Patents by Inventor Yi-Ren Ng

Yi-Ren Ng 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).

  • Publication number: 20140013273
    Abstract: A method is performed to refocus a digital photographic image comprising a plurality of pixels. In the method, a set of images is computed corresponding to the digital photographic image and focused at different depths. Refocus depths for at least a subset of the pixels are identified and stored in a look-up table. At least a portion of the digital photographic image is refocused at a desired refocus depth determined from the look-up table.
    Type: Application
    Filed: September 10, 2013
    Publication date: January 9, 2014
    Applicant: Lytro, Inc.
    Inventor: Yi-Ren Ng
  • Publication number: 20130342526
    Abstract: According to various embodiments of the invention, a system and method are provided for enabling interaction with, manipulation of, and control of depth-assigned content in depth-enhanced pictures. Depth-assigned content can be assigned to a specified depth value. When a depth-enhanced picture is refocused at a focus depth substantially different from the specified assigned depth value, the depth-assigned content may be omitted, grayed out, blurred, or otherwise visually distinguished. In this manner, content associated with an in-focus image element can be visually distinguished from content associated with an out-of-focus image element. For example, in at least one embodiment, depth-assigned content is visible only when an image element associated with the content is in focus (or nearly in focus). According to various embodiments of the invention, many different types of interactions are facilitated among depth-assigned content, depth-enhanced pictures, and other content.
    Type: Application
    Filed: June 26, 2012
    Publication date: December 26, 2013
    Inventors: Yi-Ren Ng, Eric Cheng, Chia-Kai Liang, Kayvon Fatahalian, David John Evans, Kira Wampler, Kristen Berman, Kurt Barton Akeley
  • Patent number: 8614764
    Abstract: Systems and methods are directed to acquiring, generating, manipulating and/or editing video data/frames. The video frames may be light field video frames having virtual aperture parameters that may be adjusted after acquisition or recording of such video frames. In one aspect, a method comprises: selecting a first key frame, wherein the first key frame corresponds to one of a plurality of light field video frames; selecting a second key frame, wherein the second key frame corresponds to one of the plurality of light field video frames which is temporally spaced apart from the first key frame such that a plurality of light field video frames are temporally disposed between the first and the second key frames; determining virtual aperture parameters for the first key frame and the second key frame; and generating video data.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: December 24, 2013
    Assignee: Lytro, Inc.
    Inventors: Colvin Pitts, Yi-Ren Ng
  • Patent number: 8570426
    Abstract: Certain systems and methods are directed to acquiring, generating, manipulating and/or editing (for example, focusing or refocusing) refocusable video data, information, images and/or frames. The refocusable video data, information, images and/or frames may be light field video data, information, images and/or frames, that may be focused and/or re-focused after acquisition or recording of such video data, information, images and/or frames.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: October 29, 2013
    Assignee: Lytro, Inc.
    Inventors: Colvin Pitts, Yi-Ren Ng
  • Patent number: 8559705
    Abstract: A method is performed to refocus a digital photographic image comprising a plurality of pixels. In the method, a set of images is computed corresponding to the digital photographic image and focused at different depths. Refocus depths for at least a subset of the pixels are identified and stored in a look-up table. At least a portion of the digital photographic image is refocused at a desired refocus depth determined from the look-up table.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: October 15, 2013
    Assignee: Lytro, Inc.
    Inventor: Yi-Ren Ng
  • Patent number: 8547475
    Abstract: Image data is processed to facilitate focusing and/or optical correction. According to an example embodiment of the present invention, an imaging arrangement collects light data corresponding to light passing through a particular focal plane. The light data is collected using an approach that facilitates the determination of the direction from which various portions of the light incident upon a portion of the focal plane emanate from. Using this directional information in connection with value of the light as detected by photosensors, an image represented by the light is selectively focused and/or corrected.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: October 1, 2013
    Assignee: The Board of Trustees of the Leland Stanford Junior Univeristy
    Inventors: Yi-Ren Ng, Patrick M. Hanrahan, Mark A. Horowitz, Marc S. Levoy
  • Publication number: 20130235267
    Abstract: Systems and methods are directed to acquiring, generating, manipulating and/or editing video data/frames. The video frames may be light field video frames having virtual aperture parameters that may be adjusted after acquisition or recording of such video frames. In one aspect, a method comprises: selecting a first key frame, wherein the first key frame corresponds to one of a plurality of light field video frames; selecting a second key frame, wherein the second key frame corresponds to one of the plurality of light field video frames which is temporally spaced apart from the first key frame such that a plurality of light field video frames are temporally disposed between the first and the second key frames; determining virtual aperture parameters for the first key frame and the second key frame; and generating video data.
    Type: Application
    Filed: April 22, 2013
    Publication date: September 12, 2013
    Applicant: Lytro, Inc.
