# US 8,786,590 B2 · Image processing arrangement illuminating regions of an image based on motion

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- Number: US 8,786,590 B2
- Document ID: US8786590B2
- Status: Granted
- Kind: B2
- Application number: 14/069,026
- Filed: 2013-10-31
- Published: 2014-02-27
- Granted: 2014-07-22
- Earliest claimed: 2010-08-19
- Assignees: STMicroelectronics International N.V.
- Applicants: STMicroelectronics International N.V.
- Inventors: Surinder Pal Singh; Kaushik Saha; Sumit Johar
- Web page: https://patentgrep.com/patent/US8786590B2

## CPC

- G09G 5/00: Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators (image data processing or generation, in general G06T)
- G06T 1/00: General purpose image data processing
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL

## Abstract

An image processing arrangement includes an input to receive an indicator of a power characteristic related to an image processing arrangement and an image processor to process an image based on the indicator of the power characteristic.

## Claims

### Claim 1

An image processing arrangement comprising:
an input configured to receive at least one indicator of a power characteristic related to the image processing arrangement; and
an image processor configured to process an image based on the at least one indicator of the power characteristic,
wherein the image processing arrangement is configured for modulating regions of a display based on an identified region of interest within an image being displayed, wherein the modulation occurs independently for different regions of the display and wherein the modulation is based off of motion identified in the displayed image.

### Claim 2 (depends on 1)

The image processing arrangement as claimed in claim 1, wherein the image processor comprises a geometric modulator configured to geometrically modulate the image based on the at least one indicator of the power characteristic.

### Claim 3 (depends on 2)

The image processing arrangement as claimed in claim 2, wherein the geometric modulator further comprises a geometric scale factor determiner configured to determine a geometric scale factor based on the at least one indicator of the power characteristic, wherein the geometric modulator is configured to geometrically modulate the image based on the geometric scale factor.

### Claim 4 (depends on 3)

The image processing arrangement as claimed in claim 3, wherein the geometric scale factor determiner is configured to determine a geometric scale factor further based on at least one of:
a minimum image size;
a maximum rate of change of image size; and
an original image size.

### Claim 5 (depends on 1)

The image processing arrangement as claimed in claim 1, wherein the image processor comprises an illumination modulator configured to change the illumination of at least one region of the image based on the at least one indicator of the power characteristic.

### Claim 6 (depends on 5)

The image processing arrangement as claimed in claim 5, wherein the image processor further comprises a region of interest determiner configured to determine at least one region of the image; and wherein the illumination modulator is configured to change the illumination of the at least one region of the image determined by the region of interest determiner.

### Claim 7 (depends on 6)

The image processing arrangement as claimed in claim 6, wherein the image processor further comprises a motion estimator configured to estimate a motion value of a region between the image and at least one of a previous image and a successive image.

### Claim 8 (depends on 7)

The image processing arrangement as claimed in claim 7, wherein the motion estimator comprises at least one of:
an x-axis motion vector determiner configured to determine an x-axis motion vector of the at least one region between the image and the at least one of the previous image and the successive image;
a y-axis motion vector determiner configured to determine a y-axis motion vector of the at least one region between the image and the at least one of the previous image and the successive image; and
an absolute motion vector determiner configured to determine an absolute motion vector of the at least one region between the image and the at least one of the previous image and the successive image.

### Claim 9 (depends on 7)

The image processing arrangement as claimed in claim 7, wherein the region of interest determiner further comprises at least one of:
a temporal filter configured to temporally smooth the motion value of the region between the image and the at least one of the previous image and the successive image; and
a spatial filter configured to spatially smooth the motion value of the region between the image and the at least one of the previous image and successive image.

### Claim 10 (depends on 7)

The image processing arrangement as claimed in claim 7, wherein the illumination modulator is configured to change the illumination of the at least one region of the image further based on the motion value of the at least one region.

