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Video acquisition and display synchronization method and apparatus

A display synchronization and video acquisition technology, applied in the field of video processing, can solve problems such as increasing chip complexity, and achieve the effect of reducing complexity and chip cost

Active Publication Date: 2015-08-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, adopting the method in the prior art will increase the complexity of chip design

Method used

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  • Video acquisition and display synchronization method and apparatus
  • Video acquisition and display synchronization method and apparatus
  • Video acquisition and display synchronization method and apparatus

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] The terms "comprising" and "having" in the description and claims of the present invention and the above drawings, as well as any variations thereof, are intended to cover non-exclusive inclusion, for example, processes, methods, A system, product or device is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to the process, method, product or device.

[0044] ...

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Abstract

The embodiment of the invention provides a video acquisition and display synchronization method and an apparatus. The number of pixels output by a display module in a preset time period is obtained, and the number scope of pixels allowed to be acquired in the preset time period by an acquisition module is determined according to the number of pixels output by the display module in the preset time period and the storage capacity of row cache of a chip. Since the number of pixels acquired by the acquisition module is determined by the storage capacity of row cache of the chip, only row cache of the chip is needed for caching the pixels without extra frame cache. In this way, the complexity of the chip design is lowered, and the cost of the chip is reduced.

Description

technical field [0001] Embodiments of the present invention relate to video processing technologies, and in particular, to a video acquisition and display synchronization method and device. Background technique [0002] Video equipment is usually composed of modules such as video acquisition, processing, and output display, such as video surveillance equipment. [0003] Typical video surveillance equipment such as digital hard disk video recorders, analog surveillance cameras, etc., usually, video acquisition and video display use independent timing drivers, and the startup time and timing of the two timing drivers may be different. Therefore, in order to ensure In order for video equipment to work normally, multiple frame buffers are usually required to buffer the collected data. [0004] However, adopting the method in the prior art will increase the complexity of chip design. Contents of the invention [0005] Embodiments of the present invention provide a video acqui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04N5/04
Inventor 邓霜霜刘灿李旭
Owner HUAWEI TECH CO LTD
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