JP2010124257A5

JP2010124257A5 -

Info

Publication number: JP2010124257A5
Application number: JP2008296237A
Authority: JP
Filing date: 2008-11-20
Publication date: 2011-04-21
Anticipated expiration: 2028-11-20

Claims

Using the first frame included in the input video signal and the second frame that is temporally past with respect to the first frame, the motion vector of the video is detected in units of pixels or predetermined blocks, and the detected motion vector is And generating an interpolation frame by filtering the pixel information of the first frame and the second frame, and performing an enhancement process on the generated interpolation frame to increase a high-frequency component of the interpolation frame. A processing unit;
A video signal processing apparatus comprising: an output unit that outputs a combination of the interpolation frame generated by the video processing unit and the frame sequence of the input signal.

The video signal processing apparatus according to claim 1,
The video processing unit performs enhancement processing on the interpolation frame when the number of blocks or pixels in which the motion vector is detected is greater than a predetermined value, and the number of blocks or pixels in which the motion vector is detected is equal to or less than a predetermined value. In this case, no enhancement processing is performed on the interpolated frame.

3. The video signal processing apparatus according to claim 1, wherein the enhancement processing is controlled based on a motion vector detected by the motion vector detection unit.

4. The video signal processing apparatus according to claim 1, wherein in the enhancement processing, an amount of enhancer is controlled according to a feature of the video extracted from the input video signal. apparatus.

  The video signal processing apparatus according to claim 4,
  The video processing unit extracts a motion amount of the video as a feature of the video based on the detected motion vector,
  If the amount of motion of the video is less than or equal to the first predetermined value, the first enhancer amount,
  A second enhancer amount larger than the first enhancer amount when the amount of motion of the video is greater than the first predetermined value and less than or equal to a second predetermined value;
  When the motion amount of the video is larger than the second predetermined value, the third enhancer amount is smaller than the second enhancer amount.
  A video signal processing apparatus for controlling the enhancer amount.

  The video signal processing apparatus according to claim 4,
  The video processing unit extracts, based on the detected motion vector, the number of pixels or blocks in which the motion vector in one frame is detected, and the direction of the motion vector as a feature of the video,
  When the number of pixels or blocks in which the motion vector pointing in the same direction in one frame is detected is equal to or greater than a predetermined number, the first enhancer amount is used. When the number of pixels or blocks is less than a predetermined value, the first A video signal processing apparatus characterized in that the second enhancer amount is smaller than the enhancer amount.

7. The video signal processing apparatus according to claim 6, wherein the number of pixels or blocks in which motion vectors in different directions are detected in one frame is greater than or equal to a predetermined value, respectively, based on the second enhancer amount. A video signal processing apparatus having a small third enhancer amount.

  The video signal processing apparatus according to claim 4,
  The video processing unit
  Extracting the amount of motion of the video as a feature of the video from the detected motion vector,
  Further, an edge component of the video is detected, and the number of pixels including the edge component is extracted as a feature of the video from the detected edge component,
  A video signal processing apparatus that controls the enhancer amount in accordance with a combination of a motion amount of the video and the number of pixels including the edge component.

  The video signal processing apparatus according to claim 8,
  The video processing unit sets the enhancer amount to 0 when the number of pixels including the edge component is equal to or less than a predetermined number, and when the number of pixels including the edge component is greater than the predetermined number,
  If the amount of motion of the video is less than or equal to a first predetermined value, the first enhancer amount,
  A second enhancer amount larger than the first enhancer amount when the amount of motion of the video is greater than the first predetermined value and less than or equal to a second predetermined value;
  When the motion amount of the video is larger than the second predetermined value, the third enhancer amount is smaller than the second enhancer amount.
  A video signal processing apparatus for controlling the enhancer amount.

  The video signal processing apparatus according to claim 4,
  The video processing unit
  Extracting the amount of motion of the video as a feature of the video from the detected motion vector,
  Further, the frequency analysis of the intensity of the frequency component of the video is performed, and from the result of the frequency analysis, the intensity of the high frequency component is extracted as a feature of the video,
  The video signal processing apparatus, wherein the enhancer amount is controlled in accordance with a combination of the motion amount of the video and the intensity of the high frequency component.

  The video signal processing apparatus according to claim 10,
  The video processing unit sets the enhancer amount to 0 when the intensity of the high-frequency component is less than or equal to a predetermined value, and when the intensity of the high-frequency component is greater than the predetermined value,
  If the amount of motion of the video is less than or equal to a first predetermined value, the first enhancer amount,
  A second enhancer amount larger than the first enhancer amount when the amount of motion of the video is greater than the first predetermined value and less than or equal to a second predetermined value;
  When the motion amount of the video is larger than the second predetermined value, the third enhancer amount is smaller than the second enhancer amount.
  A video signal processing apparatus for controlling the enhancer amount.

12. The video signal processing apparatus according to claim 10, wherein the video processing unit performs the frequency analysis for each video region and controls the enhancer amount for each region. Video signal processing device.

13. A video display device comprising a display unit for displaying a video whose frame rate has been converted by the video processing device according to claim 1.

  Detecting a motion vector of a video in units of pixels or predetermined blocks using a first frame included in an input video signal and a second frame that is temporally past the first frame;
  Filtering the pixel information of the first frame and the second frame using the detected motion vector to generate an interpolation frame;
  Performing enhancement processing for increasing the high-frequency component of the interpolation frame with respect to the interpolation frame;
  Outputting the enhanced interpolation frame in combination with a frame sequence of the input signal;
  A video signal processing method comprising:

15. The video signal processing method according to claim 14, wherein an enhancement amount of the enhancement processing is controlled in accordance with video characteristics.

16. The video signal processing method according to claim 15, wherein the video features include: a motion amount of the video, a direction of the motion vector, a number of pixels or blocks in which the motion vector is detected, and an edge component greater than a predetermined value. A video signal processing method comprising at least one of the number of pixels and the intensity of a high-frequency component included in a video.