Line interpolation apparatus and line interpolation method
AssigneePioneer Corporation
InventorHajime Adachi
Life of this patent
Estimating the term…
Abstract
A line interpolation apparatus, which converts an interlaced scanning image signal into a progressive scanning image signal, wherein the interlaced scanning image signal is obtained by decoding a signal, for which image compression has been performed by using a motion vector that represents the direction and the distance moved in an image; and wherein, as a line interpolation section, a line interpolation method is determined by using both information obtained from the motion vector and information obtained from differences between a pixel to be interpolated and pixels that, in image fields aligned with the time axis of and preceding and succeeding the image field in which the pixel to be interpolated is located, spatially occupy positions corresponding to that of the pixel to be interpolated.
Claims25
A line interpolation apparatus, which converts an interlaced scanning image signal into a progressive scanning image signal, comprising:
- a signal obtaining section adapted to obtain the interlaced scanning image signal by decoding a signal, for which image compression has been performed, using a motion vector that represents the direction and distance moved in an image;
- and
- a process determining section adapted to determine a line interpolation process by using both information obtained using the motion vector and information obtained by calculating differences between a pixel to be interpolated and pixels that, in image fields aligned with the time axis of and preceding and succeeding the image field in which the pixel to be interpolated is located, spatially occupy positions corresponding to that of the pixel to be interpolated;
- and
- a line interpolation section adapted to apply the line interpolation process determined by the process determining section to the interlaced scanning image signal obtained by the signal obtaining section.
A line interpolation method, for converting an interlaced scanning image signal into a progressive scanning image signal, comprising:
- obtaining the interlaced scanning image signal by decoding a signal for which image compression has been performed by using a motion vector to represent the direction and distance moved in an image;
- determining a line interpolation process to be used by using both information obtained from the motion vector and information obtained from differences between a pixel to be interpolated and pixels that, in image fields aligned with the time axis of and preceding and succeeding the image field in which the pixel to be interpolated is located, spatially occupy positions corresponding to that of the pixel that is to be interpolated;
- and
- applying the line interpolation process to the interlaced scanning image signal.
A line interpolation apparatus which converts an interlaced scanning image signal into a progressive scanning image signal, comprising:
- a signal obtaining section adapted to obtain the interlaced scanning image signal by decoding a signal by using a motion vector that represents the direction and distance moved in an image;
- and
- a process determining section adapted to determine a line interpolation process based on motion vector information and field pixel difference information.
Dependencies are inferred from the claim text.