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Feature extraction method and system for point-to-read image, terminal equipment and storage medium

A feature extraction and point-reading technology, applied in the field of point-reading recognition, can solve the time-consuming problem of point-reading images, achieve the effect of solving time-consuming problems, facilitating search and matching and point-reading coordinate transformation, and improving the effect of point-reading

Active Publication Date: 2020-04-28
GUANGDONG XIAOTIANCAI TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a feature extraction method, system, terminal equipment and storage medium for point-reading images, so as to solve the time-consuming problem of feature extraction for point-reading images

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  • Feature extraction method and system for point-to-read image, terminal equipment and storage medium
  • Feature extraction method and system for point-to-read image, terminal equipment and storage medium
  • Feature extraction method and system for point-to-read image, terminal equipment and storage medium

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Embodiment Construction

[0056] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0057] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude one or more other Presence or addition of characteristics, wholes, steps, operations, elements, components and / or collections.

[0058] In order ...

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Abstract

The invention belongs to the field of point-to-read recognition, and discloses a feature extraction method and system of a point-to-read image, terminal equipment and a storage medium. The method comprises the following steps: acquiring a point-to-read image of a point-to-read page; converting the point reading image into a Umat object variable; and calling an Opencl program interface to carry outparallel processing on the Umat object variables, and extracting feature points in the point-to-read image and attributes of the feature points. According to the method, an Opencl heterogeneous platform is applied to extraction of point-to-read features; existing hardware resources are fully utilized for acceleration, the problem of time consumption of high-resolution image feature point extraction can be solved through parallel processing when feature points are extracted, the extraction number of point-to-read feature points cannot be reduced, subsequent search matching and point-to-read coordinate transformation are facilitated, and the point-to-read effect is improved.

Description

technical field [0001] The present invention relates to the technical field of point-to-read recognition, in particular to a feature extraction method, system, terminal device and storage medium of a point-to-read image. Background technique [0002] There are two main methods of point reading, one is equipped with a special point reading pen and supporting teaching materials, and broadcasts the content of the corresponding position according to the sensed position of the point reading pen; the other does not need a point reading pen, but through the image Identify to locate click-to-read content the user points to. [0003] With the rapid development of computer technology, point-reading through point-reading pens and supporting textbooks has gradually been eliminated, and the use of image recognition technology to obtain point-reading content pointed to by users on paper book pages is more and more in line with market demand. . [0004] The point reading of paper books n...

Claims

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Application Information

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IPC IPC(8): G06K9/46G06T1/00
CPCG06T1/0007G06V10/40Y02D10/00
Inventor 洪锦奇邓小兵
Owner GUANGDONG XIAOTIANCAI TECH CO LTD
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