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Window detection

A window and video technology, used in image enhancement, instruments, television, etc., can solve the problem of impossible to distinguish different areas, and achieve the effect of low noise

Inactive Publication Date: 2005-03-02
费斯布克公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, screen settings on traditional monitors apply to the entire area of ​​the screen, and it is often impossible to distinguish between different areas

Method used

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Experimental program
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Embodiment Construction

[0028] exist figure 1 The middle video display monitor 1 shows a window 2 in which a picture of an eye is displayed. The image across the entire monitor is made up of discrete pixels 3 regularly arranged in a grid with rows and columns. A complete screen might, for example, include 1200 x 1600 pixels in a CRT monitor. The pixels 3 are illuminated on the basis of data supplied in digital or analog form, depending on the requirements of the monitor 1 . Currently, most monitors are supplied with analog RGB signals, in which case an analog-to-digital converter (requires a multiplexed A / D converter or three A / D converters and preferably able to produce 4-bit values). Using row memory L and comparator, will respectively correspond to figure 1 The data of two lines P (previous line) and C (current line) of the display screen at three different positions at different times shown in , are sampled and saved, thereby feeding three other line monitors G (1.1, 1.2, 1.3) Provide data r...

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Abstract

Apparatus for identifying the four coordinates of a window on a visual display monitor, the apparatus comprising means for obtaining digital data corresponding to pixels of an image to be displayed on the monitor, a memory arranged to receive the digital data, a comparator arranged to compare the values of data for horizontally and vertically adjacent pixels, means for generating a gradient value indicative of the difference in luminance of adjacent pixels in the horizontal and in the vertical directions, a memory for storing the gradient values, means for detecting a unique configuration in the gradient values to identify the three coordinates of one edge of the window, and means for checking in the direction perpendicular to the identified edge for a corresponding unique configuration, to determine the fourth coordinate of the window.

Description

technical field [0001] The present invention relates to a detection of a specified screen area, in electronic display devices, especially in computer terminals or monitors for video display devices, including CRT monitors and monitors based on matrix displays, commonly referred to as " window". Background technique [0002] In modern display devices, it is often necessary to display several different files at the same time. These files may be from the same or different applications, and may contain the same or different types of media, such as text, graphics, pictures and videos, which may need to all be displayed on the monitor screen at the same time. These media are displayed in individual boxes called windows, which are contiguous or next to each other, more often relatively randomly displayed on the screen in an overlapping configuration. For optimal reproduction of graphics or moving images, different screen settings are required compared to text. For example, a vid...

Claims

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Application Information

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IPC IPC(8): G09G5/14G06T5/00G06T7/00G06T7/13G09G5/36H04N5/00
CPCG09G2320/0686G06T7/004G06T7/0085G06T2207/20164G09G5/003G06T5/00G09G5/14G06T7/13
Inventor A·H·M·霍尔特斯拉格C·亨茨彻尔
Owner 费斯布克公司