摘要:
Pointing device like mouse or joystick comprises camera for capturing the display screen and image processing means for recognizing and tracking the pointing cursor icon or mark from the captured image and producing the pointing signal. The pointing device of present invention can be used with any type of display without and additional tracking means like ultra sonic sensor, infrared sensor or touch sensor. The pointing device of present invention includes mark outputting portion, camera portion for capturing the said mark outputting portion and image processing portion for recognizing the said mark outputting portion from the captured image and producing the pointing signal.
摘要:
Adjusting data for photographed images includes detecting a reference image in the data, where the reference image contains a detectable uniformity and adjusting the data according to the reference image. The reference image may be a uniform grid pattern of dots preprinted on paper. A paper type may be determined prior to adjusting the data according to the reference image. The paper type may be determined according to spacing and/or patterns of the dots, and/or layout of page areas covered with dots. Adjusting the data may include removing effects corresponding to a folded corner, a removed corner, an obstructed corner, lens flare spots, and/or a shadow. Positional coordinates of the data may be adjusted by normalizing the grid through a non-linear transformation that eliminates curvature of the grid and/or distortions based on perspective.
摘要:
An image processing apparatus includes an image output apparatus and an image reading apparatus. The image output apparatus includes an entry order acceptance module, an information image generation module, a combining module, an image output module. The image reading apparatus includes a reading module, an extraction module, a determination module, and an alarm module.
摘要:
Images of a least a portion of a structurally encoded pattern formed on a surface from a camera can be analyzed to determine a position of a camera. The structurally encoded pattern can include a plurality of elements. Each element can be encoded with information identifying a location and orientation of the element with respect to the surface. A computer program can identify at least a portion of one or more pattern elements in the image and determine the position of the camera relative to the surface from the information encoded in the one or more pattern elements in the image.
摘要:
Methods and devices for coding of feature locations are disclosed. In one embodiment, a method of coding feature location information of an image includes generating a hexagonal grid, where the hexagonal grid includes a plurality of hexagonal cells, quantizing feature locations of an image using the hexagonal grid, generating a histogram to record occurrences of feature locations in each hexagonal cell, and encoding the histogram in accordance with the occurrences of feature locations in each hexagonal cell. The method of encoding the histogram includes applying context information of neighboring hexagonal cells to encode information of a subsequent hexagonal cell to be encoded in the histogram, where the context information includes context information from first order neighbors and context information from second order neighbors of the subsequent hexagonal cell to be encoded.
摘要:
A workflow information capture system uses a digital pen to capture handwritten information about a production process resource. The pen captures the handwritten markings from a worksheet, identifies the position of the marking, based on the position determines one or more process parameters for the marking, and saves the handwritten markings and their corresponding process parameter in a memory. The system may then use this information to generate recommendations for improving a workflow that is implemented by the process resource.
摘要:
An input function display device includes: a position information reading unit that is provided with an imaging element optically reading a position information pattern representing a coordinate position on a plane; and a display unit that performs display on the basis of marks read from the position information pattern recorded in a display area, wherein the display unit includes a transparent conductive film having a conductive pattern in which the position information pattern is applied onto the transparent substrate, and a display portion that performs display using the conductive pattern as a common electrode.
摘要:
An electronic pen for interacting with a substrate having a pattern of coded data printed thereon. The pen includes an infrared light source for illuminating an area of the substrate; an image sensor for imaging the coded data illuminated in the area; a force sensor for sensing an interaction between the pen and the substrate; a processing system configured for: determining digital ink from the imaged coded data; storing the digital ink in a memory buffer; determining whether the pen is positioned within a predetermined functional zone of the substrate; and initiating a response in the pen in the event that the pen is positioned within the predetermined functional zone. The response is initiated without reference to a remote computer system.
摘要:
A product provided with a coding pattern which comprises a plurality of marks, each of which represents one of at least two different values, and which further comprises a plurality of nominal positions, each of said plurality of marks being associated with a nominal position and the value of each mark being determined by its location relative to its nominal position. The invention also comprises use of the product.
摘要:
A system for delivering an electronic document is disclosed. The system has a printer for printing on a substrate user information indicative of a send instruction which is visible to a user and coded tags invisible to the user. A sensing device senses the coded tags when the sensing device is moved relative to the substrate by the user interacting with the user information. A computer system electronically captures a message composed with the sensing device via movement of the sensing device relative to a predetermined area on the substrate. The computer system determines the predetermined area on the substrate and electronically captures the message. When the sensing device senses coded tags coincident with the send instruction, the computer system transmits the message to a recipient address.