1. An image coding apparatus, comprising:
a single bit-plane unit which reads out image data by slicing the image data for each bit-plane;
a plurality of special-purpose dividing units which classify bit-plane data read out by said bit-plane unit into different groups that said dividing units take charge of, according to predetermined properties, and then perform thereon preprocessings for coding; and
a coder which integrates data obtained as results of the preprocessings by said plurality of special-purpose dividing units and then codes the integrated data.
2. An image coding apparatus according to claim 1, wherein the preprocessings by said plurality of special-purpose dividing units are executed in parallel while a time lag is kept to a degree that cross-referencing necessary among the results of the preprocessings is made.
3. An image coding apparatus according to claim 1, wherein the preprocessing is a processing which specifies a predicted value of a next bit to be coded, and said coder performs arithmetic coding on the image data based on the predicted value.
4. An image coding apparatus according to claim 2, wherein the preprocessing is a processing which specifies a predicted value of a next bit to be coded, and said coder performs arithmetic coding on the image data based on the predicted value.
5. An image coding apparatus according to claim 1, wherein the different groups are classified from a viewpoint of how the respective different groups affect a change of the predicted value.
6. An image coding apparatus, comprising:
a converter which converts image data to data on a spatial frequency;
a quantizer which quantizes data that have been converted by said converter;
a bit-plane unit which reads out data that have been quantized by said quantizer, by slicing the quantized data for each bit-plane;
a plurality of special-purpose dividing units which classify bit-plane data read out by said bit-plane unit, into different groups that said dividing units take charge of, according to predetermined properties, and then perform thereon preprocessings for coding;
a coder which integrates data obtained by as results of the preprocessings by said plurality of special-purpose dividing units and then codes the integrated data; and
a stream generator which integrates data that have been coded by said coder, so as to generate a coded stream.
7. An image coding apparatus according to claim 1, wherein, in compliance with JPEG2000 specifications, said plurality of exclusive-use dividing units divide, in parallel, the respective bit plane data into data of different passes.
8. An image coding apparatus according to claim 6, wherein said plurality of special-purpose dividing units divide, in parallel, the respective bit plane data into data of different passes, in compliance with JPEG2000 specifications.
9. An image coding apparatus according to claim 1, wherein said plurality of special-purpose dividing units include at least first and second special-purpose dividing units which take charge of first and second groups, respectively, and wherein data of each bit-plane are processed in a manner that at a first-time scan operation the first group is first extracted by said first special-purpose dividing unit, and, at a second-time scan operation, data judged not to belong to the first group by said first special-purpose dividing unit are inputted to said second special-purpose dividing unit and the second group is extracted.
10. An image coding apparatus according to claim 9, wherein said first and second special-purpose dividing units extract data of different passes from the data of each bit-plane in compliance with JPEG2000 specifications, and a processing of said second special-purpose dividing unit is started as soon as a result of a processing of said first special-purpose dividing unit is taken over to said second special-purpose dividing unit.
11. An image coding apparatus according to claim 1, wherein said plurality of special-purpose dividing units include at least first and second special-purpose dividing units which take charge of first and second groups, respectively, and wherein data of each bit-plane are processed in a manner that at a first-time scan operation the first group is first extracted by said first special-purpose dividing unit, and at the same time a data position of at least the first group is recorded and at a second-time scan operation said second special-purpose dividing unit extracts the second group by referring to the recorded data.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A landfill site covering system comprising:
(i) a plurality of freely mobile support members, which are capable of movement along the ground in all directions,
(ii) a cable array secured to the support members to form a supporting framework,
(iii) covering material attached to the supporting framework whereby to form an enclosure,
wherein the freely mobile support members have a body section and a tracked base, and the body section and the tracked base are relatively pivotable through 360 degrees.
2. A landfill site covering system as claimed in claim 1, wherein each support member is self standing.
3. A landfill site covering system as claimed in claim 2, wherein each support member is moveable independently of the others.
4. A landfill site covering system as claimed in claim 1, wherein each support member is self-propelled.
5. A landfill site covering system as claimed in claim 1, wherein each support member comprises an arm mounted on a motorised platform.
6. A landfill site covering system as claimed in claim 1, further comprising a length of water-filled flexible hose to retain edge regions of the covering material against the ground.
7. A landfill site covering system as claimed in claim 1, wherein a first piece of covering material is arranged on top of the supporting structure to form a roof and additional pieces of covering material depend downwardly from the roof to the ground to form the sides of the enclosure.
8. A landfill site covering system as claimed in claim 1, wherein the covering material is netting.
9. A landfill site covering system as claimed in claim 1, wherein four support members are arranged at the corners of a square or rectangle with a primary cable suspended between each pair of adjacent support members.
10. A landfill site covering system as claimed in claim 9, wherein an additional primary cable extends from each support member to the centre of the enclosure with the additional primary cables being mutually connected at their free ends.
11. A landfill site covering system as claimed in claim 10, wherein secondary cables are attached to said additional primary cables parallel to the primary cables to form a plurality of concentric squares, the primary and secondary cables defining the supporting framework.