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91. 发明申请

US20220116584A1 Systems and Methods for Improved Camera Color Calibration 有权
公开(公告)号：US20220116584A1
公开(公告)日：2022-04-14
申请号：US17070038
申请日：2020-10-14
申请人： Argo Al, LLC
发明人： Christopher N. St. John , Koji L. Gardiner , Ravi Babu Basavaraj , Bowei Zhang
IPC分类号： H04N17/00 , G06T7/80 , H04N17/02 , H04N1/60
摘要： Systems, methods, and computer-readable media are disclosed for improved camera color calibration. An example method may involve capturing a first wavelength emitted by a first type of traffic light. The example method may also involve determining, based on the first wavelength, a first color value associated with the wavelength emitted by the first type of traffic light. The example method may also involve capturing, by a first camera, a first image, video, or real-time feed of a first portion of a test target, the first portion of the test target including a first light color that is based on the first color value. The example method may also involve determining, based on the first image, video, or real-time feed of the first portion of a test target, a second color value output by the camera. The example method may also involve determining, based on a comparison between the first color value and the second color value, that a difference exists between the first color value and the second color value. The example method may also involve adjusting, based on the detection that a difference exists between the first color value and the second color value, at least one of: a property of the camera or signal processing associated with the camera.

92. 发明授权

US11303960B2 Methods and apparatus to count people 有权
公开(公告)号：US11303960B2
公开(公告)日：2022-04-12
申请号：US17087335
申请日：2020-11-02
申请人： The Nielsen Company (US), LLC
发明人： Padmanabhan Soundararajan , Marko Usaj , Venugopal Srinivasan
IPC分类号： H04N21/442 , G06K9/00 , H04N3/09 , H04N21/433 , G06F16/583 , H04H60/45 , H04N21/258 , H04N21/4223 , H04N21/44 , H04N21/658 , H04N9/24 , H04N5/93 , H04N7/12 , H04N5/76 , H04N7/18 , H04H60/33 , H04N5/91 , H04N5/33 , G02B26/10 , G01B3/20 , G04F3/06 , G06K7/06 , H04N17/00 , G01B3/00 , G01C11/02 , H04N9/87 , G01B5/30 , G02B27/00 , G06T7/11 , G09B5/02
摘要： Methods and apparatus to count people are disclosed. Example apparatus disclosed herein include means for discarding existing characteristic datasets from a list; means for populating the list with first characteristic datasets obtained from a first plurality of images representative of an environment during a first period of time of a media presentation; means for limiting a number of the first characteristic datasets stored in the list for a first location represented in the first plurality of images; and means for comparing the first characteristic datasets to each other to determine a first number of unique faces in the environment during the first period of time, wherein the means for discarding is to delete the first characteristic datasets from the list, and the means for populating is to re-populate the list with second characteristic datasets obtained from a second plurality of images representative of the environment.

93. 发明申请

US20220103806A1 RESONANT TESTING SYSTEM AND RESONANT TESTING METHOD 有权
公开(公告)号：US20220103806A1
公开(公告)日：2022-03-31
申请号：US17446615
申请日：2021-08-31
申请人： AmTRAN Technology Co., Ltd.
发明人： Yu-Ruei LI
IPC分类号： H04N17/00 , H04N5/38 , H04R1/40 , H04R3/00 , G06F3/16 , H04R5/04 , G06F3/14
摘要： A resonant testing system for testing a device under test, including a processing circuit, a microphone array and a camera is disclosed. The processing circuit generates a scanning frequency signal and transmits the scanning frequency signal to the device under test, which plays sound based on the scanning frequency signal. The microphone array includes several microphones, each of the microphones receives the sound played by the device under test, and the microphone array outputs several audio signals corresponding to the microphones. The camera captures a real time image signal of the device under test, and transmits the real time image signal to the processing circuit. The processing circuit computes resonant positions and resonant levels according to the audio signals, and combines the resonant positions, the resonant levels and the real time image signal to generate a real time resonant result. A resonance testing method is disclosed.

