Now showing items 1-10 of 10

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      A 148dB focal-plane tone-mapping QCIF imager  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2012)
      This paper presents a QCIF HDR imager where visual information is simultaneously captured and adaptively compressed by an in-pixel tone-mapping scheme [1]. The tone mapping curve (TMC) is calculated from the histogram of ...
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      A 151 dB high dynamic range CMOS image sensor chip architecture with tone mapping compression embedded in-pixel  [Article]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2015)
      This paper presents a high dynamic range CMOS image sensor that implements an in-pixel content-aware adaptive global tone mapping algorithm during image capture operation. The histogram of the previous frame of an auxiliary ...
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      A 176x144 148dB adaptive tone-mapping imager  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Rodríguez Vázquez, Ángel Benito (Society of Photo-Optical Instrumentation Engineers, 2012)
      This paper presents a 176x144 (QCIF) HDR image sensor where visual information is simultaneously captured and adaptively compressed by means of an in-pixel tone mapping scheme. The tone mapping curve (TMC) is calculated ...
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      A FPP-oriented tone mapping technique for high dynamic range imagers using temporal and final exposure measurements  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Roca Moreno, Elisenda; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2010)
      This paper presents a Dynamic Range improvement technique which is specially well-suited to be implemented in Focal Plane Processors due to its very limited computing requirements since only local memories and a comparator ...
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      A QCIF 145dB imager for focal plane processor chips using a tone mapping technique in standard 0.35μm CMOS technology  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Rodríguez Vázquez, Ángel Benito (2011)
      This paper presents a QCIF HDR imager where visual information is simultaneously captured and adaptively compressed by means of an in-pixel tone mapping scheme [1]. The tone mapping curve (TMC) is calculated from a ...
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      Control and acquisition system for a high dynamic range CMOS image sensor  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2012)
      A control and acquisition system for the visualization of the images captured with a High Dynamic Range (HDR) CMOS Image Sensor is developed. The image sensor is inserted in a PCB system, which performs low level control, ...
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      Form Factor Improvement of Smart-Pixels for Vision Sensors through 3-D Vertically- Integrated Technologies  [Presentation]

      Rodríguez Vázquez, Ángel Benito; Carmona Galán, Ricardo; Fernández Berni, Jorge; Vargas Sierra, Sonia; Leñero Bardallo, Juan Antonio; Suárez Cambre, Manuel; Brea Sánchez, Víctor Manuel; Pérez Verdú, Belén (Institute of Electrical and Electronics Engineers, 2014)
      While conventional CMOS active pixel sensors embed only the circuitry required for photo-detection, pixel addressing and voltage buffering, smart pixels incorporate also circuitry for data processing, data storage and ...
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      High-dynamic range tone-mapping algorithm for focal plane processors  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Roca Moreno, Elisenda; Rodríguez Vázquez, Ángel Benito (The International Society for Optics and Photonics, 2011)
      This paper presents a Dynamic Range improvement technique which is specially well-suited to be implemented in Focal Plane Processors (FPP) due to its very limited computing requirements since only local memories, little ...
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      Live demonstration: Real-time high dynamic range video acquisition using in-pixel adaptive content-aware tone mapping compression  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2015)
      This demonstration targets the acquisition of realtime video sequences involving High Dynamic Range (HDR) scenes. Adaptation to different illumination conditions while preserving contrast is achieved by using a sensor chip, ...
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      Pixel design and evaluation in CMOS image sensor technology  [Presentation]

      Vargas Sierra, Sonia; Roca Moreno, Elisenda; Liñán Cembrano, Gustavo (2009)
      A chip designed in a 0.18 μm CMOS Image Sensor Technology (CIS) is presented which incorporates different pixel design alternatives for Active Pixel Sensor (APS). CIS technology improves characteristics such as sensitivity, ...