Patents by Inventor Petteri Kyronlahti

Petteri Kyronlahti has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11625817
    Abstract: A methods and apparatuses for image processing are provided. The method may include acquiring initial image data from an image sensor. The method may further include deconstructing the initial image data in a plurality of image pyramid layers. The method may further include collapsing a first image pyramid layer with a second image pyramid layer in order to create an intermediate layer. The method may further include collapsing the intermediate layer with the subsequent image pyramid layer to create a new intermediate layer and generating the final image based on the new intermediate layer and a last image pyramid layer. A tone-mapping operator is applied to at least one of the intermediate layers.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: April 11, 2023
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventors: Uygar Tuna, Murat Birinci, Petteri Kyrönlahti, Tapio Finnilä
  • Publication number: 20220318967
    Abstract: A method and device for image processing, and storage medium are provided. In the method, an initial image I is acquired; a set of m predetermined tone-mapping functions is provided; a pixel I(i) of the initial image is selected; a pixel weight w(i) for the selected pixel I(i) is determined based on pixel information of at least the selected pixel; for each tone-mapping function, a tone-mapping function weight is determined based on the pixel weight; each tone-mapping function is applied to the selected pixel I(i) and weighting the result with the respective tone-mapping function weight; the sum of the weighted result as final pixel I? (i) is determined.
    Type: Application
    Filed: March 21, 2022
    Publication date: October 6, 2022
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD
    Inventors: Tapio FINNILÄ, Murat BIRINCI, Petteri KYRÖNLAHTI, Uygar TUNA, Ali KARAOGLU
  • Publication number: 20220318966
    Abstract: A method and device for image processing, and storage medium are provided. In the method, an initial image I is acquired; a pixel I(i) of the initial image is selected; a transfer function ƒ is applied to the pixel I(i) to acquire a transferred pixel ?(i), and the transfer function ƒ is determined on the basis of at least the pixel information of the selected pixel; a predetermined tone-mapping function is applied to the transferred pixel ?(i) to acquire a tone-mapped transferred pixel ??(i); an inverse of the transfer function ƒ?1 is applied to the tone-mapped transferred pixel ??(i) to acquire a tone-mapped final pixel I?(i). Herein, the steps are repeated for a plurality of pixels of the initial image I to generate a final image I?, and for each of the plurality pixels the same tone-mapping function is applied.
    Type: Application
    Filed: March 17, 2022
    Publication date: October 6, 2022
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Tapio FINNILÄ, Petteri KYRÖNLAHTI, Uygar TUNA, Ali KARAOGLU
  • Publication number: 20210366086
    Abstract: A methods and apparatuses for image processing are provided. The method may include acquiring initial image data from an image sensor. The method may further include deconstructing the initial image data in a plurality of image pyramid layers. The method may further include collapsing a first image pyramid layer with a second image pyramid layer in order to create an intermediate layer. The method may further include collapsing the intermediate layer with the subsequent image pyramid layer to create a new intermediate layer and generating the final image based on the new intermediate layer and a last image pyramid layer. A tone-mapping operator is applied to at least one of the intermediate layers.
    Type: Application
    Filed: May 12, 2021
    Publication date: November 25, 2021
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Uygar TUNA, Murat BIRINCI, Petteri KYRÖNLAHTI, Tapio FINNILÄ
  • Patent number: 9756256
    Abstract: Techniques related to spatially adjustable flash exposures for imaging devices are discussed. Such techniques may include adjusting region transparencies of a flash filter panel adjacent to a flash module of the image device based on flash filter panel control parameters and exposing the scene by providing a flash light from the flash module and through the flash filter control panel.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: September 5, 2017
    Assignee: Intel Corporation
    Inventors: Timo Gerasimow, Tapio Finnila, Lasse Lampinen, Petteri Kyronlahti
  • Publication number: 20160352993
    Abstract: Techniques related to spatially adjustable flash exposures for imaging devices are discussed. Such techniques may include adjusting region transparencies of a flash filter panel adjacent to a flash module of the image device based on flash filter panel control parameters and exposing the scene by providing a flash light from the flash module and through the flash filter control panel.
    Type: Application
    Filed: May 28, 2015
    Publication date: December 1, 2016
    Inventors: Timo Gerasimow, Tapio Finnila, Lasse Lampinen, Petteri Kyronlahti