A method and device for determining video format information
A video format and video signal technology, applied in the video field, can solve the problems of high cost, inability to determine the video format information output by the camera, cumbersome and other problems
Active Publication Date: 2019-11-15
ZHEJIANG DAHUA TECH CO LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The process of using this method to determine the video format information is cumbersome, costly, and inefficient; and if the display is far away from the camera, the operator cannot observe through the display, and thus cannot determine the video format information output by the camera
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Embodiment Construction
[0030] In order to make the object, technical solution and beneficial effects of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0031] figure 1 It exemplarily shows a schematic diagram of a system architecture applicable to the embodiment of the present invention, as shown in figure 1 As shown, the system architecture applicable to the embodiment of the present invention includes a camera 101 and a reverse controller 102 for determining video format information; the camera and the direction controller are connected by a long line or a twisted pair.
[0032] In the following, the basic concepts involved in the embodiments of the present invention are introduced for ease of understanding.
[0033]Video format inf...
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The embodiment of the invention relates to the technical field of videos, and in particular relates to a method and equipment for determining video format information, used for accurately and rapidly determining the video format information. The method provided by the embodiment of the invention comprises the steps of acquiring at least one feature value of a video signal, wherein the at least one feature value comprises any one or more of a frame blanking sequence, a line period and color subcarrier frequency; and determining the video format information corresponding to the at least one feature value according to a preset mapping relation between the at least one feature value and the video format information, wherein the video format information comprises a video format, a video system and a video frame rate. The different feature values are corresponding to the different video format information, so that the video format information can be accurately and rapidly determined by at least one feature value in the acquired video signal.
Description
technical field [0001] Embodiments of the present invention relate to the field of video technology, and in particular, to a method and device for determining video format information. Background technique [0002] Currently, the video camera can output video signals in multiple video formats, simultaneously output video signals in multiple video formats through multiple cables, or selectively output video signals in different video formats through a single cable. [0003] Since different video formats require different back-end decoders to decode, therefore, to use multiple cables to simultaneously output video signals of multiple video formats, it is necessary to input different video signals into different back-end decoders or reverse control For example, the video format of HDCVI can only be connected to the back-end decoder of CVI for decoding; however, in actual installation, a camera usually only connects to one video format for output, and other output channels are i...
Claims
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IPC IPC(8): H04N7/01H04N5/765H04N5/775H04N5/77
CPCH04N5/765H04N5/77H04N5/775H04N7/01H04N7/0127
Inventor 沈旭杨建军俞黎卿徐平华
Owner ZHEJIANG DAHUA TECH CO LTD