Monocular 3D reconstruction is to reconstruct the shape of object and its other information from a single RGB image. In reconstruction, polygon mesh, with detailed surface low computational cost, most prevalent expression form obtained deep learning models. However, state-of-the-art schemes fail directly generate well-structured meshes, we identify that meshes have severe Vertices Clustering (V...

In this study, an analytical slip-line approach is utilized to investigate the friction factor at the tool-chip interface and dead metal zone phenomenon in orthogonal cutting with chamfered tools. Analytical thermal modeling of chamfered tools is also formulated and integrated into the model. Orthogonal cutting of AISI 4340 steel is performed. Measured forces are utilized in identifying the fri...

We present a novel method for shape detection in natural scenes based on incomplete contour fragments and nearest neighbour search. In contrast to popular methods which employ sliding windows, chamfer matching and SVMs, we characterise each contour fragment by a local descriptor and perform a fast nearest-neighbour search to find similar fragments in the training set. Based on this idea, we sho...

Rotary ultrasonic machining (RUM) is one of the machining processes for advanced ceramics. Edge chipping (or chamfer), commonly observed in RUM of ceramic materials, not only compromises geometric accuracy but also possibly causes an increase in machining cost. In this paper, a three-dimensional finite element analysis (FEA) model is developed to study the effects of three parameters (cutting d...

In this paper, we present a robust shape matching approach based on bottom-up segmentation. We show how over-segmentation results can be used to overcome both ambiguity of contour matching and occlusion. To measure the shape difference between a template and the object in the input, we use oriented chamfer matching. However, in contrast to previous work, we eliminate the affection of the backgr...

Neighborhoods and neighborhood sequences play important roles in several branches of pattern analysis. In earlier papers in Z only certain special (e.g. periodic or octagonal) sequences were investigated. In this paper we study neighborhood sequences which are either ultimately periodic or allow at every neighborhood to do nothing at no cost. We give finite procedures and descriptive theoretica...

The success of skeletal model in object recognition from segmented images motivates the development of a skeletal model for top-down object recognition and segmentation. We propose a novel skeleton-based generative shape model which is suitable for efficient search using dynamic programming (DP). We have devised an exclusion principle enabling DP to discover multiple instances of an object cate...

Traumatized anterior teeth require quick functional and esthetic repair. Tooth fragment reattachment is a simple and conservative clinical procedure to restore fractured anterior teeth. Different techniques of reattachment include enamel beveling, "v-" shaped internal enamel and dentin grooves, external chamfer, over contouring, and by placing fiber post, all of which were invasive methods. Thi...

Hard turning offers improved manufacturing efficiency but requires great control of the cutting process to achieve required machining-induced surface integrity with respect residual stresses, topography, and near-surface microstructure. This research work is focused on studying effect speed, feed rate, depth cut, chamfer angle, coolant pressure after hard martensitic AISI 52100 steel. The resul...