Method for recovering and reconsisting super-resolution image from low-resolution compression image

A low-resolution image, high-resolution image technology, applied in the field of restoration and/or reconstruction of super-resolution images, can solve the problems of unsuitable unmanned surveillance systems and high cost of HR cameras

Inactive Publication Date: 2005-02-09
SUNGJIN C&C +1
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  • Claims
  • Application Information

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Problems solved by technology

However, this method is not suitable for the practical application of unmanned surveillance system in the sense that the cost of purchasing the HR cameras required in such unmanned surveillance system is too high

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  • Method for recovering and reconsisting super-resolution image from low-resolution compression image
  • Method for recovering and reconsisting super-resolution image from low-resolution compression image
  • Method for recovering and reconsisting super-resolution image from low-resolution compression image

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Embodiment Construction

[0031] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0032] CODEC is an encoding and decoding device in a digital video recorder, which compresses and stores the digital video sequence transmitted from the image capture device. However, it should be noted that during the quantization process of the above-mentioned compression on the digital video sequence, a large number of high-frequency components in the original image may be lost.

[0033] Since the lost high-frequency signal usually has detailed important information of the original image (for example, the license plate of the suspicious car, the facial features of the suspect, appearance, etc.), the purpose of the present invention is to provide a method for recovering these high-frequency components.

[0034] The present invention provides a solution for recovering high resolution (HR or SR) image...

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Abstract

Provided is a method of restoring and / or reconstructing a super-resolution image from low-resolution images compressed in a digital video recorder (DVR) environment. The present invention can remove a blur of a video sequence, caused by optical limitations due to a miniaturized camera of a digital video recorder monitoring system, a limitation of spatial resolution due to an insufficient number of pixels of a CCD / CMOS image sensor, and noises generated during image compression, transmission and storing processes, to restore high-frequency components of low-resolution images (for example, the face and appearance of a suspect or numbers of a number plate) to reconstruct a super-resolution image. Consequently, an interest part of a low-resolution image stored in the digital video recorder can be magnified to a high-resolution image later, and the effect of an expensive high-performance camera can be obtained from an inexpensive low-performance camera.

Description

[0001] Cross References to Related Applications [0002] This application is based on Korean Patent Application No.2003-42350, which claims priority according to the Paris Convention. The filing date of said Korean Patent Application is June 27, 2003. For the purpose of the present invention, its contents are hereby summarized References. field of invention [0003] The present invention relates to methods of restoring and / or reconstructing super-resolution (SR) images, and more particularly, the present invention relates to restoring and / or reconstructing SR from low-resolution (LR) images compressed in a digital video recorder (DVR) environment image method. Background technique [0004] In most electronic imaging applications, images with high resolution (HR) are desired and required. HR means that the pixel density in the image is high, so HR images can provide more details, which can be very critical in many different applications. For example, HR medical images are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40G03C1/725G03C1/73G03C1/735G06T5/00G06T5/50G11B20/10H04N5/76H04N5/93H04N7/18H04N19/59H04N19/60H04N19/625H04N19/85H04N19/86
CPCG06T3/4069G06T3/4084H04N7/18
Inventor 林燐建姜文基朴成哲
Owner SUNGJIN C&C
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