Encoding method and encoding apparatus

Claim 2

1 . An encoding method comprising: acquiring background data, and at least one pair of foreground data and mask data, that are obtained by decomposing original image data; and encoding the background data, the foreground data and the mask data, including performing a JPEG2000 encoding using tile division or precinct division with respect to the mask data.

Claim 3

2 . The encoding method as claimed in claim 1 , wherein encoding the background data, the foreground data and the mask data comprises performing the JPEG2000 encoding using the tile division or the precinct division with respect to the foreground data, and matches division boundaries of the foreground data and the mask data.

Claim 4

3 . The encoding method as claimed in claim 1 , wherein encoding the background data, the foreground data and the mask data comprises dividing the foreground data into a plurality of region parts, independently encoding each of the region parts, and matching division boundaries of the foreground data and the mask data.

Claim 5

4 . The encoding method as claimed in claim 1 , wherein encoding the background data, the foreground data and the mask data comprises performing the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matching division boundaries of the background data and the mask data.

Claim 6

5 . The encoding method as claimed in claim 1 , wherein encoding the background data, the foreground data and the mask data comprises dividing the background data into a plurality of region parts, independently encoding each of the region parts, and matching division boundaries of the background data and the mask data.

Claim 7

6 . The encoding method as claimed in claim 2 , wherein encoding the background data, the foreground data and the mask data comprises performing the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matching division boundaries of the background data and the mask data.

Claim 8

7 . The encoding method as claimed in claim 3 , wherein encoding the background data, the foreground data and the mask data comprises performing the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matching division boundaries of the background data and the mask data.

Claim 9

8 . The encoding method as claimed in claim 2 , wherein encoding the background data, the foreground data and the mask data comprises dividing the background data into a plurality of region parts, independently encoding each of the region parts, and matching division boundaries of the background data and the mask data.

Claim 10

9 . The encoding method as claimed in claim 3 , wherein encoding the background data, the foreground data and the mask data comprises dividing the background data into a plurality of region parts, independently encoding each of the region parts, and matching division boundaries of the background data and the mask data.

Claim 11

10 . An encoding method comprising: acquiring background data, and at least one pair of foreground data and mask data, that are obtained by decomposing original image data; and encoding the background data, the foreground data and the mask data, including dividing the mask data into a plurality of region parts, and independently encoding each of the region parts.

Claim 12

10 . An encoding method comprising: acquiring background data, and at least one pair of foreground data and mask data, that are obtained by decomposing original image data; and encoding the background data, the foreground data and the mask data, including dividing the mask data into a plurality of region parts, and independently encoding each of the region parts.

Claim 13

11 . The encoding method as claimed in claim 10 , wherein encoding the background data, the foreground data and the mask data comprises performing the JPEG2000 encoding using the tile division or the precinct division with respect to the foreground data, and matches division boundaries of the foreground data and the mask data.

Claim 14

12 . The encoding method as claimed in claim 10 , wherein encoding the background data, the foreground data and the mask data comprises dividing the foreground data into a plurality of region parts, independently encoding each of the region parts, and matching division boundaries of the foreground data and the mask data.

Claim 15

13 . The encoding method as claimed in claim 10 , wherein encoding the background data, the foreground data and the mask data comprises performing the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matching division boundaries of the background data and the mask data.

Claim 16

14 . The encoding method as claimed in claim 10 , wherein encoding the background data, the foreground data and the mask data comprises dividing the background data into a plurality of region parts, independently encoding each of the region parts, and matching division boundaries of the background data and the mask data.

Claim 17

15 . The encoding method as claimed in claim 11 , wherein encoding the background data, the foreground data and the mask data comprises performing the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matching division boundaries of the background data and the mask data.

Claim 18

16 . The encoding method as claimed in claim 12 , wherein encoding the background data, the foreground data and the mask data comprises performing the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matching division boundaries of the background data and the mask data.

Claim 19

17 . The encoding method as claimed in claim 11 , wherein encoding the background data, the foreground data and the mask data comprising dividing the background data into a plurality of region parts, independently encoding each of the region parts, and matching division boundaries of the background data and the mask data.

Claim 20

18 . The encoding method as claimed in claim 12 , wherein encoding the background data, the foreground data and the mask data comprises dividing the background data into a plurality of region parts, independently encoding each of the region parts, and matching division boundaries of the background data and the mask data.

Claim 21

19 . An encoding apparatus comprising: a data acquiring unit to acquire background data, and at least one pair of foreground data and mask data, that are obtained by decomposing original image data; and an encoding unit to encode the background data, the foreground data and the mask data acquired by the data acquiring unit, wherein the encoding unit performs a JPEG2000 encoding using tile division or precinct division with respect to the mask data.

Claim 22

19 . An encoding apparatus comprising: a data acquiring unit to acquire background data, and at least one pair of foreground data and mask data, that are obtained by decomposing original image data; and an encoding unit to encode the background data, the foreground data and the mask data acquired by the data acquiring unit, wherein the encoding unit performs a JPEG2000 encoding using tile division or precinct division with respect to the mask data.

