1. A method for enhancing an image, comprising:
determining a first channel of low resolution and a second channel of high resolution based on a frame of the image;
applying a transformation function to the second channel to compute a low-resolution second channel;
determining a correlation between the low-resolution second channel and the first channel;
computing a high-pass second channel based at least in part on the second channel and the correlation; and
enhancing the image via scaling the first channel based at least in part on the high-pass second channel.
2. The method of claim 1, further comprising determining a predicted second channel of high resolution based on the low-resolution second channel.
3. The method of claim 2, wherein the computation of the high-pass second channel is based at least in part on a (i) difference between the second channel and the predicted second channel and (ii) the correlation.
4. The method of claim 3, further comprising determining a predicted first channel of high resolution based at least in part on the first channel.
5. The method of claim 4, wherein the scaling of the first channel is based at least in part on the predicted first channel and the high-pass second channel.
6. The method of claim 1, wherein the transformation of the second channel is based on applying a sub-sampling filter to the second channel.
7. The method of claim 1, wherein the first channel comprises a chroma channel and the second channel comprises a luma channel.
8. The method of claim 7, further comprising modifying the correlation based at least in part on whether a correlation between chroma and luma exists.
9. A device for enhancing an image, comprising:
an input interface configured to receive a frame of the image;
a memory unit configured to store the frame; and
a processor operatively coupled to the memory unit and the input interface and configured to:
determine a first channel of low resolution and a second channel of high resolution based on the frame;
apply a transformation function to the second channel to compute a low-resolution second channel;
determine a correlation between the low-resolution second channel and the first channel;
compute a high-pass second channel based at least in part on the second channel and the correlation; and
enhance the image via scaling the first channel based at least in part on the high-pass second channel.
10. The device of claim 9, wherein the processor is further configured to determine a predicted second channel of high resolution based on the low-resolution second channel.
11. The device of claim 10, wherein the computation of the high-pass second channel is based at least in part on a (i) difference between the second channel and the predicted second channel and (ii) the correlation.
12. The device of claim 11, wherein the processor is further configured to determine a predicted first channel of high resolution based at least in part on the first channel.
13. The device of claim 12, wherein the scaling of the first channel is based at least in part on the predicted first channel and the high-pass second channel.
14. An apparatus, comprising:
means for determining a first channel of low resolution and a second channel of high resolution based on a frame of an image;
means for applying a transformation function to the second channel to compute a low-resolution second channel;
means for determining a correlation between the low-resolution second channel and the first channel;
means for computing a high-pass second channel based at least in part on the second channel and the correlation; and
means for scaling the first channel based at least in part on the high-pass second channel.
15. The apparatus of claim 14, further comprising means for determining a predicted second channel of high resolution based on the low-resolution second channel.
16. The apparatus of claim 15, further comprising means for computing the high-pass second channel based at least in part on a (i) difference between the second channel and the predicted second channel and (ii) the correlation.
17. The apparatus of claim 16, further comprising means for determining a predicted first channel of high resolution based at least in part on the first channel.
18. The apparatus of claim 17, further comprising means for scaling the first channel based at least in part on the predicted first channel and the high-pass second channel.
19. A non-transitory computer readable medium comprising code that, when executed, causes an apparatus to perform a process comprising:
determining a first channel of low resolution and a second channel of high resolution based on a frame of an image;
applying a transformation function to the second channel to compute a low-resolution second channel;
determining a correlation between the low-resolution second channel and the first channel;
computing a high-pass second channel based at least in part on the second channel and the correlation; and
enhancing the image via scaling the first channel based at least in part on the high-pass second channel.
20. The non-transitory computer readable medium of claim 19, further comprising code that, when executed, causes the apparatus to scale the first channel based on:
determining a predicted second channel of high resolution based on the low-resolution second channel; and
computing of the high-pass second channel is based at least in part on a (i) difference between the second channel and the predicted second channel and (ii) the correlation.
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. An arrangement configured to connect an evener bar of a thrust mount device, transferring thrust loads generated by an aircraft engine, onto a rigid structure of an engine mount, the arrangement comprising:
a bracket configured to be fixedly mounted on the rigid structure and through which a first pin system passageway passes extending along a first longitudinal axis; and
a pin system passing through the first pin system passageway,
wherein the pin system is slidingly mounted in the first passageway so that the pin system can be moved along the first longitudinal axis in a first direction from a normal extended position in which the pin system projects sufficiently with respect to the bracket so that the pin system can cooperate with the evener bar, to a retracted position in which the pin system is retracted within the same bracket, and conversely in a second direction from the retracted position to the normal extended position; and
wherein the arrangement further comprises a pin extending member carried internally by the pin system and configured to be moved parallel to the first longitudinal axis, in the second direction from a normal retracted position in which the pin extending member is retracted within the pin system, to an extended position in which the pin extending member is joined to the pin system and projects beyond the pin system, and conversely in the first direction from the extended position to the normal retracted position.
