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Vehicle Appearance Feature Recognition and Vehicle Retrieval Method, Device, Storage Medium, Electronic Equipment

A technology for appearance and vehicles, applied in character and pattern recognition, digital data information retrieval, electronic digital data processing, etc., can solve problems such as subtle changes in difficult vehicles

Active Publication Date: 2020-02-21
BEIJING SENSETIME TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vehicle appearance features directly extracted from the full image are difficult to describe the subtle changes of the vehicle

Method used

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  • Vehicle Appearance Feature Recognition and Vehicle Retrieval Method, Device, Storage Medium, Electronic Equipment
  • Vehicle Appearance Feature Recognition and Vehicle Retrieval Method, Device, Storage Medium, Electronic Equipment
  • Vehicle Appearance Feature Recognition and Vehicle Retrieval Method, Device, Storage Medium, Electronic Equipment

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0065] figure 1 is a flow chart of a method for recognizing vehicle appearance features according to Embodiment 1 of the present invention.

[0066] refer to figure 1 , in step S101, a plurality of region segmentation results of the target vehicle are obtained from the image to be recognized.

[0067]In this embodiment, in terms of the content contained in the image, the image to be recognized may be an image including a part of the target vehicle or an image including the entire target vehicle. In terms of image types, the image to be recognized may be a captured still image, or a video image in a video frame sequence, or may be a synthesized image or the like. The multiple region segmentation results respectively correspond to regions of different orientations of the target vehicle. Specifically, the plurality of region segmentation results include segmentation results of the front, rear, left, and right sides of the target vehicle. Certainly, in the embodiment of the pr...

Embodiment 2

[0075] figure 2 is a flow chart of a method for recognizing vehicle appearance features according to Embodiment 2 of the present invention.

[0076] refer to figure 2 , in step S201, a plurality of region segmentation results of the target vehicle are obtained from the image to be recognized through the first neural network for region extraction.

[0077] Wherein, the first neural network may be any appropriate neural network capable of region extraction or target object recognition, including but not limited to convolutional neural network, reinforcement learning neural network, generation network in adversarial neural network, and the like. The setting of the specific structure in the neural network can be appropriately set by those skilled in the art according to actual needs, such as the number of convolutional layers, the size of the convolution kernel, the number of channels, etc., which are not limited in the embodiment of the present invention. In the embodiment of...

Embodiment 3

[0103] Figure 7 It is a flow chart of the vehicle retrieval method according to the third embodiment of the present invention.

[0104] refer to Figure 7 , in step S301, the appearance characteristic data of the target vehicle in the image to be retrieved is obtained by the recognition method of the appearance characteristic of the vehicle.

[0105] In this embodiment, the appearance feature data of the target vehicle in the image to be retrieved can be acquired through the recognition method of the vehicle appearance feature provided in the first embodiment or the second embodiment above. Wherein, the appearance feature data may be data represented by a vector. In terms of content contained in the image, the image to be retrieved may be an image including a part of the target vehicle or an image including the entire target vehicle. In terms of image types, the image to be retrieved may be a captured still image, or a video image in a sequence of video frames, or may be a...

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Abstract

Embodiments of the present invention provide a vehicle appearance feature recognition and vehicle retrieval method, device, storage medium, and electronic equipment. Wherein, the identification method of the vehicle appearance features includes: obtaining a plurality of region segmentation results of the target vehicle from the image to be identified; based on the plurality of area segmentation results, extracting global feature data and multiple regional feature data; the global feature data and a plurality of regional feature data are fused to obtain the appearance feature data of the target vehicle. Through the embodiment of the present invention, the appearance of the vehicle can be described more accurately. In addition, the vehicle appearance features recognized in this embodiment can directly compare the vehicle appearance features in different vehicle images, which solves the problem that different areas of different vehicle images cannot be compared.

Description

technical field [0001] Embodiments of the present invention relate to artificial intelligence technology, and in particular to a method, device, storage medium and electronic equipment for identifying vehicle appearance features, and a vehicle retrieval method, device, storage medium and electronic equipment. Background technique [0002] The vehicle retrieval task refers to a vehicle image to be queried, and all images of vehicles in the vehicle image are retrieved in a large-scale vehicle image database. In the existing technology, two kinds of information are mainly considered to solve this technical problem, one is the license plate information, if the license plate number of the vehicle can be extracted from the vehicle picture, it is very useful for vehicle retrieval, and the other is the vehicle appearance information, extract the appearance features of the vehicle for each vehicle picture, and use the appearance features of the vehicle to distinguish different vehicl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/32G06K9/34G06K9/46G06F16/783G06V10/764
CPCG06F16/783G06V20/62G06V10/267G06V10/44G06V2201/08G06V20/54G06V10/454G06V10/82G06V10/764
Inventor 伊帅王重道唐路明闫俊杰王晓刚
Owner BEIJING SENSETIME TECH DEV CO LTD