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公开(公告)号：US20180352177A1
公开(公告)日：2018-12-06
申请号：US15757933
申请日：2016-09-08
发明人： Yuichiro KOMIYA , Muneaki YAMAGUCHI
摘要： An image-processing device for performing correction processing and event detection adaptively to the effect of a disturbance that an input image has received is disclosed. The device has a disturbance detection unit, an image correction unit, and an event detection unit. The disturbance detection unit analyzes an input image, detects the effects of a plurality of disturbances that the input image has received, and outputs the detected effects as disturbance information. The image correction unit applies correction processing to an input video in accordance with the disturbance information, and outputs a corrected image and correction information indicating the actually applied correction. The disturbance detection unit estimates the degree of the plurality of disturbances residual in the corrected image from the disturbance information and the correction information, and detects a specific event using a detection process selected in accordance with the degree of disturbances. The plurality of disturbances are three that includes, for example, a mist, heat haze, and noise.
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公开(公告)号：US12047554B2
公开(公告)日：2024-07-23
申请号：US17932169
申请日：2020-03-24
发明人： Keita Nakayama
CPC分类号： H04N17/002 , B61L15/0081 , B61L15/009 , G06T7/0002 , H04N7/183 , G06T2207/30168 , G06T2207/30232 , G06T2207/30252
摘要： A monitoring system is provided and includes a camera attached to a train car that takes an image of the vicinity of a door of the car, where a monitor displays a camera image taken by the camera and a dirt detection unit executes a dirt detection process for detecting dirt on the front glass of the camera. This configuration thereby allows the dirt detection unit to determine the execution timing for a dirt detection process on the basis of the train information that indicates the operational state of the train to execute the dirt detection process by using the camera image that has been obtained according to the execution timing.
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公开(公告)号：US20230386188A1
公开(公告)日：2023-11-30
申请号：US18449730
申请日：2023-08-15
发明人： Keigo HASEGAWA
IPC分类号： G06V10/778 , G06V10/776 , G06V10/774
CPC分类号： G06V10/778 , G06V10/776 , G06V10/774
摘要： An image analysis system and update method for a machine-learning model are to update a model in operation 111 to a retrained model 121, wherein in an image analysis server 1 which analyzes shot images, a first inference unit 11 performs inference using the trained model in operation 111, a relearning unit 14 performs relearning to generate a retrained model, a second inference unit 12 performs inference using a retrained model 121, and a comparison unit 15 compares the execution results of the first inference unit 11 and the second inference unit 12 to determine whether or not to update the model in operation 111 to the retrained model 121.
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公开(公告)号：US20220329728A1
公开(公告)日：2022-10-13
申请号：US17642563
申请日：2019-09-24
发明人： Hirotake USAMI
摘要： The invention performs a processing for improving an image quality of a camera in a state where a sufficient link rate cannot be ensured. A controlling method for a camera includes an imaging sensor configured to acquire an imaging data, a signal processing unit configured to perform an image processing on the imaging data, a buffer into which data subjected to the image processing is written, and a format conversion unit configured to convert a format of data read from the buffer and transmit the data to a transmission path, wherein the controlling method includes a status prediction step of predicting a status of the buffer based on a readout rate of the imaging sensor and a link rate of the transmission path and generating a status prediction information, and an adjustment step of adjusting a content of the image processing according to the status prediction information.
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公开(公告)号：US20220322950A1
公开(公告)日：2022-10-13
申请号：US17638798
申请日：2019-09-05
发明人： Keigo HASEGAWA
摘要： Provided is a method for estimating a pulse rate with high accuracy in the case that short-term burst noise is mixed in an estimation interval. Included are a pulse wave signal generating step of generating a pulse wave signal from an image of a pulse rate estimation target; a peak component suppression step of limiting an amplitude value of the pulse wave signal that is larger than a first threshold value to the first threshold value, and outputting a pulse wave analysis signal; and a frequency analysis step of outputting a frequency spectrum of the pulse wave analysis signal.
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公开(公告)号：US20220321839A1
公开(公告)日：2022-10-06
申请号：US17634005
申请日：2019-08-22
发明人： Hironori NAOI , Satoshi MASUDA , Tetsuya ITO
摘要： A train monitoring system in the present embodiment is provided with a compartment camera 10 that takes an image of the inside of a compartment of the train, a processing server 30 that calculates a vacancy probability for each reserved seat on the basis of the image taken by the compartment camera 10 while the train is running and detects a resale candidate seat by comparing the vacancy probability with a threshold value, and a touch panel monitor 40 that displays resale candidate seat information indicating the resale candidate seat that has been detected by the processing server 30.
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公开(公告)号：US20220216942A1
公开(公告)日：2022-07-07
申请号：US17610287
申请日：2020-04-16
发明人： Tatsuhiro NAKADA
摘要： [Problem] To propose a technology capable of appropriately demodulating, in a receiving device, a plurality of pieces of data multiplexed through the quasi-synchronous LDM method. [Solution] A transmission device generates a UL modulated signal by using an IFFT process of NUL points, generates an LL modulated signal by using an IFFT process of NLL points different from the NUL points, and transmits signals obtained by timing-adjusting the modulated signals such that the start timings thereof coincide with each other in a predetermined cycle, and combining the timing-adjusted signals at a predetermined power ratio. In addition, the receiving device performs an NUL point FFT process on the reception signal from the transmitting device, reproduces UL and generates UL reception replica, on the basis of the result, and performs an NLL point FFT process on a signal obtained by subtracting the UL reception replica from the reception signal, and reproduces LL on the basis of the result.
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公开(公告)号：US20220089205A1
公开(公告)日：2022-03-24
申请号：US17434233
申请日：2019-12-10
发明人： Yohei YAMAMOTO
摘要： There is provided a train monitoring system using a train monitoring device that is mounted on a train and uses a plurality of cameras for imaging around the train from different sides. The train monitoring device includes a control unit that is configured to, when the train stops at a station, select one of the plurality of cameras as a rear imaging camera for imaging a rear side in a traveling direction of the train, after the train departs from the station, acquire image data imaged by the rear imaging camera, and transmit the image data to the outside.
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公开(公告)号：US11271784B2
公开(公告)日：2022-03-08
申请号：US16957145
申请日：2018-02-19
发明人： Kei Ito
摘要： A wireless communication device includes frequency hopping means for changing a radio frequency based on a temporarily defined pattern, and a frequency offset compensation unit. The frequency offset compensation unit includes a frequency offset calculator that calculates a frequency offset amount from a received signal, a hopping frequency value converter that uses the frequency offset amount, a radio frequency from which the frequency offset amount is calculated, and a transition destination radio frequency transitioned by the frequency hopping means to calculate an estimated frequency offset value for the transition destination radio frequency, and a rotator that uses the estimated frequency offset value for the transition destination radio frequency to perform phase rotation on the received signal.
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公开(公告)号：US20220038647A1
公开(公告)日：2022-02-03
申请号：US17276721
申请日：2019-08-23
发明人： Takuhiro SHIBUYA
摘要： An imaging device includes an optical system, a plurality of imaging elements, an imaging unit, a comparison unit, and a correction unit. The optical system is configured to disperse light of a subject image. The imaging elements are configured to capture subject images dispersed by the optical system using a rolling shutter method. The imaging unit is configured to shift a slit range, which is between a front curtain and a rear curtain of the rolling shutter method, by at least one line in a sub-scanning direction between the plurality of imaging elements. The comparison unit is configured to calculate a level difference in units of lines between image signals output by the plurality of imaging elements by comparing signal levels of the image signals, and the correction unit configured to correct influence of a flash band on the image signals on the basis of the level difference.
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