собственным движением.
Предложенный метод включает в себя три этапа, один из которых выполняется при внутрикадровой обработке, а два других - во время межкадровой обработки серии кадров участка звездного неба. В работе приведены результаты экспериментальных исследований распределения используемых селективных признаков и частот ложных обнаружений на этапах работы метода. Предложенный метод может быть использован для обнаружения объектов с высокой скоростью
видимого движения в программах астероидных обзоров.
Celestial objects with high visible speed can have an image which is smeared its own movement. Typically, these characteristics correspond to asteroids approaching the Earth. Observation and detection of such objects is of special interest due to the urgent problem of the asteroid hazard. The purpose of this article is to provide the method for selecting images of celestial objects, trailed its own movement. The proposed method consists of three phases, the first of which corresponds to intraframe processing, and the other two - interframe. In the first stage are selected the images that have trailed attributes. In the second stage from the set of trailed images selected in the first stage, are excluded those that include are at least two circular images of famous stars or star caught in the generated internal directory of the objects fixed on a series of frames. The third stage: trailed images are combined into a series of trailed images of a hypothetical object using the developed method of strobe class. After excluding from consideration of objects from internal directory, objects with zero apparent motion in the second stage of the method, of the total amount remained just 1% of the measurements corresponding to the trailed image which hypothetically may belong to objects with the speed of apparent movement sufficient for the image trail of the object due to its own movement. After using the 3 steps of the method, the false detection of objects with high visible speed of motion in the experimental investigations are not found. We present the results of experimental studies of the distribution of used selective characteristics and frequencies of false detections in the stages of the method. The proposed method can be used to detect objects with high rate of apparent motion in the programs for observation of asteroids.
Celestial objects with high visible speed can have an image which is smeared its own movement. Typically, these characteristics correspond to asteroids approaching the Earth. Observation and detection of such objects is of special interest due to the urgent problem of the asteroid hazard. The purpose of this article is to provide the method for selecting images of celestial objects, trailed its own movement. The proposed method consists of three phases, the first of which corresponds to intraframe processing, and the other two - interframe. In the first stage are selected the images that have trailed attributes. In the second stage from the set of trailed images selected in the first stage, are excluded those that include are at least two circular images of famous stars or star caught in the generated internal directory of the objects fixed on a series of frames. The third stage: trailed images are combined into a series of trailed images of a hypothetical object using the developed method of strobe class. After excluding from consideration of objects from internal directory, objects with zero apparent motion in the second stage of the method, of the total amount remained just 1% of the measurements corresponding to the trailed image which hypothetically may belong to objects with the speed of apparent movement sufficient for the image trail of the object due to its own movement. After using the 3 steps of the method, the false detection of objects with high visible speed of motion in the experimental investigations are not found. We present the results of experimental studies of the distribution of used selective characteristics and frequencies of false detections in the stages of the method. The proposed method can be used to detect objects with high rate of apparent motion in the programs for observation of asteroids.
Опис
Ключові слова
протяженные изображения, стробовый метод, астероиды, ПЗС-кадр, trailed object, strobe method, asteroid, CCD-frame
Бібліографічний опис
Метод выделения изображений небесных объектов, смазанных собственным движением / Н. С. Соковикова [и др.] // Вестник Нац. техн. ун-та "ХПИ" : сб. науч. тр. Темат. вып. : Новые решения в современных технологиях. – Харьков : НТУ "ХПИ". – 2015. – № 39 (1148). – С. 83-92.