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    • openAccess   Integral imaging techniques for flexible sensing through image-based reprojection 

      Martínez Sotoca, José; Latorre Carmona, Pedro; Pla, Filiberto; Shen, Xin; Komatsu, Satoru; Javidi, Bahram OSA Publishing (2017-10)
      In this work, a 3D reconstruction approach for flexible sensing inspired by integral imaging techniques is proposed. This method allows the application of different integral imaging techniques, such as generating a depth ...

    • openAccess   Latent topic-based super-resolution for remote sensing 

      Fernandez-Beltran, Ruben; Latorre Carmona, Pedro; Pla, Filiberto Taylor & Francis (2017)
      This letter presents a novel single-image Super-Resolution (SR) approach based on latent topics specially designed to remote sensing imagery. The proposed approach pursues to super-resolve topics uncovered from ...

    • openAccess   Low-cost single-pixel 3D imaging by using an LED array 

      Salvador Balaguer, Eva; Latorre Carmona, Pedro; Chabert, Carlos; Pla, Filiberto; Lancis, Jesús; Tajahuerce, Enrique Optical Society of America (2018)
      We propose a method to perform color imaging with a single photodiode by using light structured illumination generated with a low-cost color LED array. The LED array is used to generate a sequence of color Hadamard ...

    • openAccess   Multidimensional Optical Sensing and Imaging Systems (MOSIS): From Macro to Micro Scales 

      Javidi, Bahram; Shen, Xin; Markman, Adam; Latorre Carmona, Pedro; Martínez Usó, Adolfo; Martínez Sotoca, José; Pla, Filiberto; Martínez Corral, Manuel; Saavedra, Genaro; Huang, Yi-Pai; Stern, Adrián Institute of Electrical and Electronics Engineers (IEEE) (2017)
      Multidimensional optical imaging systems for information processing and visualization technologies have numerous applications in fields such as manufacturing, medical sciences, entertainment, robotics, surveillance, and ...

    • openAccess   Multispectral integral imaging acquisition and processing using a monochrome camera and a liquid crystal tunable filter 

      Latorre Carmona, Pedro; Sánchez Ortiga, Emilio; Xiao, Xiao; Pla, Filiberto; Martínez Corral, Manuel; Navarro, Héctor; Saavedra, Genaro; Javidi, Bahram Optical Society of America (2012)
      This paper presents an acquisition system and a procedure to capture 3D scenes in different spectral bands. The acquisition system is formed by a monochrome camera, and a Liquid Crystal Tunable Filter (LCTF) that allows ...

    • openAccess   Octahedral Transforms for 3D Image Processing 

      Lenz, Reiner; Latorre Carmona, Pedro Institute of Electrical and Electronics Engineers (2009)
      The octahedral group is one of the finite subgroups of the rotation group in three-dimensional Euclidean space and a symmetry group of the cubic grid. Compression and filtering of three-dimensional volumes are given as ...

    • openAccess   On Hyperspectral Remote Sensing of Leaf Biophysical Constituents: Decoupling Vegetation Structure and Leaf Optics Using CHRIS–PROBA Data Over Crops in Barrax 

      Latorre Carmona, Pedro; Knyazikhin, Yuri; Alonso, Luis; Moreno, José F.; Pla, Filiberto; Yang, Yan IEEE (2014)
      Scattering from a leaf responds differently at different wavelengths to changes in leaf properties such as pigment concentrations, chemical constituents, internal structure, and leaf-surface properties. Radiation scattered ...

    • openAccess   Online reconstruction-free single-pixel image classification 

      Latorre Carmona, Pedro; Traver Roig, Vicente Javier; Sánchez Garreta, Josep Salvador; Tajahuerce, Enrique Elsevier (2019-04)
      In single-pixel imaging, a series of illumination patterns are projected onto an object and the reflected or transmitted light from the object is integrated by a photodetector (the single-pixel detector). Then, from the ...

    • closedAccess   Partially-coherent spirally-polarized gradual-edge imaging 

      Pérez-Aviñoa, Marcos; Martínez-Herrero, Rosario; Vallmitjana, Santiago; Latorre Carmona, Pedro; Juvells, Ignasi; Carnicer, Artur Elsevier (2019)
      In this work we develop a partially-coherent spirally-polarized imaging system for generating gradual edge detection images. A rotating diffuser is used for producing illumination sources with tunable degree of coherence. Using ...

    • openAccess   Photon Counting 3-D Object Recognition Using Digital Holography 

      Latorre Carmona, Pedro; Javidi, Bahram; Pla, Filiberto; Tajahuerce, Enrique Institute of Electrical and Electronics Engineers (IEEE) (2013)
      We present an analysis of the recognition performance of 3-D objects reconstructed from digital holograms recorded under photon counting conditions. The digital holograms are computed by applying four-step phase-shifting ...

