Method and apparatus for video pixel interpolation

A method for video format transformation, the method comprising:

• associating a field/frame value with a specific pixel, the associating a field/frame value comprising:
• associating a first value with the specific pixel, based, at least in part, on a result of computing a first function of a first group of pixels in proximity to the specific pixel, the first group of pixels being in a video frame which comprises the specific pixel;
• associating a second value with the specific pixel, based, at least in part, on a first result and a second result, the first result being a result of computing a second function of a second group of pixels, the second group of pixels comprising pixels of an even video field comprised in the video frame, and the second result being a result of computing the second function of a third group of pixels, the third group of pixels comprising pixels of an odd video field comprised in the video frame;
• and
• associating the field/frame value with the specific pixel, based, at least in part, on a third function of the first value and of the second value.

A method for transforming an input of interlaced scan mode video to an output of progressive scan mode video, on a pixel by pixel basis, comprising:

• producing a first value based, at least in part, on values of a plurality of pixels neighboring an output pixel within an even input video field;
• producing a second value based, at least in part, on values of one or more pixels neighboring the output pixel within an odd input video field;
• producing a third value based, at least in part, on values of pixels neighboring the output pixel;
• and
• producing an output value for the output pixel based, at least in part, on the first value, the second value, and the third value.

A method for transforming an input of interlaced mode video to an output of progressive mode video, both the input and the output respectively comprising pixels, the method comprising:

• for each pixel in the output:
• generating a first value based, at least partly, on values of a co-located input pixel and of neighboring input pixels within a video field of the input pixel;
• generating a second value based, at least partly, on values of neighboring input pixels within at least one temporally-neighboring video field of opposite parity to the input pixel;
• and
• from the generated first value and second value, producing an optimal value for the pixel in the output.