1. A method for building a three-dimensional composite scene, the method comprising:
acquiring shape and visual appearance metrics from a plurality of three-dimensional scenes;
generating possible alignments for a pair of three-dimensional scenes from the plurality of three-dimensional scenes;
evaluating the possible alignments for the pair of three-dimensional scenes using the shape and visual appearance metrics; and
creating an alignment of multiple three-dimensional scenes based on the evaluation of a plurality of possible alignments.
2. The method of claim 1, wherein the acquisition of shape and visual appearance metrics is the result of data capture.
3. The method of claim 1, wherein the acquisition of shape and visual appearance metrics is the result of a derivation operation.
4. A method for filling holes in a three-dimensional scene, the method comprising:
capturing three-dimensional data;
aligning the captured three-dimensional data;
identifying a hole in the aligned three-dimensional data; and
filling the hole in the aligned three-dimensional data.
5. The method of claim 4, wherein the hole is missing three-dimensional data.
6. The method of claim 4, wherein the hole is three-dimensional data of a particular quality.
7. The method of claim 4, further comprising displaying the identified holes to a user to allow for the subsequent filling of the hole.
8. The method of claim 7, wherein the user is prompted to capture new three-dimensional data to fill the identified holes.
9. The method of claim 8, wherein the new three-dimensional data is merged with the originally captured three-dimensional data.
10. The method of claim 8, further comprising providing feedback to the user as to whether the identified holes have been filled.
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 process for making a compounded synthetic polyisoprene latex suitable for making a latex film, which process comprises (a) compounding a synthetic polyisoprene latex with suitable compounding ingredients, (b) maturing the latex and optionally (c) storing the latex; wherein steps (a), (b) and (c) if included are carried out at low temperature so as to minimize pre-vulcanization of the latex.
2. A process for making a synthetic polyisoprene condom, which process comprises dipping a suitably shaped former into a compounded synthetic polyisoprene latex and vulcanising the latex to form a condom, characterised in that during preparation and optional storage the latex is maintained at low temperature so as to minimize pre-vulcanization of the latex.
3. A process according to claim 2 wherein the compounded synthetic polyisoprene latex is prepared by a process comprising (a) compounding a synthetic polyisoprene latex with suitable compounding ingredients, (b) maturing the latex and optionally Cc) storing the latex; wherein steps (a), (b) and (c) if included are carried out at low temperature so as to minimize pre-vulcanization of the latex.
4. A process according to claim 2 wherein the synthetic polyisoprene latex is maintained at low temperature during compounding of the latex, maturation, storage in the reserve tanks, transfer to the dipping line and so far as possible during dipping, up until the point of vulcanization.
5. A process according to claim 1 wherein the latex is maintained at or cooled to a temperature of less than 20\xb0 C.
6. A process according to claim 5 wherein the latex is maintained at or cooled to a temperature of about 17\xb0 C. or less.
7. A process according to claim 6 wherein the latex is maintained at or cooled to a temperature of about 15\xb0 C. or less.
8. A process according to claim 6 wherein the latex is maintained at or cooled to a temperature of about 15\xb0 C.\xb12\xb0 C.
9. A process according to claim 8 wherein during all stages prior to vulcanization, the latex is maintained at about 15\xb0 C.\xb12\xb0 C.
10. A process according to claim 1, wherein the temperature is such that the PRM of the latex is about 0.1 MPa or less.
11. A process according to claim 10, wherein the temperature is such that the PRM of the latex is from about 0.08 to 0.10 MPa.
12. A process according to claim 1 wherein the latex is matured for about 24 to about 48 hours.
13. A process according to claim 1 wherein the maturation time is no longer than results in a PRM of the latex of about 0.1 MPa or less.
14. A process according to claim 12 wherein the maturation time is no longer than results in a PRM of about 0.08 to 0.1 MPa.
15. A process according to claim 2 wherein dipping is carried out with no coagulation of the latex.
16. A process according to claim 2 wherein dipping is done at least twice.
17. A process according to claim 15 wherein the latex is cooled between dips.
18. A process according to claim 1, wherein a single accelerator is used.
19. A process according to claim 18 wherein the accelerator is a dithiocarbamate.
20. A process according to claim 19 wherein the accelerator is zinc dibutyldithiocarbamate.
21. A synthetic polyisoprene condom comprising one or more physical properties selected from
(a) an initial tensile strength of 30 MPa or above, or a tensile strength of 23 MPa or above after ageing for 28 days at 70\xb0 C., or a tensile strength of 27 MPa or above after ageing for 6 months at 50\xb0 C.;
(b) an initial burst pressure of 1.7 kPa or above, or a burst pressure of 1.3 kPa or above after ageing for 28 days at 70\xb0 C., or a burst pressure of 1.5 kPa or above after ageing for 6 months at 50\xb0 C.;
(c) an initial burst volume of 55 dm3 or above, or a burst volume of 55 dm3 or above after 28 days ageing at 70\xb0 C., or a burst volume of 45 dm3 or above after ageing for 6 months at 50\xb0 C. or above; or
(d) an initial elongation-at break value of 1000% or above, or an elongation-at-break value of 1000% or above after ageing for 28 days at 70\xb0 C. or for 6 months at 50\xb0 C.
22. A condom according to claim 21 which condom comprises two or more of properties (a), (b), (c) and (d).
23. A condom according to claim 21 which condom comprises three or more of properties (a), (b), (c) and (d).
24. A condom according to claim 21 which condom comprises properties (a), (b), (c) and (d).
25. A latex film article obtainable from a compounded synthetic polyisoprene latex made by a process according to claim 1.
26. A latex film article according to claim 25, which article is a condom.
27. A condom obtainable by a process according to claim 2.
28. A method for making a latex film article, comprising forming a compounded latex made by a process according to claim 1 into the latex film article.
29. The method according to claim 28 wherein the latex film article is a condom.