公开(公告)号：US11479369B2

公开(公告)日：2022-10-25

申请号：US16336750

申请日：2019-01-04

Applicant: Nuctech Company Limited

Inventor： Li Zhang ,  Zhiqiang Chen ,  Qingping Huang ,  Wenyuan Bi ,  Xin Jin ,  Ming Chang ,  Mingzhi Hong ,  Yancai Wang

IPC: B62B3/00 ,  G01N23/04 ,  B64F1/36 ,  B62B5/00

Abstract: A baggage cart is disclosed. The baggage cart is used for security inspection in an airport, comprising: a cart body, comprising at least one compartment having a door; and a locking device, coupled to the compartment and configured to lock the compartment in response to receiving an indication signal.

公开(公告)号：US09805504B2

公开(公告)日：2017-10-31

申请号：US14711949

申请日：2015-05-14

Applicant: Nuctech Company Limited

Inventor： Li Zhang ,  Zhiqiang Chen ,  Qingping Huang ,  Yunda Sun ,  Zhi Tang ,  Le Shen ,  Hu Tang ,  Qianlu Ren ,  Xin Jin

IPC: H05G1/64 ,  G06T17/00 ,  A61B6/03 ,  A61B6/00 ,  G06T19/00 ,  G06T11/00 ,  G01N23/04

CPC classification number: G06T17/00 ,  A61B6/032 ,  A61B6/463 ,  A61B6/466 ,  A61B6/5205 ,  A61B6/5223 ,  G01N23/046 ,  G06T11/003 ,  G06T19/003 ,  G06T2207/10081 ,  G06T2207/10124 ,  G06T2207/30004 ,  G06T2207/30196 ,  G06T2210/41 ,  G06T2211/436 ,  G06T2219/016 ,  G06T2219/028 ,  G06T2219/2004

Abstract: The present disclosure discloses an image display method in a CT system. The method comprises: implementing CT scanning on an inspected object, to obtain CT projection data; organizing the CT projection data according to a predetermined interval; extracting basic data from the organized CT projection data by using a fixed angle as a start angle and using 360 degrees as an interval; forming a DR image based on the extracted basic data; reconstructing a three-dimensional image of the inspected object from the CT projection data; and displaying the DR image and the reconstructed three-dimensional image on a screen at the same time. In the solution, the CT data is processed to obtain DR data. After the DR data is obtained, a DR image is obtained directly using a DR data processing algorithm. This enables an image recognizer to more accurately and more rapidly inspect goods carried by a passenger using the existing experience in image recognition of the DR image.

公开(公告)号：US10115182B2

公开(公告)日：2018-10-30

申请号：US15216332

申请日：2016-07-21

Applicant: Graduate School at Shenzhen, Tsinghua University

Inventor： Lei Zhang ,  Xiangyang Ji ,  Yangguang Li ,  Yongbing Zhang ,  Xin Jin ,  Haoqian Wang ,  Guijin Wang

IPC: H04N5/225 ,  H04N13/00 ,  G06T3/40 ,  H04N13/128 ,  H04N13/204 ,  G06T11/60 ,  H04N13/02

Abstract: The present invention discloses a depth map super-resolution processing method, including: firstly, respectively acquiring a first original image (S1) and a second original image (S2) and a low resolution depth map (d) of the first original image (S1); secondly, 1) dividing the low resolution depth map (d) into multiple depth image blocks; 2) respectively performing the following processing on the depth image blocks obtained in step 1); 21) performing super-resolution processing on a current block with multiple super-resolution processing methods, to obtain multiple high resolution depth image blocks; 22) obtaining new synthesized image blocks by using an image synthesis technology; 23) upon matching and judgment, determining an ultimate high resolution depth image block; and 3) integrating the high resolution depth image blocks of the depth image blocks into one image according to positions of the depth image blocks in the low resolution depth map (d). Through the depth map super-resolution processing method of the present invention, depth information of the obtained high resolution depth maps is more accurate.

