公开(公告)号：US20220191575A1

公开(公告)日：2022-06-16

申请号：US17439799

申请日：2020-03-30

申请人： Byung Chul MOON

发明人： Byung Chul MOON

IPC分类号： H04N21/422 ,  H04N21/442 ,  H04N21/485 ,  H04N5/58 ,  H04N21/41

摘要： A TV control system includes: a TV control device which generates a viewing distance detection value and an illumination level detection value, inputs a setting value transmitted from the smart phone, and transmits a human body distance detection value, the illumination level detection value, the setting value, and a control signal to the smart TV; the smart TV which receives the viewing distance detection value, the illumination level detection value, and the setting value transmitted from the TV control device, and changes a distance and time setting value in response to the control signal; the smart phone which generates a control signal for changing distance information and a control signal for changing time setting and transmits the control signals to the TV control device; and a router which is connected to the smart phone and the TV control device through a communication network.

公开(公告)号：US20220121292A1

公开(公告)日：2022-04-21

申请号：US17565373

申请日：2021-12-29

申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

发明人： Yihong Lin

IPC分类号： G06F3/01 ,  H04N5/232 ,  H04N5/58 ,  G06V40/20 ,  G02B27/01

摘要： Provided are a control method, a control device, an electronic device (100), and a storage medium. The control method for the electronic device (100) including a camera includes: (010) detecting whether there is an external object within a predetermined range of the camera; (020) activating the camera to obtain an image of the external object when there is an external object within the predetermined range of the camera; and (030) identifying an action gesture of the external object based on the image of the external object.

公开(公告)号：US20220109804A1

公开(公告)日：2022-04-07

申请号：US17552136

申请日：2021-12-15

申请人： Google LLC

发明人： Sami Kalliomaki ,  Niklas Blum ,  Stefan Ekerfelt ,  Peter Hanspers ,  Magnus Jedvert

IPC分类号： H04N5/58 ,  G06T5/00 ,  G06T5/40 ,  H04N5/235 ,  G06T5/50

摘要： A method enhances brightness in video frames of a video during streams. The method includes determining, by a processor, that a first video frame has low light. The method further includes applying, by the processor, a linear correction to provide a first brightness enhancement in the first video frame that modifies a first brightness of a predetermined darkest percentage of pixels to be less than a darkness threshold value or a second brightness of a predetermined lightest percentage of the pixels to be greater than a lightness threshold value. The method further includes averaging, by the processor, the first brightness enhancement of the first video frame with a set of brightness enhancements corresponding to previous video frames to generate a modified video.

公开(公告)号：US11122235B2

公开(公告)日：2021-09-14

申请号：US15541222

申请日：2015-12-03

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Won-hee Choe ,  Min-woo Lee

IPC分类号： H04N5/58 ,  G09G5/00 ,  H04N5/14

摘要： A display device is provided. The display device includes a display configured to display at least one of an image and a text; a sensing unit configured to sense ambient illuminance; and a processor configured to gradually increase an output luminance value of the display, if a specific condition is satisfied based on the ambient illuminance sensed by the sensing unit and display attributes.

公开(公告)号：US11122212B2

公开(公告)日：2021-09-14

申请号：US16598432

申请日：2019-10-10

申请人： Scholly Fiberoptic GmbH

发明人： Joachim Jauss

IPC分类号： H04N5/235 ,  H04N5/58

摘要： An image recording method (2) and an image recording apparatus (1) are provided for recording a sequence of individual images of a scene (3), wherein, in a first control loop (6), an exposure parameter (8) is set in dependence on a respective brightness value (21) of an individual image, wherein the scene (3) is illuminated using an illumination device (4), wherein, in a second control loop (7), a maximum value (10) of a control range (9) of the exposure parameter (8) in the first control loop (6) is set, wherein the setting of the maximum value (10) is effected in dependence on an exposure variable (11), which indirectly stands for an expected quantity of light incident on an image sensor.

