METHOD FOR DEPTH ESTIMATION FOR A VARIABLE FOCUS CAMERA

    公开(公告)号:US20220383525A1

    公开(公告)日:2022-12-01

    申请号:US17663643

    申请日:2022-05-16

    Applicant: Wooptix S.L.

    Abstract: The disclosure relates to a method including: capturing a sequence of images of a scene with a camera at different focus positions according to a predetermined focus schedule that specifies a chronological sequence of focus positions of the camera, extracting image features of captured images, after having extracted and stored image features from said captured images, processing a captured image whose image features have not yet been extracted, said processing comprising extracting image features from the currently processed image and storing the extracted image features, said processing further comprising aligning image features stored from the previously captured images with the image features of the currently processed image, and generating a multi-dimensional tensor representing the image features of the processed images aligned to the image features of the currently processed image, and generating a two-dimensional depth map using the focus positions in the predetermined focus schedule and the generated multi-dimensional tensor.

    Barcode detection method
    4.
    发明授权

    公开(公告)号:US11379680B2

    公开(公告)日:2022-07-05

    申请号:US17052457

    申请日:2019-05-09

    Applicant: WOOPTIX S.L.

    Abstract: The invention relates to a computer-implemented method for detecting barcodes in a digital image represented as a two-dimensional digital image array comprising: applying a filter to the image array, computing a discrete Radon transformation of the filtered image array, wherein the discrete Radon Transformation is computed for a plurality of discrete lines across the filtered image array, wherein for each given discrete line with a given slope the discrete Radon transformation is computed for a number of different displacements of the given discrete line, wherein said number of displacements is less than two times a dimension of the image array, detecting in the output of the discrete Radon transformation of the filtered image array the vertex points of a pattern, and converting the detected vertex points back to discrete lines in the image array for constraining the location of a barcode present in the digital image.

    BARCODE DETECTION METHOD
    7.
    发明申请

    公开(公告)号:US20210089736A1

    公开(公告)日:2021-03-25

    申请号:US17052457

    申请日:2019-05-09

    Applicant: WOOPTIX S.L.

    Abstract: The invention relates to a computer-implemented method for detecting barcodes in a digital image represented as a two-dimensional digital image array comprising: applying a filter to the image array, computing a discrete Radon transformation of the filtered image array, wherein the discrete Radon Transformation is computed for a plurality of discrete lines across the filtered image array, wherein for each given discrete line with a given slope the discrete Radon transformation is computed for a number of different displacements of the given discrete line, wherein said number of displacements is less than two times a dimension of the image array, detecting in the output of the discrete Radon transformation of the filtered image array the vertex points of a pattern, and converting the detected vertex points back to discrete lines in the image array for constraining the location of a barcode present in the digital image.

    Method and optical system for characterizing displays

    公开(公告)号:US12287243B2

    公开(公告)日:2025-04-29

    申请号:US17594945

    申请日:2020-04-29

    Applicant: WOOPTIX S.L.

    Abstract: The disclosure relates to a method for characterizing and operating a display, such as a light-field display or a display with or without a phase screen, comprising: an input stage wherein at least one test signal is provided as input to the display, a capture stage for obtaining display output information, said capture stage comprising capturing, by at least one acquisition system placed at a distance from the display, an impulse response of the display in response to the at least one provided test signal, wherein said capturing of an impulse response comprises measuring the at the at least one acquisition system received intensity distribution of the light emitted by the display in response to the at least one test signal, and/or capturing the wavefront phase of the light emitted by the display in response to the at least one test signal.

Patent Agency Ranking