Patents by Inventor Wang Miao

Wang Miao 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: 20220049701
    Abstract: The present disclosure relates to an air conditioner and a compressor. The compressor includes: a first cylinder assembly, including a first cylinder body and a first sliding vane, a volume control assembly, including a pressure regulator; wherein the pressure regulator is provided with a storage cavity, and the storage cavity is communicated with the variable volume control cavity; wherein the first sliding vane is configured to slide in a reciprocating manner between the first compression cavity and the variable volume control cavity along the first sliding vane groove, to change the volume of the variable volume control cavity; and the refrigerant introduced into the variable volume control cavity flows between the variable volume control cavity and the storage cavity along with a change of the volume of the variable volume control cavity.
    Type: Application
    Filed: October 31, 2019
    Publication date: February 17, 2022
    Applicant: GREE GREEN REFRIGERATION TECHNOLOGY CENTER CO., LTD. OF ZHUHAI
    Inventors: Yanjun HU, Peizhen QUE, Liu XIANG, Yuanbin ZHAI, Wang MIAO
  • Patent number: 11240477
    Abstract: The present invention provides a method and a device for image rectification, which are applied in the field of image processing. The method includes: receiving two images, the two images are images of a target object captured from different viewpoints; performing an epipolar rectification on the two images; rectifying the two images after the epipolar rectification based on the image contents; and splicing the two images after the rectification based on the image contents. The method can rectify the images captured from different viewpoints, thereby ensuring the pixel alignment, and avoiding visual discomfort to the viewer.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 1, 2022
    Assignee: ArcSoft Corporation Limited
    Inventors: Wang Miao, Li Yu, Xin Fan
  • Patent number: 11205281
    Abstract: The present invention provides a method and a device for image rectification, which is applied to the field of image processing. The method includes: receiving two images, wherein the two images are images of a target object captured at different viewpoints, and an image capturing device configured to capture the two images, includes a first image capturing device and a second image capturing device; determining positions of corresponding feature point pairs in the two images; and aligning the two images according to the positions of the feature point pairs and parameters of the first image capturing device and the second image capturing device. The above-mentioned method can rectify the images captured at different viewpoints, thereby ensuring the alignment of pixels, and avoiding visual discomfort of the viewer.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: December 21, 2021
    Assignee: ArcSoft Corporation Limited
    Inventors: Li Yu, Wang Miao, Xin Fan
  • Patent number: 10924729
    Abstract: The present invention provides a method and a device for calibration applied to the field of image processing. The method includes: acquiring a common two-dimensional image and an infrared image of a calibration object, wherein the calibration object carries a first pattern; calculating coordinates of the first pattern in the common two-dimensional image, acquiring coordinates of the first pattern in a global coordinate system, and calculating intrinsic parameters of a first camera device capturing the common two-dimensional image; and calculating coordinates of the first pattern in the infrared image, acquiring the coordinates of the first pattern in the global coordinate system, and calculating intrinsic parameters of a second camera device capturing the infrared image. The method for calibration is capable of enhancing calibration efficiency by a simple calibration method when calibrating a depth camera device.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: February 16, 2021
    Assignee: ArcSoft Corporation Limited
    Inventors: Li Yu, Menghan Liu, Wang Miao
  • Patent number: 10872439
    Abstract: The present invention provides a method and a device for verification applied to the field of image processing. The method includes: acquiring a common two-dimensional image, an infrared image and a depth map of a calibration object, wherein the calibration object carries a first pattern; calculating coordinates of an image formed on the infrared image by the first pattern, acquiring a depth value of the first pattern according to the depth map, and calculating a position of a projection formed on the common two-dimensional image by a three-dimensional point cloud corresponding to the image formed on the infrared image by the first pattern, and calculating a distance between an image and the projection formed on the common two-dimensional image by the first pattern. The method and device for verification provided by the present invention can verify a calibration parameter obtained after calibration performed by a depth camera device, enhancing calibration accuracy.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: December 22, 2020
    Assignee: ArcSoft Corporation Limited
    Inventors: Li Yu, Menghan Liu, Wang Miao
  • Publication number: 20200291948
    Abstract: A compressor and an air conditioner are provided. The compressor includes a main shaft, a first cylinder and a second cylinder. The main shaft sequentially passes through the first cylinder and the second cylinder and can rotate therein, to compress refrigerant entering the first cylinder and the second cylinder. The second cylinder has an inner cavity capable of receiving the main shaft. A volume variation control cavity in communication with the inner cavity is provided in a side wall of the inner cavity, and a sliding vane is provided inside the volume variation control cavity. The volume variation control cavity can be selectively connected to a gas inlet and a gas outlet of the compressor, to change gas pressure in the volume variation control cavity, and drive the sliding vane to abut against or be separated from the main shaft by the gas pressure in the volume variation control cavity.
