Image processing system, image processing method and program storage medium for protecting privacy

Abstract

An image processing system includes: a receiving unit configured to receive an input of a plurality of image frames constituting a video from an imaging apparatus; a detection unit configured to detect a feature point included in an image frame to be processed in the plurality of image frames; and an output unit configured to output an output image obtained by superimposing an image frame to be processed of an area detected as a feature point on a background image generated from at least some of a plurality of image frames.

1 . An image processing system comprising:
 a memory; and   at least one processor coupled to the memory, the at least one processor performing operations to:   receiving an input of an image frame;   detecting a feature point from a part of or a whole the image frame, the feature point being an edge;   outputting an output image with a first pixel value at a first position of a background image as a second pixel value, the first position of a background image corresponding to a position of the feature point detected in the image frame, the second pixel value being a value at which the first pixel value is changed to one of at least two different types values based on predetermined rule.   
     
     
         2 . The image processing system according to  claim 1 , wherein the at least one processor further performs operation to:
 outputting sequentially the output image.   
     
     
         3 . The image processing system according to  claim 1 , wherein the at least one processor further performs operation to:
 detecting the feature point of a moving object from a part of or a whole the image frame.   
     
     
         4 . The image processing system according to  claim 1 , wherein the at least one processor further performs operation to:
 performing an analysis of a behavior of a moving object.   
     
     
         5 . The image processing system according to  claim 4 ,
 wherein the moving object is a person.   
     
     
         6 . The image processing system according to  claim 4 , wherein the edge includes a contour line of the moving object. 
     
     
         7 . An image processing method comprising:
 receiving an input of an image frame;   detecting a feature point from a part of or a whole the image frame, the feature point being an edge;   outputting an output image with a first pixel value at a first position of a background image as a second pixel value, the first position of a background image corresponding to a position of the feature point detected in the image frame, the second pixel value being a value at which the first pixel value is changed to one of at least two different types values based on predetermined rule.   
     
     
         8 . The image processing method according to  claim 7 , further comprising:
 outputting sequentially the output image.   
     
     
         9 . The image processing method according to  claim 7 , further comprising:
 detecting the feature point of a moving object from a part of or a whole the image frame.   
     
     
         10 . The image processing method according to  claim 7 , further comprising:
 performing an analysis of a behavior of a moving object.   
     
     
         11 . The image processing method according to  claim 10 ,
 wherein the moving object is a person.   
     
     
         12 . The image processing method according to  claim 10 ,
 wherein the edge includes a contour line of the moving object.   
     
     
         13 . A non-transitory computer-readable storage medium storing a program that, if executed, causes a computer to perform operations comprising:
 receiving an input of an image frame;   detecting a feature point from a part of or a whole the image frame, the feature point being an edge;   outputting an output image with a first pixel value at a first position of a background image as a second pixel value, the first position of a background image corresponding to a position of the feature point detected in the image frame, the second pixel value being a value at which the first pixel value is changed to one of at least two different types values based on predetermined rule.   
     
     
         14 . The storage medium according to  claim 13 , wherein the program causes the computer to perform operations comprising:
 outputting sequentially the output image.   
     
     
         15 . The storage medium according to  claim 13 , wherein the program causes the computer to perform operations comprising:
 detecting the feature point of a moving object from a part of or a whole the image frame.   
     
     
         16 . The storage medium according to  claim 13 , wherein the program causes the computer to perform operations comprising:
 performing an analysis of a behavior of a moving object.   
     
     
         17 . The storage medium according to  claim 16 ,
 wherein the moving object is a person.   
     
     
         18 . The storage medium according to  claim 16 ,
 wherein the edge includes a contour line of the moving object.