# US 9,436,851 B1 · Geometric encrypted coded image

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- Number: US 9,436,851 B1
- Document ID: US9436851B1
- Status: Granted
- Kind: B1
- Application number: 13/903,620
- Filed: 2013-05-28
- Granted: 2016-09-06
- Earliest claimed: 2013-05-07
- Assignees: AIC Innovations Group, Inc.
- Applicants: AIC Innovations Group, Inc.
- Inventors: Yaniv Ganor; Maurice Lepouttre
- Web page: https://patentgrep.com/patent/US9436851B1

## CPC

- G06K 5/00: Methods or arrangements for verifying the correctness of markings on a record carrier; Column detection devices
- G06K 7/1417: {2D bar codes}
- G06K 19/06037: {multi-dimensional coding}
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS

## Abstract

A method, system and computer program for defining a geometric code is provided. The method for generating a geometric code includes the steps of defining a first geometric shape, defining a size of a second geometric shape as a change in size from the first geometric shape, defining a position of the second geometric shape as a change in position from the first geometric shape, and displaying the first geometric shape and the second geometric shape. A system for imaging the defined geometric code includes a processor performing the steps of segmenting the imaged code, partitioning the segmented imaged code, determining a gray level of each portion of the partitioned segmented imaged code, and determining a code represented by each segmented portion of the partitioned segmented imaged code.

## Claims

### Claim 1

A system for reading a code from an object, comprising:
an imaging apparatus for imaging a code printed to an object, the code being defined by defining a first geometric shape, defining a size of a second geometric shape as a reduction in size from the first geometric shape, defining a position of the second geometric shape within the first geometric shape as a change in position from the first geometric shape, defining a size of a third geometric shape as a reduction in size from the second geometric shape, defining a position of the third geometric shape within the second geometric shape as a change in position from the second geometric shape;
a processor for processing the imaged code, the processor segmenting the imaged code, partitioning the segmented imaged code, determining a gray level of each portion of the partitioned segmented imaged code, and determining a code represented by each segmented portion of the partitioned segmented imaged code.

### Claim 2 (depends on 1)

The system of claim 1, wherein the processor further verifies that the determined code is a valid code by confirming that the determined code meets a predefined set of constraints.

### Claim 3 (depends on 2)

The system of claim 2, wherein the processor further matches the determined code to one of a plurality of possible codes.

### Claim 4 (depends on 1)

The system of claim 1, wherein the object on which the code is imprinted is a medication tablet.

### Claim 5 (depends on 1)

The system of claim 1, wherein each portion of the partitioned segmented imaged code comprises a predetermined grid having a predetermined length and width.

### Claim 6

A non-transient computer readable storage medium having a computer program stored thereon, the computer program causing a general purpose computer to perform the steps of:
receiving an imaged code from an imaging device;
segmenting the imaged code;
partitioning the segmented imaged code into four quadrants;
determining a gray level of each portion of the partitioned imaged segmented code;
determining a code represented by each segmented portion of the partitioned imaged segmented code;
verifying that the determined code is a valid code by confirming that the recovered determined code meets a predefined set of constraints; and
matching the determined code to one of a plurality of possible codes.

### Claim 7 (depends on 6)

The computer readable storage medium of claim 6, wherein two diagonally positioned quadrants contain a similar code stored therein.

### Claim 8 (depends on 6)

The computer readable storage medium of claim 6, wherein the portions of the partitioned imaged segmented code are defined by a grid overlaid thereon.

### Claim 9

A non-transient computer readable storage medium having a computer program stored thereon, the computer program causing a general purpose computer to perform the steps of:
receiving an imaged code from an imaging device;
segmenting the imaged code;
partitioning the segmented imaged code;
determining a gray level of each portion of the partitioned imaged segmented code;
determining a code represented by each segmented portion of the partitioned imaged segmented code;
verifying that the determined code is a valid code by confirming that the determined code meets a predefined set of constraints; and
matching the determined code to one of a plurality of possible codes;
wherein the step of determining a gray level of each portion of the partitioned segmented imaged code further comprises the steps of:
counting a number of colored pixels in the portion of the partitioned imaged segmented code;
determining a ratio of colored to non-colored pixels in the portion of the partitioned imaged segmented code; and
comparing the determined ratio to a predetermined threshold to determine whether the portion of the partitioned segmented imaged code is a colored portion.