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Image and video retrieval method

An image retrieval and image technology, which is applied in video retrieval, retrieval, and image fields, can solve the problems of many invalid matches, poor retrieval effect, and large amount of calculation, and achieve the effect of obvious advantages, fast retrieval speed, and high retrieval accuracy

Inactive Publication Date: 2009-10-28
王磊
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is not difficult to see from the aforementioned prior art retrieval of videos and images that these methods have the disadvantages of excessive computation in the retrieval process, too many invalid matches in the matching process, and poor final retrieval effect.

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Embodiment Construction

[0030] In order to enable those skilled in the art to clearly understand the technical scheme of the present invention, the present invention will be further described in conjunction with the accompanying drawings:

[0031] A video and image retrieval method of the present invention comprises the following steps, such as figure 1 :

[0032] Step 1: Decode the images in the image and video sources to obtain the target image. The image and video sources are obtained from cameras, networks, DV, and TV movies as data sources.

[0033] Step 2: Crop the target image according to the set ratio, and convert it to the format of 8-bit grayscale image, and scale the grayscale image to a set size;

[0034] Step 3: Process the grayscale image using automatic color scale and Gaussian blur algorithm;

[0035] Step 4: The gray histogram of the statistical grayscale image, such as figure 2 shown;

[0036]Step 5: Convert the grayscale image to a 1-bit black and white image, and save the bl...

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Abstract

The invention discloses an image and video retrieval method, which comprises the following steps: decoding images of an image source; cutting, converting and zooming a target image; treating a gray-scale map; counting a gray level histogram of the gray-scale map; converting the gray-scale map to a black and white picture; dividing the black and white picture; calculating a sum; storing the sum into a database to form a query range; inquiring, comparing and calculating errors; indexing fields; and inquiring and comparing to obtain a matching result. Through feature induction and accurate calculation for images and video frame images, the method has quick retrieval speed for the images and the video and high retrieval accuracy; and when the image quality, definition, color tones, watermarks and captions are changed, the retrieval accuracy and speed are not influenced, so the retrieval process is quick, the method is simple and the effects are obvious.

Description

technical field [0001] The invention relates to a retrieval method, in particular to a retrieval method for quickly retrieving approximate images and approximate target video clips based on image and video sources. The invention belongs to the technical field of image and video retrieval. Background technique [0002] With the continuous improvement of Internet technology, the amount of information in it is increasing, which brings great convenience to people's life, work and study. In particular, videos and images with excellent visual effects provide people with rich and colorful information. Watch and save resources. However, it is still difficult to find what you need or what you imagine or what you need to be similar to what you need from the huge amount of videos and images on the Internet. In order to quickly retrieve images and videos, in the prior art, the following two methods for retrieving images or videos are proposed. For example, the application number is: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06T3/40G06T5/00G06T5/40
Inventor 王磊
Owner 王磊
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