Beijing University of Technology

Siemens Aktiengesellschaft

Lenovo (beijing) Limited

Beijing Lenovo Software Ltd.

Apollo Intelligent Connectivity (beijing) Technology Co., Ltd.

Beijing Research Center for Information Technology in Agriculture

Wei Ma

Lijuan Duan

Jun Miao

Kun Wang

Jia Qi Li

Rui Zhang

Xing Hu

Yue Zhuo

Shuo Liu

Ji Tao

Zhiqiang Zhang

Xi Hu

Wei Zou

Jian Xing

Qing Gang Wang

Songlin Wang

Shuo Qiu

Xiao Yin Shao

Wen Gang Shi

Liqi Wang

Fangfang Liang

Yuanhua Qiao

Xiu Wang

The present application discloses a method, an apparatus for superimposing laser point clouds and a high-precision map and an electronic device, comprising: when superimposing the laser point clouds and the high-precision map for visualization, first performing dilution processing on non-road laser point clouds in the laser point clouds to be fused to obtain target non-road laser point clouds, which effectively reduces the amount of data of the laser point clouds to be fused; and performing segmentation processing on the map to be fused to obtain multi-level map data corresponding to the map to be fused, which effectively reduces the amount of data of the map to be fused. In this way, when superimposing the laser point clouds and the high-precision map for visualization, both non-road information may be visualized through the laser point clouds, and road information may be visualized through the high-precision map.

Method, apparatus for superimposing laser point clouds and high-precision map and electronic device

A display processing method and a display processing device are described. The method includes receiving a first gesture operation on a touch display region of an electronic device, when a first application interface of a first application installed in the electronic device is displayed in the touch display region; determining whether the first gesture operation satisfies a first predetermined condition or not; generating a first sub interface to be displayed in a first sub region of the touch display region and a second sub interface to be displayed in a second sub region of the touch display region when it is determined that the first gesture operation satisfies the first predetermined condition; and displaying the first sub interface in the first sub region, and displaying the second sub interface in the second sub region.

Controlling multitasking application displays using gestures

A method of establishing a 3D saliency model based on 3D contrast and depth weight, includes dividing left view of 3D image pair into multiple regions by super-pixel segmentation method, synthesizing a set of features with color and disparity information to describe each region, and using color compactness as weight of disparity in region feature component, calculating feature contrast of a region to surrounding regions; obtaining background prior on depth of disparity map, and improving depth saliency through combining the background prior and the color compactness; taking Gaussian distance between the depth saliency and regions as weight of feature contrast, obtaining initial 3D saliency by adding the weight of the feature contrast; enhancing the initial 3D saliency by 2D saliency and central bias weight.

Establishment method of 3D saliency model based on prior knowledge and depth weight

In a device for producing quantitative-diameter spray droplets of pesticide, a driving motor is controlled by a control center, the driving motor drives a lead screw, the lead screw drives a sliding device to achieve a designated accurate position on a guide track, and a piston moves slowly along with the sliding device to extrude chemicals in a droplet generator quantitatively, the chemicals extruded by the piston through the motion in a droplet cavity forms small single droplets through a guide pipe, the droplets with specific particle size are further generated by precisely controlling the extrusion amount of the chemicals, so that the device can be widely used for studies about diffusion of the droplets evaporation property of the single droplets and the like tested by water-sensitive paper, as well as tests of the properties of the pesticide, and further has broad application prospects.

Device and method for producing quantitative-diameter spray droplets of pesticide

The present invention discloses a method for detecting a salient region of a stereoscopic image, comprising: step 1) calculating flow information of each pixel separately with respect to a left-eye view and a right-eye view of the stereoscopic image; step 2) matching the flow information, to obtain a parallax map; step 3) selecting one of the left-eye view and the right-eye view, dividing it into T non-overlapping square image blocks; step 4) calculating a parallax effect value for each of the image blocks of the parallax map; step 5) for each of the image blocks of the selected one of the left-eye view and the right-eye view, calculating a central bias feature value and a spatial dissimilarity value, and multiplying the three values, to obtain a saliency value of the image block; and step 6) obtaining a saliency gray scale map of the stereoscopic image from saliency values of the image blocks. The present invention provides a method for extracting stereoscopic saliency based on parallax effects and spatial dissimilarity, acquiring depth information by utilizing parallax, and combining visual central bias feature and spatial dissimilarity to realize more accurate detection of a stereoscopic salient region.

Method for detecting salient region of stereoscopic image

A method for embedding and extracting a multi-scale space based watermark, comprises: constructing a pyramid structure of an original image by dividing each carrier image layer into M square carrier image blocks of the same size; constructing a multi-scale structure of a watermark image; embedding a watermark by embedding each watermark image into a corresponding carrier image block to obtain the original image containing the watermark; locating in the pyramid structure of the original image a target image from which a watermark will be extracted; extracting the watermark by obtaining an estimated watermark by means of the target image block and the reference image block; comparing watermarks by evaluating similarity between the estimated watermark and a watermark image to which the reference image block corresponds. Due to the multi-resolution block pyramid data structure in the present invention, a large scale attack is decomposed into a multi-level small scale attack.

Method for embedding and extracting multi-scale space based watermark

A method and an apparatus for quantitatively detecting the unbalanced state of a rotating shaft and a clamping state of a workpiece clamped to a shaft are disclosed by solving with a nonlinear multivariable method a Lagrange kinematics equation to determine from acquired position, velocity, acceleration and torque signals of the rotating shaft an unbalanced amplitude variable and an unbalanced angle variable of the rotating shaft, optionally both with and without a workpiece. The motor driving the shaft is energized with a combined S-shaped and sinusoidal velocity profile with a position profile component, a velocity profile component, and an acceleration profile component. The components are selected such that the motor speed during the accelerating and decelerating stages does not change abruptly.

Method and apparatus for quantitatively detecting unbalanced state and method for detecting clamping state of a workpiece

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Beijing, China

Wei Ma