    Inventors: Colvin Pitts, Yi-Ren Ng
  • Patent number: 8446516
    Abstract: Systems and methods are directed to acquiring, generating, manipulating and/or editing refocusable video data/frames. The refocusable video frames may be light field video frames that may be focused and/or refocused after acquisition or recording of such video frames. In one aspect, a method comprises: selecting a first key frame, wherein the first key frame corresponds to one of a plurality of refocusable light field video frames; selecting a second key frame, wherein the second key frame corresponds to one of the plurality of refocusable light field video frames which is temporally spaced apart from the first key frame such that a plurality of refocusable light field video frames are temporally disposed between the first and the second key frames; determining virtual focus parameters for the first key frame and the second key frame; and generating video data.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: May 21, 2013
    Assignee: Lytro, Inc.
    Inventors: Colvin Pitts, Yi-Ren Ng
  • Patent number: 8395696
    Abstract: Image data is processed to facilitate focusing and/or optical correction. According to an example embodiment of the present invention, an imaging arrangement collects light data corresponding to light passing through a particular focal plane. The light data is collected using an approach that facilitates the determination of the direction from which various portions of the light incident upon a portion of the focal plane emanate from. Using this directional information in connection with value of the light as detected by photosensors, an image represented by the light is selectively focused and/or corrected.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: March 12, 2013
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yi-Ren Ng, Patrick M. Hanrahan, Marc A. Levoy, Mark A. Horowitz
  • Publication number: 20130033626
    Abstract: Various approaches to imaging involve selecting directional and spatial resolution. According to an example embodiment, images are computed using an imaging arrangement to facilitate selective directional and spatial aspects of the detection and processing of light data. Light passed through a main lens is directed to photosensors via a plurality of microlenses. The separation between the microlenses and photosensors is set to facilitate directional and/or spatial resolution in recorded light data, and facilitating refocusing power and/or image resolution in images computed from the recorded light data. In one implementation, the separation is varied between zero and one focal length of the microlenses to respectively facilitate spatial and directional resolution (with increasing directional resolution, hence refocusing power, as the separation approaches one focal length).
    Type: Application
    Filed: July 5, 2012
    Publication date: February 7, 2013
    Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Yi-Ren NG, Patrick M. Hanrahan, Mark A. Horowitz, Marc S. Levoy
  • Publication number: 20130033636
    Abstract: An optical assembly includes a solid spacing layer between a plenoptic microlens array (MLA) and a pixel-level MLA, avoiding the need for an air gap. Such an assembly, and systems and methods for manufacturing same, can yield improved reliability and efficiency of production, and can avoid many of the problems associated with prior art approaches. In at least one embodiment, the plenoptic MLA, the spacing layer, and the pixel-level MLA are created from optically transmissive polymer(s) deposited on the photosensor array and shaped using photolithographic techniques. Such an approach improves precision in placement and dimensions, and avoids other problems associated with conventional polymer-on-glass architectures. Further variations and techniques are described.
    Type: Application
    Filed: July 27, 2012
    Publication date: February 7, 2013
    Applicant: LYTRO, INC.
    Inventors: Colvin Pitts, Yi-Ren Ng, Steven Oliver
  • Patent number: 8358367
    Abstract: Image data is processed to facilitate focusing and/or optical correction. According to an example embodiment of the present invention, an imaging arrangement collects light data corresponding to light passing through a particular focal plane. The light data is collected using an approach that facilitates the determination of the direction from which various portions of the light incident upon a portion of the focal plane emanate from. Using this directional information in connection with value of the light as detected by photosensors, an image represented by the light is selectively focused and/or corrected.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: January 22, 2013
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yi-Ren Ng, Patrick M. Hanrahan, Marc A. Levoy, Mark A. Horowitz
  • Patent number: 8358354
    Abstract: Digital images are computed using an approach for correcting lens aberration. According to an example embodiment of the present invention, a digital imaging arrangement implements microlenses to direct light to photosensors that detect the light and generate data corresponding to the detected light. The generated data is used to compute an output image, where each output image pixel value corresponds to a selective weighting and summation of a subset of the detected photosensor values. The weighting is a function of characteristics of the imaging arrangement. In some applications, the weighting reduces the contribution of data from photosensors that contribute higher amounts of optical aberration to the corresponding output image pixel.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: January 22, 2013
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yi-Ren Ng, Patrick M. Hanrahan, Mark A. Horowitz, Marc S Levoy
  • Publication number: 20120327222
    Abstract: A light field data acquisition device includes optics and a light field sensor to acquire light field image data of a scene. In at least one embodiment, the light field sensor is located at a substantially fixed, predetermined distance relative to the focal point of the optics. In response to user input, the light field acquires the light field image data of the scene, and a storage device stores the acquired data. Such acquired data can subsequently be used to generate a plurality of images of the scene using different virtual focus depths.
    Type: Application
    Filed: September 4, 2012
    Publication date: December 27, 2012
    Applicant: LYTRO, INC.
