Baidu Online Network Technology (beijing) Co., Ltd.

Zhongqin Wu

Yingchao Li

Yuan Lin

Chen Zhao

Yongjie Zhang

Sili Chen

Qian Ying

Yuhua Dong

Yijie Yan

Binbin Zheng

Errui Ding

Miao Yao

Yajie Du

Hui Qiao

Xiaoyin Zhang

Min Sheng

Nan Wei

Zuncheng Yang

A monocular vision tracking method, apparatus, and a non-volatile computer-readable storage medium are provided. The method includes: acquiring a first camera pose by using a wireless tracker; capturing calibration board images by using a camera, and selecting a set of images from the captured calibration board images according to image sharpness and camera pose difference; calculating a second camera pose in the camera calibration algorithm according to the selected set of images; obtaining a conversion parameter between the first camera pose and the second camera pose; and converting a first capturing pose into a second capturing pose by means of the conversion parameter when a scenario is captured, wherein the first capturing pose is acquired by the wireless tracker and the second capturing pose corresponds to a pose of the camera.

Monocular vision tracking method, apparatus and non-transitory computer-readable storage medium

An augmented reality positioning method and apparatus for location-based service LBS, comprising: a first terminal obtains image information captured by a camera, and receives AR information transmitted by a server; the AR information is generated according to location information of a second terminal; the first terminal displays the image information drawn with the AR information. The apparatus avoids the following drawbacks in the prior art: location inaccuracy; when the terminals are close to each other, positioning cannot be performed on the interfaces of the terminals; if the environment is complicated, it is difficult for the user to quickly perform accurate and direct judgment, and even impossible to obtain more accurate mutual suggestive location information. The apparatus enables the user to perform quick positioning judgment making it possible to directly combine more interactable content or presented information with a real scenario using mobile terminals such as mobile phones without extra hardware.

Augmented reality positioning method and apparatus for location-based service LBS

A method for determining an object comprises: determining a reference representation based on positions of a first reference point and a second reference point of a first object in a reference image, which indicates a distance and a relative direction between the first and second reference points in the reference image; determining a detection representation based on positions of the first and second reference points in a detection frame including the first object in a video, which indicates a distance and a relative direction between the first and second reference points in the detection frame; determining rotation parameters associated with a first predetermined point and a second predetermined point in a second object associated with the first object based on the reference representation and the detection representation; and adjusting a target representation between the first and second predetermined points in the second object based on the rotation parameter.

Method, apparatus and device for determining an object, and storage medium for the same

A monocular vision tracking method, apparatus and a non-volatile computer-readable storage medium are provided. The method includes: acquiring a first camera pose by using a wireless tracker; capturing calibration board images by using a camera, and calculating a second camera pose according to the captured calibration board images; obtaining a conversion parameter between the first camera pose and the second camera pose; and converting a first capturing pose into a second capturing pose by means of the conversion parameter when a scenario is captured, wherein the first capturing pose is acquired by the wireless tracker and the second capturing pose corresponds to a pose of the camera; wherein a relative position between the wireless tracker and the camera remains unchanged, in processes of acquiring the first camera pose, capturing the calibration board images and capturing the scenario.

Monocular vision tracking method, apparatus and non-volatile computer-readable storage medium

The present disclosure provides an image processing method. The method includes: detecting at least one first feature object of an image to be processed, to obtain a name and position of each first feature object in the image; according to the name and position of the first feature object, and a preset strategy for loading a dynamic effect, selecting, from the at least one first feature object, a feature object to which a dynamic effect is to be loaded, as a second feature object; and according to the preset strategy for loading a dynamic effect, rendering the second feature object with an Augmented Reality (AR) dynamic effect, and obtaining an image with the AR dynamic effect. The present disclosure further provides an image processing apparatus, a device and a computer readable storage medium.

Image processing method and apparatus based on augmented reality, and computer readable storage medium

Embodiments of the disclosure disclose a system, method and apparatus for displaying information. A specific embodiment of the method comprises: acquiring currently displayed information, the currently displayed information including an image; associating an augmented reality AR display identifier with the currently displayed information, in response to a preset object in a preset object set existing in the image; displaying the image associated with an AR play identifier, in response to receiving a request for browsing the currently displayed information associated with the AR display identifier from a user; acquiring AR image data of the preset object existing in the image from a server, in response to receiving a request for browsing the image associated with the AR play identifier from the user; and displaying an AR image of the preset object existing in the image based on the AR image data of the preset object existing in the image.

System, method and apparatus for displaying information

The present disclosure discloses a method and apparatus for constructing a three-dimensional map. A specific embodiment of the method includes: acquiring multiple frames of a monocular image containing a target object collected by a monocular camera, and constructing a three-dimensional map containing the target object and other objects in the monocular image based on the monocular image; determining an absolute scale of the target object, and determining a ratio of a relative scale corresponding to the target object to the absolute scale; and adjusting a scale of each object in the three-dimensional map to obtain a three-dimensional map meeting a preset condition based on the ratio. The method and apparatus provided by the present disclosure achieves the construction of a world coordinate system with absolute scales in a three-dimensional map constructed based on a monocular image.

Method and apparatus for constructing three-dimensional map

The present disclosure discloses a display method and apparatus. A specific implementation of the method comprises: acquiring an experimental environment image; presenting, on the experimental instrument image using an augmented reality approach, a status image indicating an experimental status of an experimental instrument when performing the target experiment; in response to detecting a gesture operation of a user, determining experiment effect information of an experiment operation based on a corresponding relation between the gesture operation and the experiment operation of the target experiment, wherein the experiment effect information comprises an experiment effect image; and displaying, using the augmented reality approach, the experiment effect image in the experimental environment image having presented the status image. This implementation may superpose a virtual status image and an experiment effect image on a reality environment image, thereby enhancing the display fidelity.

Display method and apparatus

A method and apparatus for generating image information. A specific embodiment of the method includes: acquiring a rotation angle and a scaling of a target image relative to a reference image, and acquiring an intrinsic parameter of a video camera collecting the reference image; generating a projective transformation matrix based on the rotation angle, the scaling and the intrinsic parameter; generating a coordinate offset of the each neighborhood pixel of the feature point in the reference image; generating, based on a coordinate of the feature point in the reference image, the coordinate offset of the each neighborhood pixel of the feature point in the reference image and the projective transformation matrix, coordinates of the each neighborhood pixel of the feature point in the reference image; and generating a feature point descriptor of the feature point.

Method and apparatus for generating image information

The present invention proposes a method and apparatus for prompting based on smart glasses. The method comprises: acquiring current scenario information; determining prompt information corresponding to the current scenario information according to a preconfigured information base, the information base storing at least one kind of scenario information and prompt information corresponding to each kind of scenario information; and displaying the prompt information by means of the smart glasses. The method can facilitate the acquisition of prompt information corresponding to a scenario by a user.

Growing community of inventors

Beijing, China

Zhongqin Wu