摘要:
Methods and apparatuses for removing a visual object from a visual data stream. A live visual data stream containing present and subsequent images is received. A visual object is selected by defining a contour. A binary mask based on said contour is determined. Starting at the coarsest layer, regions outside the mask for replacing a region within the mask are selected. The region within the mask is replaced by content of the selected regions. The selecting and the replacing are successively repeated at each of the finer layers of the resolution pyramid finishing at the finest layer. The repeated replacing is also based on the content replaced at the next coarser layer. The step of determining a binary mask, calculating a resolution pyramid, and repeated selecting and repeated replacing are repeated for the received subsequent image. The repeated replacing is also based on the content replaced in the preceding image.
摘要:
A method and image processing system for removing a visual object from an image, e.g., a moving image, is described. An image is provided in which a visual object to be removed is selected, for which a mask is determined. Pixels outside the mask that are intended to be used for replacing pixels inside the mask are selected, based on a similarity measure, comprising an appearance similarity measure representing the visual similarity between a previously selected pixel for replacing the pixel to be replaced and the pixel to be selected, and a geometry similarity measure, representing the closeness of the pixel to be selected to the pixel among the pixels outside the mask that was previously used for replacing the pixel adjacent to the pixel to be replaced. The pixels inside the mask are replaced by copying the properties of the selected pixels to the respective pixels to be replaced.
摘要:
A method and image processing system for removing a visual object from an image, e.g., a moving image, is described. An image is provided in which a visual object to be removed is selected, for which a mask is determined. Pixels outside the mask that are intended to be used for replacing pixels inside the mask are selected, based on a similarity measure, comprising an appearance similarity measure representing the visual similarity between a previously selected pixel for replacing the pixel to be replaced and the pixel to be selected, and a geometry similarity measure, representing the closeness of the pixel to be selected to the pixel among the pixels outside the mask that was previously used for replacing the pixel adjacent to the pixel to be replaced. The pixels inside the mask are replaced by copying the properties of the selected pixels to the respective pixels to be replaced.