Outdoor scene recognition method fused with sensor information

A scene recognition and sensor technology, applied in character and pattern recognition, instruments, image data processing, etc., can solve problems such as poor resolution, poor color contrast, affecting the results of straight line detection, increasing the difficulty of correction, etc., to reduce the matching range , Improving the recognition accuracy and the effect of robustness enhancement

Active Publication Date: 2014-01-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

For example, if trees occupy a large area in the image, a large area of ​​edge points will be formed in the edge binary image (Edge Map), which will seriously affect the results of line detection; For any existing linear detection method, it is impossible to avoid the detection of such obvious linear interference objects
In addition, since the retrieved pictures are taken by the user using a mobile phone, the target building to be corrected may only occupy a small area in the image, and the image must be compressed by the client program before being uploaded to the server by the mobile phone, so the re

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  • Outdoor scene recognition method fused with sensor information
  • Outdoor scene recognition method fused with sensor information

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Embodiment Construction

[0035] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] Such as figure 1 As shown, the outdoor scene recognition method for fusion sensor information of the present invention is applicable to each sample image in the sample image library of the method is a frontal image of the scene; the specific process of the method is:

[0037] Step 1: The user turns on the shooting device of the mobile terminal, collects the image to be recognized of the current scene, and then calls the GPS sensor interface and the gravity sensor interface of the mobile terminal to obtain the GPS information of the current scene and the gravity information when the mobile terminal collects the image.

[0038] Step 2: The image to be recognized and the gravity information are packaged into a compressed file and sent to the server.

[0039] In order to reduce the amount of computation, before packing into a compressed file, the terminal perform...

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Abstract

The invention provides an outdoor scene recognition method fused with sensor information. By using the method, an outdoor scene can be quickly recognized and the recognition correct rate is high. The method comprises the specific steps of 1, a mobile terminal collects an image to be recognized of the current scene, and gravity information which is produced when the mobile terminal collects the image is acquired; 2, the image to be recognized and the gravity information are packed into a compressed file and the compressed file is sent to a server; 3, the server calculates the gravity direction theta g of the image to be recognized according to the gravity information in the compressed file; 4, lines in the image to be recognized are detected; 5, wrong lines in horizontal and vertical lines are removed; 6, horizontal vanishing points and vertical vanishing points are calculated; 7, perspective distortion correction is carried out on the image to be recognized; 8, image matching is carried out, and the most similar sample image is searched; and 9, the scene information corresponding to the sample image is returned to the mobile terminal, so as to realize scene recognition.

Description

technical field [0001] The invention belongs to the technical field of mobile augmented reality, and in particular relates to an outdoor scene recognition method for fusing sensor information. Background technique [0002] Augmented reality (AR), also known as mixed reality, is a technology that presents virtual objects in the real world, including two categories based on location and image recognition. Image recognition enables information superposition and location positioning to push relevant information. Image recognition is a hot topic in the research of content-based information retrieval, and it has a wide range of applications in the fields of remote sensing image processing, medical image processing and computer vision. [0003] As mobile terminal devices (like PDAs, smart phones, etc.) have more and more functions, and have embedded operating systems, acceleration sensors, gyroscopes, GPS positioning, video cameras, etc., they also have strong computing and proces...

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Application Information

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IPC IPC(8): G06K9/00G06T7/00
Inventor 桂振文刘越王涌天
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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