Invention Grant
- Patent Title: Devices and methods for restoring low-resolution text images
- Patent Title (中): 用于恢复低分辨率文本图像的设备和方法
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Application No.: US12681454Application Date: 2008-10-06
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Publication No.: US08437551B2Publication Date: 2013-05-07
- Inventor: Joseph P. Noonan , Prabahan Basu
- Applicant: Joseph P. Noonan , Prabahan Basu
- Applicant Address: US MA Medford
- Assignee: Tufts University
- Current Assignee: Tufts University
- Current Assignee Address: US MA Medford
- Agency: Lathrop & Gage LLP
- International Application: PCT/US2008/078943 WO 20081006
- International Announcement: WO2009/046419 WO 20090409
- Main IPC: G06K9/34
- IPC: G06K9/34

Abstract:
A system that extracts text from an image includes a capture device that captures the image having a low resolution. An image segmentation subsystem partitions the image into image segments. An image restoration subsystem generates a resolution-expanded image from the image segments and negates degradation effects of the low-resolution image by transforming the image segments from a first domain to a second domain and deconvolving the transformed image segments in the second domain to determine parameters of the low-resolution image. A text recognition subsystem transforms the restored image data into computer readable text data based on the determined parameters.
Public/Granted literature
- US20100208996A1 DEVICES AND METHODS FOR RESTORING LOW-RESOLUTION TEXT IMAGES Public/Granted day:2010-08-19
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