Patents by Inventor Tapio Finnila

Tapio Finnila 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
  • Patent number: 11457191
    Abstract: A method, apparatus, and a non-transitory computer-readable storage medium for temporally stabilizing White Point (WP) information in an Auto White Balance (AWB) process. The method may include receiving lux level, AWB statistics, and input WP. The method also include generating a histogram of the AWB statistics. The method may also include generating, from the histogram, a confidence value for the input WP. The method may also include determining a major colour count. The method may also include determining a threshold value based on the major colour count and the lux level. The method may also include setting an update state to locked when the confidence value is below the threshold value and otherwise setting it to unlocked. The final WP information is obtained from a previous frame when the update state is locked and otherwise from the input WP information.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: September 27, 2022
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventors: Vladislav Uzunov, Andriy Bazhyna, Miikka Tuppurainen, Tapio Finnila, Jarno Nikkanen
  • Publication number: 20220094898
    Abstract: A method, apparatus, and a non-transitory computer-readable storage medium for temporally stabilizing White Point (WP) information in an Auto White Balance (AWB) process. The method may include receiving lux level, AWB statistics, and input WP. The method also include generating a histogram of the AWB statistics. The method may also include generating, from the histogram, a confidence value for the input WP. The method may also include determining a major colour count. The method may also include determining a threshold value based on the major colour count and the lux level. The method may also include setting an update state to locked when the confidence value is below the threshold value and otherwise setting it to unlocked. The final WP information is obtained from a previous frame when the update state is locked and otherwise from the input WP information.
    Type: Application
    Filed: July 7, 2021
    Publication date: March 24, 2022
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Vladislav UZUNOV, Andriy BAZHYNA, Miikka TUPPURAINEN, Tapio FINNILA, Jarno NIKKANEN
  • 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
  • Publication number: 20170323416
    Abstract: Fragments making up an image frame may be defined. Fragment based image analysis may be used to identify depicted objects of interest in particular fragments. Fragments are then assigned to different processing pipes based on the image analysis.
    Type: Application
    Filed: May 9, 2016
    Publication date: November 9, 2017
    Inventor: Tapio Finnila
  • 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
  • Patent number: 9219847
    Abstract: An image restoration method includes providing image data (260) including image statistics (230) using a digital camera module. A set of digital camera module characterization parameters is selected from a common dynamic camera configuration file (210) using the image statistics (230). The selected digital camera module characterization parameters are converted to image signal processing parameters and the image data is tuned using the image signal processing parameters for providing a tuned image (270). The method may involve lens shading correction as well adjusting the processing to the characteristics of the image sensor (250).
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: December 22, 2015
    Assignee: Nokia Technologies Oy
    Inventors: Tapio Finnila, Timo Gerasimow
  • Publication number: 20130308006
    Abstract: An image restoration method includes providing image data (260) including image statistics (230) using a digital camera module. A set of digital camera module characterization parameters is selected from a common dynamic camera configuration file (210) using the image statistics (230). The selected digital camera module characterization parameters are converted to image signal processing parameters and the image data is tuned using the image signal processing parameters for providing a tuned image (270). The method may involve lens shading correction as well adjusting the processing to the characteristics of the image sensor (250).
    Type: Application
    Filed: November 1, 2010
    Publication date: November 21, 2013
    Applicant: NOKIA CORPORATION
    Inventors: Tapio Finnila, Timo Gerasimow