2. An arrangement according to claim 1, wherein the pin system includes abutment means used to block the pin system in translation in the second direction relative to the bracket, when the pin system lies in its normal extended position.
3. An arrangement according to claim 2, wherein the abutment means include a shoulder provided on the pin system.
4. An arrangement according to claim 1, further comprising a guide member for the pin system, secured to the bracket.
5. An arrangement according to claim 4, wherein the guide member includes an abutment configured to block the pin system in translation in the first direction relative to the bracket.
6. An arrangement according to claim 4, wherein the guide member is configured to prevent rotation of the pin system about the first longitudinal axis during translation movement of the pin system along the first longitudinal axis.
7. An arrangement according to claim 1, wherein the pin extending member includes a screw mounted on the pin system, the screw entering the pin system.
8. An arrangement according to claim 7, wherein the screw is arranged along the first longitudinal axis.
9. An arrangement according to claim 1, wherein the pin system comprises an inner pin and an outer pin that are concentric, the inner and outer pins being secured to each other and the inner pin being hollow to house the pin extending member.
10. A thrust mount device transferring thrust loads generated by an aircraft engine, the device configured to be positioned between the engine and a rigid structure of an engine mount, and comprising:
an arrangement according to claim 1;
two side thrust links each comprising one forward end configured to be connected to the engine, and one aft end; and
an evener bar on which the two aft ends of side thrust links are pivoted, a second pin system passageway passing through the evener bar and extending along a second longitudinal axis merging with the first longitudinal axis, the pin system of the arrangement passing through the second passageway.
11. A thrust mount device according to claim 10, further comprising dismountable means to block the pin system in translation, preventing translational movement of the pin system through the first and second passageways in the first direction.
12. A thrust mount device according to claim 11, wherein the dismountable means for blocking in translation include a nut screwed onto the pin system and bearing upon the evener bar.
13. An engine mount for an engine configured to be inserted between an aircraft wing and the engine, the engine mount comprising:
a rigid structure and mounting means to mount the engine on the rigid structure, the mounting means comprising a thrust mount device transferring thrust loads generated by the engine according to claim 10.
14. An engine mount according to claim 13, wherein the mounting means further comprises a forward attachment fixed to a first point of the rigid structure, and an aft attachment fixed to a second point of the rigid structure, and wherein the thrust mount device is fixed to the rigid structure at a third point separate from the first and second points.
15. An engine mount according to claim 13, wherein the pin system is positioned at an angle relative to a vertical direction of the engine mount.
16. An engine mount according to claim 15, wherein the pin system extends towards the aft away from the rigid structure.
17. A method to mount an aircraft engine on a rigid structure of an engine mount according to claim 13, comprising:
assembling the evener bar, previously connected to the engine via links, onto the arrangement previously mounted on the rigid structure, the assembling comprising:
moving the pin extending member in the second direction relative to the pin system lying in its retracted position, so that the pin extending member passes through the second passageway provided on the evener bar until the pin extending member reaches its extended position; and
setting in movement the pin extending member to cause displacement of the pin system through the first and second pin system passageways towards its normal extended position.
18. A mounting method according to claim 17, wherein prior to the assembling the evener bar, the pin system is moved from its normal extended position to its retracted position by bearing against the evener bar when lifting the engine towards its final position relative to the engine mount.
19. A mounting method according to claim 17, wherein the assembling the evener bar is preceded by mounting a forward engine attachment and mounting an aft engine attachment.
20. A mounting method according to claim 17, wherein the setting the pin extending member in movement so as to cause displacement of the pin system through the first and second passageways is performed using tooling having opposite bearing points on the evener bar and on the pin extending member respectively, and by rotating the pin extending member in a form of a screw cooperating with the pin system.
21. A mounting method according to claim 17, wherein the setting the pin extending member in movement so as to cause displacement of the pin system through the first and second passageways is performed using an olive-shaped guide mounted on one end of the pin system.