Now showing items 1-11 of 11

    • A tractor-mounted scanning LIDAR for the non-destructive measurement of vegetative volume and surface area of tree-row plantations: a comparison with conventional destructive measurements 

      Rosell Polo, Joan Ramon; Sanz Cortiella, Ricardo; Llorens Calveras, Jordi; Arnó Satorra, Jaume; Escolà i Agustí, Alexandre; Ribes Dasi, Manuel; Masip Vilalta, Joan; Camp, Ferran; Gràcia, Felip; Solanelles Batlle, Francesc; Pallejà Cabrè, Tomàs; Val, Luis; Planas de Martí, Santiago; Gil Moya, Emilio; Palacín Roca, Jordi (Elsevier, 2009)
      The use of a low-cost tractor-mounted scanning Light Detection and Ranging (LIDAR) system for capable of making non-destructive recordings of tree-row structure in orchards and vineyards is described. Field tests consisted ...
    • Georeferenced Scanning System to Estimate the Leaf Wall Area in Tree Crops 

      Moral Martínez, Ignacio del; Rosell Polo, Joan Ramon; Arnó Satorra, Jaume; Escolà i Agustí, Alexandre; Sanz Cortiella, Ricardo; Masip Vilalta, Joan; Company Mesa, Joaquim (MDPI, 2015)
      This paper presents the use of a terrestrial light detection and ranging (LiDAR) system to scan the vegetation of tree crops to estimate the so-called pixelated leaf wall area (PLWA). Scanning rows laterally and considering ...
    • Influence of the scanned side of the row in terrestrial laser sensor applications in vineyards: practical consequences 

      Arnó Satorra, Jaume; Escolà i Agustí, Alexandre; Masip Vilalta, Joan; Rosell Polo, Joan Ramon (Springer, 2015)
      Terrestrial laser scanners (TLS) have been used to estimate leaf area and optimise the site-specific management in vineyards. The tree area index (TAI) is a parameter that can be obtained from TLS measurements and has been ...
    • Innovative LIDAR 3D dynamic measurement system to estimate fruit-tree leaf area 

      Sanz Cortiella, Ricardo; Llorens Calveras, Jordi; Escolà i Agustí, Alexandre; Arnó Satorra, Jaume; Ribes Dasi, Manuel; Masip Vilalta, Joan; Camp, Ferran; Gràcia Aguilà, Felipe José; Solanelles Batlle, Francesc; Planas de Martí, Santiago; Pallejà Cabrè, Tomàs; Palacín Roca, Jordi; Gregorio López, Eduard; Del Moral Martínez, Ignacio; Rosell Polo, Joan Ramon (Molecular Diversity Preservation International (MDPI), 2011)
      In this work, a LIDAR-based 3D Dynamic Measurement System is presented and evaluated for the geometric characterization of tree crops. Using this measurement system, trees were scanned from two opposing sides to obtain two ...
    • Leaf area index estimation in vineyards using a ground-based LiDAR scanner 

      Arnó Satorra, Jaume; Escolà i Agustí, Alexandre; Vallès Petit, Josep Maria; Llorens Calveras, Jordi; Sanz Cortiella, Ricardo; Masip Vilalta, Joan; Palacín Roca, Jordi; Rosell Polo, Joan Ramon (Springer, 2013)
      Estimation of grapevine vigour using mobile proximal sensors can provide an indirect method for determining grape yield and quality. Of the various indexes related to the characteristics of grapevine foliage, the leaf area ...
    • LIDAR as an alternative to passive collectors to measure pesticide spray drift 

      Gregorio López, Eduard; Rosell Polo, Joan Ramon; Sanz Cortiella, Ricardo; Rocadenbosch Burillo, Francesc; Solanelles Batlle, Francesc; Garcerá, Cruz; Chueca, Patricia; Arnó Satorra, Jaume; Moral Martínez, Ignacio del; Masip Vilalta, Joan; Camp, Ferran; Viana, R.G.; Escolà i Agustí, Alexandre; Gràcia, Felip; Planas de Martí, Santiago; Moltó, Enrique (Elsevier, 2014)
      Pesticide spray drift entails a series of risks and costs in terms of human, animal and environmental well-being. A proper understanding of this phenomenon is essential to minimise these risks. However, most conventional ...
    • Lidar: towards a new methodology for field measurement of spray drift 

      Gregorio López, Eduard; Torrent Martí, Xavier; Solanelles Batlle, Francesc; Sanz Cortiella, Ricardo; Rocadenbosch Burillo, Francesc; Masip Vilalta, Joan; Ribes Dasi, Manuel; Planas de Martí, Santiago; Rosell Polo, Joan Ramon (Association of Applied Biologists, 2016)
      Lidar technology is becoming a promising alternative for spray drift measurement to the labour and time-expensive methodologies based on the ISO 22866 standard. This paper presents last advancements in an eye-safe lidar ...
    • Mapping vineyard leaf area using mobile terrestrial laser scanners: should rows be scanned on-the-go or discontinuosly sampled? 

      Moral Martínez, Ignacio del; Rosell Polo, Joan Ramon; Company Mesa, Joaquim; Sanz Cortiella, Ricardo; Escolà i Agustí, Alexandre; Masip Vilalta, Joan; Martínez Casasnovas, José Antonio; Arnó Satorra, Jaume (Molecular Diversity Preservation International, 2016-01-19)
      The leaf area index (LAI) is defined as the one-side leaf area per unit ground area, and is probably the most widely used index to characterize grapevine vigor. However, LAI varies spatially within vineyard plots. Mapping ...
    • Measurement of spray drift with a specifically designed lidar system 

      Gregorio López, Eduard; Torrent Martí, Xavier; Planas de Martí, Santiago; Solanelles Batlle, Francesc; Sanz Cortiella, Ricardo; Rocadenbosch Burillo, Francesc; Masip Vilalta, Joan; Rosell Polo, Joan Ramon; Ribes Dasi, Manuel (MDPI, 2016)
      Field measurements of spray drift are usually carried out by passive collectors and tracers. However, these methods are labour- and time-intensive and only provide point- and time-integrated measurements. Unlike these ...
    • Obtaining the three-dimensional structure of tree orchards from remote 2D terrestrial LIDAR scanning 

      Rosell Polo, Joan Ramon; Llorens Calveras, Jordi; Sanz Cortiella, Ricardo; Arnó Satorra, Jaume; Ribes Dasi, Manuel; Masip Vilalta, Joan; Escolà i Agustí, Alexandre; Camp, Ferran; Solanelles Batlle, Francesc; Gràcia, Felip; Gil Moya, Emilio; Val, Luis; Planas de Martí, Santiago; Palacín Roca, Jordi (Elsevier, 2009)
      In recent years, LIDAR (light detection and ranging) sensors have been widely used to measure environmental parameters such as the structural characteristics of trees, crops and forests. Knowledge of the structural ...
    • Real-time tree-foliage surface estimation using a ground laser scanner 

      Palacín Roca, Jordi; Pallejà Cabrè, Tomàs; Tresánchez Ribes, Marcel; Ribes Dasi, Manuel; Llorens Calveras, Jordi; Escolà i Agustí, Alexandre; Rosell Polo, Joan Ramon; Sanz Cortiella, Ricardo; Masip Vilalta, Joan; Arnó Satorra, Jaume (Institute of Electrical and Electronics Engineers (IEEE), 2007)
      The optimization of most pesticide and fertilizer applications is based on overall grove conditions. In this work we measurements. Recently, Wei [9, 10] used a terrestrial propose a measurement system based on a ground ...