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Detecção de ninhos de formigas do gênero Atta utilizando visão computacional e quadrirrotores
(Universidade Federal de São Carlos, 2023-07-04) Almeida, Tayná Bertacine de; Hernandes, André Carmona; https://lattes.cnpq.br/6806138514642732; https://orcid.org/0000-0002-1709-9903; https://lattes.cnpq.br/0469751278227888; https://orcid.org/0000-0002-1046-4373
In the last 40 years, Brazilian agricultural production and productivity have had significant increases. Agribusiness has been strongly recognised in the growth of the Brazilian Gross Domestic Product, which has resulted in investments and technological advances in the agricultural sector. With these technological advances came precision agriculture. As part of the advances in precision agriculture, Unmanned Aircraft are gaining more and more space, given their flexibility of use and diversity of applications. At the same time, the use of computer vision and machine learning brings analysis technologies that further optimise processes, such as pasture mapping and pest detection. And when it comes to crop pests, leaf-cutter ants come to mind. The direct and indirect damage that leaf-cutting ants can cause amounts to billions of dollars worldwide. The leaf-cutting ant, known as Sauva, is one of the insects that causes most damage to pastures in southeastern Brazil, even competing with cattle for grass. Pest control is of paramount importance for the growth of agricultural production, therefore, this article presents the proposal for the development of an algorithm capable of detecting anthills. Based on recent tech nological advances and cost reduction, the proposed detection was performed using an unmanned aerial vehicle with an integrated conventional RGB camera and an algorithm, based on computer vision and machine learning. The proposed classification algorithm was Random Forest and it presented an accuracy of approximately 70%. The applica tion of computer vision and quadrotors in the detection of ant nests represented a good opportunity to boost precision agriculture and pest control in the field.
Bluesman: hibridismo entre música, videoclipe e cinema
(Universidade Federal de São Carlos, 2023-07-04) Silva, Monyse Rayne Damasceno da; Miranda, Suzana Reck; https://lattes.cnpq.br/8566012598222563; Paiva, Samuel José Holanda de; https://lattes.cnpq.br/7222933274927263; https://lattes.cnpq.br/6774482824053002
Focusing on relations between sound and image, this study stems from Bluesman - The film (2018), by director Douglas Bernardt, which proposes a hybrid discursive strategy, bringing music, music video and cinema closer, based on songs from the homonymous phonographic album by rapper Baco Exu do Blues. Considering as premises and theoretical reference works and concepts by authors who are related to the field in question - among others, Carol Vernallis, Rodrigo Oliva and Thiago Soares -, the analysis undertaken in this dissertation intends to contribute to such debate, building it around an intermedial method. As a hypothesis, the investigation follows in order to understand the concept of “cineclipe” related to short films language is situated between cinema and music video. Therefore, reflections on Bluesman - The film are given in three perspectives (corresponding to the three chapters of this work), namely: the film; the phonographic album; and the political discourse for the affirmation of black culture.