Claim 23

20 . The encoding apparatus as claimed in claim 19 , wherein the encoding unit does not apply a wavelet transform when encoding the mask data if an absolute value of each pixel position of the mask data is 0 or 2 n , where n is an integer.

Claim 24

21 . The encoding apparatus as claimed in claim 19 , wherein the encoding unit performs the JPEG2000 encoding using the tile division or the precinct division with respect to the foreground data, and matches division boundaries of the foreground data and the mask data.

Claim 25

22 . The encoding apparatus as claimed in claim 19 , wherein the encoding unit divides the foreground data into a plurality of region parts, independently encodes each of the region parts, and matches division boundaries of the foreground data and the mask data.

Claim 26

23 . The encoding apparatus as claimed in claim 19 , wherein the encoding unit performs the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matches division boundaries of the background data and the mask data.

Claim 27

24 . The encoding apparatus as claimed in claim 19 , wherein the encoding unit divides the background data into a plurality of region parts, independently encodes each of the region parts, and matches division boundaries of the background data and the mask data.

Claim 28

25 . The encoding apparatus as claimed in claim 21 , wherein the encoding unit performs the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matches division boundaries of the background data and the mask data.

Claim 29

26 . The encoding apparatus as claimed in claim 22 , wherein the encoding unit performs the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matches division boundaries of the background data and the mask data.

Claim 30

27 . The encoding apparatus as claimed in claim 21 , wherein the encoding unit divides the background data into a plurality of region parts, independently encodes each of the region parts, and matches division boundaries of the background data and the mask data.

Claim 31

28 . The encoding apparatus as claimed in claim 22 , wherein the encoding unit divides the background data into a plurality of region parts, independently encodes each of the region parts, and matches division boundaries of the background data and the mask data.

Claim 32

29 . An encoding apparatus comprising: a data acquiring unit to acquire background data, and at least one pair of foreground data and mask data, that are obtained by decomposing original image data; and an encoding unit to encode the background data, the foreground data and the mask data acquired by the data acquiring part, wherein the encoding unit divides the mask data into a plurality of region parts, and independently encodes each of the region parts.

Claim 33

29 . An encoding apparatus comprising: a data acquiring unit to acquire background data, and at least one pair of foreground data and mask data, that are obtained by decomposing original image data; and an encoding unit to encode the background data, the foreground data and the mask data acquired by the data acquiring part, wherein the encoding unit divides the mask data into a plurality of region parts, and independently encodes each of the region parts.

Claim 34

30 . The encoding apparatus as claimed in claim 29 , wherein the encoding unit performs the JPEG2000 encoding using the tile division or the precinct division with respect to the foreground data, and matches division boundaries of the foreground data and the mask data.

Claim 35

31 . The encoding apparatus as claimed in claim 29 , wherein the encoding unit divides the foreground data into a plurality of region parts, independently encodes each of the region parts, and matches division boundaries of the foreground data and the mask data.

Claim 36

32 . The encoding apparatus as claimed in claim 29 , wherein the encoding unit performs the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matches division boundaries of the background data and the mask data.

Claim 37

33 . The encoding apparatus as claimed in claim 29 , wherein the encoding unit divides the background data into a plurality of region parts, independently encodes each of the region parts, and matches division boundaries of the background data and the mask data.

Claim 38

34 . The encoding apparatus as claimed in claim 30 , wherein the encoding unit performs the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matches division boundaries of the background data and the mask data.

Claim 39

35 . The encoding apparatus as claimed in claim 31 , wherein the encoding unit performs the JPEG2000 encoding using the tile division or the precinct division with respect to the background data, and matches division boundaries of the background data and the mask data.

Claim 40

36 . The encoding apparatus as claimed in claim 30 , wherein the encoding unit divides the background data into a plurality of region parts, independently encodes each of the region parts, and matches division boundaries of the background data and the mask data.

Claim 41

37 . The encoding apparatus as claimed in claim 31 , wherein the encoding unit divides the background data into a plurality of region parts, independently encodes each of the region parts, and matches division boundaries of the background data and the mask data.

Claim 42

38 . An encoding apparatus comprising: a data acquiring unit to acquire background data, and at least one pair of foreground data and mask data, that are obtained by decomposing original image data; an encoding unit to encode the background data, the foreground data and the mask data acquired by the data acquiring unit; and a code formation unit to form encoded data having a predetermined format by combining the background data, the foreground data and the mask data encoded by the encoding unit, wherein the encoding unit divides the mask data into a plurality of region parts, and independently encodes each of the region parts, and the code formation unit causes sharing of codes of the foreground data with codes of the plurality of region parts of the mask data.

Claim 43

38 . An encoding apparatus comprising: a data acquiring unit to acquire background data, and at least one pair of foreground data and mask data, that are obtained by decomposing original image data; an encoding unit to encode the background data, the foreground data and the mask data acquired by the data acquiring unit; and a code formation unit to form encoded data having a predetermined format by combining the background data, the foreground data and the mask data encoded by the encoding unit, wherein the encoding unit divides the mask data into a plurality of region parts, and independently encodes each of the region parts, and the code formation unit causes sharing of codes of the foreground data with codes of the plurality of region parts of the mask data.