公开(公告)号：US10923049B2

公开(公告)日：2021-02-16

申请号：US16321850

申请日：2017-09-04

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Hirokazu Nakanishi ,  Takashi Higashida

IPC分类号： G09G3/34 ,  G09G5/10 ,  H04N5/232 ,  H04N5/57 ,  H04N5/58 ,  G09G3/20 ,  H04N5/20

摘要： A display device is a display device having a display that displays an image based on a received image signal. This display device includes: a memory that stores maximum luminance information regarding maximum luminance that the display can display; a determiner that determines whether the image signal is an HDR image signal specified by relative luminance; a first converter that, when the determiner determines that the image signal is the HDR image signal specified by the relative luminance, subjects luminance information obtained from the image signal to nonlinear conversion based on a luminance characteristic of the display; and a second converter that converts the luminance information that has been subjected to the nonlinear conversion by the first converter such that the display displays an image at increased luminance within a luminance range determined in accordance with the maximum luminance information.

公开(公告)号：US20200169691A1

公开(公告)日：2020-05-28

申请号：US16695886

申请日：2019-11-26

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Se-Yoon JEONG ,  Min Hyuk KIM ,  Shinyoung YI ,  Jung-Won KANG ,  Hui-Yong KIM ,  Hakyeong KIM

IPC分类号： H04N7/00 ,  H04N5/58

摘要： Disclosed herein are a method and apparatus for luminance-adaptive opto-electrical transfer and luminance-adaptive electro-optical transfer. For video transmission and compression, opto-electrical transfer and electro-optical transfer are required. The surround luminance and luminance range of an image are taken into consideration when performing opto-electrical transfer and electro-optical transfer. An opto-electrical transfer function may be derived based on a contrast sensitivity function that takes into consideration the surround luminance of an image. Also, parameters relevant to surround luminance may be signaled from an encoding apparatus to a decoding apparatus, and an electro-optical transfer function may be derived based on the parameters.

公开(公告)号：US20200169689A1

公开(公告)日：2020-05-28

申请号：US16671523

申请日：2019-11-01

申请人： HONDA MOTOR CO., LTD.

发明人： Mutsuki HIROOKA ,  Kenta TAKENAKA

IPC分类号： H04N5/58 ,  G07C5/08 ,  B60R1/00 ,  H04N5/247 ,  H04N5/235

摘要： An onboard apparatus provided in a vehicle with an automatic transmission, includes a peripheral image display unit configured to capture a periphery of the vehicle and display a captured image, an acquisition unit configured to acquire information concerning brightness on the periphery of the vehicle, and a setting change unit configured to change a setting of the peripheral image display unit based on the information acquired by the acquisition unit and a shift range of the automatic transmission.

公开(公告)号：US10574934B2

公开(公告)日：2020-02-25

申请号：US16167684

申请日：2018-10-23

申请人： OLYMPUS CORPORATION

发明人： Tomoya Sato

IPC分类号： H04N5/58 ,  A61B1/045 ,  G02B23/24 ,  H04N5/225 ,  H04N5/232 ,  H04N5/235 ,  H04N19/186 ,  A61B1/00 ,  A61B1/05 ,  A61B1/06

摘要： An image signal processing apparatus includes: circuitry including: a mode setting circuitry configured to change a mode to one of a first mode and a second mode; a dividing circuitry configured to divide an input image signal into a base component signal and a detail component signal when the mode setting circuitry sets the first mode; a first tone compressing circuitry configured to perform a tone compression process on the base component signal to generate a compressed base component signal; a synthesizing circuitry configured to generate a synthetic image signal based on the detail component signal and the compressed base component signal; and a second tone compressing circuitry configured to perform a tone compression process such that tone of the input image signal becomes approximately equal to tone of the compressed base component signal when the mode setting circuitry sets a second mode.

公开(公告)号：US20200036934A1

公开(公告)日：2020-01-30

申请号：US15735485

申请日：2017-11-14

申请人： Wuhan China Star Optoelectronics Technology Co., Ltd

发明人： Yong YANG ,  Yingbao YANG

IPC分类号： H04N5/58 ,  H04N13/383 ,  H04N21/422

摘要： The disclosure provides a method for adjusting a screen brightness including the following steps: obtaining a position of a maximum brightness region of visible light in a viewable range of a human eye; and adjusting the screen brightness based on a brightness of the position of the maximum brightness region of visible light in the viewable range of the human eye and a variation of a size a pupil of the human eye. A device for adjusting screen brightness is also provided, including a light sensor, a brightness analyzer, a brightness adjustment and control unit. Compared with the conventional technique, the accuracy of adjusting a brightness of a screen and the convenience of eye watching are improved and the eye health protection is achieved.