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Method and equipment for detecting fingers in images

An image, finger technology, applied in the field of gesture recognition, can solve the problems of blur, detection result dependence, difficult operation, etc.

Active Publication Date: 2013-01-02
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the detection result of the gesture recognition method in Patent Document 2 is highly dependent on line suppression, which is very difficult and blurry
In addition, the gesture recognition method will fail when the fingers are bent, or when too many arm parts are included in the segmented hand region

Method used

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  • Method and equipment for detecting fingers in images
  • Method and equipment for detecting fingers in images

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Embodiment Construction

[0034] A method and device for detecting a finger in an image according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0035] First, refer to figure 1 The method 100 for detecting a finger in an image according to an embodiment of the present invention will be described.

[0036] The method 100 for detecting a finger in an image according to an embodiment of the present invention starts at step S101.

[0037] In step S110 , the palm axis of the candidate finger passing through the palm of the candidate finger is extracted from the binary image generated from the image. The candidate finger-palm axis is a potential finger-palm axis connecting the fingertip, finger base and palm, which not only includes the real finger-palm axis from the human hand, but also includes objects similar to finger shapes. The central axis, such as the central axis of a human arm, the central axis of a rabbit's ear, and the central ax...

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Abstract

The invention provides a method and equipment for detecting fingers in images. The method includes: extracting a candidate finger-palm center axis traversing candidate fingers and a candidate palm from a binary image generated from an image; generating shape features of the candidate fingers and the candidate palm corresponding to the candidate finger-palm center axis; and judging whether the candidate finger-palm center axis stems from a human hand or not according to shape features of fingers and a palm of a human. By the method and the equipment for detecting the fingers in the images, the features with notable physical meanings are extracted from the images, and the fingers are detected by the aid of the extracted features, so that the fingers are detected accurately and efficiently.

Description

technical field [0001] The present invention relates to an image processing method and device, and more particularly to a method and device for detecting fingers in an image, and a method and device for gesture recognition in an image. Background technique [0002] At present, in the field of vision-based human-computer interaction, a variety of gesture recognition methods have been proposed, and most of these gesture recognition methods are based on finger detection. However, most of the existing finger detection methods tend to perform finger detection in a small local area (e.g., fingertip area), and the detected features often do not have clear physical characteristics, e.g., root point, palm point Important human hand shape information is ignored in the detection process. [0003] In Patent Document 1 (JP2008152622A), a method for interacting with fingers is provided, in which: firstly, after geometric color correction, the frame difference method is used to obtain the...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06T7/00
Inventor 章鹏李滔熊怀欣
Owner RICOH KK
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