In this study, we developed an algorithm for detecting seam cracks in a steel plate. Seam cracks are generated in the edge region of a steel plate. We used the Gabor filter and an adaptive double threshold method to detect them. To reduce the number of pseudo defects, features based on the shape of seam cracks were used. To evaluate the performance of the proposed algorithm, we tested 989 image...

SUMMARY Seam carving, which preserves semantically important image content during resizing process, has been actively researched in recent years. This paper proposes a novel forensic technique to detect the trace of seam carving. We exploit the energy bias and noise level of images under analysis to reliably unveil the evidence of seam carving. Furthermore , we design a detector investigating t...

Mesh parameterization is a key problem in digital geometry processing. By cutting a surface along a set of edges (a seam), one can map an arbitrary topology surface mesh to a single chart. Unfortunately, high distortion occurs when protrusions of the surface (such as fingers of a hand and horses’ legs) are flattened into a plane. This paper presents a novel skeleton-based algorithm for computin...

It is well known that multi-chart parameterization methods introduce seams over the object being parameterized. This causes serious problems for several applications, like texture filtering and simulations in texture domain (e.g. fluid simulations). In this paper we present a set of two techniques, collectively known as ’Continuity Mapping’, that when used together make a multi-chart parameteri...

In a Collaborative modelling environment, multiple users may interact in a virtual environment to deform or modify shared 3D objects (e.g., for modelling and visualization of virtual prototypes). The challenges to collaborative modelling are related mainly to four aspects: user interaction with the virtual modelling environment, 3D objects concurrent editing, consistency maintenance among clien...

In this study, a laser-based machine vision system is developed and implemented to monitor and control welding processes. The system consists of three main modules: a laser-based vision sensor module, an image processing module, and a multi-axis motion control module. The laserbased vision sensor is designed and fabricated based on the principle of laser triangulation. By developing and impleme...

The C. elegans epidermis is a simple epithelium comprised of three major cell types, the seam, syncytial and P cells. While specification of all major epidermal cells is known to require the ELT-1 GATA transcription factor, little is known about how the individual epidermal cell types are specified. We report that elt-5 and -6, adjacent genes encoding GATA factors, are essential for the develop...

In this paper we consider the problem of implementing and optimizing the Seam Carving algorithm on graphics processing units. Seam Carving is a content-aware image resizing method proposed by Avidan and Shamir. In order to use their proposed method in real-time application, a pre-processing step is needed. While some other papers propose real-time resizing by changing the original Seam Carving ...

The context of this paper is Enterprise Architecture (EA). EA is a multi-disciplinary approach that allows different specialists to design new business and IT systems and focuses on the integration of these systems. Our group develops a specific EA method that is called SEAM. The current version of SEAM has a formal denotational semantics for its modeling language. In order to provide model sim...