Beijing Baidu Netcom Science and Technology Co., Ltd.

Beijing Baidu Netcom Science Technology Co., Ltd

Fengze Han

Yang Yang

Pengbin Yang

Caimao Yuan

Fei Ni

Wenlong Chen

Jianxu Zhang

An image processing method, apparatus, and electronic device relate to the technical field of image processing. In the method, an initial image is acquired; and then a connected region in the initial image is acquired, where the connected region is a region composed of pixels having pixel values within a target threshold range in the initial image. In addition, a region of interest in the initial image is acquired according to the connected region, and the region of interest is preprocessed to obtain a target image. By extracting the region of interest in the initial image, and only preprocessing the region of interest, the resource expenditure during image preprocessing can be reduced, and the preprocessing efficiency can be improved.

Image processing method, apparatus, and electronic device

The present application discloses a method and an apparatus for calibrating external parameters of an image acquisition device, a device and a storage medium, and relates to the technical field of vehicle positioning. The specific implementation solution is as follows: acquiring an image captured by the image acquisition device; determining a plurality of marking points on a calibration plate in the image; determining a first conversion matrix based on coordinates of each of the marking points in the image pixel coordinate system and the calibration plate coordinate system; determining a second conversion matrix based on coordinates of at least one wheel grounding point of the vehicle in the calibration plate coordinate system and the vehicle body coordinate system; and determining external parameters of the image acquisition device by using the first conversion matrix and the second conversion matrix.

Method and apparatus for calibrating external parameters of image acquisition device, device and storage medium

The present application discloses a method and an apparatus for processing map data, which relate to autonomous driving technologies in the field of data processing. The specific implementation is that: a controlling unit inputs initial positioning data collected by a data collecting unit to a data fusing unit to obtain fused positioning data, where the initial positioning data and the fused positioning data are data in a first coordinate system; the controlling unit obtains target positioning data according to the fused positioning data, where the target positioning data is data in a second coordinate system, and the second coordinate system is a coordinate system obtained by offsetting the first coordinate system; and the controlling unit performs a positioning operation on the target positioning data through at least one positioning unit, to determine a position of a vehicle corresponding to an autonomous driving system.

Method and apparatus for processing map data

A lane line determination method and apparatus, a lane line positioning accuracy evaluation method and apparatus, a device and a storage medium are provided, which are related to a field of image processing, and particularly to fields of autonomous driving, intelligent transportation, computer vision and the like. The specific implementation is: determining a line in a received road image; screening pixels forming the line and determining pixels forming a lane line; and fitting the pixels forming the lane line to obtain the lane line. According to the technology of the present disclosure, the disadvantages of manual labeling can be overcome, and the lane line in the image collected by image acquisition device can be automatically recognized using an image recognition method, thereby improving the automation degree of lane labeling.

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Beijing, China

Fengze Han