Exemplar-based texture synthesis is the process of generating, from an input sample, new texture images of arbitrary size and which are perceptually equivalent to the sample. The two main approaches are statisticsbased methods and patch re-arrangement methods. In the first class, a texture is characterized by a statistical signature; then, a random sampling conditioned to this signature produce...

Urban areas are hot spots that drive environmental change at multiple scales. Material demands of production and human consumption alter land use and cover, biodiversity, and hydrosystems locally to regionally, and urban waste discharge affects local to global biogeochemical cycles and climate. For urbanites, however, global environmental changes are swamped by dramatic changes in the local env...

This paper describes an on-going project with the purpose of building a digital urban landscape, of Gongguan Taipei, for academics and practitioners. Precise urban data around sites are provided and professional practices can use the data to evaluate the environmental impact of new projects. Scans were made of a street and surrounding buildings in the center of Taipei city, based on as-built en...

multifocal skeletal tuberculosis in not uncommon in the countries with tuberculosis. the clinical onest is insidious and sometimes nonspecific, resulting in delay or misdiagnosis. bone scan appearance is presented in some reports, as multiple abnormal accumulations of tracer. this report describes an unusual presentation of multifocal skeletal tuberculosis.

This paper presents a multiple resolution algorithm for segmenting images into regions with diiering statistical behavior. In addition, an algorithm is developed for determining the number of statistically distinct regions in an image and estimating the parameters of those regions. Both algorithms use a causal Gaussian autoregressive (AR) model to describe the mean, variance and spatial correla...

A computational approach for analyzing visible textures is described. Textures are modeled as irradiance patterns containing a limited range of spatial frequencies, where mutually distinct textures differ significantly in their dominant characterizing frequencies. By encoding images into multiple narrow spatial frequency and orientation channels, the slowly-varying channel envelopes (amplitude ...