Gopro, Inc.

Centre National De La Recherche Scientifique

Université Paris Diderot-Paris 7

Institute Telecom-telecom Paris Tech

Centre National De La Recherche Scientifique-cnrs

Institut Telecom/telecom Paristech

Julie Delon

Matias Tassano Ferrés

Thomas Nicolas Emmanuel Veit

Marc Lebrun

Elsa Angelini

Emmanuel Mandonnet

Pablo Muse Freire

Thomas Nicolas Emmanuel

An image capture device includes an image sensor and a processor. The image sensor is configured to capture a first plurality of frames, a second plurality of frames, and a third plurality of frames. The processor includes a first denoising layer and a second denoising layer. The first denoising layer includes a first denoiser, a second denoiser, and a third denoiser. The first denoiser is configured to denoise the first plurality of frames and output a first denoised frame. The second denoiser is configured to denoise the second plurality of frames and output a second denoised frame. The third denoiser is configured to denoise the third plurality of frames and output a third denoised frame. The second denoising layer includes a fourth denoiser. The fourth denoiser is configured to output a denoised frame based on the first denoised frame, the second denoised frame, and the third denoised frame.

Method and apparatus for convolutional neural network-based video denoising

A method for deblurring a target image includes receiving a burst of images that includes the target image; partitioning respective images of the burst of images into respective patches; converting, to a frequency domain, the respective patches into respective transform patches; selecting a first set of corresponding transform patches from the respective transform patches, where the first set of the corresponding transform patches includes a respective transform patch for a respective image of the burst of images; obtaining, using a neural network, respective weight maps for the corresponding transform patches; obtaining a deblurred transform patch by combining the first set of corresponding transform patches using the respective weight maps; obtaining a first deblurred patch by converting the deblurred transform patch to a pixel domain; and obtaining a deblurred image of the target image using the first deblurred patch.

Burst deblurring with kernel estimation networks

A method and apparatus for denoising a video are disclosed. The method includes obtaining multiple frames of the video. One or more frames of the video may be temporally precedent or temporally subsequent to a central frame. The method includes performing a first denoising of the multiple frames. The method includes concatenating the denoised frames into a concatenated input. The method includes performing a second denoising of the concatenated input. The method includes outputting a denoised frame based on the denoised concatenated input.

Implementations disclosed herein include an image capture device, a system, and a method for performing multiscale denoising of an image. An image processor of the image capture device obtains a first image. The first image may be in any format and may include noise artifacts. The image processor decomposes the first image into one or more sub-images. The sub-images may range from a coarse scale to a fine scale. In some implementations, the image processor iteratively denoises each of the one or more sub-images from the coarse scale to the fine scale. The image processor reconstructs the one or more denoised sub-images to produce a denoised image. A memory of the image capture device may be configured to store the denoised image.

Multiscale denoising of raw images with noise estimation

Implementations disclosed herein include an image capture device, a system, and a method for performing multiscale denoising of a video. An image processor of the image capture device obtains a video frame. The video frame may be in any format and may include noise artifacts. The image processor decomposes the video frame into one or more sub-frames. In some implementations, the image processor denoises each of the one or more sub-frames. The image processor decomposes one or more video frames in a temporal buffer into one or more temporal sub-frames. The image processor denoises each of the temporal sub-frames. The image processor reconstructs the one or more denoised sub-frames and the one or more temporal sub-frames to produce a denoised video frame. A memory of the image capture device may be configured to store the denoised video frame.

Multiscale denoising of videos

A method for quantifying the development of pathologies involving changes in volume of a body represented via an imaging technique, including normalizing gray levels by a midway technique for two images Iand Irepresenting the same scene, resulting in two normalized images I'and I&#x2032;; calculating a map of signed differences between the two normalized images I&#x2032;and I&#x2032;; and performing one or more statistical tests based on the assumption of a Gaussian distribution of the gray levels for healthy tissues in the normalized images I&#x2032;and I&#x2032;and/or in the calculated difference map. Advantageously, results of two or more of the tests can be combined for a more specific characterization of the development.

Growing community of inventors

Paris, France

Julie Delon