Object tracking method, augmented reality method, and apparatus

A target tracking and target technology, applied in the field of image processing, can solve the problems of long time consumption, poor portability, large error rate, etc., and achieve the effect of removing mismatches, ensuring accuracy, and reducing the amount of calculation.

Active Publication Date: 2016-12-21
易视星空科技无锡有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To realize this technology, it is necessary to obtain the information of the entity in the real world, determine the target to be found, determine the position of the target, and realize the tracking of the target. The existing tracking method requires expensive tracking equipment and poor portability. , cannot be widely used on smart terminals; or the calculation is complicated, time-consuming, and the error rate is large, so it is difficult to meet the real-time requirements

Method used

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  • Object tracking method, augmented reality method, and apparatus
  • Object tracking method, augmented reality method, and apparatus
  • Object tracking method, augmented reality method, and apparatus

Examples

Experimental program
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Embodiment 1

[0037] Such as figure 1 Shown, the present invention provides a kind of target tracking method, it is characterized in that, comprises:

[0038] S101 acquires the tracking template data, the embodiment of the present invention uses the tracking template as the identification basis, does not need markers, the implementation method is simple, the tracking template used can be a fixed template, and the calculation is simplified at this time, and it can also be a dynamic template, According to the acquired real-time image of the target, it is processed and updated as a tracking template, which effectively reduces the misjudgment rate and facilitates the subsequent identification and matching process.

[0039] S102 acquires image data, the camera collects real-world image data, and extracts feature data from the image data, such as extracting ORB features or SURF features as image data, to prepare for matching and recognition.

[0040] S103 Perform feature matching according to th...

Embodiment 2

[0059] Figure 4 A flow of a real-time target tracking method according to an embodiment of the present invention is shown, and the specific steps are as follows:

[0060] S201: Before starting the recognition, first establish the target feature database, and extract the ORB feature and SURF feature for each target sample image by obtaining the target sample image data set, and establish the target feature database, such as Figure 5 As shown, after acquiring the target sample image data set, collect ORB features, and judge whether the acquired feature points are greater than the threshold, if less than the threshold, do not add the target feature database, if greater than the threshold, perform SURF feature extraction, and then judge the extracted SURF Whether the number of feature points is greater than the threshold, if it is less than the threshold, it will not be added to the target feature database, if it is greater, the obtained ORB feature and SURF feature will be adde...

Embodiment 3

[0074] Embodiments of the present invention provide a method for target tracking, such as Figure 9 shown, including:

[0075] S301 Acquire all images in the target sample image dataset.

[0076] S302 establishes a target feature database by extracting the ORB feature and SURF feature of each target sample image. By obtaining the target sample image data set, extracting the ORB feature and SURF feature of each sample image, the target feature database is established. In addition, users can also customize the target and add the sample image to the target data set.

[0077] S303 acquires real-time image data, and extracts ORB features. Obtain real-time image data and extract ORB features of the real-time image.

[0078] S304 is based on the Brute Force matching algorithm, matching the ORB features of the real-time image and the target image data set. Based on ORB feature matching, the real-time image is matched with the target sample one by one. If it matches a certain samp...

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Abstract

The invention relates to an object tracking method. The method comprises the following steps: obtaining tracking template data; obtaining image data; according to the image data of current time and the tracking template data, performing feature matching to obtain matching results; screening the matching results to select screened matching results; and according to the screened matching results, determining position information of an object in the image data. The invention also relates to an augmented reality method. The augmented reality method comprises the object tracking method. After the position information of the object is obtained, according to the position information of the object, virtual information correlated with the object is displayed in a position area where the object is located. Through the technical scheme provided by the embodiments of the invention, the position information of the object can be effectively determined, the result reliability is guaranteed, the augmented display operation efficiency is high, and the real-time performance is good.

Description

technical field [0001] The present invention relates to the field of image processing, in particular, to a target tracking method and device thereof, and an augmented reality method and device thereof. Background technique [0002] Augmented Reality (AR for short) is a new technology that "seamlessly" integrates real world information and virtual world information. It takes the physical information (visual information, sound, taste, touch, etc.) that is difficult to experience in the real world within a certain time and space range, and uses science and technology such as computers to simulate and then superimpose, and apply the virtual information to the real world. The world is perceived by human senses, so as to achieve a sensory experience beyond reality. To achieve this technology, it is necessary to obtain the information of the entity in the real world, determine the target to be found, determine the position of the target, and realize the tracking of the target. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/64
CPCG06V10/75
Inventor 黄飞邓卉田泽康
Owner 易视星空科技无锡有限公司
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