94. 发明授权

US11290708B2 Estimating real-time delay of a video data stream 有权
公开(公告)号：US11290708B2
公开(公告)日：2022-03-29
申请号：US17420766
申请日：2019-11-18
申请人： Edgy Bees Ltd.
发明人： Menashe Haskin , Nitay Megides , Amir Leibman , Ishay Peled
IPC分类号： H04N17/00 , H04N17/02 , H04N5/265 , H04N5/04
摘要： In an arrangement where a physical phenomenon affects a digital video camera and is measured or sensed by a sensor, a delay of a digital video stream from the digital video camera is estimated. The digital video stream is processed by a video processor for producing a signal that represents the changing over time of the effect of the physical phenomenon on the digital video camera. The signal is then compared with the sensor output signal, such as by using cross-correlation or cross-convolution, for estimating the time delay between the compared signals. The estimated time delay may be used for synchronizing when combining additional varied data to the digital video stream for low-error time alignment. The physical phenomenon may be based on mechanical position or motion, such as pitch, yaw, or roll. The time delay estimating may be performed once, upon user control, periodically, or continuously.

95. 发明申请

US20220094819A1 IMAGE GENERATION METHOD, IMAGING APPARATUS, AND RECORDING MEDIUM 有权
公开(公告)号：US20220094819A1
公开(公告)日：2022-03-24
申请号：US17420021
申请日：2019-12-04
申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
发明人： Shougo SASAKI , Tadayuki INOUE , Shuji YANO
IPC分类号： H04N5/217 , H04N17/00 , H04N5/232
摘要： An image generation method in an imaging apparatus that includes a plurality of pixels, includes: performing a first imaging operation of capturing an image when each of the plurality of pixels is shielded from light, in a state in which a reference signal level in the first imaging operation is set to a first offset value; and generating first image data based on a first pixel signal obtained by the first imaging operation. The first offset value is higher than a second offset value that is a reference signal level in a second imaging operation of capturing an image in a state in which light is incident on each of the plurality of pixels.

96. 发明申请

US20220092819A1 METHOD AND SYSTEM FOR CALIBRATING EXTRINSIC PARAMETERS BETWEEN DEPTH CAMERA AND VISIBLE LIGHT CAMERA 有权
公开(公告)号：US20220092819A1
公开(公告)日：2022-03-24
申请号：US17144303
申请日：2021-01-08
申请人： Xidian University
发明人： Guang JIANG , Zixuan BAI , Ailing XU , Jing JIA
IPC分类号： G06T7/80 , H04N17/00 , H04N5/247 , G06T7/50 , G06T7/11
摘要： A method and system for calibrating extrinsic parameters between a depth camera and a visible light camera. Acquiring depth images and visible light images of the checkerboard plane in different transformation poses; determining visible light checkerboard planes of different transformation poses in a coordinate system of the visible light camera and depth checkerboard planes of different transformation poses in a coordinate system of the depth camera; determining a rotation matrix from the coordinate system of the depth camera to the coordinate system of the visible light camera; determining a translation vector from the coordinate system of the depth camera to the coordinate system of the visible light camera; rotating and translating the coordinate system of the depth camera, so that the coordinate system of the depth camera coincides with the coordinate system of the visible light camera to complete the extrinsic calibration of the dual cameras.

97. 发明申请

US20220070417A1 CONTENT ADAPTIVE LENS SHADING CORRECTION METHOD AND APPARATUS 有权
公开(公告)号：US20220070417A1
公开(公告)日：2022-03-03
申请号：US17022721
申请日：2020-09-16
申请人： JinYun Pan
发明人： JinYun Pan
IPC分类号： H04N9/04 , H04N9/64 , H04N5/243 , H04N9/77 , H04N17/00
摘要： Methods and apparatus for providing adaptive lens shading correction in at least a portion of a shaded image frame perform luminance lens shading correction for a portion of the shaded image frame and detect a color flat area in the shaded image. The methods and apparatus generate a frequency-based color shading profile that includes color shading parameters including an amplitude parameter and phase parameter corresponding to hue distributions from experimental shading data and generate an unshaded image by performing color shading correction on the detected color flat areas of the shaded image frame using the color shading parameters.

