1. A fat comprising a mixture of triglycerides, characterised in that
2.5 to 5.5 wt. % of the triglycerides are HHH triglycerides,
25 to 65 wt. %, preferably 25 to 55 wt. % of the HHH triglycerides are monoacid triglycerides and the remaining HHH triglycerides are composed of mixed fatty acid residues,
1.5 to 5 wt. % of the triglycerides are HHM and HMH triglycerides,
at least 85 wt. % of the fatty acid residues H in HHM and HMH are palmitic acid residues,
where H denotes saturated fatty acid residues having chain lengths larger than 15 carbon atoms and M denotes saturated fatty acid residues having chain lengths of either 12 or 14 carbon atoms and where the M-residue is placed either in the middle or in one of the terminal positions.
2. A process suited for the preparation of the triglyceride fat according to claim 1, comprising incorporating in a triglyceride oil a fat A and a fat B where the fat A and the fat B together amount to 6-15 wt. % of the fat and the AB weight ratio is in the range 19 to 46,
characterized in that of fat A
at least 50 wt. % of the triglycerides are fully saturated
at least 80 wt. % of the constituting saturated fatty acid residues have a chain length of 16 carbon atoms (P) or 18 carbon atoms (S), the ratio P:S being in the range 75:25-25:75,
up to 5 wt. % of the saturated fatty acid residues have a chain length of 12 or 14 carbon atoms
and in that of fat B
at least 20 wt. %, preferably at least 25 wt. % of the triglycerides consist of HHM and HMH triglycerides in which H and M are as defined in claim 1.
3. Process according to claim 2, characterized in that fat A is obtained by
1. Selecting a fat which contains >20 wt. % of stearic acid and a fat which contains >20 wt. % of palmitic acid,
2. Blending both fats in such ratio that the blend complies with the PS ratio of claim 2,
3. Subjecting the blend to interesterification,
4. Subjecting the interesterified fat to fractionation under such conditions that the composition of the collected stearin complies with the fat A specifications of claim 2.
4. Process according to claim 2, characterized in that fat A is obtained by
1. Selecting a fat which contains >20 wt. % of stearic acid and a fat which contains >20 wt. % of palmitic acid,
2. Fractionating the high stearin fat andor the high palmitic fat,
3. Blending the high stearin fat and the high palmitic fat at least one of these being a fractionated fat,
4. Interesterifying the blend,
5. Optionally, fractionating the interesterified fat, the conditions for blending and for the fractionation of step 2 and step 4 being chosen such that the composition of the stearin collected after step 4 complies with the fat A specifications of claim 2.
5. Process according to claim 2, where in fat B the wt. ratio of oleic acid and linoleic acid residues is more than 3.
6. Process according to claim 1, where either fat A or fat B or both are non-hydrogenated fats.
7. Process according to claim 1, where either fat A or fat B or both are enzymatically interesterified fats.
8. Process according to claim 1, where either fat A or fat B or both have been obtained without the use of wet fractionation
9. Process for the preparation of an edible WO emulsion spread comprising the steps
emulsifying 50-80 wt. % of an aqueous phase with 20-50 wt. % of a fat phase and
cooling and working the emulsion to obtain a spreadable emulsion, characterized in that a fat phase is used as specified in claim 1.
10. Process according to claim 1, characterized in that the emulsion is prepared with 60-80 wt. % of an aqueous phase and 2040 wt. % of a fat phase, preferably with 60-70 wt. % of an aqueous phase and 3040 wt. % of a fat phase.
11. Spread obtained according to claim 1, characterized in that the content of saturated fatty acid residues on total fat phase is less than 25 wt. %, preferably less than 20 wt. %.
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 of surveillance comprising the steps of:
obtaining image data of a scene, the image data including depth data providing depth information,
processing the depth data to identify potential head object(s), that may represent head(s) of persons in the scene, and
processing the image data to discount objects within a predetermined lateral distance of potential head objects.
2. The method in accordance with claim 1, further comprising the step of identifying the remaining potential head object(s) as head objects representing the heads of persons in the scene.
3. The method in accordance with or claim 2, wherein the image data comprises a video feed, and the method comprises the further step of processing the image data to track motion of one or more identified head objects.
4. The method in accordance with claim 3, further comprising the step of analysing the motion of a head object and determining the behaviour of a person represented by the head object.
5. An apparatus for surveillance, comprising:
an image sensor arranged to obtain image data of a scene, the image data including depth data providing depth information, and
a processor arranged to process the depth data to identify potential head objects that may represent heads of persons in the scene, the processor being arranged to process the image data to discount objects within a predetermined distance of potential head objects.
6. The apparatus in accordance with claim 5, wherein the image sensor is a 3-dimensional camera.
7. The apparatus in accordance with claim 6, wherein the processor is arranged to provide a count of the head objects, to provide a count of the persons in the scene.
8. The apparatus in accordance with claim 7, wherein the image sensor is a video camera and the image data comprises a video feed, the processor being arranged to track motion of head objects in order to track motion of persons within the scene.
9. The apparatus in accordance with claim 8, wherein the processor is arranged to determine behaviour of the persons being tracked, on the basis of their motion.
10. A computer-readable medium having computer executable instructions for performing a method comprising:
obtaining image data of a scene, the image data including depth data providing depth information,
processing the depth data to identify potential head object(s), that may represent head(s) of persons in the scene, and
processing the image data to discount objects within a predetermined lateral distance of potential head objects.
11. The computer-readable medium in accordance with claim 10 storing a computer program having the computer executable instructions.
12. The computer-readable medium in accordance with claim 10 included in a data signal.
13. A method of surveillance, comprising the steps of:
obtaining image data of the scene, the image data including depth data providing depth information,
processing the image data to identify objects, and
utilising the image data and depth data to determine the behaviour of objects in the scene.
14. An apparatus for object surveillance, the apparatus comprising:
an image sensor arranged to obtain image data of a scene, the image data including depth data providing depth information, and
a processor arranged to process the depth data to identify objects, and to analyse the objects to determine behaviour.
15. A computer-readable medium having computer executable instructions for performing a method comprising:
obtaining image data of the scene, the image data including depth data providing depth information,
processing the image data to identify objects, and
utilising the image data and depth data to determine the behaviour of objects in the scene.
16. The computer-readable medium in accordance with claim 15 storing a computer program having the computer executable instructions.
17. The computer-readable medium in accordance with claim 15 included in a data signal.
18. A method of surveillance, comprising the steps of:
obtaining image data of the scene, the image data including depth data providing depth information,
processing the image data to identify potential head objects of persons, and
further processing the image data to identify relative rapid motion of limbs.
19. The method in accordance with claim 18, wherein relatively rapid limb motion is determined by processing the image data to identify relatively rapid motion of groups of pixels adjacent the identified head object.
20. An apparatus for surveillance, the apparatus comprising:
an image sensor arranged to obtain image data of a scene, the image data including depth data providing depth information, and
a processor arranged to process the depth data to identify potential head objects, and to process the image data to identify relative rapid motion of limbs.
21. The apparatus in accordance with claim 20, wherein the processor is arranged to determine relative rapid limb motion by processing the image data to identify relatively rapid motion of groups of pixels adjacent the identified head object.
22. A computer-readable medium having computer executable instructions for performing a method comprising:
obtaining image data of the scene, the image data including depth data providing depth information,
processing the image data to identify potential head objects of persons, and
further processing the image data to identify relative rapid motion of limbs.
23. The computer-readable medium in accordance with claim 22 storing a computer program having the computer executable instructions.
24. The computer-readable medium in accordance with claim 22 included in a data signal.