Аннотация

The problem of a displacement field calculation for an image sequence based
on a discrete model is being solved. Algorithms for displacement field
construction are in demand in various image processing tasks. These methods are used in motion detection, object movement tracking, analysis of complex images, movement correction of medical diagnostic images in nuclear medicine, radiology, etc. An optimization approach to the displacement field construction based on a discrete model is developed in the paper. The approach explores the possibility of taking into account the brightness change along the trajectories of the system. A linear model is considered.
Directed optimization methods based on the analytical representation of the functional gradient are constructed to search for unknown parameters. The algorithm for displacement field construction with image partitioning into regions is proposed. This algorithm can be used to process a variety of image sequences. The results of the algorithm operation on test radionuclide images are presented.
Язык оригиналаанглийский
Страницы (с-по)3-16
Число страниц14
ЖурналBulletin of Irkutsk State University, Series Mathematics
Том39
DOI
СостояниеОпубликовано - мар 2022

Ключевые слова

  • дискретные системы
  • поле перемещений
  • вариация функционала
  • оптимизация
  • обработка изображений

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