Patent ID: 7756203
Filing Date: 2010-07-13
Classification: H04N

Abstract:
1. A signal processing apparatus comprising: a conversion unit which converts first moving image data having a first frame rate into second moving image data having a second frame rate by inserting, as a new frame, an image same as that of a frame to be immediately preceding to the new frame into the first moving image data having the first frame rate; an encoding unit which encodes the second moving image data having the second frame rate, output from said conversion unit, by selectively using intra-frame encoding, inter-frame prediction encoding of a first frame type which is not referred back to from another frame, and inter-frame prediction encoding of a second frame type which is referred back to from another frame, wherein said encoding unit selects one of the intra-frame encoding and the inter-frame prediction encoding of the second frame type at an interval of a predetermined number of frames; a control unit which controls said encoding unit so as to encode the frame immediately preceding to the frame inserted by said conversion unit, by using the inter-frame prediction encoding of the first frame type in a case where the inserted frame is encoded using the inter-frame prediction encoding of the second frame type; a recording/reproducing unit which records the moving image data encoded by said encoding unit on a recording medium and reproduces the encoded moving image data from the recording medium; and an output unit which outputs the encoded moving image data of the first frame rate by removing one of the inserted frame and the frame of the first frame type, immediately preceding to the inserted frame, from the moving image data reproduced from the recording medium.