Multi-mode image sensor
    22.
    发明授权

    公开(公告)号:US11910114B2

    公开(公告)日:2024-02-20

    申请号:US17364763

    申请日:2021-06-30

    CPC classification number: H04N25/75 H04N25/709 H04N25/79

    Abstract: In some examples, an apparatus comprises: an array of pixel cells, each pixel cell of the array of pixel cells configured to output a voltage; first analog-to-digital converters (ADCs), each first ADC being associated with a pixel cell or a block of pixel cells; second ADCs, each second ADC being associated with a column of pixel cells of the array of pixel cells; and a controller configured to: in a first mode, enable at least a subset of the first ADCs to perform a quantization operation of the voltages output by at least a subset of the pixel cells in parallel to generate a first image frame; and in a second mode, enable at least a subset of the second ADCs to perform quantization operations sequentially of the voltages output by pixel cells within at least a subset of the columns of pixel cells to generate a second image frame.

    OBJECT TRACKING USING SPARSE SENSOR CAPTURES

    公开(公告)号:US20230119703A1

    公开(公告)日:2023-04-20

    申请号:US18069896

    申请日:2022-12-21

    Abstract: In one embodiment, a computing system instructs, at a first time, a camera having a plurality of pixel sensors to use the plurality of pixel sensors to capture a first image of an environment comprising an object. The computing system predicts, using at least the first image, a projection of the object appearing in a virtual image plane associated with a predicted camera pose at a second time. The computing system determines, based on the predicted projection of the object, a first region of pixels and a second region of pixels. The computing system generates pixel-activation instructions for the first region of pixels and the second region of pixels. The computing system instructs the camera to capture a second image of the environment at the second time according to the pixel-activation instructions. The pixel-activation instructions are configured to cause a first subset of the plurality of pixel sensors to sample the first region of pixels and a second subset of the plurality of pixel sensors to sample the second region of pixels. The first subset of the plurality of pixel sensors used for sampling the first region of pixels is more dense than the second subset of the plurality of pixel sensors used for sampling the second region of pixels. The computing system tracks, based on the second image, the object at the second time.

    READOUT METHODS FOR FOVEATED SENSING
    28.
    发明公开

    公开(公告)号:US20240007771A1

    公开(公告)日:2024-01-04

    申请号:US18208236

    申请日:2023-06-09

    CPC classification number: H04N25/78 H04N25/40

    Abstract: Systems and readout methods for foveated sensing may include a pixel array, readout circuitry, and processing logic. The pixel array may have a number of pixels. The readout circuitry may be configured to read image data from the pixel array for each of the plurality of pixels. The processing logic may be configured to identify a number of regions of interest (ROIs) within the pixel array. The processing logic may be configured to associate the image data for the pixels with one or more ROIs. The processing logic may be configured to arrange the image data into data frames. The data frames may include the image data ordered by ROI. Image data for inactive pixels may be removed from the image data and data frames prior to transmission. The processing logic may be configured to transmit the data frames in an order that is based on the ROIs.

    Pixel sensor having multiple photodiodes

    公开(公告)号:US11863886B2

    公开(公告)日:2024-01-02

    申请号:US17591300

    申请日:2022-02-02

    CPC classification number: H04N25/58 H03M1/18 H04N25/59

    Abstract: In one example, an apparatus comprises: multiple distinct sets of photodiodes, wherein each set of photodiodes includes one or more photodiodes, one or more charge sensing units, and a controller. The controller is configured to: transfer charge generated by the one or more photodiodes in response to a different component of incident light to the one or more charge sensing units in order to convert the charge to voltages; perform one or more quantization processes of a plurality of quantization processes corresponding to a plurality of intensity ranges, wherein the one or more quantization processes quantizes the voltages from the one or more charge sensing units to digital values representing components of a pixel of different wavelength ranges; and generate a pixel value based on the at least some of the digital values.

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