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33results about How to "Will not affect the viewing effect" patented technology

Head up display, head up display system, display method of head up display or head up display system and automobile

The embodiment of the invention provides a head up display, a head up display system, a display method of the head up display or the head up display system and an automobile and relates to the technical field of displaying. The problem that when an existing head up display displays driving information images on a semi-permeable semi-reflecting part, the image watched by a driver is distorted is solved. The head up display comprises a display source, a polarizing controller, a receiver and a processor, wherein the display source is used for outputting correcting images and corrected driving information images to the semi-permeable semi-reflecting part in a time sharing mode; the polarizing controller is used for controlling the polarizing direction of light emitting from the display source;the receiver is used for receiving a distorted corrected image displayed on the semi-permeable semi-reflecting part; and the processor is connected with the receiver and used for comparing the distorted corrected image received by the receiver with a correcting image pre-stored in the processor to obtain first image distortion quantity and correcting the to-be-displayed driving information imagesaccording to the first image distortion quantity to obtain the corrected driving information images to be used for the head up display.
Owner:BOE TECH GRP CO LTD

Projector thermal out-of-focus judgment method and projector

The invention discloses a projector thermal out-of-focus judgment method. The method comprises the following steps: adjusting a focal length to make a projection picture clear; acquiring a clear projection picture as a first reference picture in a camera space; obtaining a pixel range value and/or a vertex coordinate value of the first reference picture as a first standard state value; triggeringphotographing regularly, and acquiring a first to-be-judged projection picture in a camera space; obtaining a pixel range value and/or a vertex coordinate value of a first to-be-judged projection picture in a camera space, and calculating the offset of the pixel range value and/or the vertex coordinate value of the first to-be-judged projection picture relative to the first standard state value, if the offset exceeds a preset value, judging that thermal defocusing occurs, and otherwise, carrying out the step of triggering photographing at regular time to obtain the first to-be-judged projection picture in a camera space. According to the invention, extra components are not needed, and the motor is not moved in the process of judging whether hot focus shifting occurs or not, so that the viewing effect is not influenced, and the user experience is high.
Owner:CHENGDU XGIMI TECH CO LTD

Method and device for embedding watermark of stereo video and method for extracting watermark

ActiveCN106507216AWill not affect the viewing effectAvoiding problems with modifying stereoscopic video imagesSelective content distributionParallaxCorrelation coefficient
The invention discloses a method and device for embedding a watermark of a stereo video and a method for extracting the watermark of the stereo video. The method for embedding the watermark of the stereo video includes embedding a watermark identification sequence in a stereo video frame; obtaining a global parallax error between a left image and a right image of the stereo video frame, and obtaining a left matching image and a right matching image according to the global parallax error; obtaining a correlation coefficient between the left matching image and the right matching image, and generating an embedding mode coefficient according to a comparison relation between a correlation coefficient and watermark information; and a storage key which includes an embedded mode coefficient, the global parallax error and watermark information capacity. According to the method for embedding the watermark of the stereo video, through a zero-watermark technology which comprehensively utilizes a global parallax error characteristic of the stereo video, after the watermark information is embedded in the stereo video, video data is not damaged, the problem that a stereo video image is modified when a watermark image is embedded is avoided, and thus a video watching effect is not influenced.
Owner:DAWNING INFORMATION IND BEIJING +1

Content display method and device

The embodiment of the invention provides a content display method and device. The method comprises: when a target content is displayed on a liquid crystal display panel, obtaining a pre-assigned original gray scale for displaying the target content; determining whether the obtained original gray scale is smaller than a preset gray scale or not; if the obtained original gray scale is smaller than the preset gray scale, determining a target gray scale corresponding to the obtained original gray scale according to a corresponding relation between the pre-assigned original gray scale and the target gray scale, wherein a target gray scale in each record in the corresponding relation between the pre-assigned original gray scale and the target gray scale is larger than the original gray scale; and displaying the target content on the liquid crystal display panel with the target gray scale. Compared to displaying of a target content on a liquid crystal display panel with an original gray scale, the content display method and device can display a content on the liquid crystal display panel with a higher target gray scale than the original gray scale to eliminate a light leakage phenomenon,avoid influence on users' watching effects and avoid reduction of users' watching experiences.
Owner:HISENSE VISUAL TECH CO LTD

Content display method and device

The embodiment of the invention provides a content display method and device. The method comprises: when a target content is displayed on a liquid crystal display panel, obtaining a pre-assigned original gray scale for displaying the target content; determining whether the obtained original gray scale is smaller than a preset gray scale or not; if the obtained original gray scale is smaller than the preset gray scale, determining a target gray scale corresponding to the obtained original gray scale according to a corresponding relation between the pre-assigned original gray scale and the target gray scale, wherein a target gray scale in each record in the corresponding relation between the pre-assigned original gray scale and the target gray scale is larger than the original gray scale; and displaying the target content on the liquid crystal display panel with the target gray scale. Compared to displaying of a target content on a liquid crystal display panel with an original gray scale, the content display method and device can display a content on the liquid crystal display panel with a higher target gray scale than the original gray scale to eliminate a light leakage phenomenon,avoid influence on users' watching effects and avoid reduction of users' watching experiences.
Owner:HISENSE VISUAL TECH CO LTD

Automobile rear-row protector based on information technology, and using method thereof

The invention discloses an automobile rear row protector based on an information technology, and a using method thereof. The protector comprises a frame body, lifting-out cavities which are symmetrical in the left-right direction and provided with upward openings are formed in the frame body, lifting-out plates are installed on the inner walls of the lifting-out cavities in a sliding mode, and racks which are symmetrical in the front-back direction are fixedly arranged on the outer sides of the lifting-out plates. The outer side of the lifting-out cavity communicates with a meshing cavity, gear shafts are rotationally installed on the front wall and the rear wall of the meshing cavity, transmission gears meshed with the racks are symmetrically and fixedly arranged at the front position and the rear position of each gear shaft, a motor cavity is formed in the frame body, and each gear shaft extends forwards into the corresponding motor cavity and is fixedly provided with a belt wheel. The belt wheels are connected through a belt in a crossed winding mode. According to the invention, whether an electromagnet is electrified or not is automatically controlled by the protector by sensing illumination, so that a plate for shielding sunlight extends out through the reset of a spring, and the illumination does not greatly influence the viewing effect.
Owner:王承友

Method and device for embedding watermark in stereoscopic video and method for extracting watermark

ActiveCN106507216BWill not affect the viewing effectAvoid problems that corrupt stereoscopic video imagesSelective content distributionParallaxStereoscopic video
The invention discloses a method and device for embedding a watermark of a stereo video and a method for extracting the watermark of the stereo video. The method for embedding the watermark of the stereo video includes embedding a watermark identification sequence in a stereo video frame; obtaining a global parallax error between a left image and a right image of the stereo video frame, and obtaining a left matching image and a right matching image according to the global parallax error; obtaining a correlation coefficient between the left matching image and the right matching image, and generating an embedding mode coefficient according to a comparison relation between a correlation coefficient and watermark information; and a storage key which includes an embedded mode coefficient, the global parallax error and watermark information capacity. According to the method for embedding the watermark of the stereo video, through a zero-watermark technology which comprehensively utilizes a global parallax error characteristic of the stereo video, after the watermark information is embedded in the stereo video, video data is not damaged, the problem that a stereo video image is modified when a watermark image is embedded is avoided, and thus a video watching effect is not influenced.
Owner:浙江曙光信息技术有限公司
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