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A generalized formulation of azimuth spectrum for high precision processing on complicated trajectory of both ECSA and EFSA is derived. Based on the method of series reversion (MSR), the azimuth spectrum on complicated trajectory incorporates a new curvature factor for an identical formulation comparing to the one of ideal trajectory. A pretreatment of Range Walk Correction (RWC) is proposed to decrease...
As a protection and authentication technology, digital watermarking technology has been used in the medical image field. In this paper, a digital watermarking algorithm is proposed based on integer wavelet transform to protect digital medical images and estimate its integrity and authenticity. Using matrix norm quantization, watermarks are embedded into low-frequency, medium-frequency and high-frequency...
As a protection and authentication technology, digital watermarking technology has been used in the image field. In this paper, a digital watermarking algorithm is proposed based on integer wavelet transform to protect digital images and estimate its integrity and authenticity. Using matrix norm quantization, watermarks are embedded into low-frequency, medium-frequency and high-frequency detail sub-bands...
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