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In industrial production, the application of the on-line detection and recognition technology of capsule defects is more and more widely. The correct segmentation of the target capsule is essential for the feature extraction and accurate recognition. Because the difference between the oval transparent capsule and background is small and the image exists uneven illumination interference, common methods...
Spectroscopy, with the current 2D sensors, has been the study of the 4-dimension function F(x; y; t; l) that defines the intensity of light at the sensor location (x; y) at time t and at wavelength l. The goal of video rate spectroscopy is to capture, process, and display this function at reasonable discretized resolutions of each of the parameters x, y, t and l. Spectral imaging till date has been...
Traditional sparse image models treat color image pixel as a scalar, which represents color channels separately or concatenate color channels as a monochrome image. In this paper, we propose a vector sparse representation model for color images using quaternion matrix analysis. As a new tool for color image representation, its potential applications in several image-processing tasks are presented,...
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