    • openAccess   Real Time Automated Counterfeit Integrated Circuit Detection using X-ray Microscopy 

      Mahmood, Kaleel; Latorre Carmona, Pedro; Shahbazmohamadi, Sina; Pla, Filiberto; Javidi, Bahram OSA Publishing (2015-05)
      Determining the authenticity of integrated circuits is paramount to preventing counterfeit and malicious hardware from being used in critical military, healthcare, aerospace, consumer, and industry applications. Existing ...

    • closedAccess   Reply to Ollinger et al.: Remote sensing of leaf nitrogen and emergent ecosystem properties (Letter) 

      Latorre Carmona, Pedro; Knyazikhin, Yuri; Lewis, Philip; Disney, Mathias I.; Mõttus, Matti; Stenberg, Pauline; Rautiainen, Miina; Kaufmann, Robert K.; Marshak, Alexander; Schull, Mitchell A.; Vanderbilt, Vern; Davis, Anthony B.; Baret, Frédéric; Jacquemoud, Stéphane; Lyapustin, Alexei; Yang, Yan; Myneni, Ranga B. National Academy of Sciences (2013)
      Various physical, chemical, and physiological processes, including canopy structure, impact surface reflectance. Remote sensing aims to derive ecosystem properties and their functional relationships, given these impacts. ...

    • openAccess   Reply to Townsend et al.: Decoupling contributions from canopy structure and leaf optics is critical for remote sensing leaf biochemistry (Letter) 

      Latorre Carmona, Pedro; Knyazikhin, Yuri; Lewis, Philip; Disney, Mathias I.; Stenberg, Pauline; Mõttus, Matti; Rautiainen, Miina; Kaufmann, Robert K.; Marshak, Alexander; Schull, Mitchell A.; Vanderbilt, Vern; Davis, Anthony B.; Baret, Frédéric; Jacquemoud, Stéphane; Lyapustin, Alexei; Yang, Yan; Myneni, Ranga B. National Academy of Sciences (2013)
      Townsend et al. (1) agree that we explain the observed relationship (2) between foliar nitrogen (%N) and near-infrared (NIR) canopy reflectance is largely due to structure - i.e., structural variation due to fraction of ...

    • closedAccess   Security authentication using phase-encoded nanoparticle structures and polarized light 

      Carnicer, Artur; Hassanfiroozi, Amir; Latorre Carmona, Pedro; Huang, Yi-Pai; Javidi, Bahram Optical Society of America (2015)
      Phase-encoded nanostructures such as quick response (QR) codes made of metallic nanoparticles are suggested to be used in security and authentication applications. We present a polarimetric optical method able to authenticate ...

    • openAccess   Signal-to-noise ratio of single-pixel cameras based on photodiodes 

      Jauregui-Sánchez, Y.; Clemente, Pere; Latorre Carmona, Pedro; Tajahuerce, Enrique; Lancis, Jesús Optical Society of America (2018-03-01)
      Single-pixel cameras have been successfully used in different imaging applications in the last years. One of the key elements affecting the quality of these cameras is the photodetector. Here, we develop a numerical model ...

    • openAccess   Single-frame super-resolution in remote sensing: a practical overview 

      Fernandez-Beltran, Ruben; Latorre Carmona, Pedro; Pla, Filiberto Taylor & Francis (2017)
      Image acquisition technology is improving very fast from a performance point of view. However, there are physical restrictions that can only be solved using software processing strategies. This is particularly true in the ...

    • openAccess   Three Dimensional Visualization of Long Range Scenes by Photon Counting Mid-Wave Infrared Integral Imaging 

      Latorre Carmona, Pedro; Javidi, Bahram; LeMaster, Daniel (2015-07-03)
      Integral Imaging under photon counting conditions has found different three-dimensional (3D) imaging applications, including 3D image reconstruction and recognition. In this letter, we present the application of the maximum ...

    • openAccess   Three-dimensional imaging with multiple degrees of freedom using data fusion 

      Latorre Carmona, Pedro; Pla, Filiberto; Stern, Adrián; Moon, Inkyu; Javidi, Bahram Institute of Electrical and Electronics Engineers (2015)
      This paper presents an overview of research work and some novel strategies and results on using data fusion in 3-D imaging when using multiple information sources. We examine a variety of approaches and applications ...

    • openAccess   Three-Dimensional Integral Imaging for Gesture Recognition Under Occlusions 

      Traver Roig, Vicente Javier; Latorre Carmona, Pedro; Salvador Balaguer, Eva; Pla, Filiberto; Javidi, Bahram Institute of Electrical and Electronics Engineers (IEEE) (2017-02)
      Over the last years, three-dimensional (3-D) imaging has been applied to human action and gesture recognition, usually in the form of depth maps from RGB-D sensors. An alternative which has not been explored is 3-D integral ...