Learn More
The sub-block-based image retrieval method utilizes global and local image features to retrieve trademarks through separating individual an images into some blocks. This paper proposes a sub-block-based trademark image retrieval algorithm under the polar coordinate system. Experiment results show that our algorithm can keep excellent invariance in image(More)
—We present an intrinsically nonlinear interpolatory subdivision scheme with geometric information and some free parameters via discrete curvatures normal vector. Our scheme can produce fair G 1-continuous curves, which can avoid the potential pitfalls and unacceptable cases appeared in the four-point subdivision scheme. Furthermore, with the proper(More)