    Inventors: Yi-Ren Ng, Colvin Pitts, Timothy Knight
  • Publication number: 20120300097
    Abstract: Various approaches to imaging involve selecting directional and spatial resolution. According to an example embodiment, images are computed using an imaging arrangement to facilitate selective directional and spatial aspects of the detection and processing of light data. Light passed through a main lens is directed to photosensors via a plurality of microlenses. The separation between the microlenses and photosensors is set to facilitate directional and/or spatial resolution in recorded light data, and facilitating refocusing power and/or image resolution in images computed from the recorded light data. In one implementation, the separation is varied between zero and one focal length of the microlenses to respectively facilitate spatial and directional resolution (with increasing directional resolution, hence refocusing power, as the separation approaches one focal length).
    Type: Application
    Filed: July 5, 2012
    Publication date: November 29, 2012
    Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Yi-Ren NG, Patrick M. Hanrahan, Mark A. Horowitz, Marc S. Levoy
  • Publication number: 20120294590
    Abstract: Systems and methods are directed to acquiring, generating, manipulating and/or editing refocusable video data/frames. The refocusable video frames may be light field video frames that may be focused and/or refocused after acquisition or recording of such video frames. In one aspect, a method comprises: selecting a first key frame, wherein the first key frame corresponds to one of a plurality of refocusable light field video frames; selecting a second key frame, wherein the second key frame corresponds to one of the plurality of refocusable light field video frames which is temporally spaced apart from the first key frame such that a plurality of refocusable light field video frames are temporally disposed between the first and the second key frames; determining virtual focus parameters for the first key frame and the second key frame; and generating video data.
    Type: Application
    Filed: July 31, 2012
    Publication date: November 22, 2012
    Applicant: LYTRO, INC.
    Inventors: Colvin Pitts, Yi-Ren Ng
  • Patent number: 8289440
    Abstract: A light field data acquisition device includes optics and a sensor to acquire light field image data of a scene. In at least one embodiment, the sensor is located at a substantially fixed, predetermined location relative to the focal point of the optics. The device determines a first virtual focus depth different from an optical focus depth of the light field image data, and automatically generates and outputs data representative of a first image of the scene at the first virtual focus depth. In response to user input, the device determines a second virtual focus depth and generates data representative of a second image of the scene at the second virtual focus depth.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: October 16, 2012
    Assignee: Lytro, Inc.
    Inventors: Timothy J. Knight, Yi-Ren Ng, Colvin Pitts
  • Publication number: 20120249550
    Abstract: A system and method are provided for storing, manipulating, and/or transmitting image data, such as light field photographs and the like, in a manner that efficiently delivers different capabilities and features based on device attributes, user requirements and preferences, context, and/or other factors. Acceleration structures are provided, which enable selective use of certain types of data (also referred to as “assets”) based on device attributes such as image size, desired functionality, user preference, and/or the like. In this manner, the system and method of the present invention takes into account specific attributes and parameters in determining which data should be included, so as to optimize transmission, storage, and/or rendering of image data, including light field data, to improve efficiency and avoid waste of resources.
    Type: Application
    Filed: June 14, 2012
    Publication date: October 4, 2012
    Applicant: LYTRO, INC.
    Inventors: Kurt Barton Akeley, Yi-Ren Ng, Kenneth Wayne Waters, Kayvon Fatahalian, Timothy James Knight, Yuriy Aleksandrovich Romanenko, Chia-Kai Liang, Colvin Pitts, Thomas Hanley, Mugur Marculescu
  • Patent number: 8279325
    Abstract: Systems and methods directed to acquiring, generating, manipulating and/or editing refocusable video data/frames. The refocusable video frames may be light field video frames that may be focused and/or re-focused after acquisition or recording of such video frames. In one aspect, method comprises: selecting a first key frame, wherein the first key frame corresponds to one of a plurality of refocusable light field video frames, selecting a second key frame, wherein the second key frame corresponds to one of the plurality of refocusable light field video frames which is temporally spaced apart from the first key frame such that a plurality of refocusable light field video frames are temporally disposed between the first and the second key frames, determining a virtual focus parameters for the first key frame and the second key frame, and generating first video data.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: October 2, 2012
    Assignee: Lytro, Inc.
    Inventors: Colvin Pitts, Yi-Ren Ng
  • Publication number: 20120229682
    Abstract: Digital images are computed using an approach for correcting lens aberration. According to an example embodiment of the present invention, a digital imaging arrangement implements microlenses to direct light to photosensors that detect the light and generate data corresponding to the detected light. The generated data is used to compute an output image, where each output image pixel value corresponds to a selective weighting and summation of a subset of the detected photosensor values. The weighting is a function of characteristics of the imaging arrangement. In some applications, the weighting reduces the contribution of data from photosensors that contribute higher amounts of optical aberration to the corresponding output image pixel.
    Type: Application
    Filed: May 8, 2012
    Publication date: September 13, 2012
    Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Yi-Ren NG, Patrick M. Hanrahan, Mark A. Horowitz, Marc S. Levoy