1. Method of rendering visual information, which method comprises receiving image information,
receiving secondary image information to be rendered in combination with the image information, and
processing the image information and the secondary image information for generating output information to be rendered in a three-dimensional space,
the output information being arranged for display on a 3D display (53) having a display depth range (44), and the processing comprising
detecting an image depth range of the image information,
detecting a secondary depth range of the secondary visual information,
determining, in the display depth range, a first sub-range (43) and second sub-range (41), which first sub-range and second sub-range are non-overlapping, and
accommodating the image depth range in the first sub-range and accommodating the secondary depth range in the second sub-range.
2. Method as claimed in claim 1, wherein said accommodating comprises compressing the image depth range to fit in the first sub-range, andor compressing the secondary depth range to fit in the second sub-range.
3. Method as claimed in claim 1, wherein the output information includes image data and a depth map for positioning the image data along the depth dimension of the 3D display according to depth values, and the method comprises determining, in the depth map, a first sub-range of depth values and second sub-range of depth values as the first sub-range and the second sub-range.
4. Method as claimed in claim 1, wherein said receiving the secondary image information comprises receiving a trigger for generating graphical objects having a depth property when rendered, and the accommodating comprises adjusting generating the graphical objects to fit the depth property in the second sub-range.
5. Method as claimed in claim 1, wherein the method comprises detecting a period in which no secondary information is to be rendered, and, in the detected period, accommodating the image depth range in the display depth range.
6. Method as claimed in claim 1, wherein the method comprises filtering the image information, or filtering the secondary image information, for increasing a visual difference between the image information and the secondary image information.
7. Method as claimed in claim 1, wherein the method comprises determining, in the display depth range, a third sub-range, which is non-overlapping with the first sub-range and second sub-range, for displaying additional image information, in a particular case the additional information being two dimensional information to be rendered on a plane in the third sub-range.
8. Method as claimed in claim 2, wherein the image information is video information and the secondary image information is graphics, and said compressing includes moving the video depth range backwards to make room for the second sub-range for rendering the graphics.
9. Device for rendering visual information, the device comprising input means (51) for
receiving image information, and
receiving secondary image information to be rendered in combination with the image information, and
processing means (52) for processing the image information and the secondary image information for generating output information (56) to be rendered in a three-dimensional space,
the processing means being arranged for
generating the output information for display on a 3D display (53) having a display depth range (44),
detecting an image depth range of the image information,
detecting a secondary depth range of the secondary visual information,
determining, in the display depth range, a first sub-range (43) and second sub-range (41), which first sub-range and second sub-range are non-overlapping, and
accommodating the image depth range in the first sub-range and accommodating the secondary depth range in the second sub-range.
10. Device as claimed in claim 9, wherein the input means (51) comprises an optical disc unit (58) for retrieving the image information from an optical disc.
11. Device as claimed in claim 9, wherein the device comprises the 3D display (53) for displaying the image information in combination with the secondary image information along the display depth range.
12. Computer program product for rendering visual information, which program is operative to cause a processor to perform the method as claimed in claim 8.
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 method for reducing the total concentration of barium in a source of ground water which comprises the steps of: extracting the ground water from the source thereof; and contacting the extracted water with an effective amount of sulfuric acid.
2. The method of claim 1, wherein the sulfuric acid is concentrated sulfuric acid.
3. The method of claim 2, wherein the concentrated sulfuric acid contains greater than 93% sulfuric acid.
4. The method of claim 1, further comprising the step of allowing the water to stand for a chosen period of time after said step of contacting the water with sulfuric acid.
5. The method of claim 1, wherein the ground water is generated as a bi-product of coal-bed methane production.
6. The method of claim 1, wherein the total barium concentration in the water is reduced to below 1800 \u03bcgL.
7. The method of claim 1, wherein the pH of the water is maintained between 6.5 and 8.5 after said step of contacting the water with sulfuric acid.
8. The method of claim 7, wherein the pH of the water is between 6.5 and 7.0 after said step of contacting the water with sulfuric acid.
9. The method of claim 1, wherein said step of contacting the water with sulfuric acid is achieved by mixing the sulfuric acid with water flowing in a pipe.
10. The method of claim 9, wherein the concentration of sulfuric acid is between 60 mgL and 300 mgL.
11. The method of claim 1, further including the step of filtering the water after said step of contacting the extracted water with an effective amount of sulfuric acid.
12. The method of claim 1, wherein said method is used as a pretreatment for water undergoing further purification using methods selected from the group consisting of cation exchange and reverse osmosis.
13. A method for reducing the total barium concentration, the concentration of bicarbonate ions and for reducing the pH of a source of ground water, which comprises the steps of extracting the water from the source thereof; and mixing the extracted water with an effective amount of sulfuric acid.
14. The method of claim 13, wherein the sulfuric acid is concentrated sulfuric acid.
15. The method of claim 14, wherein the concentrated sulfuric acid contains greater than 93% sulfuric acid.
16. The method of claim 13, further comprising the step of allowing the water to stand for a chosen period of time after said step of contacting the water with sulfuric acid.
17. The method of claim 13, wherein the ground water is generated as a bi-product of coal-bed methane production.
18. The method of claim 13, wherein the barium ion concentration in the water is reduced to below 1800 \u03bcgL.
19. The method of claim 13, wherein the pH of the water is maintained between 6.5 and 8.5 after said step of contacting the water with sulfuric acid.
20. The method of claim 19, wherein the pH of the water is between 6.5 and 7.0 after said step of contacting the water with sulfuric acid.
21. The method of claim 13, wherein said step of contacting the water with sulfuric acid is achieved by mixing the sulfuric acid with water flowing in a pipe.
22. The method of claim 21, wherein the concentration of sulfuric acid is between 60 and 300 mgL.
23. The method of claim 13, further including the step of filtering the water after said step of contacting the extracted water with an effective amount of sulfuric acid.
24. The method of claim 13, wherein said method is used as a pretreatment for water undergoing further purification using methods selected from the group consisting of cation exchange and reverse osmosis.
25. A method for reducing the concentration of barium ions in a source of ground water which comprises the steps of: extracting the ground water from the source thereof; and contacting the extracted water with an effective amount of sulfuric acid.
26. The method of claim 25, wherein the sulfuric acid is concentrated sulfuric acid.
27. The method of claim 26, wherein the concentrated sulfuric acid contains greater than 93% sulfuric acid.
28. The method of claim 25, further comprising the step of allowing the water to stand for a chosen period of time after said step of contacting the extracted water with sulfuric acid.
29. The method of claim 25, wherein the ground water is generated as a bi-product of coal-bed methane production.
30. The method of claim 25, wherein the total barium concentration in the water is reduced to below 1800 \u03bcgL.
31. The method of claim 25, wherein the pH of the water is maintained between 6.5 and 8.5 after said step of contacting the water with sulfuric acid.
32. The method of claim 31, wherein the pH of the water is between 6.5 and 7.0 after said step of contacting the water with sulfuric acid.
33. The method of claim 25, wherein said step of contacting the water with sulfuric acid is achieved by mixing the sulfuric acid with water flowing in a pipe.
34. The method of claim 33, wherein the concentration of sulfuric acid is between 60 and 300 mgL.
35. The method of claim 25, further including the step of filtering the water after said step of contacting the extracted water with an effective amount of sulfuric acid.
36. The method of claim 25, wherein said method is used as a pretreatment for water undergoing further purification using methods selected from the group consisting of cation exchange and reverse osmosis.