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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)
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)
With a basic CMOS imager, it is impossible to encode the High Dynamic Range (HDR) of natural scenes due to several drawbacks: Mainly of them are the limited DR of the pixel and the output limitation due to the quantification of the analog to digital converter (ADC). Many solutions propose to enhanced the input DR or change integration time following the(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)
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