公开(公告)号：US10482617B2

公开(公告)日：2019-11-19

申请号：US16212344

申请日：2018-12-06

Applicant: Graduate School at Shenzhen, Tsinghua University

Inventor： Xin Jin ,  Yanqin Chen ,  Qionghai Dai

IPC: G06T7/557 ,  H04N5/225 ,  G06T7/80

Abstract: A distance estimation method based on a handheld light field camera is disclosed and includes: S1: extracting parameters of the light field camera; S2: setting a reference plane and a calibration point; S3: refocusing a collected light field image on the reference plane, to obtain a distance between a main lens and a microlens array of the light field camera, and recording an imaging diameter of the calibration point on the refocused image; and S4: inputting the parameters of the light field camera, the distance between the main lens and the microlens array, and the imaging diameter of the calibration point on the refocused image to a light propagation mathematical model, and outputting a distance of the calibration point. The present application has high efficiency and relatively high accuracy.

公开(公告)号：US10346997B2

公开(公告)日：2019-07-09

申请号：US15809769

申请日：2017-11-10

Applicant: Graduate School at Shenzhen, Tsinghua University

Inventor： Xin Jin ,  Yatong Xu ,  Qionghai Dai

IPC: G06T7/557 ,  G06T7/571 ,  H04N5/225 ,  G06T1/00 ,  H04N5/222

Abstract: A depth estimation method based on light-field data distribution includes the following steps: S1. adjusting pixel distribution of input light-field images to generate a series of refocused light-field images having different focal lengths; S2. for a spatial point, corresponding to a macro-pixel, extracting intensity ranges for the macro-pixel from the refocused light-field images, and then selecting one refocused light-field image corresponding to a minimum intensity range, the focal length of the selected refocused light-field image being taken as a scene depth of the macro-pixel; the macro-pixel corresponding to one point in an actual scene, the intensity range of the macro-pixel being a variation range of intensity values of all points within the macro-pixel; and repeating the step S2 to obtain scene depths of all macro-pixels.

公开(公告)号：US20230088408A1

公开(公告)日：2023-03-23

申请号：US17908910

申请日：2021-03-02

Applicant: Keeson Technology Corporation Limited ,  Yangtze Delta Region Institute of Tsinghua University, Zhejiang

Inventor： Huafeng Shan ,  Kaimin Cao ,  Jiadong Wang ,  Hongwen Li ,  Xiuping Han ,  Xin Jin

IPC: G01L1/16 ,  A61B5/00

Abstract: A transduction unit of a non-contact human sleep physiological parameter detection sensor includes a circuit board, a piezoelectric film and conductive adhesives, wherein the piezoelectric film includes a film sheet and two electrodes, which are respectively arranged on two side faces of the film sheet; the piezoelectric film is attached to the circuit board; and the two electrodes of the piezoelectric film are respectively electrically connected to two exposed pad electrodes on the circuit board by means of the conductive adhesives.

公开(公告)号：US10349058B2

公开(公告)日：2019-07-09

申请号：US15660476

申请日：2017-07-26

Applicant: Graduate School at Shenzhen, Tsinghua University

Inventor： Xin Jin ,  Chenyang Li ,  Qionghai Dai

IPC: H04N13/194 ,  H04N13/271 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/597

Abstract: Disclosed is a method for predicting depth map coding distortion of a two-dimensional free viewpoint video, including: inputting sequences of texture maps and depth maps of two or more viewpoint stereoscopic videos; synthesizing a texture map of a first intermediate viewpoint of a current to-be-coded viewpoint and a first adjacent viewpoint, and synthesizing a texture map of a second intermediate viewpoint of the current to-be-coded viewpoint and a second adjacent viewpoint by using a view synthesis algorithm; recording a synthetic characteristic of each pixel according to the texture map and generating a distortion prediction weight; and calculating to obtain total distortion according to the synthetic characteristic and the distortion prediction weight.