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Image feature matching method and device

A technology of image features and matching methods, applied in image communication, digital video signal modification, electrical components, etc., can solve problems such as inaccurate offsets, hash value conflicts, etc., to avoid hash conflicts, improve accuracy, reduce The effect of calculation

Active Publication Date: 2019-05-24
XIAN WANXIANG ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides an image feature matching method and device, to at least solve the technical problem of inaccurate offset due to hash value collision during feature matching

Method used

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  • Image feature matching method and device
  • Image feature matching method and device

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Embodiment 1

[0029] According to an embodiment of the present invention, an embodiment of an image feature matching method is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0030] Figure 4 is a flowchart of an image feature matching method according to an embodiment of the present invention, such as Figure 4 As shown, the method includes the following steps:

[0031] Step S41, obtaining all the features in the current frame, and identifying each feature with a hash value.

[0032] Step S43, performing deduplication processing on all features.

[0033]In the above steps, processing the features includes: reserving one for the features with the same hash value.

[0034] Step...

Embodiment 2

[0079] According to an embodiment of the present invention, an embodiment of an image feature matching device is also provided, which is used to implement the image feature matching method in Embodiment 1, Figure 7 is a schematic structural diagram of an image feature matching device according to an embodiment of the present invention, a set of Figure 7 As shown, the device includes:

[0080] The acquiring module 70 is configured to acquire all the features in the current frame, and identify each feature with a hash value.

[0081] The processing module 72 is configured to perform deduplication processing on all features.

[0082] The matching module 74 is configured to use the de-duplicated features to perform feature matching in the reference frame.

[0083]Optionally, according to the above-mentioned embodiments of the present application, the deduplication processing performed by the processing module includes at least one of the following: after obtaining a new featur...

Embodiment 3

[0089] According to an embodiment of the present invention, a storage medium is provided, and the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute any one of the image feature matching methods in the above-mentioned embodiments.

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Abstract

The invention discloses an image characteristic matching method and device. The method comprises the steps of obtaining all characteristics in a current frame, and marking each characteristic with a hash value; carrying out de-duplication processing on all characteristics; and carrying out characteristic matching by employing the characteristics after the de-duplication processing in a reference frame. According to the image characteristic matching method and device disclosed by the invention, the technical problem of inaccurate offset due to hash value conflict when the characteristics are matched is solved.

Description

technical field [0001] The present invention relates to the field of video image processing, in particular to an image feature matching method and device. Background technique [0002] When compressing continuous multi-frame computer screen or mobile terminal screen images, there are usually two processing methods. The first method is to independently compress each frame of image, which can only be predicted based on the encoded part of the frame. It is generally used to encode the first frame of images in continuous multi-frame images, and the decoder can directly restore all the information. The second method is to encode and compress only the new content in each frame image relative to the previous frame image. The previously encoded frame can be used as a prediction, and the same part only encodes information such as reference image index and offset position. That's it. For the second method, applicable to images other than the first frame, the decoder finds the refere...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/527
CPCH04N19/527
Inventor 苏睿
Owner XIAN WANXIANG ELECTRONICS TECH CO LTD
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