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Method and device for generating a panoramic image from a video sequence

A video sequence, panoramic image technology, applied in image data processing, graphic image conversion, instruments, etc., can solve the problems of complex methods, low storage and energy capacity, and high computer requirements

Inactive Publication Date: 2009-05-06
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While very effective, these methods are quite complex and computer demanding
Therefore, these methods are difficult to implement on mobile devices such as mobile phones, key rings, and PDAs, which have low storage and energy capacities

Method used

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  • Method and device for generating a panoramic image from a video sequence
  • Method and device for generating a panoramic image from a video sequence
  • Method and device for generating a panoramic image from a video sequence

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Embodiment Construction

[0035] Taking the video sequence obtained by a camera shooting from left to right as an example, the method and device according to the present invention will be described. However, the solution according to the invention is also applicable to video sequences obtained from right-to-left direction by simple left / right mirroring of the copying and mixing regions defined below.

[0036] Referring to Fig. 1, an apparatus 2 for generating a panoramic image 3 is shown. The device 2 comprises an input 4 for receiving successive images I of a video sequence and an output 6 0 , I 1 ,...I k-1 , I k , I k+1 etc., the output 6 is used to send the generated panoramic image 3 to a presentation device such as a video camera or a display screen of a television. Image I of the video sequence 0 , I 1 Contains a matrix of pixels arranged in columns and rows. Each pixel of the image is defined by the reference system R x , R y The coordinates x, y in and the luma component and the two c...

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Abstract

The invention relates to a method and device for generating a panoramic image (3) from a video sequence composed of several consecutive images (I0, II, Ik-1, Ik). The method comprises the following successive steps: - receiving on an input (4) a current image (II, Ik) having a first and a second portions (40, 42); - if the pixel of the current image is associated to components resulting from a weighted sum of components stem from a number of images lower than a predefined threshold (N), computing components resulting from the weighted sum of components associated to the identified pixel of the current image (II, Ik) and of components associated to the corresponding pixel of a so-called previous mix image.

Description

technical field [0001] The invention relates to a method of generating a panoramic image from a video sequence, and a corresponding device implementing said generating method. Background technique [0002] Generally, panoramic images are obtained by arranging and merging images extracted from videos. To this end, mosaicing methods have been developed for arranging and fusing images. These methods work offline on a computer. While very effective, these methods are quite complex and computer demanding. Therefore, these methods are difficult to implement on mobile devices such as mobile phones, key rings and PDAs, which have low storage and energy capacities. [0003] Therefore, it is desirable to develop a new method for generating panoramic images that requires lower memory performance and energy. Contents of the invention [0004] Accordingly, it is an object of the present invention to provide a method for generating a panoramic image from a video sequence comprising ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40
CPCG06T3/4038
Inventor 斯特凡娜·奥贝热
Owner NXP BV