| 摘要 |
The invention relates to an image processing method for noise reduction in a sequence of noisy original images representing a threadlike structure moving on a background, said method comprising: an acquisition of the digital pixel value at a current pixel location in a first and a second successive original image of the sequence, an extraction of the thread-like structure for providing first and second binary mask image pixel values at said location from said first and second original image, spatial and time-filtering of the pixel value of the second original image, and a pixel value selection based on said binary mask image pixel values for providing respectively, as a finally filtered pixel value, either the spatially or time-filtered pixel value respectively, as a threadlike structure filtered or a background pixel value. The invention also relates to a system and an apparatus for carrying out the method. |