    Type: Application
    Filed: May 30, 2018
    Publication date: September 17, 2020
    Inventors: Yanjun HU, Hui HUANG, Yusheng HU, Huijun WEI, Ouxiang YANG, Peizhen QUE, Yuanbin ZHAI, Liu XIANG, Wang MIAO
  • Patent number: 10425638
    Abstract: The present invention is to provide an image processing equipment and method, for enabling an electronic device having a plurality of image capturing elements installed thereon to capture calibration sample images of a parameter calibration module and verification sample images of a parameter verification module, wherein the parameter calibration module is formed by four calibration identification boards each having a chess board pattern printed thereon and arranged parallelly in a predetermined angle with each other, the parameter verification module is formed by four verification identification boards each having a chess board pattern printed thereon and arranged in parallel with each other, so as for the electronic device to promptly calibrate the intrinsic and extrinsic parameters of the mage capturing elements according to the calibration sample images and then to promptly verify the correctness of the calibrated intrinsic and extrinsic parameters according to the verification sample images.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: September 24, 2019
    Assignee: MULTIMEDIA IMAGE SOLUTION LIMITED
    Inventors: Li Yu, Wang Miao, Jian-Hua Lin, Jin Wang
  • Publication number: 20190149798
    Abstract: The present invention provides a method and a device for image rectification, which are applied in the field of image processing. The method includes: receiving two images, the two images are images of a target object captured from different viewpoints; performing an epipolar rectification on the two images; rectifying the two images after the epipolar rectification based on the image contents; and splicing the two images after the rectification based on the image contents. The method can rectify the images captured from different viewpoints, thereby ensuring the pixel alignment, and avoiding visual discomfort to the viewer.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 16, 2019
    Applicant: ArcSoft (Hangzhou) Multimedia Technology Co., Ltd.
    Inventors: Wang MIAO, Li YU, Xin FAN
  • Publication number: 20190147616
    Abstract: The present invention provides a method and a device for image rectification, which is applied to the field of image processing. The method includes: receiving two images, wherein the two images are images of a target object captured at different viewpoints, and an image capturing device configured to capture the two images, includes a first image capturing device and a second image capturing device; determining positions of corresponding feature point pairs in the two images; and aligning the two images according to the positions of the feature point pairs and parameters of the first image capturing device and the second image capturing device. The above-mentioned method can rectify the images captured at different viewpoints, thereby ensuring the alignment of pixels, and avoiding visual discomfort of the viewer.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 16, 2019
    Applicant: ArcSoft (Hangzhou) Multimedia Technology Co., Ltd.
    Inventors: Li YU, Wang MIAO, Xin FAN
  • Publication number: 20190130605
    Abstract: The present invention provides a method and a device for verification applied to the field of image processing. The method includes: acquiring a common two-dimensional image, an infrared image and a depth map of a calibration object, wherein the calibration object carries a first pattern; calculating coordinates of an image formed on the infrared image by the first pattern, acquiring a depth value of the first pattern according to the depth map, and calculating a position of a projection formed on the common two-dimensional image by a three-dimensional point cloud corresponding to the image formed on the infrared image by the first pattern, and calculating a distance between an image and the projection formed on the common two-dimensional image by the first pattern. The method and device for verification provided by the present invention can verify a calibration parameter obtained after calibration performed by a depth camera device, enhancing calibration accuracy.
