Video signal processing apparatus, video signal processing method, imaging apparatus, reproduction apparatus, and reception apparatus

• US 20040208493A1
• Filed: 04/15/2004
• Published: 10/21/2004
• Est. Priority Date: 04/17/2003
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kashiwa, Kotaro, Akahane, Shigeru
• Application Number:
  US10/824,912
• Publication Number:
  US 20040208493A1
• Time in Patent Office: Days
• US Class Current: 386/117
• CPC Class Codes: H04N 23/665 involving internal camera communication with the image sensor, e.g. synchronising or multiplexing SSIS control signals
• CPC Class Codes: H04N 5/77 between a recording apparatus and a television camera
• CPC Class Codes: H04N 5/907 using static stores, e.g. storage tubes or semiconductor memories H04N5/91 takes precedence
• CPC Class Codes: H04N 9/8042 involving data reduction
• CPC Class Codes: H04N 9/8227 the additional signal being at least another television signal

Abstract

The present invention aims at simplifying configurations of devices compliant to a plurality of simultaneously imaged video signals. A plurality of imaging means 101 and 102 obtains a plurality of imaged video signals P1 and P2. These signals are selected at a vertical synchronization timing (104) to generate one system of composed video signal Pmix0. Compression means 105 compresses the composed video signal Pmix0 to record or transmit it. Decompression means 107 decompresses a compressed and composed video signal Pmix2 which is reproduced from a recording medium or is received. A video decomposition process can recover an original plurality of systems of video signals simply by selecting the signals at the vertical synchronization timing (109). An interpolation process is performed for a field that is lost due to the field-based selection during composition.

Claims

1. A video signal processing apparatus comprising:

composition means for sequentially selecting a plurality of video signals supplied synchronously with the same synchronization signal at a vertical synchronization timing of said synchronization signal to obtain a composed video signal comprising a composition of said video signals; and

compression means for compressing a composed video signal obtained by said composition means.

2. The video signal processing apparatus according to claim 1 further comprising:

recording means for recording on a recording medium a compressed and composed video signal compressed by said compression means.

3. The video signal processing apparatus according to claim 1 further comprising:

transmission means for transmitting a compressed and composed video signal compressed by said compression means.

4. A video signal processing apparatus comprising:

composition means for sequentially selecting and composing a plurality of video signals supplied synchronously with the same synchronization signal at a vertical synchronization timing of said synchronization signal;

decompression means for applying a decompression process to a compressed and composed video signal compressed after composition by said composition means to obtain a decompressed composed video signal; and

video decomposition means for sequentially selecting a composed video signal output from said decompression means at a vertical synchronization timing to obtain a plurality of video signals.

5. The video signal processing apparatus according to claim 4 further comprising:

interpolation means for interpolating a video signal output from said video decomposition means.

6. The video signal processing apparatus according to claim 4 further comprising:

reproduction means for a recording medium,

wherein a compressed and composed video signal input to said decompression means is reproduced by said reproduction means from a recording medium.

7. The video signal processing apparatus according to claim 4 further comprising:

reception means,

wherein a compressed and composed video signal input to said decompression means is received by said reception means.

8. A video signal processing method comprising the steps of:

sequentially selecting a plurality of video signals supplied synchronously with the same synchronization signal at a vertical synchronization timing of said synchronization signal to obtain a composed video signal comprising a composition of said plurality of video signals;

compressing said composed video signal; and

recording on a recording medium or transmitting said compressed and composed video signal.

9. A video signal processing method comprising the steps of:

sequentially selecting and composing a plurality of video signals supplied synchronously with the same synchronization signal at a vertical synchronization timing of said synchronization signal;

applying a decompression process to a compressed and composed video signal compressed after composition in correspondence with said compression process to obtain a decompressed composed video signal; and

sequentially selecting said composed video signal at a vertical synchronization timing to output a plurality of video signals.

10. The video signal processing method according to claim 9 further comprising the step of:

interpolating said output video signal.

11. An imaging apparatus comprising:

synchronization signal generation means;

a plurality of imaging means for performing imaging based on a synchronization signal from said synchronization signal generation means to output an imaged video signal;

composition means for sequentially selecting a plurality of imaged video signals obtained by said plurality of imaging means at a vertical synchronization timing of said synchronization signal to obtain a composed video signal comprising a composition of said plurality of imaged video signals; and

compression means for compressing a composed video signal obtained by said composition means.

12. The imaging apparatus according to claim 11 further comprising:

recording means for recording on a recording medium a compressed and composed video signal compressed by said compression means.

13. The imaging apparatus according to claim 11 further comprising:

transmission means for transmitting a compressed and composed video signal compressed by said compression means.

14. A reproduction apparatus comprising:

reproduction means for reproducing from a recording medium a compressed and composed video signal generated by sequentially selecting and composing a plurality of imaged video signals obtained by a plurality of imaging means for performing imaging based on the same synchronization signal and by compressing said imaged video signals after composition, wherein said sequential selection is performed at a vertical synchronization timing of said synchronization signal;

decompression means for decompressing a compressed and composed video signal reproduced by said reproduction means from a recording medium in correspondence with said compression process to obtain a decompressed composed video signal; and

video decomposition means for sequentially selecting a composed video signal from said decompression means at a vertical synchronization timing to obtain a plurality of video signals.

15. The reproduction apparatus according to claim 14 further comprising:

interpolation means for interpolating a video signal output from said video decomposition means.

16. A reception apparatus comprising:

reception means for receiving a compressed and composed video signal generated by sequentially selecting and composing a plurality of imaged video signals obtained by a plurality of imaging means for performing imaging based on the same synchronization signal and by compressing said imaged video signals after composition, wherein said sequential selection is performed at a vertical synchronization timing of said synchronization signal;

decompression means for decompressing a compressed and composed video signal received by said reception means in correspondence with said compression process to obtain a decompressed composed video signal; and

video decomposition means for sequentially selecting a composed video signal from said decompression means at a vertical synchronization timing to obtain a plurality of video signals.

17. The reception apparatus according to claim 16 further comprising:

interpolation means for interpolating a video signal output from said video decomposition means.