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70results about How to "Improve image recognition" patented technology

Intelligent luggage barrow of airport

The invention discloses an intelligent luggage barrow of an airport. The intelligent luggage barrow is characterized in comprising a main body frame, a control panel, a deep visual identification device, a control box and a chassis driving device, wherein the main body frame comprises a luggage load bearing device and a functional frame; the functional frame comprises two supporting rods and an advertising space panel arranged between the two supporting rods; a small part luggage frame is arranged between the supporting rods on the top; two sides of the top end of each supporting rod are provided with panel supporting frames; the control panel is embedded into the panel supporting frames on two sides and is fixed by bolts; the deep visual identification device is fixed on a rear plate of the small part luggage frame; the chassis driving device is arranged on a wheel axle, and the supporting rods above the chassis driving device are riveted with the control box; a control system is integrated in the control box. According to the intelligent luggage barrow, functions including autonomous navigation, intelligent following, voice interaction, service consultation, on-line entertainment, convenient shopping, automatic weighting, forbidden article detection, automatic conversation, one-key recovery, kid missing prevention, automatic printing of boarding checks and the like are combined, and the intelligent luggage barrow of the airport can lead intelligent, fashionable, relaxed and convenient brand-new airport service experience.
Owner:四川西部动力机器人科技有限公司

Nonnegative matrix factorization method based on discriminative orthogonal subspace constraint

ActiveCN108416374AImprove generalization abilityGood projection dimensionality reduction abilityCharacter and pattern recognitionHat matrixAlgorithm
The invention discloses a nonnegative matrix factorization method based on a discriminative orthogonal subspace constraint. The method mainly comprises the following steps of (1) stretching an image in a training sample set into vectors to compose a training data matrix Xtrain, then factorizing the Xtrain in a nonnegative matrix factorization framework based on the discriminative orthogonal subspace constraint, and directly exerting a discriminative constraint item based on within-class and between-class associations to the basis matrix; (2) constructing a projection matrix W by use of the learned basis matrix U*, calculating projection expression of the training data Xtrain and test data Xtest in the projection matrix W, and performing an image recognition experiment with a nearest neighbor classifier; and (3) calculating the image identification precision. According to the nonnegative matrix factorization method based on the discriminative orthogonal subspace constraint, the discriminative structure information inside the data are explored and utilized, the discriminative constraint directly exerted to the basis matrix in the algorithm enhances the generalization performance of the algorithm and improves the image identification effect; and the method can be widely applied to the field of data mining and data analysis.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI

Multi-camera high-precision pedestrian re-identification method for supervised scenes in same camera

The invention discloses a multi-camera high-precision pedestrian re-identification method for supervised scenes in the same camera. The method comprises the steps of photograhing by adopting multiplecameras in the same pedestrian scene, selecting a basic network model, modifying after pre-training, acquiring a pedestrian picture set to be trained, establishing pedestrian memory features for eachcamera, and initializing the pedestrian memory features; based on an existing to-be-trained pedestrian picture set, performing training optimization and supervision in the same camera stage on the basic network model; obtaining a pedestrian pseudo-label by combining the trained pedestrian memory features with a clustering method, and performing fine tuning training on the basic network model by using the pedestrian pseudo-label; and performing cross-camera pedestrian re-identification application on the basic network model obtained by training. According to the method, the recognition performance can be effectively improved only by marking the pictures in the same camera in the scene, the re-recognition accuracy equivalent to that in a fully-supervised scene is achieved, and the pedestrianre-recognition accuracy equivalent to that in the fully-supervised scene is achieved.
Owner:ZHEJIANG UNIV

Supervised image classification method based on self-paced constraint mechanism

The invention discloses a supervised image classification method based on a self-paced constraint mechanism. The method comprises the following steps: dividing difficult types of training samples; establishing a sparse representation model, and substituting samples into the sparse representation model for training; obtaining an image classification model and a prediction model; constructing a category decision-making device, wherein the training sample difficult type comprises a training easy sample and a training difficult sample, and the division training sample difficultly-easy types are divided by adopting a self-step constraint matrix. According to the invention, the training samples are divided through the self-paced constraint matrix; the easy training sample and the difficult training sample are sequentially substituted into a defined sparse representation model for continuous training; a specific self-step constrained image classification scheme can be formed, more judgment information can be conveniently utilized, robustness is achieved on sample noise, and therefore the problem that a supervised dictionary learning mechanism is not suitable for complex samples containingnoise and huge intra-class changes can be solved, and the image recognition effect is improved.
Owner:JIANGNAN UNIV

Semi-supervised semantic segmentation model training method, semi-supervised semantic segmentation model identification method and semi-supervised semantic segmentation model identification device

The embodiment of the invention provides a semi-supervised semantic segmentation model training method, a semi-supervised semantic segmentation model identification method and a semi-supervised semantic segmentation model identification device. The semi-supervised semantic segmentation model training method of the embodiment comprising obtaining first supervised data obtained by manually annotating a to-be-annotated object in a first image, and then obtaining a full-supervised semantic segmentation model with a relatively high recognition rate of the to-be-annotated object through training ofthe first supervised data; labeling the to-be-labeled object in the second image which is not manually labeled by utilizing the fully-supervised semantic segmentation model to obtain second superviseddata; training a semi-supervised semantic segmentation model by utilizing the first supervised data obtained through manual annotation and the second supervised data obtained through full-supervisedsemantic segmentation model annotation, and identifying the first image, the second image and the random disturbance item by utilizing the semi-supervised semantic segmentation model to obtain third supervised data; and finally, training the semi-supervised semantic segmentation model again through the first supervised data, the second supervised data and the third supervised data.
Owner:ALIPAY (HANGZHOU) INFORMATION TECH CO LTD

Device, system and method for drawing landmark map based on binocular vision

The embodiment of the invention provides a device, system and method for drawing a landmark map based on binocular vision. The device comprises a first lens, a first prism, a second prism, an image sensor, an image processing module and a GNSS differential positioning module. The first lens and the first prism are symmetrically arranged along the central axis of the second prism, wherein the first lens and the first prism located on one side of the second prism sequentially form a left light path, and the first lens and the first prism located on the other side of the second prism sequentially form a right light path. The light along the left light path and the light along the right light path are reflected to the image sensor through the second prism. The image sensor is used for obtaining an image collected by a binocular lens and transmitting the image to the image processing module. The image processing module is used for analyzing and processing image data. The GNSS differential positioning module is used for obtaining the coordinate of the original point of the lens coordinate system in the world coordinate system through GNSS differential positioning. The requirement on a processor is reduced, the precision is high, and the cost is low.
Owner:CHINA MOBILE M2M +1
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