Hawraa Amhaz

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We present in this paper a new readout technique designed in order to control the dataflow outgoing from a logarithmic image sensor. It is based on the reduction of the temporal redundancies in the streaming video frames. The main idea is to distribute the sensor into blocks of NxN pixels, then each block generates the mean value of the luminosities signals(More)
Gilles SICARD, Hassan ABBAS, Hawraa AMHAZ, Hakim ZIMOUCHE, Robin ROLLAND, David ALLEYSSON (1) CNRS, G-INP, UJF, TIMA Laboratory (2) CIME-Nanotech, (3) CNRS, UPMF, LPNC Laboratory (1) Laboratoire TIMA, 46, Avenue Félix Viallet, 38031 Grenoble, France (2) CIME-Nanotech, 3 parvis Louis Néel, BP 257 38016 Grenoble, France (3) Laboratoire LPNC, Université Pierre(More)
In this paper, we present a novel technique developed in order to extend the dynamic range of a linear CMOS image sensor. This technique allows covering all the range of luminosities by auto-choosing the appropriate integration time. The proposed system is inspired form the human vision where we mimic the neural photoreceptor adaptation. The emulation(More)
This paper is focused on our recent results on the used of local pixel interactions. We show results obtained on smart vision chips with the help of the mean value computation of small pixels block. Technical details on the implementation of this computation will be done. Then, we will focus on vision chips dedicated to the improvement of the input dynamic(More)
In this paper we present a new asynchronous readout technique designed for a single element infrared detector (SWIR HgCdTe APD). This circuit aims to perform photon counting on a hybridized detector at a cryogenic temperature for an atmospheric LIDAR (LIght Detection And Ranging) application. Accordingly, for the most important specifications, we obtain a(More)
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