98. 发明申请

US20220067971A1 Assembly and Measurement of an Assembly for Calibrating a Camera 有权
公开(公告)号：US20220067971A1
公开(公告)日：2022-03-03
申请号：US17299091
申请日：2019-12-16
申请人： Conti Temic microelectronic GmbH
发明人： Marko ALEXOVSKI , Ivan FRANZ , Aless LASARUK
IPC分类号： G06T7/80 , H04N17/00 , G06T7/70
摘要： The invention relates to an assembly for calibrating a camera (31) to be calibrated, said assembly comprising: a first positioning base (43) for accommodating a reference camera adapter (40) or for accommodating an adapter (34) for the camera (31) to be calibrated; an auxiliary target (21); the reference camera adapter (40) for accommodating a reference camera housing (11) or the auxiliary target (21); the adapter (34) for accommodating the camera (31) to be calibrated; a second positioning base (41) for accommodating the reference camera housing (11); at least one calibration target (51, 52, 53) arranged such that it can be captured by the reference camera (11) accommodated by the first positioning base (43) or can be captured by the camera (31) to be calibrated; and the reference camera housing (11) for accommodating the reference camera (12, 13); wherein the first positioning base (43) is arranged (position 54) such that a first image captured by the reference camera (12, 13) accommodated in the first positioning base (43) contains the at least one calibration target (51, 52, 53), and wherein the second positioning base (41) is arranged (position 55 or position 56) such that a second image captured by the reference camera (12, 13) accommodated in the second positioning base (41) contains the at least one calibration target (51, 52, 53) and the auxiliary target (21) accommodated in the first positioning base (43).

99. 发明授权

US11265493B2 Imaging sensor, imaging system, and moving body 有权
公开(公告)号：US11265493B2
公开(公告)日：2022-03-01
申请号：US16893259
申请日：2020-06-04
申请人： CANON KABUSHIKI KAISHA
发明人： Yoichi Wada
IPC分类号： H04N5/369 , H04N17/00 , G06T7/55 , H01L27/146 , H04N5/365 , H04N5/367 , B60W30/09
摘要： A third line that supplies a first potential to a first semiconductor region of a first detection pixel and a fourth line that supplies a second potential to the first semiconductor region of a second detection pixel are provided. An interval between a partial line of the third line and a partial line of the fourth line is longer than an interval between a partial line of a first line and a partial line of a second line which extend along the partial line of the third line and the partial line of the fourth line.

100. 发明申请

US20220058829A1 INTRA-OPERATIVE DETERMINATION OF A FOCAL LENGTH OF A CAMERA FOR MEDICAL APPLICATIONS 有权
公开(公告)号：US20220058829A1
公开(公告)日：2022-02-24
申请号：US17275052
申请日：2019-09-11
申请人： Brainlab AG
发明人： Sebastian STOPP , Johannes ZÜGNER , Johannes MANUS , José GARDIAZABAL
IPC分类号： G06T7/80 , H04N17/00 , G06T7/246 , H04N5/232 , A61B90/00 , A61B34/20 , A61B34/00
摘要： A method of determining a focal length of a camera and/or of adjusting a viewing direction in a graphical representation of a pre-operative image is provided. The method includes providing uncalibrated camera data of a camera, specifying an initial value of a focal length of the camera, specifying a working distance value of a distance between the camera and the at least part of the tracking system, calculating a distance value of the distance between the camera and the at least part of the tracking system based on the uncalibrated camera data and based on the specified initial value of the focal length of the camera, calculating a change factor based on the specified working distance value and the calculated distance value, and calculating an adapted value of the focal length of the camera based on the initial value of the focal length and based on the change factor.

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