Patent ID: 8260047
Filing Date: 2012-09-04
Classification: G06K,H04N

Abstract:
1. A method for displaying images from an analog image signal, the method comprising: partitioning an image from the analog image signal into a first number of horizontal portions with each horizontal portion associated with a horizontal counter in a first number of horizontal counters; computing a horizontal pixel difference for a pixel and an adjacent horizontal pixel, wherein the pixel is associated with an active horizontal counter; incrementing the active horizontal counter in response to a determining that the horizontal pixel difference exceeds a horizontal threshold, thereby generating a histogram of the image; selecting a portion of the image based on the histogram, wherein the selected portion of the image corresponds to a portion of the histogram having high horizontal counter values relative to other portions of the histogram; generating image data from the selected portion of the image; determining a sampling frequency from the image data; sampling the analog image signal at the sampling frequency to produce image samples; processing the image samples; and displaying the processed image samples.