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Methods for processing images

An image and key point technology, applied in the field of computer vision, can solve the problems of performance degradation, tree building consumes too many bits, etc., and achieve the effect of improving compression rate, efficient analysis and representation, and realizing compression rate

Active Publication Date: 2018-02-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Quadtrees provide a fairly efficient representation when the matrix is ​​dense, but if the matrix is ​​very sparse, as in the full-resolution case, building the tree consumes too many bits, resulting in poor performance

Method used

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  • Methods for processing images
  • Methods for processing images
  • Methods for processing images

Examples

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Embodiment Construction

[0101] figure 1 Shown is a schematic diagram of an image processing method 100 according to an embodiment. The image processing method 100 includes: providing (101) a keypoint set from an image; describing (103) position information of the keypoint set in the form of a binary matrix; and scanning (105) the binary matrix according to a predetermined order, thereby creating a position of the keypoint set A new representation of information. In an implementation form, the form of the new representation of the position information of the keypoint set is another binary matrix.

[0102] figure 2 Shown is a schematic diagram of a location information compression method 201 according to an implementation form. The image compression method 201 includes generating (200) a histogram and a histogram count, compressing (210) the histogram, compressing (220) the histogram count, and creating (240) an encoded bitstream from the compressed descriptor 230. Histogram based on Figure 16 ...

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Abstract

The invention relates to a method for processing an image, said method comprising: providing (101) a set of keypoints from said image; describing (103) positional information of said set of keypoints in binary matrix form; and according to a predetermined The binary matrix is ​​scanned (105) sequentially, thereby creating a new representation of the location information of the set of keypoints.

Description

technical field [0001] The present invention relates to image processing techniques in the field of computer vision, and in particular to the subject commonly known as visual search or augmented reality. In visual search and augmented reality applications, information extracted from an image or image sequence is sent to a server where it is compared with information extracted from a database of reference images or image sequences. A reference image or sequence of images represents a model of the object to be recognized. In this context, the invention relates to the compression of information extracted from an image or sequence of images sent to a server, in particular to the compression of the positions of points of interest extracted from an image or sequence of images. Background technique [0002] Visual Search (VS) is an automated system that identifies an object or objects depicted in an image or sequence of images by analyzing only the visible portion of the image or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/136H04N19/176H04N19/132H04N19/129G06K9/46
CPCG06T9/00H04N19/176H04N19/129H04N19/132H04N19/136G06F16/583G06V10/462H04N19/20H04N19/467
Inventor 基奥万尼·科达拉爱默德·鲍阿齐齐卢卡斯·康德拉德
Owner HUAWEI TECH CO LTD
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