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Sathya, G.
- Generation of Three Dimensional Structuring Elements Over 3×3×3 Rectangular Grid
Authors
1 Department of Computer Science, VNR Vignana Jyothi Institute of Engineering and Technology, Bachupally, Hyderabad-500090, IN
2 New York Institute of Technology, Westbury Campus, New York, US
3 Pentagram Research Centre, Jubilee Hills, Hyderabad, A.P., IN
Source
Digital Image Processing, Vol 4, No 2 (2012), Pagination: 80-89Abstract
Three dimensional (3-D) structuring elements plays a vital role in the processing of three dimensional volumetric images such as 3-D medical images. These structuring elements are used in 3-D mathematical morphological operations such as erosion, dilation etc. There is no algebraic framework as such to systematically generate the 3-D structuring elements. The work discussed in this paper is systematically generating the 3-D structuring elements by using geometric filters (G-Filters).This paper initially gives a novel concept of what we call as geometric filters (G-Filters) defined over a 3-D rectangular grid of pixels. By using these G-Filters, 256 convex Polyhedrons are generated. The 256 different structuring elements could be created by using the 256 convex polyhedrons. These G-Filters have potential applications to processing of volumetric images. In addition, the paper describes in brief the algebra of G-Filters by formulating a lattice of convex polyhedrons constructed in a 3×3×3 grid of pixels.
This paper proposes a new algorithm for automatic generation of 255 convex polyhedrons from its initial set named A containing all eight corners of the 3×3×3 rectangular grid. This paper also proposes an algorithm for hierarchal path enumeration used in visualizing the relationships between convex polyhedron sets and their corresponding subsets of other convex polyhedrons. Finally, an algorithm is proposed to generate 3D structuring element from a selected convex polyhedron.
Keywords
Geometric Filters, 3-D Structuring Elements, Convex Polyhedrons, Hierarchal Path Enumeration, 3-D Image Processing.
- Automated Electricity Meter Reading Using Powerline Carrier Communication
Authors
Source
Programmable Device Circuits and Systems, Vol 8, No 6 (2016), Pagination: 185-189Abstract
Asssutomation is introduced into various fields, to reduce human labor, time and energy consumption. AMR is the modern Power measuring device .It is being used in measuring electricity, gas, water consumption in many fields. Since, this method has a lot of advantages over the existing system such as real time measuring and monitoring, theft free, digital data analysis with better user interface. The current to and the Voltage across the load is continuously measured using a CT-PT circuit. The analog voltage and current readings are provided to the PIC (Programmable Interface Controller) microcontroller. A PIC microcontroller is used as a master to initiate data transfer as well as to do the calculation of bill amount. Powerline carrier communication (PLCC) is a data transfer technique which uses the AC load line for this purpose. PLCC reduces the cost of implementation and is an apt technique for vast number of customers. This technique is more reliable, fast and safe compared to all other automation method available till date. The system can be interfaced with a PC using RS 232 serial communication port through a MAX232. Using this type of metering provides an ideal solution for commonly incident problems such as power quality maintenance, detection of power failure or phase failure. It also provides a timely billing as well as even a multi tariff system of billing can be implemented with a minimum modification.
Keywords
AMR, PIC, PC, PLCC.- Internet of Things Based Home Automation Using Raspberry-PI
Authors
1 Department of Instrumentation and Control Engineering, Tamilnadu College of Engineering, Karumathampatti, Coimbatore-641549, Tamilnadu, IN
Source
Digital Signal Processing, Vol 10, No 4 (2018), Pagination: 70-73Abstract
The home automation technology makes the human life comfortabe & luxourious. This technology provides the control of home devices as well as secure & intelligent interaction between personnel inside and outside home
The system control the electrical appliances of house and effective interaction to the visitors with relatively low cost design, user friendly as well as easy of installation Introducing the Raspberry Pi to the world of home automation provides numerous customizations to turn a regular home into a smart home. Raspberry Pi provides a low cost platform for interconnecting electrical/electronic devices and various sensors in a home via the internetwork.Using this system, the consumer can save electrical energy by regular monitoring of home devices.