Ghost-compensation for improved stereoscopic images
View Patent ↗A method and system for reducing visual ghost artifacts in plano-stereoscopic image transmissions is provided. Such visual ghost artifacts are reduced by retrieving a non-linear image representation comprising left and right image representations using an image processor, where each of the left and right image representations have a plurality of color component sub-images. The non-linear left and right image representations are transformed into respective linear left and right image representations. A left or right image compensation signal is generated by applying the determined at least one ghosting coefficient to its associated one of the plurality of color component sub-images. A respective compensated right or left image is generated by subtracting the left or right image compensation signal from the uncompensated linear left or right image representation.
1. A method for reducing visual ghost artifacts in plano-stereoscopic image transmissions using an image processing system, wherein the image transmissions are of a certain image field and wherein the image transmissions have a plurality of color component sub-images and wherein the plano-stereoscopic image transmissions originate from or pass through a device that provides ghost artifact compensation, and further wherein at least one ghosting coefficient has been determined for compensating at least one of the plurality of color component sub-images, the method comprising:
retrieving a non-linear image representation comprising left and right image representations using an image processor, each of the left and right image representations having a plurality of color component sub-images;
transforming the non-linear left and right image representations into respective linear left and right image representations using the image processor;
applying the determined at least one ghosting coefficient to its associated one of the plurality of color component sub-images to generate a left or right image compensation signal using the image processor; and
subtracting the left or right image compensation signal from the uncompensated linear left or right image representation using the image processor, respectively, to form a respective compensated right or left image.
2. The method of claim 1 , wherein the at least one ghosting coefficient that is applied to the associated one of the plurality of color component sub-images remains the same throughout the entire image field.
3. The method of claim 1 , wherein the at least one ghosting coefficient that is applied to the associated one of the plurality of color component sub-images is applied according to a plurality of ghosting profiles for the compensated right or left eye image, each of such ghosting profiles being associated with one of a plurality of predetermined regions of the image field.
4. The method of claim 3 , wherein at least one ghosting coefficient has a different value as applied in at least two of the plurality of ghosting profiles.
5. The method of claim 1 , wherein the plurality of color component sub-images are red, blue, and green.
6. The method of claim 5 , wherein each of the plurality of color component sub-images are compensated individually.
7. The method of claim 1 , wherein the reducing of the visual ghost artifacts is done substantially in real-time with displaying a plano-stereoscopic image including the compensated right or left image.
8. The method of claim 7 , wherein at least the subtracting occurs within a projector.
9. The method of claim 1 , wherein the reducing of the visual ghost artifacts is done as a part of a process of creating a compensated recording to be used fir later plano-stereoscopic image display.
10. The method of claim 1 , further comprising transforming the compensated right or left image into a non-linear compensated right or left image using the image processor.
11. The method of claim 1 , further comprising applying the determined at least one ghosting coefficient to generate the other of the right or left image compensation signals such that image compensation signals are generated for both the linear loft and right image representations using the image processor and subtracting the other of the right or left image compensation signals from its respective uncompensated linear left or right image representation to form a respective other compensated left or right image using the image processor.
12. A method for reducing visual ghost artifacts in plano-stereoscopic image transmissions using an image processing system, wherein the image transmissions are of a certain image field and wherein the plano-stereoscopic image transmissions originate from or pass through a device that provides ghost artifact compensation, and further wherein at least one ghosting coefficient has been determined for compensating the image transmissions, the method comprising:
retrieving non-linear image data comprising left and right image data using an image processor;
transforming the non-linear left and right image data into respective linear left and right image data using the image processor;
applying the determined at least one ghosting coefficient to the transformed linear left or right image data to generate a left or right image compensation signal using the image processor; and
subtracting the left or right image compensation signal from the uncompensated linear left or right image data using the image processor, respectively, to form respective compensated right or left image data.
13. The method of claim 12 , wherein the at least one ghosting coefficient that is applied to the transformed linear left or right image data remains the same throughout the entire image field.
14. The method of claim 12 , wherein the at least one ghosting coefficient that is applied the transformed linear left or right image data is applied according to a plurality of ghosting profiles for the compensated right or left eye image data, each of such ghosting profiles being associated with one of a plurality of predetermined regions of the image field.
15. The method of claim 14 , wherein at least one ghosting coefficient has a different value as applied in at least two of the plurality of ghosting profiles.
16. The method of claim 12 , wherein the reducing of the visual ghost artifacts is done substantially in real-time with displaying a plano-stereoscopic image including the compensated right or left image data.
17. The method of claim 16 , wherein at least the subtracting occurs within a projector.
18. The method of claim 12 , wherein the reducing of the visual ghost artifacts is done as a part of a process of creating a compensated recording to be used for later plano-stereoscopic image display.
19. The method of claim 12 , further comprising transforming the compensated right or left image data into a non-linear compensated right or left image data using the image processor.
20. The method of claim 12 , further comprising applying the determined at least one ghosting coefficient to generate the other of the right or left image compensation signals such that image compensation signals are generated for both the linear left and right image data using the image processor and subtracting the other of the right or left image compensation signals from its respective uncompensated linear left or right image data to form a respective other compensated left or right image data using the image processor.