Image processing apparatus and method
DC
First Claim
1. A process of tracking a target in an image processing system comprising:
- receiving an input signal including a plurality of frames, each frame including a plurality of pixels;
generating a histogram based on classification values of a plurality of pixels in a first frame of the input signal;
identifying a target from the histogram generated based on the first frame;
determining a target location based on the histogram generated based on the first frame;
generating a histogram based on classification values of a plurality of pixels in a second frame of the input signal subsequent to the first frame; and
adjusting the target location based on the histogram generated based on the second frame.
4 Assignments
Litigations
3 Petitions
Accused Products
Abstract
A method and apparatus for localizing an area in relative movement and for determining the speed and direction thereof in real time is disclosed. Each pixel of an image is smoothed using its own time constant. A binary value corresponding to the existence of a significant variation in the amplitude of the smoothed pixel from the prior frame, and the amplitude of the variation, are determined, and the time constant for the pixel is updated. For each particular pixel, two matrices are formed that include a subset of the pixels spatially related to the particular pixel. The first matrix contains the binary values of the subset of pixels. The second matrix contains the amplitude of the variation of the subset of pixels. In the first matrix, it is determined whether the pixels along an oriented direction relative to the particular pixel have binary values representative of significant variation, and, for such pixels, it is determined in the second matrix whether the amplitude of these pixels varies in a known manner indicating movement in the oriented direction. In each of several domains, histogram of the values in the first and second matrices falling in such domain is formed. Using the histograms, it is determined whether there is an area having the characteristics of the particular domain. The domains include luminance, hue, saturation, speed (V), oriented direction (D1), time constant (CO), first axis (x(m)), and second axis (y(m)).
104 Citations
30 Claims
-
1. A process of tracking a target in an image processing system comprising:
-
receiving an input signal including a plurality of frames, each frame including a plurality of pixels; generating a histogram based on classification values of a plurality of pixels in a first frame of the input signal; identifying a target from the histogram generated based on the first frame; determining a target location based on the histogram generated based on the first frame; generating a histogram based on classification values of a plurality of pixels in a second frame of the input signal subsequent to the first frame; and adjusting the target location based on the histogram generated based on the second frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A process of tracking a target in an image processing system comprising:
-
receiving an input signal from a camera, the input signal including a plurality of frames, each frame including a plurality of pixels; generating a histogram based on classification values of a plurality of pixels in a first frame of the input signal; identifying a target from the histogram generated based on the first frame, the target having a center point; displaying information from the input signal on a display including pixels associated with the target; generating a histogram based on classification values of a plurality of pixels in a second frame of the input signal; determining movement of the target from the histogram generated based on the second frame; and adjusting the camera based on the determined movement of the target to move the center point of the target towards a center point of the display. - View Dependent Claims (21, 22, 23)
-
-
24. An image processing system comprising:
-
a camera configured to output a signal including a plurality of frames, each frame including a plurality of pixels; and a processing system configured to; receive the signal; generate a histogram based on classification values of a plurality of pixels in a first frame of the signal; identify a target from the histogram; determine a target location based on the histogram generated based on the first frame; generate a histogram based on classification values of a plurality of pixels in a second frame of the signal subsequent to the first frame; and adjust the target location based on the histogram generated based on the second frame. - View Dependent Claims (25, 26, 27, 28, 29, 30)
-
Specification
-
- Resources
-
Current AssigneeImage Processing Technologies, LLC (General Patent Corporation), Southern District of Florida
-
Original AssigneeImage Processing Technologies, LLC (General Patent Corporation)
-
InventorsPirim, Patrick
-
Primary Examiner(s)Seth, Manav
-
Application NumberUS14/449,809Publication NumberTime in Patent Office223 DaysField of SearchNoneUS Class Current382/103CPC Class CodesG06T 2207/10016 Video; Image sequenceG06T 2207/20104 Interactive definition of r...G06T 2207/30241 TrajectoryG06T 5/70 Denoising; SmoothingG06T 7/10 Segmentation; Edge detectio...G06T 7/20 Analysis of motion motion e...G06T 7/246 using feature-based methods...G06T 7/70 Determining position or ori...G06T 7/73 using feature-based methodsG06V 10/255 Detecting or recognising po...G06V 10/50 by performing operations wi...G06V 20/52 Surveillance or monitoring ...H04N 23/69 Control of means for changi...
