Image based object detection
    2.
    发明授权

    公开(公告)号:US11373393B2

    公开(公告)日:2022-06-28

    申请号:US16751141

    申请日:2020-01-23

    Applicant: Apple Inc.

    Abstract: Systems and methods are disclosed for image-based object detection and classification. For example, methods may include accessing an image from an image sensor; applying a convolutional neural network to the image to obtain localization data to detect an object depicted in the image and to obtain classification data to classify the object, in which the convolutional neural network has been trained in part using training images with associated localization labels and classification labels and has been trained in part using training images with associated classification labels that lack localization labels; annotating the image based on the localization data and the classification data to obtain an annotated image; and storing, displaying, or transmitting the annotated image.

    Lookup-based convolutional neural network

    公开(公告)号:US11354538B2

    公开(公告)日:2022-06-07

    申请号:US16908570

    申请日:2020-06-22

    Applicant: Apple Inc.

    Abstract: Systems and methods are disclosed for lookup-based convolutional neural networks. For example, methods may include applying a convolutional neural network to image data based on an image to obtain an output, in which a layer of the convolutional network includes filters with weights that are stored as a dictionary (D) of channel weight vectors, a respective lookup index tensor (I) that indexes the dictionary, and a respective lookup coefficient tensor (C), and in which applying the convolutional neural network includes: convolving the channel weight vectors of the dictionary (D) with an input tensor based on the image to obtain an input dictionary (S), and combining entries of the input dictionary (S) that are indexed with indices from the respective lookup index tensor (I) and multiplied with corresponding coefficients from the respective lookup coefficient tensor (C); and storing, displaying, or transmitting data based on the output of the convolutional neural network.

    Butterfly transform layer
    5.
    发明授权

    公开(公告)号:US12079727B2

    公开(公告)日:2024-09-03

    申请号:US16892192

    申请日:2020-06-03

    Applicant: APPLE INC.

    Abstract: Input data having multiple channels may be received and passed through a convolutional neural network model to generate output data. Passing the input data through the convolutional neural network model may include passing the input data through a depth-wise convolutional layer configured to perform a convolution on the input data for each channel of the input data to generate first data. The first data is passed from the depth-wise convolutional layer through a butterfly transform layer comprising multiple sub-layers configured to perform a linear transformation of the first data to fuse the channels of the first data and generate second data, wherein the output data is based on the generated second data. The output data may be provided for further processing on a computing device.

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