The invention relates to a variable information display device based on a projection system. The variable information display device at least comprises an image acquisition module, a control module and a projection display module. The image acquisition module comprises at least one camera used for acquiring human eye information. The human eye information comprises an image of at least one pupil and a virtual image imaged on the cornea in front of the pupil. And the control module is used for judging the sight direction of the human eyes and the articles corresponding to the sight direction according to the human eye information acquired by the image acquisition module. The projection display module comprises at least one projector. And the projector is used for carrying out projection display according to the human eye sight line direction obtained by the control module and the corresponding object. When each projector can perform projection independently according to the sight line direction of human eyes, the control module is used for controlling the display module to display according to the sight line direction of the human eyes obtained by the control module; the related information of the light cone directions of the projectors and the coordinates of the object controls the projectors to project in a manner of preventing the plurality of projectors from repeatedly projecting the same object in the same region in the same time period to influence the visual experience of audiences.

Variable information display device based on projection system

The present invention provides a quantification technique of an installation state of a range image camera in a range image camera system provided with a plurality of range image cameras. In the range image camera system provided with the plurality of range image cameras and the range image camera cooperative processing device for cooperatively processing the plurality of range image cameras, the installation information of the range image cameras is generated from a range distribution of the range image photographed by the range cameras and a luminance distribution of the luminance image to photograph the reflected light of the irradiation light of the range image camera arranged adjacently.

Range image camera, range image camera system, and control method of them

A projection control apparatus includes a CPU configured to perform control to successively project a plurality of images for correction onto a projection target, each of the images for correction being configured such that a marker image is arranged at a preset position in the image, to acquire information of a plurality of photographed images including the images for correction projected onto the projection target, to detect a difference between the respective photographed images, based on positions of the marker images, and to set a correction condition for projecting an image, based on the information of the photographed images, in accordance with the detected difference of a projection image range.

Projection control apparatus, projection apparatus, projection control method, and storage medium storing program

A projection device and a projection method are provided. The projection device includes a projection lens, an image generation optical path module, an image capturing device and a controller. The image generation optical path module generates a visible light image and an invisible light image according to a control signal, and projects the visible light image and the invisible light image to a projection area through the projection lens. The image capturing device photographs the projection area to obtain an invisible light reference image. The controller is coupled to the projection lens, the image generation optical path module and the image capturing device, and corrects at least one of the projection lens and the control signal according to the invisible light reference image and the invisible light image.

Projection device and projection method thereof

A display system includes: a video display apparatus; and a mobile terminal that communicate with each other. The video display apparatus includes: a measurement pattern generator that generates a plurality of measurement patterns; a projection unit that projects the measurement patterns; a first transceiver that communicates with the mobile terminal to receive information regarding distortion correction of video; and a distortion corrector that corrects the distortion. The mobile terminal includes: a camera unit that photographs the projected measurement patterns; a controller that generates the distortion correction information based on the photographed measurement patterns; and a second transceiver that communicates with the first transceiver to transmit the distortion correction information to the video display apparatus. The measurement pattern generator adds a common pattern to each measurement pattern, which indicates a reference position of each of the measurement patterns. The controller generates the distortion correction information based on the common pattern.

Display system and information processing method

When projecting a video in conformity to the shape of a three-dimensional object using a projector, a pattern such as a grid is projected and the projected pattern is photographed, and then the position or shape of a projection object is calculated, whereby making it possible to apply appropriate geometric transformation to a projected video. However, when a grid is projected in superposition while video content is being displayed, the grid is visible to a viewer, and that the position or shape of a projection video cannot be calculated while a video content is being displayed. The present invention uses the freedom of color representation and the color redundancy of a color wheel, buries an invisible pattern not visible to human eyes in a video, and photographs the video in synchronism with the rotation of the color wheel, thereby making it possible to discriminate the buried invisible pattern.

Projector, video display device, and video display method

The objective of the invention is to more appropriately correct distortion in a projected picture. A projection type picture display apparatus comprises: a picture conversion unit that performs picture conversion for an externally input picture; a picture projection unit that projects, to a picture projection plane, a picture obtained by picture conversion by the picture conversion unit; an image capture unit that captures an image by photographing the projection boundaries of the projected picture projected by the picture projection unit and an object for correction; and a calculation unit that performs a calculation using the image captured by the image capture unit. The calculation unit generates correction data from the image, captured by the image capture unit, of the projection boundaries of the picture projection unit and the object for correction. The picture conversion unit performs, on the basis of the correction data generated by the calculation unit, picture conversion in such a manner that the projection boundaries of the projected picture projected by the picture projection unit become a rectangle on the picture projection plane.

Projection type picture display apparatus and projected picture adjustment method

Provided is a technique for enabling suitable correction of geometrical distortions which occur due to the shape of a curved surface of a screen or the like, thereby obtaining suitable images which are easy to see for a user. A projector 1 serving as an image display device for projecting images onto a screen 2 is provided with a projection lens 22 located at a first position and a camera 10 located at a second position. If the screen 2 has a curved surface, the projector 1: acquires a camera image obtained by using the camera 10 to capture a first image projected onto the screen 2; performs, on the basis of the camera image and information of the first position and the second position, for an image to be displayed, geometrical conversion for correcting geometrical distortions caused by the curved surface, as viewed from a first virtual viewpoint position (virtual viewpoint 5); and projects the image as converted onto the screen 2.

Image display device and method

Popular Tasks used by Researchers

How can I help with your research?

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

We encountered an error while loading the panel. Please try refreshing the page.

Something went wrong

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

Anyone with the link can view this chat. You can switch it back to private anytime.

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Higuchi Haruhiko

Author Tools

Chat about Author

Papers

Display system and information processing method

Projector, video display device, and video display method

Projection type picture display apparatus and projected picture adjustment method

Image display device and method