Invention Grant
- Patent Title: Methods and apparatus for low resolution item identification
- Patent Title (中): 低分辨率物品识别的方法和装置
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Application No.: US13790042Application Date: 2013-03-08
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Publication No.: US08953062B2Publication Date: 2015-02-10
- Inventor: Sik Piu Kwan
- Applicant: Sik Piu Kwan
- Applicant Address: US GA Duluth
- Assignee: NCR Corporation
- Current Assignee: NCR Corporation
- Current Assignee Address: US GA Duluth
- Agent Harden E. Stevens, III
- Main IPC: H04N5/228
- IPC: H04N5/228 ; H04N5/225

Abstract:
Methods and apparatus are provided for low resolution item identification. An image of an unknown item is captured and quantized to greatly lower the resolution of the image. The quantized image data of the unknown item is compared to a plurality of the quantized image data for known items. The comparison includes using a signal-to-noise ratio calculated using the quantized image data for both the unknown and known items. A match is found when the calculated signal-to-noise ratio is above a predetermined threshold value.
Public/Granted literature
- US20140253750A1 Methods and Apparatus For Low Resolution Item Identification Public/Granted day:2014-09-11
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