| 摘要 |
The present invention relates to an image processing apparatus and method, recording medium, and program capable of increasing accuracy of motion vector detection by a gradient method. For each pixel in an operation block, an effective pixel determining unit 403 sets a predetermined pixel difference (threshold value) on time-base pixel difference ”t. When time-base pixel difference ”t is less than the set predetermined pixel difference, it is determined that the pixel contributes to (are effective in) motion vector detection, and the pixel is used in gradient operation in the case of performing motion vector detection. When the time-base pixel difference is not less than the set predetermined pixel difference, it is determined that the pixel is regarded as having a possibility to generate irregularity in movement, and the pixel is excluded from the gradient operation in the case of performing motion vector detection. The present invention is applicable to a signal processing apparatus for performing frame frequency conversion from a 24P signal to a 60P signal. |