    Type: Application
    Filed: October 31, 2018
    Publication date: May 2, 2019
    Inventors: Li Yu, Menghan Liu, Wang Miao
  • Publication number: 20190132584
    Abstract: The present invention provides a method and a device for calibration applied to the field of image processing. The method includes: acquiring a common two-dimensional image and an infrared image of a calibration object, wherein the calibration object carries a first pattern; calculating coordinates of the first pattern in the common two-dimensional image, acquiring coordinates of the first pattern in a global coordinate system, and calculating intrinsic parameters of a first camera device capturing the common two-dimensional image; and calculating coordinates of the first pattern in the infrared image, acquiring the coordinates of the first pattern in the global coordinate system, and calculating intrinsic parameters of a second camera device capturing the infrared image. The method for calibration is capable of enhancing calibration efficiency by a simple calibration method when calibrating a depth camera device.
    Type: Application
    Filed: October 31, 2018
    Publication date: May 2, 2019
    Inventors: Li Yu, Menghan Liu, Wang Miao
  • Publication number: 20180213217
    Abstract: The present invention is to provide an image processing equipment and method, for enabling an electronic device having a plurality of image capturing elements installed thereon to capture calibration sample images of a parameter calibration module and verification sample images of a parameter verification module, wherein the parameter calibration module is formed by four calibration identification boards each having a chess board pattern printed thereon and arranged parallelly in a predetermined angle with each other, the parameter verification module is formed by four verification identification boards each having a chess board pattern printed thereon and arranged in parallel with each other, so as for the electronic device to promptly calibrate the intrinsic and extrinsic parameters of the mage capturing elements according to the calibration sample images and then to promptly verify the correctness of the calibrated intrinsic and extrinsic parameters according to the verification sample images.
    Type: Application
    Filed: January 23, 2017
    Publication date: July 26, 2018
    Applicant: MULTIMEDIA IMAGE SOLUTION LIMITED
    Inventors: Li YU, Wang MIAO, Jian-Hua LIN, Jin WANG
  • Publication number: 20180213218
    Abstract: The present invention is to provide an image processing equipment and method, for enabling an electronic device having a plurality of image capturing elements installed thereon to capture calibration sample images of a parameter calibration module and verification sample images of a parameter verification module, wherein the parameter calibration module is formed by four calibration identification boards each having a chess board pattern printed thereon and arranged parallelly in a predetermined angle with each other, the parameter verification module is formed by four verification identification boards each having a chess board pattern printed thereon and arranged in parallel with each other, so as for the electronic device to promptly calibrate the intrinsic and extrinsic parameters of the mage capturing elements according to the calibration sample images and then to promptly verify the correctness of the calibrated intrinsic and extrinsic parameters according to the verification sample images.
    Type: Application
    Filed: November 2, 2017
    Publication date: July 26, 2018
    Inventors: Li YU, Wang MIAO, Jian-Hua LIN, Jin WANG
  • Patent number: 8032193
    Abstract: A device with a base housing part and two slidably suspended cover parts that can move in opposite directions between a retracted position in which they substantially abut one another and conceal an operating face and an extended position in which they do not conceal the operating face. At least one of the covers can also assume an intermediate position between the retracted position and the extended position in which in which a portion of the operating face is not concealed.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: October 4, 2011
    Assignee: Nokia Corporation
    Inventors: Liu Xin, Liu Jikun, Wang Miao, Liu Ying
  • Publication number: 20100016041
    Abstract: A device with a base housing part and two slidably suspended cover parts that can move in opposite directions between a retracted position in which they substantially abut one another and conceal an operating face and an extended position in which they do not conceal the operating face. At least one of the covers can also assume an intermediate position between the retracted position and the extended position in which in which a portion of the operating face is not concealed.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 21, 2010
    Applicant: NOKIA CORPORATION
    Inventors: Liu Ying, Liu Jikun, Wang Miao, Liu Xin