Abstract PolarLight is a gas pixel X-ray polarimeter mounted on CubeSat, which was launched into Sun-synchronous orbit in 2018 October. We build mass model of the whole CubeSat with Geant4 toolkit to simulate background induced by cosmic (CXB) and high-energy charged particles orbit. The simulated energy spectra morphologies event images both suggest that measured dominated electrons, minor con...

Background images are identified by analyzing the changes in texture of the image sequences. According to the characteristics of highway traffic scenes, in this paper, the author presents a new algorithm for identifying background image based on the gradient projection statistics of the binary image. First, the images are blocked by road lane, and the background is identified by projection stat...

This work adopts background subtraction to develop automatic extraction of moving objects in video surveillance. Pixels at a specific position of continuous image frames are manipulated by the modified iterative threshold selection technique to determine the background gray-level value. Pixels at all positions employ such an iterative technique to establish the background that is then analyzed ...

Object detection plays an important role in successfulness of a wide range of applications that involve images as input data. In this paper we have presented a new approach for background modeling by nonconsecutive frames differencing. Direction and velocity of moving objects have been extracted in order to get an appropriate sequence of frames to perform frame subtraction. Stationary parts of ...

Object detection plays an important role in successfulness of a wide range of applications that involve images as input data. In this paper we have presented a new approach for background modeling by nonconsecutive frames differencing. Direction and velocity of moving objects have been extracted in order to get an appropriate sequence of frames to perform frame subtraction. Stationary parts of ...