n The Extraction Information From Alex
نویسنده
چکیده
The extraction of shape from shading has a relatively long history within the field of computer vision. There have been two general classes of algorithm developed: Local algorithms, which attempt to estimate shape from local variations in image intensity, and information propagation algorithms, which attempt to propagate contour information across a shaded surface. Local algorithms, such as Pentland [I] or Ferric and Levine [2], use shading information within a small region to estimate surface orientation. Thus a subsequent integration step is required to obtain surface shape. These local methods of estimating surface orientation have been shown [2,3] to produce accurate estimates whenever z(z, g), the imaged surface, has derivatives that obey:
منابع مشابه
Presenting a method for extracting structured domain-dependent information from Farsi Web pages
Extracting structured information about entities from web texts is an important task in web mining, natural language processing, and information extraction. Information extraction is useful in many applications including search engines, question-answering systems, recommender systems, machine translation, etc. An information extraction system aims to identify the entities from the text and extr...
متن کاملOptimized preconcentration of Imatinib using dispersive liquid-liquid microextraction coupled with HPLC-UV
Background: Imatinib is an antineoplastic agent acting as a tyrosine kinase inhibitor to treat cancer such as lymphoblastic leukemia. The dosage of the anticancer drugs plays a critical role in the survival of the patients. For this reason, the patient's plasma and urine samples should be monitored to obtain the necessary information regarding the toxicity of the drug. In this study, the applic...
متن کاملA New Method for Improving Computational Cost of Open Information Extraction Systems Using Log-Linear Model
Information extraction (IE) is a process of automatically providing a structured representation from an unstructured or semi-structured text. It is a long-standing challenge in natural language processing (NLP) which has been intensified by the increased volume of information and heterogeneity, and non-structured form of it. One of the core information extraction tasks is relation extraction wh...
متن کاملGenetic Diversity of Marrubium Species from Zagros Region (Iran), Using Inter Simple Sequence Repeat Molecular Marker
This study concerns the genetic diversity and taxonomic status of Marrubium species from central and south-west of Zagros region, Iran. It is investigated by Inter-Simple Sequence Repeat analysis. A total of 68 accessions from five Marrubium species were collected from their natural habitats. Molecular analysis was approved with 17 primers, of which 12 were carried out in the reaction mixture. ...
متن کامل