Abstract: The invention relates to an electronic device for analyzing a scene, including a plurality of pixels (101) connected to a readout circuit (103) by a same first conductive track (105), wherein: each pixel (101) is capable of detecting an occurrence of a first event characteristic of the scene and of transmitting an event indication signal on the first conductive track (105) when it detects an occurrence of the first event; and the readout circuit (103) is capable of reading from the first conductive track (105) the event indication signals transmitted by the pixels (101) and of deducing therefrom characteristics of the scene, without transmitting event acknowledgement signals to the pixels (101).

Abstract: The present invention involves a CMOS image sensor including: a plurality of pixels distributed in a plurality of subsets, each subset defining a measurement support; and a circuit capable of implementing a compressive image sensing method, the method including: for a given integration time of the sensor pixels, reading, for each measurement support, a single output value based on the output values of a pseudo-random selection of one or a plurality of pixels of the support.

Abstract: A method of generating, by means of a processing device, a depth map and/or a fully focused image of a scene, from a series of images of the scene taken under a same viewing angle but with a different focusing, the method including the steps of: a) for each position of a pixel in the series of images, searching for an extremum of the pixel value in the series of images; and b1) assigning to said pixel position a depth value which is a function of the rank, in the series of images, of the image where the extremum has been identified at step a) to construct a depth map of the scene, and/or b2) assigning to said pixel position the value of the extremum identified at step a) to construct a fully focused image of the scene.

Abstract: A sigma-delta converter comprises a sigma-delta modulator suitable for supplying a series of binary samples (BS(k)) representative of an analogue input signal (Vin) to be digitized, in which at least one analogue signal internal to the modulator is weighted by a coefficient that is variable according to a first predetermined law (f).

Abstract: A sigma-delta converter including a sigma-delta modulator including at least one analog filter capable, for each cycle of a conversion phase, of receiving an internal analog signal originating from the analog input signal and of supplying an analog output signal, wherein: the contribution of the internal analog signal to the output value of the filter is smaller at a given cycle of the conversion phase than at a previous cycle, the contributions to the different cycles being governed by a first predetermined law which is a function of the rank of the cycle; and the duration of a given cycle of the conversion phase is shorter than the duration of a previous cycle, the durations of the different cycles being governed by a second predetermined law which is a function of the rank of the cycle in the conversion phase.

Abstract: A system for acquiring a hyperspectral image, including: a grey level image sensor; and a diffuser and dispersive element placed on the optical path between the sensor and a scene, this element including an array of individually-controllable liquid crystal cells, where each cell can receive a control voltage selected from among a series of at least three different control voltages.

Abstract: A CMOS image sensor including: a plurality of pixels; a first analog circuit for calculating one or a plurality of statistical estimators based on the analog output values of sensor pixels; and a second circuit capable of implementing a compressive image sensing method, wherein the applied compression rate is a function of the statistical estimator(s) calculated by the first circuit.

Abstract: A system for acquiring a hyperspectral image, including: a grey level image sensor; and a diffuser and dispersive element placed on the optical path between the sensor and a scene, this element including an array of individually-controllable liquid crystal cells, where each cell can receive a control voltage selected from among a series of at least three different control voltages.

Abstract: A CMOS image sensor including: a plurality of pixels; a first analog circuit for calculating one or a plurality of statistical estimators based on the analog output values of sensor pixels; and a second circuit capable of implementing a compressive image sensing method, wherein the applied compression rate is a function of the statistical estimator(s) calculated by the first circuit.

Abstract: The present invention involves a CMOS image sensor including: a plurality of pixels distributed in a plurality of subsets, each subset defining a measurement support; and a circuit capable of implementing a compressive image sensing method, the method including: for a given integration time of the sensor pixels, reading, for each measurement support, a single output value based on the output values of a pseudo-random selection of one or a plurality of pixels of the support.