Alibaba Group Holding Limited

Banma Zhixing Network (hongkong) Co., Limited

Rufeng Chu

Lun Zhang

Shiqi Zhou

Gang Cheng

Chunhui Zhang

Rong Liu

Yeming Xiao

Dong Yi

Embodiments of the present application relate to a method, apparatus, and system for detecting a specified image identifier. The method includes retrieving a target image to be detected from a predetermined area, binarizing the target image to be detected to obtain a target binary image to be detected, calibrating connected domains of the target binary image to be detected, successively retrieving image features of candidate connected domains, and comparing the image features corresponding to the candidate connected domains to image features of a standard specified identifier image, wherein the candidate connected domains are determined based at least in part on the calibration of the connected domains, and determining a candidate connected domain as the location of the specified identifier image based at least in part on the comparison of the image features corresponding to the candidate connected domains to image features of the standard specified identifier image.

Detecting specified image identifiers on objects

Embodiments of the present invention provide an audio information retrieval method and device. The method includes acquiring a spectrogram of an audio clip, extracting a local feature of at least one energy extreme point in the spectrogram to use as a local feature sequence of the audio clip, and conducting an audio information retrieval according to the local feature sequence of the audio clip to acquire audio information. Embodiments of the present invention reduce the probability of a missed match (e.g., false negative) and improve the accuracy of audio information retrieval.

Audio information retrieval method and device

An identification code-based three-dimensional interactive technique includes acquiring an image including an identification-coded real object, the image being taken by video-capable equipment, identifying an identification code from the identification-coded real object, obtaining object information corresponding to the identification code, acquiring a reference image associated with the identification code and feature points of the reference image, obtaining a position, an orientation, or a combination thereof on the video-capable equipment relative to the identification-coded real object based on the reference image and the feature points of the reference image, and conducting a three-dimensional interaction based on the position, the orientation, or a combination thereof of the video-capable equipment relative to the identification-coded real object and the object information corresponding to the identification code.

Information processing method and system

Determining a label from an image is disclosed, including: obtaining an image; determining a first portion of the image associated with a special mark; determining a second portion of the image associated with a label based at least in part on the first portion of the image associated with the special mark; and applying character recognition to the second portion of the image associated with the label to determine a value associated with the label.

Detecting a label from an image

A method of extracting particular information in a standard card is disclosed herein. The method includes: acquiring a card image of a standard card having particular information to be extracted; identifying an image region containing the particular information in the card image; and extracting and outputting the image region as an independent image. Thus, an image related to the part of the particular information only can be obtained from the standard card conveniently, quickly and accurately, thereby improving the working efficiency. In addition, the present disclosure further provides an apparatus of extracting particular information in a standard card and a method of inputting particular information of a standard card in a mobile terminal.

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Beijing, China

Rufeng Chu