Serial channel fusion pedestrian detection method based on binocular vision

A pedestrian detection and binocular vision technology, which is applied in image data processing, instrument, character and pattern recognition, etc., can solve the problems of weak discrimination of pedestrians, increase the pressure of model learning, and weak robustness. The effect of strong force, enhanced robustness, and improved accuracy

Inactive Publication Date: 2018-09-28
SUN YAT SEN UNIV
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Problems solved by technology

However, on the one hand, due to the weak robustness of RGB information to illumination and color changes, the pedestrian detection method based only on RGB images will face greater challenges in the case of drastic illumination changes and complex backgrounds.
On the other hand, although the edge or contour information extracted from the RGB image is robust to illumination and color changes, it is difficult to see some negative ...

Method used

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  • Serial channel fusion pedestrian detection method based on binocular vision
  • Serial channel fusion pedestrian detection method based on binocular vision
  • Serial channel fusion pedestrian detection method based on binocular vision

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Embodiment

[0040] Such as figure 1 As shown, this embodiment is a binocular vision-based serial channel fusion pedestrian detection method. Include steps:

[0041] 1. Binocular camera calibration preprocessing

[0042] Wide-angle lenses can capture a larger field of view, but its imaging is often distorted. In addition, due to errors in the manufacturing process, the two lenses in the binocular camera are often not guaranteed to be completely parallel, and the photos taken by them will be misaligned in the horizontal direction. These problems will bring difficulties to the generation of disparity maps, such as figure 2 As shown, it is necessary to calibrate the binocular camera. The so-called camera calibration refers to calculating the internal parameters of each camera and the relative position parameters between the two cameras by taking a series of pictures. Specifically, this embodiment adopts the following method:

[0043] i) Make a 12×12 black and white checkerboard, and tak...

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Abstract

The invention discloses a serial channel fusion pedestrian detection method based on binocular vision. According to the method, a parallax image is generated according to a binocular RGB image, a convolutional neural network is constructed, an RGB image channel and a parallax image channel are connected in series to serve as input of the convolutional neural network, the complementary relation between the RGB image and the parallax image is learnt, a part with a predicted value greater than a set value is selected from a detection result output by the convolutional neural network, non-maximumsuppression is performed on the part, and a final pedestrian position is obtained. Through the method, since the RGB color image has rich color information and the parallax image is invariant to illumination, pedestrian detection can be more robust and accurate by combining the RGB image and the parallax image.

Description

technical field [0001] The invention relates to the research field of pedestrian detection methods, in particular to a binocular vision-based serial channel fusion pedestrian detection method. Background technique [0002] Pedestrian detection is to locate the position of pedestrians from a given image. People are the main body of society, so pedestrian detection is also the most common task among many target detection tasks. At the same time, pedestrian detection is a basic part of advanced visual tasks such as pedestrian tracking and pedestrian re-identification. The development of pedestrian detection methods is of great significance to the development of applications such as cross-camera pedestrian tracking and pedestrian search. For example, based on a good pedestrian detection result, we can track the position of the pedestrian. In addition, through the pedestrian re-identification technology, we can identify where the pedestrian appears in another camera, so as to re...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/46G06K9/62G06T7/80
CPCG06T7/80G06T2207/20228G06T2207/20221G06T2207/10024G06T2207/20084G06T2207/20081G06T2207/30196G06V40/103G06V10/44G06V10/56G06F18/24G06F18/25
Inventor 赖剑煌陆瑞智谢晓华
Owner SUN YAT SEN UNIV
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