초록 ▼

A method and apparatus for object-of-interest image de-blurring includes functions that determine (305, 310) an object region of an object-of-interest in an image that may be generated by image capture device (805), that determine (315, 825) a motion vector of the object-of-interest, that determine

A method and apparatus for object-of-interest image de-blurring includes functions that determine (305, 310) an object region of an object-of-interest in an image that may be generated by image capture device (805), that determine (315, 825) a motion vector of the object-of-interest, that determine (325, 830) a scaling factor, and that generate (330) a de-blurred object region by processing the object region using a deconvolution filter (835) formulated from the motion vector and the scaling factor.

대표청구항 ▼

What is claimed is: 1. A method for object-of-interest image de-blurring, comprising: determining an object region of an object-of-interest in a first image; determining a motion vector of the object-of-interest from the first image and a second image; determining a scaling factor as a ratio of the

What is claimed is: 1. A method for object-of-interest image de-blurring, comprising: determining an object region of an object-of-interest in a first image; determining a motion vector of the object-of-interest from the first image and a second image; determining a scaling factor as a ratio of the exposure time (ET) of the first image to the frame interval (FI) between the first and second images; and generating a de-blurred object region by processing the object region using a deconvolution filter formulated from the motion vector and the scaling factor. 2. The method according to claim 1, further comprising: performing object analysis using the de-blurred object region. 3. The method according to claim 1, wherein determining a motion vector of the object-of-interest further comprises: determining another object region of the object-of-interest in the second image. 4. The method according to claim 3, wherein determining a motion vector of the object-of-interest further comprises determining the motion vector as a displacement vector between centroids of the object region and the other object region. 5. The method according to claim 3, wherein determining a motion vector of the object-of-interest further comprises using a block matching motion vector estimation algorithm. 6. The method according to claim 3, wherein the first image and the second image are successive frames of a video sequence. 7. The method according to claim 1, wherein determining a motion vector of the object-of-interest comprises obtaining the motion vector from motion vector information contained in a compressed video sequence. 8. The method according to claim 1, wherein coefficients of the deconvolution filter are based on a point spread function that is formulated based on a scaling of the motion vector using the scaling factor. 9. A means for de-blurring an object-of-interest, comprising: a means for image capture; a means for determining an object region of an object-of-interest in a first image captured by the means for image capture; a means for determining a motion vector of the object-of-interest from the first image and a second image; a means for determining a scaling factor as a ratio of the exposure time (ET) of the first image to the frame interval (FI) between the first and second images; and a means for generating a de-blurred object region by processing the object region using a deconvolution filter formulated from the motion vector and the scaling factor. 10. An apparatus for de-blurring an object-of interest, comprising: a digital camera that captures images; and a processor that performs the following functions: determining an object region of an object-of-interest in a first image; determining a motion vector of the object-of-interest from the first image and a second image; determining a scaling factor as a ratio of the exposure time (ET) of the first image to the frame interval (FI) between the first and second images; and generating a de-blurred object region by processing the object region using a deconvolution filter formulated from the motion vector and the scaling factor.