Patents by Inventor Wan Chi Siu

Wan Chi Siu 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: 11468543
    Abstract: A neural network receives mono-color pixels in a Bayer pattern from an image sensor and interpolates pixels to generate full-color RGB pixels while also enlightening the image for better detail. A Back-Projection (BP) layer is added to each contracting layer in a U-net convolution neural network where feature depth is increased as pixels are downsampled, while a BP channel shrink layer is added to each expansion layer where feature depth is reduced to upsample and increase pixel resolution. Convolution layers in the BP layer lighten and darken images to generate an error that is then lightened and added to a weighted lightened input. The neural network learns the best weightings to correct for noise and error in the lightening process in these BP layers. Noise is reduced further by repeating a convolution and leaky Rectified Linear Unit (lrelu) in series for the first convolution in the BP layer that performs lightening.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: October 11, 2022
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Li-Wen Wang, Wan-Chi Siu, Zhi-Song Liu, Yan Huo, Xingbo Guan, Miaohui Hao
  • Publication number: 20140002594
    Abstract: A depth map image, unlike a texture view, has smooth regions without complex texture and abrupt changes of pixel value at the object edges. While conventional Inter-prediction skip mode is very efficient for coding texture views, it does not include any Intra-prediction capability, which can be very efficient for coding smooth regions. The hybrid prediction skip mode according to the presently claimed invention includes an Inter-prediction Skip mode coupled with various Intra-prediction modes. The selection of the prediction mode is made by computing a Side Match Distortion (SMD) for the prediction modes. Because no additional overhead indicator bit is required and that the bitstream syntax is not altered, high coding efficiency is maintained and the coding scheme for coding depth maps in accordance to the presently disclosed invention can be implemented easily as an extension to existing standards.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Yui-Lam Chan, Sik-Ho Tsang, Wan-Chi Siu, Hoi-Kok Cheung, Wai-Lam Hui, Pak-Kong Lun, Junyan Ren
  • Patent number: 8498330
    Abstract: Method and apparatus for providing a fast and accurate video coding process are disclosed. After checking the coding history of certain coded video frame units of a video, the order of the inter prediction and the intra prediction is adaptively exchanged for each coding video frame unit of an inter frame. Furthermore, the computations for coding modes in the latter part of the computation order are selectively skipped so as to speed up the coding process without degrading the video quality.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: July 30, 2013
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Yan Ho Kam, Wan Chi Siu, Yui Lam Chan, Wai Lam Hui, Wai Hong Wong, Ka Man Cheng, Yan Huo
  • Patent number: 8405491
    Abstract: A detection system (5) for assisting a driver when driving a vehicle, the system (5) comprising: a plurality of image capturing devices (98) mounted to the vehicle to capture images of the external environment of the vehicle; an image processing module (95) to identify potential hazards in real-time from the captured images and to superimpose information of the external environment relating to the identified potential hazards; and at least one display device (92) to display images processed by the image processing module in real-time; wherein the superimposed information is provided in an area of the display device (92) to ensure visual clarity of the images of the external environment.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: March 26, 2013
    Assignee: The Hong Kong Polytechnic University
    Inventors: Bernard Cheuk Mun Fong, Wan Chi Siu
  • Publication number: 20120281093
    Abstract: A detection system (5) for assisting a driver when driving a vehicle, the system (5) comprising: a plurality of image capturing devices (98) mounted to the vehicle to capture images of the external environment of the vehicle; an image processing module (95) to identify potential hazards in real-time from the captured images and to superimpose information of the external environment relating to the identified potential hazards; and at least one display device (92) to display images processed by the image processing module in real-time; wherein the superimposed information is provided in an area of the display device (92) to ensure visual clarity of the images of the external environment.
    Type: Application
    Filed: April 19, 2012
    Publication date: November 8, 2012
    Applicant: The Hong Kong Polytechnic University
    Inventors: Bernard Cheuk Mun Fong, Wan Chi Siu
  • Patent number: 8174375
    Abstract: A detection system (5) for assisting a driver when driving a vehicle, the system (5) comprising: a plurality of image capturing devices (98) mounted to the vehicle to capture images of the external environment of the vehicle; an image processing module (95) to identify potential hazards in real-time from the captured images and to superimpose information of the external environment relating to the identified potential hazards; and at least one display device (92) to display images processed by the image processing module in real-time; wherein the superimposed information is provided in an area of the display device (92) to ensure visual clarity of the images of the external environment.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: May 8, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Bernard Cheuk Mun Fong, Wan Chi Siu
  • Publication number: 20110090965
    Abstract: A digital video processing method implementable on an apparatus, comprising performing on a reconstructed digital video frame, by a processor, a transform 110, a quantization 121, a dequantization 122 and an inverse transform 123 to convert a digital video bitstream with hierarchical B frame structure into a digital video bitstream with a modified hierarchical B frame structure. Bidirectional frames are used as access points via synchronized independent frames to enable applications including single view access in multi-view coding videos and random accessing frames. Improved bitstream switching methods are also disclosed.
    Type: Application
    Filed: October 21, 2009
    Publication date: April 21, 2011
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Yui Lam CHAN, Changhong FU, Wan-Chi SIU, Wai Lam HUI, Ka Man CHENG, Yu LIU, Yan HUO
  • Publication number: 20100329341
    Abstract: Method and apparatus for providing a fast and accurate video coding process are disclosed. After checking the coding history of certain coded video frame units of a video, the order of the inter prediction and the intra prediction is adaptively exchanged for each coding video frame unit of an inter frame. Furthermore, the computations for coding modes in the latter part of the computation order are selectively skipped so as to speed up the coding process without degrading the video quality.
    Type: Application
    Filed: June 29, 2009
    Publication date: December 30, 2010
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Yan Ho KAM, Wan Chi SIU, Yui Lam CHAN, Wai Lam HUI, Wai Hong WONG, Ka Man CHENG, Yan HUO
  • Publication number: 20100328055
    Abstract: A detection system (5) for assisting a driver when driving a vehicle, the system (5) comprising: a plurality of image capturing devices (98) mounted to the vehicle to capture images of the external environment of the vehicle; an image processing module (95) to identify potential hazards in real-time from the captured images and to superimpose information of the external environment relating to the identified potential hazards; and at least one display device (92) to display images processed by the image processing module in real-time; wherein the superimposed information is provided in an area of the display device (92) to ensure visual clarity of the images of the external environment.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Applicant: The Hong Kong Polytechnic University
    Inventors: Bernard Cheuk Mun Fong, Wan Chi Siu