Browsing by Author "Erden,A."

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Citation - Scopus: 4
Bioinspired Conceptual Design (bicd): Conceptual Design of a Grasshopper-Like Jumping Mechanism as a Case Study
(2011) Eroglu,A.K.; Erden,Z.; Erden,A.; Department of Mechatronics Engineering; Mechatronics Engineering
The evolution process of nature creates highly effective, power efficient, and perfectly structured biological systems. These excellent systems provide an inexhaustible source for engineers and scientists who desire to inspire ideas, processes, structures, functions, and behaviors from biological domain and implement them into engineering domain. This approach is called "Bioinspired" and challenging for engineers. However, some problems of the practical approaches are observed. One of the problems is "ad hoc" nature of the process. Each bioinspired design product has resulted in a differing design process and a generalization was not possible. Another problem rises due to the terminology difference between engineers and biologists. To overcome these problems, a need for a systematic bioinspired design (BID) process was realized in early 2000s and since then, considerable research on the BID methodology has been progressed. Within the context of BID, this paper introduces a new approach on bioinspired conceptual design (BICD) procedure for hybrid bioinspired robots which can be inspired from multiple biological systems. An illustrative case study is given in the paper.
Citation - Scopus: 4
Conceptual Design of a Rose Harvesting Robot for Greenhouses
(2013) Gürel,C.; Erden,A.; Department of Mechatronics Engineering
Agricultural applications has made over thousands years, and the entire processes dependent to people. The dependency increases the labor time of the process and as well as cost of the products. To overcome this problem, the automated systems on the agricultural processes are needed in the place of humans. Many implementations are made on the harvesting processes in different products, i.e., rose, apple, cherry, strawberry, etc. which shows the importance of automation in the harvesting. The company needs a system that makes harvesting of the roses instead of human in greenhouse. Conceptual design of rose harvesting robot is given in this paper which is covers need, intended users, functions and top level intelligence algorithm.
Developing an Analysis Process for Biological Systems To Design Biorobots - a Case Study of Human Hand Gripping Motion
(2013) Eroǧlu,A.K.; Erden,Z.; Erden,A.; Mechatronics Engineering; Department of Mechatronics Engineering
The fundamental reasoning behind the use of bioinspired design (BID) is to increase creativity (novelty and usefulness) and innovation in engineering. Within the context of BID, development of systematic process for analyzing biological systems and transferring knowledge, which is obtained from the analysis of biological systems, into engineering is compulsory. This paper presents developing a process for the analysis of biological systems for design of biorobots. Preparing, collecting, and organizing are the main steps of this process and applied in a case study which involves gripping motion of a human hand. An experimental set-up with a high-speed camera is constructed to obtain the components of knowledge: morphology, function and behavior. This knowledge will be later used to design a wearable hand in prospective projects.
Face Detection Algorithm With Facial Feature Extraction for Face Recognition System
(2013) Gürel,C.; Erden,A.; Department of Mechatronics Engineering
A face recognition system is one of the biometric information processes, its applicability is easier and working range is wider than other systems like; fingerprint, iris scanning, signature, etc. The detection methods are designed to extract features of face region out of a digital image. The output face image of the detection algorithm should be similar to the recognition input image. Face detection is performed on live acquired images without any application field in mind. The developed system uses white balance correction, skin like region segmentation, facial feature extraction and face image extraction on a face candidate. System is also capable of detecting multiple faces in live acquired images.
Rose Stem Branch Point Detection and Cutting Point Location for Rose Harvesting Robot
(Mechatronics and Machine Vision in Practice, 2015) Gürel,C.; Hassan,M.; Zadeh,G.; Erden,A.; Department of Mechatronics Engineering
The primary objective of the study is to develop a method that can locate the proper location of cutting point of rose stem for robotic rose harvesting. Stem tracking and cutting operation are achieved using with the help of stereo vision techniques. The cutting point has a vital importance for cut rose harvesting in greenhouse which affects the efficiency of new shoot from the cut stem. In agricultural process, the cutting point depends on thickness of stem and eye on stem. Locating the eye is difficult by image processing thus another relation for cut point estimation was performed. The relation between thickness and cut length can lead to relation for cut point estimation. 239 data is collected from a greenhouse and linear relation with some deviation was acquired. To perform this relation, branch point location algorithm was developed. The proposed algorithm has three steps: branch point detection; thickness calculation; and cutting length estimation. The algorithm for branch detection performs quite well to detect and locate the position of the point when there occur no overlapping. The results of branch point detection are adequate for implementing to the robot. © 2015, Mechatronics and Machine Vision in Practice. All rights reserved.