The font evolution with various types is a great impact on a recognition performance of optical character recognition (OCR) systems. The more diversity of fonts leads to the less accuracy of recognition rate, particularly Thai-fonts. In order to overcome this obstacle, this paper proposes a font descriptor for printed Thai-character recognition. The role of such a descriptor is a representative...

This paper considers the problem of robust stability analysis for continuous descriptor systems with state delay and structured uncertainties. A computationally simple approach to test stability of descriptor delay systems is proposed. Based on this, we developed a sufficient condition which guarantees that the perturbed descriptor delay system under consideration is regular, impulse-free and s...

Face Recognition with Learning-based Descriptor. 1The Chinese University of Hong Kong. Xiaoou Tang1, 3.We pdf converter for linux free download examine the building blocks of descriptor algorithms and evaluate numerous. Mations and can be compared with other descriptors in a database to obtain.Several versions of the revised Descriptors were consulted on widely with stakeholders and users of th...

In image registration or matching, the feature extracted by using traditional methods does not include depth information which may lead to a mismatch of keypoints. this paper, we prove that when camera moves, ratio difference keypoint and its neighbor pixel before after movement approximates constant. That means normalization is invariant movement. Based on property, all differences pixels cons...

We present a mathematical model to decompose longitudinal deformation into normal and abnormal components. The goal is detect extract subtle from periodic motions in video sequence. It has important applications medical image analysis. To achieve this goal, we consider representation of the deformation, called Beltrami descriptor, based on quasiconformal theories. descriptor complex-valued matr...