10 documents found, page 1 of 1

Detecting and Solving Tube Entanglement in Bin Picking Operations

<jats:p>Manufacturing and production industries are increasingly turning to robots to carry out repetitive picking operations in an efficient manner. This paper focuses on tackling the novel challenge of automating the bin picking process for entangled objects, for which there is very little research. The chosen case study are sets of freely curved tubes, which are prone to occlusions and entanglement. The prop...

Vineyard Variability Analysis through UAV-Based Vigour Maps to Assess Climate C...

<jats:p>Climate change is projected to be a key influence on crop yields across the globe. Regarding viticulture, primary climate vectors with a significant impact include temperature, moisture stress, and radiation. Within this context, it is of foremost importance to monitor soils’ moisture levels, as well as to detect pests, diseases, and possible problems with irrigation equipment. Regular monitoring activi...

MULTI-PURPOSE CHESTNUT CLUSTERS DETECTION USING DEEP LEARNING: A PRELIMINARY AP...

<jats:p>&lt;p&gt;&lt;strong&gt;Abstract.&lt;/strong&gt; In the early 1980's, the European chestnut tree (&lt;i&gt;Castanea sativa, Mill.&lt;/i&gt;) assumed an important role in the Portuguese economy. Currently, the Trás-os-Montes region (Northeast of Portugal) concentrates the highest chestnuts production in Portugal, representing the major source of income in the region (€50M-€60M).&lt;/p&gt; &lt;p&gt;The rec...

USING VIRTUAL SCENARIOS TO PRODUCE MACHINE LEARNABLE ENVIRONMENTS FOR WILDFIRE ...

<jats:p>&lt;p&gt;&lt;strong&gt;Abstract.&lt;/strong&gt; Today’s climatic proneness to extreme conditions together with human activity have been triggering a series of wildfire-related events that put at risk ecosystems, as well as animal and vegetal patrimony, while threatening dwellers nearby rural or urban areas. When intervention teams - firefighters, civil protection, police - acknowledge these events, usua...

POST-FIRE FORESTRY RECOVERY MONITORING USING HIGH-RESOLUTION MULTISPECTRAL IMAG...

<jats:p>&lt;p&gt;&lt;strong&gt;Abstract.&lt;/strong&gt; In recent years unmanned aerial vehicles (UAVs) have been used in several applications and research studies related to environmental monitoring. The works performed have demonstrated the suitability of UAVs to be employed in different scenarios, taking advantage of its capacity to acquire high-resolution data from different sensing payloads, in a timely an...

Multi-Temporal Analysis of Forestry and Coastal Environments Using UASs

Co-activation of upper limb muscles during reaching in post-stroke subjects: An...

The purpose of this study was to analyze the change in antagonist co-activation ratio of upper-limb muscle pairs, during the reaching movement, of both ipsilesional and contralesional limbs of post-stroke subjects. Nine healthy and nine post-stroke subjects were instructed to reach and grasp a target, placed in the sagittal and scapular planes of movement. Surface EMG was recorded from postural control and move...

Automatic localization of the optic disc by combining vascular and intensity in...

This paper describes a new methodology for automatic location of the optic disc in retinal images, based on the combination of information taken from the blood vessel network with intensity data. The distribution of vessel orientations around an image point is quantified using the new concept of entropy of vascular directions. The robustness of the method for OD localization is improved by constraining the sear...

Automatic Lane Segmentation in TLC Images Using the Continuous Wavelet Transform

This paper describes a new methodology for lane detection in Thin-Layer Chromatography images. An approach based on the continuous wavelet transform is used to enhance the relevant lane information contained in the intensity profile obtained from image data projection. Lane detection proceeds in three phases: the first obtains a set of candidate lanes, which are validated or removed in the second phase; in the ...

Estudo epidemiológico do cancro do pulmão em Portugal nos anos de 2000/2002

O cancro do pulmão é a causa mais comum de cancro no Mundo. A sobrevida global aos 5 anos é de cerca de 15%, sem grandes previsões de mudança. Em Portugal, relativamente à doença oncológica, situa-se em terceiro lugar, sendo a primeira causa de morte por cancro. O tabaco é responsável por cerca de 85% dos casos. Um estudo efectuado em Portugal durante 3 anos (2000/2002) pela Comissão de Trabalho de Pneumologia ...