Picture signal processing method for processing a picture signal containing information including main picture portion and non-picture portions

• US 6,330,037 B1
• Filed: 11/15/1999
• Issued: 12/11/2001
• Est. Priority Date: 11/27/1998
• Status: Expired due to Fees

• Current Assignee: Pioneer Micro Technology Corporation (Pioneer Corporation)
• Original Assignee: Pioneer Corporation, Pioneer Video Corporation (Pioneer Corporation)
• Inventors: Nakajima, Masahiro, Otaki, Hiroshi
• Primary Examiner(s): HSIA, SHERRIE Y
• Application Number:
  US09/440,135
• Time in Patent Office: 757 Days
• Field of Search: H04/N.521, H04/N.701, H04/N.7015, 348/607, 348/625, 348/913, 348/618, 348/619, 348/620, 348/621, 348/624, 348/445, 348/448, 348/449, 348/452, 348/451
• US Class Current: 348/607
• CPC Class Codes: H04N 7/012 Conversion between an interlaced and a progressive signal for graphics images G09G2310/0229
• CPC Class Codes: H04N 7/0122 the input and the output signals having different aspect ratios
• CPC Class Codes: H04N 7/014 involving the use of motion vectors motion estimation and compensation in video coding H04N19/51
• CPC Class Codes: Y10S 348/913 Letterbox, e.g. display 16:9 aspect ratio image on 4:3 screen

Abstract

A picture signal processing method is provided for processing a picture signal containing information including main picture portion and non-picture portions. This method comprises: detecting boundary portions existing between the main picture portion and the non-picture portions of the picture signal; performing inter-field interpolation treatment to produce an interpolation scanning signal; and using the interpolation scanning signal to perform inter-field interpolation treatment on boundary portions between the main picture portion and the non-picture portions of the picture signal, so as to ensure a clearly visible display of the boundary portions.

Claims

1. A picture signal processing method for processing a picture signal containing information including main picture portion and non-picture portions, said method comprising:

detecting boundary portions existing between the main picture portion and the non-picture portions of the picture signal;

performing inter-field interpolation treatment to produce an interpolation scanning signal; and

using the interpolation scanning signal to perform inter-field interpolation treatment on boundary portions between the main picture portion and the non-picture portions of the picture signal, so as to ensure a clearly visible display of the boundary portions.

2. The picture signal processing method according to claim 1, wherein the boundary portions are detectable in accordance with an identification signal superimposed on the picture signal containing the information including the main picture portion and the non-picture portions.