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公开(公告)号：US11082460B2
公开(公告)日：2021-08-03
申请号：US16455668
申请日：2019-06-27
Applicant: SYNAPTICS INCORPORATED
Inventor： Francesco Nesta , Boyan Bonev , Utkarsh Gaur
Abstract: Systems and methods for audio signal enhancement facilitated using video data are provided. In one example, a method includes receiving a multi-channel audio signal including audio inputs detected by a plurality of audio input devices. The method further includes receiving an image captured by a video input device. The method further includes determining a first signal based at least in part on the image. The first signal is indicative of a likelihood associated with a target audio source. The method further includes determining a second signal based at least in part on the multi-channel audio signal and the first signal. The second signal is indicative of a likelihood associated with an audio component attributed to the target audio source. The method further includes processing the multi-channel audio signal based at least in part on the second signal to generate an output audio signal.
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公开(公告)号：US10068124B2
公开(公告)日：2018-09-04
申请号：US15388489
申请日：2016-12-22
Applicant: Synaptics Incorporated
Inventor： Boyan Bonev
IPC: G06K9/00
Abstract: A system and method for performing spoof detection are disclosed. The method includes: receiving an input image of a biometric; generating a first filtered image by applying a first convolution to the input image based on a first convolution kernel; generating a second filtered image by applying a second convolution to the input image based on a second convolution kernel; computing a gradient residual image by subtracting, for each pixel location of the first and second filtered images, a pixel value in the second filtered image from a corresponding pixel value in the first filtered image; applying a density estimation procedure to the gradient residual image to identify areas of varied density; and, determining whether the input image is a replica of the biometric based on results of the density estimation procedure.
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公开(公告)号：US20180129857A1
公开(公告)日：2018-05-10
申请号：US15388489
申请日：2016-12-22
Applicant: Synaptics Incorporated
Inventor： Boyan Bonev
IPC: G06K9/00
CPC classification number: G06K9/00087 , A61B8/0858 , G06K9/001 , G06K9/00899
Abstract: A system and method for performing spoof detection are disclosed. The method includes: receiving an input image of a biometric; generating a first filtered image by applying a first convolution to the input image based on a first convolution kernel; generating a second filtered image by applying a second convolution to the input image based on a second convolution kernel; computing a gradient residual image by subtracting, for each pixel location of the first and second filtered images, a pixel value in the second filtered image from a corresponding pixel value in the first filtered image; applying a density estimation procedure to the gradient residual image to identify areas of varied density; and, determining whether the input image is a replica of the biometric based on results of the density estimation procedure.
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