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Publications (13)
Oil palm cultivation is one of the major agricultural activities in Colombia. Production performance is related to the good practices in the plantation, mainly regarding the management of phytosanitary conditions. Bud rot disease is the one with the greatest impact in Colombia. The most commonly used technique for its detection is from routine visu...
Parameters of the human gait cycle are commonly used for the evaluation and diagnosis of motor and neurological disorders. Traditionally, biomechanical analysis is performed in specialized laboratories, but in these locations, the subject does not perform a natural gait and tends to hide or exaggerate their alterations. Therefore, in this paper, we...
Electromyography signals are commonly used to control prosthetic or orthotic devices. The electrodes attached to the skin capture the muscular activity coming from neuromotor signals. Robotic prostheses help to improve the quality of life of people who suffer from physical disabilities such as amputations of lower or upper limbs. However, these pro...
Virtual reality locomotion has been a subject of study as it plays an important role that affects immersion and presence. Walking constitute a challenging interaction in virtual reality installments as it is a complex task to recreate. Some approaches have focused on input devices employing diverse technologies including robotics, omnidirectional t...
This paper describes the development of a system capable of capturing, processing, and analysing images of palm oil plantations in order to detect and identify bud rot disease. The process begins with the capturing of images using the DJI Phantom 4 UAV, which is first configured for a flight plan of the desired area and altitude. The resulting imag...
The acquisition of laparoscopic technical skills is constrained by the limited training opportunities and the necessity of having staff physicians on site to provide feedback to the trainees. In addition, the assessment tools used to measure trainees performance are not always sensitive enough to detect different levels of expertise. To address thi...
Oil palm plantations cover large areas. One of the main problems is to get an updated census of plants contained in these fields. Nowadays this process is done manually generating subjective results of the number of plants and so economic losses. This paper presents the validation of an oil palm detection and counting system. It uses a logistic reg...
This paper proposes the development of a counting aerial system capable of capturing, process and analyzing images of an oil palm plantation to register the number of cultivated palms. It begins with a study of the available UAV technologies to define the most appropriate model according to the project needs. As result, a DJI Phantom 2 Vision+ is u...
Off Pump Coronary Artery Bypass (OPCAB) surgery is a strategy for revascularizing diseased coronary arteries without cardiopulmonary bypass. The complete operation can be deconstructed into individual tasks and subtasks that are ideal for creating simulation modules. Recently, we have developed a modular mechanical beating-heart OPCAB simulator for...
The construct validity of a surgical bench-top simulator with built-in computer acquired assessments was examined. It features two parallel elastic tubes instrumented with flexion sensors that simulate the walls of a wound. Participants from three groups (9 novices, 7 intermediates, 9 experts) performed 10 two-handed, double square knots. The peak...
This paper presents a methodology for autonomous navigation of mobile robots with differential traction in poorly structured environments. The objective of the developed system is to navigate in areas with different types of obstacles could exist to go from one point to another without collision. The navigation methodology uses a probabilistic neur...