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Video processing method and device

A video processing and video technology, which is applied in the field of video processing, can solve the problems of video retrieval correctness, low precision, occupation, etc., and achieve the effect of improving video retrieval efficiency and video retrieval accuracy

Inactive Publication Date: 2014-04-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For the first method, since some video frames will be discarded during fast-forward playback, video frames containing key information may be discarded, which will have a negative impact on the correctness of video retrieval; and the high-speed fast-forward playback method is adopted, A large number of video frames are decoded and therefore, consume too many system resources
For the second method, when the user selects the playback point, since the video content corresponding to the playback point is unknown, the accuracy of selection is not high, and the user often needs to repeatedly select the playback point, which is time-consuming and the efficiency of video retrieval is low.

Method used

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Examples

Experimental program
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Embodiment 1

[0075] The embodiment of the present invention provides a video processing method, taking the perspective of execution at the encoding end as an example, see figure 1 , the method flow provided by this embodiment includes:

[0076] 101. Collect original images of the video, and perform scaling processing on the collected original images to obtain a thumbnail image of each original image.

[0077] 102. Encode each thumbnail image to obtain a thumbnail image code stream.

[0078] 103. Encode each original image to obtain an original image code stream.

[0079] 104. Insert the thumbnail image code stream into the original image code stream to obtain the video code stream, so that after the decoder obtains the video code stream, it decodes the video code stream to obtain a plurality of decoded original images and decoded multiple decoded thumbnail images, and play multiple decoded original images and multiple decoded thumbnail images.

[0080] In the method provided in this emb...

Embodiment 2

[0092] An embodiment of the present invention provides a video processing method, taking the perspective of execution at the decoding end as an example, see figure 2 , the method flow provided by this embodiment includes:

[0093] 201. Acquire a video code stream from an encoding end.

[0094] 202. When the terminal pointer is displaced on the video playback progress bar, acquire an SEI packet corresponding to the current position of the terminal pointer in the video code stream.

[0095] 203. Decode the SEI packet to obtain a thumbnail image.

[0096] 204. Play the thumbnail image in the thumbnail image play window.

[0097] In the method provided in this embodiment, after the video code stream is obtained from the encoding end, when the user browses the video at the decoding end, the user can drag the terminal pointer on the video playback progress bar to see the corresponding video in the thumbnail playback window in real time. Thumbnail images, the accuracy of video re...

Embodiment 3

[0106] Before explaining the video processing method provided in this embodiment, the system architecture and components of the encoding end are firstly introduced. see image 3 , the encoding end mainly includes five parts, which are image acquisition equipment, image processing equipment, scheduling equipment, original image encoding equipment, thumbnail image encoding equipment and code stream output equipment. Among them, the image acquisition device is used to collect the original image of the video, and output the collected original image to the image processing device; the image processing device is used to pre-process the original image and zoom the original image; wherein, the pre-processing Including but not limited to image denoising processing, image sharpening processing and interlacing processing; scheduling equipment, used to complete encoding scheduling, buffering of original image code stream and thumbnail image code stream, synchronization of original image a...

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Abstract

The invention discloses a video processing method and device, which belongs to the technical field of video processing. The method compries the steps of: collecting an original image of the video, and zooming the collected original image to obtain a zooming image of each original image; coding the zooming image to obtain a zooming image code stream; coding each original image to obtain an original image code stream; inserting the zooming image code stream into the original image code steam to obtain a video code stream, so that a decoding end after obtaining a video code stream decodes the video code stream to obtain and play a decoded plurality of original images and a decoded plurality of zooming images. Because the zooming image code stream is inserted into the original video code stream, a terminal pointer is dragged on a video playback progress bar by a user, the corresponding zooming image in real-time can be seen on the zooming image playback window, thereby improving the efficiency of video retrieval.

Description

technical field [0001] The present invention relates to the technical field of video processing, in particular to a video processing method and device. Background technique [0002] With the continuous advancement of video processing technology, users can perform video retrieval before watching a video, that is, users can browse the video in advance, find out the video interval they are interested in, and then watch the video content corresponding to the video interval. In order to reduce the time for users to perform video retrieval, how to process the video has become a key issue. [0003] The prior art usually adopts two video processing methods. The first method uses high-speed fast-forward to play the video. Generally, there are 2 times speed, 4 times speed, 8 times speed, 16 times speed and so on. When playing a video, one situation is to decode all frames in the video, and play a part of the decoded video frames according to the preset ratio, and discard the remain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/29H04N19/46H04N19/44H04N19/152
Inventor 付洋李旭李俊婵
Owner HUAWEI TECH CO LTD