Reverse Engineering

Abstract

One of the most time-consuming aspects of creating 3D virtual models is the generation of geometric models of objects, in particular if the virtual model is derived (digitized) from a physical version of the object. A variety of commercially available technologies can be used to digitize objects at the molecular scale but also multi-storey buildings or even planets and stars. The process of 3D digitizing basically consists of a sensing phase followed by a rebuild phase. The sensing phase collects or captures raw data and generates initial geometry data, usually as a 2D boundary object, or a 3D point cloud. Sensing technologies are based on tracking, imaging, and range finding or their combination. The rebuild phase is internal processing of data into conventional 3D CAD and animation geometry data, such as NURBS and polygon sets. Finally, in most cases, the digitized objects must be refined by using the CAD software to gain CAD models of optimal quality which are needed in the downstream processes. Leading CAD software packages include special modules for such tasks. Many commercial vendors offer sensors, software and/or complete integrated systems. Reverse engineering focuses not only on the reconstruction of the shape and fit, but also on the reconstruction of physical properties of materials and manufacturing processes. Reverse engineering methods are

Assessment of Methods for Industrial Indoor Object Recognition

“…DL techniques have emerged as powerful methods for learning features automatically from data [24]. In particular, these techniques have provided significant improvement for object detection, a problem which has attracted enormous attention in the last few years, even though it has been studied for decades before [25].…”

Pembuatan Prototipe Alat Pencucian Galon serta Pelatihan Sistem Kerja dan Pemeliharaannya di CV Barokah Abadi Baleendah Bandung

“…Reverse Engineering and Redesign Methodology adalah metode yang intinya membahas pada tahapan proses yang dibutuhkan untuk memahami dan menggambarkan produk eksisting sebelumnya [12]. Pembahasan utama reverse engineering adalah melakukan produksi ulang obyek yang sudah ada dengan menganalisis dimensi, fitur, bentuk dan sifat sehingga data dan informasi yang dikumpulkan harus diubah menjadi pengetahuan produk yang berkaitan di tingkat sistem, perwujudan, dan detail [13]- [15]. Berikut adalah framework Reverse Engineering and Redesign Methodology yang digambarkan seperti digambar Gambar 7.…”

Automatic Generation of Digital Twin Based on Scanning and Object Recognition

“…It is partially determined by the scan procedure which should provide a dense point cloud of high accuracy. The aims of a scan is to generate point cloud models or generate point clouds with high quality for subsequent steps [28].…”

“…Object detection and recognition has a wide range of applications in many areas of artificial intelligence and information technologies, including robot vision, consumer electronics, security, autonomous driving, human computer interaction, content based image retrieval, intelligent video surveillance and augmented reality [30]. However, there are certain difficulties in using DL to process 3D point clouds [28] which must be taken into account:…”