# US 2013/0278754 A1 · Method and system for compensating for image blur by moving image sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0278754 A1 - Document ID: US20130278754A1 - Status: Published application - Kind: A1 - Application number: 13/779,858 - Filed: 2013-02-28 - Published: 2013-10-24 - Earliest claimed: 2012-04-24 - Assignees: Samsung Techwin Co., Ltd. - Applicants: Samsung Techwin Co., Ltd. - Inventors: Jae-yoon OH - Web page: https://patentgrep.com/patent/US20130278754A1 ## CPC - H04N 23/687: {by shifting the lens or sensor position} - H04N 5/272: Means for inserting a foreground image in a background image, i.e. inlay, outlay - H04N 23/6811: {based on the image signal} - H04N 23/685: {performed by mechanical compensation} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A system for compensating for image blur, the system including: a movement detector which an appearance of a subject moving in a surveillance range in order to calculate a movement distance and speed determines movement characteristics of a subject on a display of a camera which obtains an image of the object; a calculator which determines moving characteristics of an image sensor based on the movement characteristics of the subject; and a moving unit which moves the image sensor for an exposure time of at least one predetermined frame based on the moving characteristics of the image sensor. ## Claims ### Claim 1 A system for compensating for image blur, the system comprising: a movement detector which an appearance of a subject moving in a surveillance range in order to calculate a movement distance and speed determines movement characteristics of a subject on a display of a camera which obtains an image of the object; a calculator which determines moving characteristics of an image sensor based on the movement characteristics of the subject; and a moving unit which moves the image sensor for an exposure time of at least one predetermined frame based on the moving characteristics of the image sensor. ### Claim 2 (depends on 1) The system of claim 1, wherein the movement characteristics of the subject comprises a movement distance and speed of the subject on the display, and wherein the moving characteristics of the image sensor comprises a moving distance and speed of the image sensor with respect to a direction of a lens of the camera within the camera. ### Claim 3 (depends on 2) The system of claim 2, wherein the moving unit moves the image sensor with respect to the direction of the lens of the camera within the camera for the exposure time of the predetermined frame so that a given pixel of the image sensor outputs an image of a same portion of the subject regardless of the moving of the subject in the surveillance region. ### Claim 4 (depends on 1) The system of claim 1, wherein the moving unit is connected to a piezoelectric element. ### Claim 5 (depends on 1) The system of claim 1, wherein the image sensor is moved to an original position during a vertical synchronization time between the predetermined frame and a following frame of the predetermined frame. ### Claim 6 (depends on 1) The system of claim 1, wherein the movement characteristics of the subject comprises a movement distance and speed of the subject on the display, and the moving characteristics of the image sensor comprises a moving distance and speed of the image sensor, and wherein the moving distance of the image sensor is calculated by multiplying a number of pixels of the image sensor corresponding to the movement distance of the subject on the display to a unit cell size of the image sensor. ### Claim 7 (depends on 1) The system of claim 1, wherein the movement characteristics of the subject comprises a movement distance and speed of the subject on the display, and the moving characteristics of the image sensor comprises a moving distance and speed of the image sensor, and wherein the moving speed of the image sensor is calculated by dividing the moving distance of the image sensor by the exposure time. ### Claim 8 (depends on 1) The system of claim 1, wherein, if a background of an image of the subject obtained by moving the image sensor is blurred, the background is replaced. ### Claim 9 (depends on 1) The system of claim 1, wherein the movement detector sets at least one frame, having a given frame interval, at which the movement detector determines the movement characteristics of the subject, and wherein the moving unit moves the image sensor for the exposure time of the at least one predetermined frame which is at least one frame provided during the given frame interval. ### Claim 10 (depends on 9) The system of claim 9, wherein the movement characteristics of the subject comprises a movement distance and speed of the subject on the display, and wherein the moving characteristics of the image sensor comprises a moving distance and speed of the image sensor with respect to a direction of a lens of the camera within the camera. ### Claim 11 (depends on 10) The system of claim 10, wherein the moving unit moves the image sensor with respect to the direction of the lens of the camera within the camera for the exposure time of the predetermined frame so that a given pixel of the image sensor outputs an image of a same portion of the subject regardless of the moving of the subject in the surveillance region. ### Claim 12 A method of compensating for image blur, the method comprising: determining movement characteristics of a subject on a display of a camera which obtains an image of the subject; determining moving characteristics of an image sensor based on the movement characteristics of the subject; and moving the image sensor for an exposure time of at least one predetermined frame based on the moving characteristics of the image sensor. ### Claim 13 (depends on 12) The method of claim 12 wherein the movement characteristics of the subject comprises a movement distance and speed of the subject on the display, and wherein the moving characteristics of the image sensor comprises a moving distance and speed of the image sensor with respect to a direction of a lens of the camera within the camera. ### Claim 14 (depends on 13) The system of claim 13, wherein the moving the image sensor comprises moving the image sensor with respect to the direction of the lens of the camera within the camera for the exposure time of the predetermined frame so that a given pixel of the image sensor outputs an image of a same portion of the subject regardless of the moving of the subject in the surveillance region. ### Claim 15 (depends on 12) The method of claim 12, further comprising moving the image sensor to an original position during a vertical synchronization time between the predetermined frame and a following frame of the predetermined frame. ### Claim 16 (depends on 12) The method of claim 12, wherein the movement characteristics of the subject comprises a movement distance and speed of the subject on the display, and the moving characteristics of the image sensor comprises a moving distance and speed of the image sensor, and wherein the moving distance of the image sensor is calculated by multiplying a number of pixels of the image sensor corresponding to the movement distance of the subject on the display to a unit cell size of the image sensor. ### Claim 17 (depends on 12) The method of claim 12, wherein the movement characteristics of the subject comprises a movement distance and speed of the subject on the display, and the moving characteristics of the image sensor comprises a moving distance and speed of the image sensor, and wherein the moving speed of the image sensor is calculated by dividing the moving distance of the image sensor by the exposure time. ### Claim 18 (depends on 12) The method of claim 12, further comprising: determining whether a background of an image obtained by moving the image sensor is blurred; and if it is determined that the background is blurred, replacing the background. ### Claim 19 (depends on 12) The method of claim 12, further comprising setting at least one frame, having a given frame interval, at which the movement characteristics of the subject is determined, and wherein the moving the image sensor comprises moving the image sensor for the exposure time of the at least one predetermined frame which is at least one frame provided during the given frame interval. ### Claim 20 (depends on 19) The method of claim 19, wherein the movement characteristics of the subject comprises a movement distance and speed of the subject on the display, and wherein the moving characteristics of the image sensor comprises a moving distance and speed of the image sensor with respect to a direction of a lens of the camera within the camera.