the research layout of surveying sonqor’s caves and rock shelters has been presented according to the region’s importance in archeological studies, lack of documented data, and necessity of registering most monuments which have been less considered as a result of uneasy access. the need of this project is characterized with regard to former surveys which just considered registering the region’s...

leather artifacts have organic and degradable structure and some historic samples have remained from different historical periods. studies of these scarce specimens have a great importance in the conservation procedure by which the structural study of leather artifact for understanding production process and used materials can be achieved. for this purpose a historic leather bottle has been stu...

background: cone beam computed tomography (cbct) is an alternative to a computed tomography (ct) scan, which is appropriate for a wide range of craniomaxillofacial indications. the long‑term use of metallic materials in dentistry means that artifacts caused by metallic restorations in the oral cavity should be taken into account when utilizing cbct and ct scanners. the aim of this study was to ...

JPEG is one of the most widely used image compression method, but it causes annoying blocking artifacts at low bit-rates. Sparse representation is an efficient technique which can solve many inverse problems in image processing applications such as denoising and deblocking. In this paper, a post-processing method is proposed for reducing JPEG blocking effects via sparse representation. In this ...

introduction two-dimensional gel electrophoresis (2dge) is a powerful technique in proteomics for protein separation. in this technique, spot segmentation is an essential stage, which can be challenging due to problems such as overlapping spots, streaks, artifacts and noise. watershed transform is one of the common methods for image segmentation. nevertheless, in 2dge image segmentation, the no...

This dissertation explores the integration of physical and digital interactions for artifacts used in design sketching and brainstorming. The proposed system supports design practice using an ecology approach; an ecology is a collection of tools and content used by a group such that the whole is greater than the sum of its parts. Expected contributions include novel models of sharing and collab...