Method and device for displaying characteristic region images on devices with different resolution ratios
A feature area and display device technology, applied in image communication, color TV parts, TV system parts, etc., can solve problems such as inconsistent aspect ratio, stretched images, and black edges in images
Active Publication Date: 2014-08-27
ZHEJIANG UNIVIEW TECH CO LTD
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Problems solved by technology
[0005] Because in the first step, the staff randomly captures the feature area of the live image on the console, and the feature area is an irregular rectangle, so the method of the above-mentioned prior art has the following disadvantages: the delimited feature area image is displayed on the display After the device is displayed, because the aspect ratio of the feature area is inconsistent with the aspect ratio of the display device, the image of the feature area is stretched or has black borders when displayed on the display device, which affects the image of the feature area. Image display effect
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[0046] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, and the following embodiments do not constitute a limitation of the present invention.
[0047] figure 1 The video display process in the monitoring system is shown, and the monitoring system includes a camera, a console, a display device and a central management server. The camera generally refers to a surveillance camera, and the resolution of the surveillance camera is generally 1080*720, 720*576, 704*288 or 176*144. The console generally refers to a computer, and it can also be a mobile device such as a mobile phone or a pad. The staff establishes a live connection with the camera through the computer to play the live images captured by the camera. The resolution of the computer is generally 1440*900, 1920*1080 or 1280*800. The display device is used to display camera images. When in use, multiple display screens ...
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The invention discloses a method and device for displaying characteristic region images on devices with different resolution ratios. The method includes the steps of calculating the length to height ratios of the captured characteristic region images through the resolution ratios of a camera, a control console and a display device, comparing the length to height ratio of the display area, corresponding to the current resolution ratio of the camera, of a characteristic region with the length to height ratio of the current resolution ratio of the display device, if the same, directly sending the center coordinates and side lengths of the display area to the display device to be displayed, and if not the same, conducting longitudinal or transverse complementing on the display area till the length to height ratio of the display area is the same as the length to height ratio of the current resolution ratio of the display device, and sending the center coordinates and side lengths of the display area where complementing is conducted to the display device to be displayed. The invention further discloses the corresponding device which comprises a capturing module, a calculating module, a judging module and a processing module. By means of the method and the device, stretching or edge blackening can not occur when the captured characteristic region is displayed on the display device.
Description
technical field [0001] The invention belongs to the technical field of monitoring, and in particular relates to a method and a device for displaying characteristic region images on devices with different resolutions. Background technique [0002] In the monitoring system, after the camera captures the image, the monitoring center can realize real-time monitoring through the console or display device. In the monitoring management center, the display device is usually a video wall spliced by several display screens to display the images captured by the camera. [0003] The images captured by the camera often have a large scene, and it is difficult for the user to find the required information directly from the image displayed by the display device or to see the local details of the image clearly. Therefore, when the user observes an area of interest on the console, the area of interest needs to be marked and enlarged for display, so that it is easier to observe the info...
Claims
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IPC IPC(8): H04N7/18H04N5/262
Inventor 蒋莹凯任翔
Owner ZHEJIANG UNIVIEW TECH CO LTD