### Claim 11 (depends on 6)

The image processing arrangement as claimed in claim 6, wherein the region of interest determiner is configured to determine at least one region comprising at least one of:
a defined shape;
a defined object;
an object moving at a defined velocity;
an object moving with a defined trajectory;
a body;
a face;
an edge; and
a corner.

### Claim 12 (depends on 5)

The image processing arrangement as claimed in claim 5, wherein the illumination modulator is further configured to change the illumination of the at least one region of the image based on an average motion between the image and the at least one of the previous image and the successive image.

### Claim 13 (depends on 1)

An apparatus comprising:
the image processing arrangement as claimed in claim 1;
a power source configured to supply power to at least the image processing arrangement; and
an apparatus monitor configured to monitor the power source and determine the at least one indicator of the power characteristic.

### Claim 14 (depends on 13)

The apparatus as claimed in claim 13, wherein the at least one indicator of a power characteristic comprises at least one of:
a power capacity of the power source; and
an estimated power requirement of the apparatus.

### Claim 15

A method for image processing comprising:
receiving at least one indicator of a power characteristic related to the image processing;
processing an image based on the at least one indicator of the power characteristic; and
modulating regions of a display based on an identified region of interest within an image being displayed, wherein the modulation occurs independently for different regions of the display and wherein the modulation is based off of motion identified in the displayed image.

### Claim 16 (depends on 15)

The method as claimed in claim 15, wherein processing the image comprises geometrically modulating the image based on the at least one indicator of the power characteristic.

### Claim 17 (depends on 16)

The method as claimed in claim 16, wherein geometrically modulating further comprises determining a geometric scale factor based on the at least one indicator of the power characteristic, wherein geometrically modulating comprises geometrically modulating the image based on the geometric scale factor.

### Claim 18 (depends on 17)

The method as claimed in claim 17, wherein determining a geometric scale factor comprises determining a geometric scale factor further based on at least one of:
a minimum image size;
a maximum rate of change of image size; and
an original image size.

### Claim 19 (depends on 15)

The method as claimed in claim 15, wherein processing the image further comprises modulating the illumination of at least one region of the image based on the at least one indicator of the power characteristic.

### Claim 20 (depends on 19)

The method as claimed in claim 19, wherein modulating the illumination of at least one region of the image comprises determining at least one region of the image and modulating the illumination of the at least one region of the image determined.

### Claim 21 (depends on 20)

The method as claimed in claim 20, wherein processing the image further comprises estimating a motion value of a region between the image and at least one of a previous image and a successive image.

### Claim 22 (depends on 21)

The method as claimed in claim 21, wherein estimating the motion value comprises at least one of:
determining an x-axis motion vector of the at least one region between the image and the at least one of the previous image and the successive image;
determining a y-axis motion vector of the at least one region between the image and the at least one of the previous image and the successive image; and
determining an absolute motion vector of the at least one region between the image and the at least one of the previous image and the successive image.

### Claim 23 (depends on 21)

The method as claimed in claim 21, wherein determining the region of interest further comprises at least one of:
temporally smoothing the motion value of the region between the image and the at least one previous and/or successive image; and
spatially smoothing the motion value of the region between the image and the at least one previous and/or successive image.

### Claim 24 (depends on 21)

The method as claimed in claim 21, wherein modulating the illumination comprises modulating the illumination of the at least one region of the image further based on the motion value of the at least one region.

### Claim 25 (depends on 20)

The method as claimed in claim 20, wherein determining the region of interest comprises determining at least one region comprising at least one of:
a defined shape;
a defined object;
an object moving at a defined velocity;
an object moving with a defined trajectory;
a body;
a face;
an edge; and
a corner.

### Claim 26 (depends on 19)

The method as claimed in claim 19, wherein modulating the illumination further comprises modulating the illumination of the at least one region of the image based on an average motion between the image and the at least one of the previous image and the successive image.

### Claim 27 (depends on 15)

The method as claimed in claim 15, wherein the at least one indicator of a power characteristic comprises at least one of:
a power capacity of a power source; and
an estimated power requirement of an apparatus.
