اليوطوبيا في رحلات العرب إلى الغرب، التجليات والاستراتيجيات الخطابية

Utopia in the Arabs\u27 Journey to the West: Manifestations and Discourse Strategies This article deals with research on the concept of image and utopia through travel texts of Arab travelers who were tempted and distinguished by the West, all in a kind of exoticism and miraculousness

Symmetric architecture modeling with a single image

10.1145/1661412.1618459ACM Transactions on Graphics285113:1-113:8ATGR

VISIRE: Photorealistic 3D Reconstruction from Video Sequences

Publication électronique seulementInternational audienceTraditionally, building 3D reconstructions of large scenarios such as a museum or historical site has been costly, time consuming and required the contribution of expert personnel. Usually the results showed an artificial look and had little interactivity. However, newly developed technologies in the areas of video analysis, camera calibration and texture fusion allow us to think in a much more satisfying scenario where the user with the only aid of a domestic video camera is able to acquire all the information it is required to construct the 3D model of the desired environment in an easy and comfortable manner. In this paper, the results obtained in the EC funded project VISIRE are presented. VISIRE attempts to construct photorealistic 3D models of large scenarios using as input multiple freehand video sequences. Once acquired, the computer vision software will process the video information off-line in order to obtain the 3D mesh together with the textures required to obtain a 3D model highly resembling the original

PatchNet

We introduce PatchNets, a compact, hierarchical representation describing structural and appearance characteristics of image regions, for use in image editing. In a PatchNet, an image region with coherent appearance is summarized by a graph node, associated with a single representative patch, while geometric relationships between different regions are encoded by labelled graph edges giving contextual information. The hierarchical structure of a PatchNet allows a coarse-to-fine description of the image. We show how this PatchNet representation can be used as a basis for interactive, library-driven, image editing. The user draws rough sketches to quickly specify editing constraints for the target image. The system then automatically queries an image library to find semantically-compatible candidate regions to meet the editing goal. Contextual image matching is performed using the PatchNet representation, allowing suitable regions to be found and applied in a few seconds, even from a library containing thousands of images