Learn More
Video-based information collection has become an important research direction, and moving object tracking technique plays a key role nowadays. The classic corner tracking algorithm doesn’t meet the real-time requirement, and loses the object mostly due to occlusions, the change of geometrical scale or/and some similar objects approaching to the(More)
A blind audio watermarking algorithm based on Fast Fourier Transform(FFT) coefficients quantization is proposed. In order to resist MP3 compression, the area of the entire host audio signal for embedding watermark is designated by adaptive adjustment. Then the designated area is separated to segments and every segment is transformed into frequency domain by(More)
The interaction of vessel endothelial cell growth factor (VEGF) and its receptors (flt-1, FLK-1/KDR) regulates tumor angiogenesis. Therefore, blocking the binding of VEGF and the corresponding receptor has become critical for antitumor angiogenesis biological therapy. Our study extracted sFLK-1 fragment from embryo mouse liver using RT-PCR, recombined it to(More)
OBJECTIVE To investigate the expression of vascular endothelial cell growth factor (VEGF) and its receptor (Flt-1) in breast carcinoma and the relationship of such expression with angiogenesis, tumor invasion and metastasis. METHODS In situ hybridization and immunohistochemistry technique were used to test the expression of mRNA and protein expression of(More)
The important tasks in a wireless sensor network such as routing, target tracking are highly dependent on the location of a sensor node. Hence localization becomes an essential criterion in wireless sensor networks. Higher the localization accuracy better is the performance of the sensor network as a whole. Traditional mathematical algorithms can be used(More)
An efficient and simple encryption and compression scheme for digital image is reported in this paper. This scheme is based on the algorithm of the generalized knight’s tour, discrete cosine transform and non-linear chaotic maps. In this scheme, according to the structure of compression, confusion and diffusion are attained by methods of the generalized(More)
Distance based localization techniques have always been of interest among researchers. The free received signal strength index (RSSI) requires no extra hardware for distance measurement. Authors in this paper assume that RSSI based distance estimation technique will have some error due to noisy RSSI readings. The localization algorithm proposed here takes(More)
OBJECTIVE To study the expression of vascular endothelial growth factor (VEGF) and transcription factor E26 transformation-specific-1 (ETS-1) in breast carcinoma and its effect on angiogenesis, tumor invasion and metastasis. METHODS In situ hybridization and immunohistochemistry (streptomycin avidin-biotin-peroxidase complex, SP) were used to detect the(More)
The paper proposes an image super resolution reconstruction algorithm based on sparse representation and the UV chroma processing. For each patch of the low resolution input images, a sparse representation is sought to generate the high-resolution output. The sparse representation of a low resolution image patch can be applied to generate a high resolution(More)