Duplex document copying system and method thereof
AssigneeAvision Inc.
InventorChen-Chang Li
Life of this patent
Estimating the term…
Abstract
Disclosed are a duplex document copying system and a method thereof applied to a manual operation for a document. A scanning device is connected to a processing device. The processing device stores one or more block pixel thresholds. After the scanning device obtains first scanning data and second scanning data from scanning the document, the processing device compares pixel difference information between the first scanning data and the second scanning data with the one or more block pixel thresholds to calculate a similarity between the first scanning data and the second scanning data so as to avoid repeated scans. In this way, it avoids the manual errors and outputting the repeatedly scanned document, thereby improving overall work efficiency and saving resources.
Claims16
A duplex document copying system applied to a manual operation for a document, comprising:
- a scanning device configured to obtain first scanning data and second scanning data from scanning the document;
- and
- a processing device connected to the scanning device and configured to store one or more block pixel thresholds;
- wherein the processing device compares pixel difference information between the first scanning data and the second scanning data with the one or more block pixel thresholds to determine a similarity between the first scanning data and the second scanning data to avoid repeated scans;
- wherein the processing device executes a pixel similarity algorithm on the first scanning data and the second scanning data to obtain the pixel difference information;
- wherein the processing device comprises:
- an input circuit configured to receive the first scanning data and the second scanning data;
- a memory configured to store the one or more block pixel thresholds and temporarily store the first scanning data and the second scanning data;
- and
- a processor connected to the input circuit and the memory, and configured to obtain first pixel information of a first designated block and second pixel information of a second designated block according to the first designated block of the first scanning data and the second designated block of the second scanning data, and obtain the pixel difference information between the first pixel information and the second pixel information according to the first pixel information and the second pixel information.
A duplex document copying method applied to a manual operation for a document, wherein a duplex document copying system comprises a scanning device and a processing device, the scanning device obtains first scanning data and second scanning data from scanning the document, the processing device stores one or more block pixel thresholds, and the duplex document copying method executed by the processing device comprises the following steps:
- comparing pixel difference information between the first scanning data and the second scanning data with the one or more block pixel thresholds to determine a similarity between the first scanning data and the second scanning data to avoid repeated scans;
- wherein the step of comparing the pixel difference information between the first scanning data and the second scanning data with the one or more block pixel thresholds to determine the similarity between the first scanning data and the second scanning data to avoid repeated scans comprises the following sub-step:
- executing a pixel similarity algorithm on the first scanning data and the second scanning data to obtain the pixel difference information;
- wherein the sub-step of executing the pixel similarity algorithm on the first scanning data and the second scanning data to obtain the pixel difference information comprises the following sub-steps:
- obtaining first pixel information and second pixel information according to the first scanning data and the second scanning data;
- correspondingly obtaining the first pixel information of a first designated block and the second pixel information of a second designated block according to the first designated block of the first scanning data and the second designated block of the second scanning data;
- and
- executing the pixel similarity algorithm on the first pixel information and the second pixel information to obtain the pixel difference information between the first pixel information and the second pixel information.
Dependencies are inferred from the claim text.