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In this paper, we present a novel detail-preserving fusion approach from multiple exposure images using sub band architecture. Given a sequence of different exposures, the Quadrature Mirror Filters (QMFs) based sub band architecture is first employed to decompose the original sequence into different frequency sub bands. After that, the importance weight maps are calculated according to the image appearance...
Medical image segmentation plays an important role in medical visualization and diagnosis. We study in this paper an automatic segmentation method for liver magnetic resonance (MR) images based on the self-organizing map (SOM) and hierarchical agglomerative clustering method. At first, the local features of the MR image pixels are extracted to feed the SOM after a pre-processing step. The output prototypes...
How to remove cloud and shadow completely through several (more than 2) images is considered in this paper. Based on landsat5 data, when enter several images, it can automatically find one image with the least cloud and shadow as the base image. Then mosaic with other images which are taken in different time for the same area, an image without any cloud and shadow is produced.
To reduce the unfavorable influence of phosphene array irregularity on the form of Chinese character pattern so as to improve recognition accuracy in visual prostheses, two correction methods were put forward. One method was to generate phosphene closest to the target point in regular arrays using weighted nearest neighbor search. The other was to generate phosphene whose center located in the region...
According to the features of Dai Characters and the status quo of Dai Information processing, this paper puts forward a making method of common outline fonts of the Dai characters. Based on the analysis on the types of outline fonts, outline extraction method of Dai font is designed and realized in Linux. Dai outline font as basis for Dai information processing provides strong support for promoting...
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