Nokia Technologies Oy

Jonne Juhani Mäkinen

Miska Matias Hannuksela

Emre Baris Aksu

Juha-Pekka Hippeläinen

Miikka Tapani Vilermo

Sampo Vesa

Riitta Elina Vaananen

Olli Kilpelainen

Jani Kattelus

To implement some methods of attenuating noise it can be useful to obtain an accurate estimate of the noise in the microphone signals. Examples of the disclosure provide a method of accurately estimating incoherent noise levels. In examples of the disclosure a primary estimation of a noise amount is made. The primary estimation of a noise amount is used to determine a direction parameter and a diffuseness parameter. The determined direction parameter and the estimated diffuseness parameter are used to estimate a predicted level difference between a first microphone signal and a second microphone signal. A level difference between the first microphone signal and the second microphone signal is determined and a noise level is estimated using at least the determined level difference and the predicted level difference.

Estimating noise levels

A method, apparatus and computer program product are provided to signal grouping types in an image container file. Relative to the construction of an image container file, the method, apparatus and computer program product construct an image container file having a group box with a grouping type associated with burst-captured images, time-synchronized images captured by a plurality of image capture devices or an image item associated with an audio track. With respect to the processing of an image container file, the method, apparatus and computer program product permit an image container file having a group box with a grouping type associated with one of burst-captured images, time-synchronized images captured by a plurality of image capture devices or an image item associated with an audio track to be processed to cause one or more image items from the image container file to be rendered in accordance with the grouping type.

Method and apparatus for signaling grouping types in an image container file

The embodiments relate to a method comprising receiving visual data in a file format compatible with ISO base media file format; processing the visual data to detect one or more content elements; storing the detected one or more content elements and information on the used process as a metadata; and including the metadata to the media file in association with the visual data. The embodiments also relate to a technical equipment for implementing the method.

Apparatus and a method for artificial intelligence

Growing community of inventors

Tampere, Finland

Jonne Juhani Mäkinen