Systems and methods for applying a residual error image

1. A method for updating an image, the method comprising:

receiving a current image and a residual error image, the residual error image containing pixel value differences between the current image and an updated image;

generating a positive residual error image from the residual error image, the positive residual error image having a zero in place of each corresponding pixel value in the residual error image that is negative and a corresponding positive value of each corresponding pixel value in the residual error image that is positive;

generating a negative residual error image from the residual error image, the negative residual error image having a zero in place of each corresponding pixel value in the residual error image that is positive and a corresponding absolute value of each corresponding pixel value in the residual error image that is negative;

adding the positive residual error image to the current image to generate a partially updated image;

xoring the partially updated image to generate an inverse image;

adding the negative residual error image to the inverse image to generate an updated inverse image; and

xoring the inverse image to revert the inverse image to generate the updated image.

2. The method of claim 1 , wherein a client receives the generated positive residual image and the generated negative residual image from a server, and wherein the client adds the positive error image and the negative error image to the current image to generate the updated image.

3. The method of claim 1 , further comprising:

generating, from the residual error image, an absolute value residual image that includes an absolute value of the pixel value differences between the current image and the updated image; and

receiving a Portable Network Graphics (PNG) image with a 1-bit mask such that positive error pixel values and negative error pixel values from the absolute value residual image can be deconstructed from the generated image.

4. A method of claim 3 , wherein a server generates the absolute value residual image, and wherein a client receives the absolute value residual image and the PNG image from the server.

5. A method of claim 4 , wherein the client generates the positive residual error image and the negative residual error image from the deconstructed absolute value residual image.

6. A method of claim 5 , wherein the client adds the generated positive error image and the generated negative error image to the current image to generate the updated image.

7. A non-transitory computer readable storage medium having stored therein a computer program for updating an image, wherein a computer system executing the computer program carries out the steps of:

receiving a current image and a residual error image, the residual error image containing pixel value differences between the current image and an updated image;

generating a positive residual error image from the residual error image, the positive residual error image having a zero in place of each corresponding pixel value in the residual error image that is negative, and a corresponding positive value of each corresponding pixel value in the residual error image that is positive;

generating a negative residual error image from the residual error image, the negative residual error image having a zero in place of each corresponding pixel value in the residual error image that is positive, and a corresponding absolute value of each corresponding pixel value in the residual error image that is negative;

adding the positive residual error image to the current image to generate a partially updated image;

xoring the partially updated image to generate an inverse image;

adding the negative residual error image to the inverse image to generate an updated inverse image; and

xoring the inverse image to revert the inverse image to generate the updated image.

8. The non-transitory computer readable storage medium of claim 7 , wherein a client receives the generated positive residual image and the generated negative residual image from a server, and wherein the client adds the positive error image and the negative error image to the current image to generate the updated image.

9. The non-transitory computer readable storage medium of claim 7 , wherein the computer system executing the computer program further carries out the steps of:

generating, from the residual error image, an absolute value residual image that includes an absolute value of the pixel value differences between the current image and the updated image; and

receiving a Portable Network Graphics (PNG) image with a 1-bit mask such that positive error pixel values and negative error pixel values from the absolute value residual image can be deconstructed from the generated image.

10. The non-transitory computer readable storage medium of claim 9 , wherein a server generates the absolute value residual image, and wherein a client receives the absolute value residual image and the PNG image from the server.

11. The non-transitory computer readable storage medium of claim 10 , wherein the client generates the positive residual error image and the negative residual error image from the deconstructed absolute value residual image.

12. The non-transitory computer readable storage medium of claim 11 , wherein the client adds the generated positive error image and the generated negative error image to the current image to generate the updated image.

13. A system for updating an image, the system comprising:

a server configured to:

receive a current image and a residual error image, the residual error image containing pixel value differences between the current image and an updated image;

generate a positive residual error image from the residual error image, the positive residual error image having a zero in place of each corresponding pixel value in the residual error image that is negative, and a corresponding positive value of each corresponding pixel value in the residual error image that is positive; and

generate a negative residual error image from the residual error image, the negative residual error image having a zero in place of each corresponding pixel value in the residual error image that is positive, and a corresponding absolute value of each corresponding pixel value in the residual error image that is negative; and

a client in communication with the server, the client configured to:

receive the positive residual error image and the negative residual error image;

add the positive residual error image to the current image to generate a partially updated image;

xor the partially updated image to generate an inverse image;

add the negative residual error image to the inverse image to generate an updated inverse image; and

xor the inverse image to revert the inverse image to generate the updated image.

14. The system of claim 13 , wherein the server is further configured to generate the residual error image.

15. The system of claim 14 , wherein generating the residual error image comprises:

accessing a reference frame of a video;

separating the reference frame into a plurality of macro-blocks of pixels;

determining which of the reference frame macro-blocks substantially match a macro-block from another frame of the video; and

generating the residual error image by subtracting pixel values in each of the reference frame macro-blocks from pixel values in corresponding substantially matching macro-blocks.

16. The system of claim 15 , wherein generating the residual error image further comprises:

for each of the reference macro-blocks that substantially matches a macro-block from another frame of the video:

subtracting pixel values in the reference frame macro-block from pixel values in a corresponding matching macro-block;

receiving negative error pixel values and positive error pixel values as a result of the subtracting; and

generating the residual error image that includes the positive error pixel values and the negative error pixel values.

17. A system for updating an image, the system comprising:

a server configured to:

receive a current image;

access a residual error image, the residual error image containing pixel value differences between the current image and an updated image; and

generate, from the residual error image, an absolute value residual image that includes an absolute value of the pixel value differences between the current image and the updated image; and

a client in communication with the server, the client configured to:

receive the absolute value residual image;

receive a Portable Network Graphics (PNG) image with a 1-bit mask;

deconstruct the absolute value residual image using the PNG image;

identify the positive error pixel values and the negative error pixel values from the deconstructed absolute value residual image;

generate a positive residual error image from the positive error pixel values, the positive residual error image having a zero in place of each corresponding pixel value in the residual error image that is negative, and a corresponding positive value of each corresponding pixel value in the residual error image that is positive;

generate a negative residual error image from the negative error pixel values, the negative residual error image having a zero in place of each corresponding pixel value in the residual error image that is positive, and a corresponding absolute value of each corresponding pixel value in the residual error image that is negative;

add the positive residual error image to the current image to generate a partially updated image;

xor the partially updated image to generate an inverse image;

add the negative residual error image to the inverse image to generate an updated inverse image; and

xor the inverse image to revert the inverse image to generate the updated image.

18. The system of claim 17 , wherein the server is further configured to generate the residual error image.

19. The system of claim 18 , wherein generating the residual error image comprises:

accessing a reference frame of a video;

separating the reference frame into a plurality of macro-blocks of pixels;

determining which of the reference frame macro-blocks substantially match a macro-block from another frame of the video; and

generating the residual error image by subtracting pixel values in each of the reference frame macro-blocks from pixel values in corresponding substantially matching macro-blocks.

20. The system of claim 19 , wherein generating the residual error image further comprises:

for each of the reference macro-blocks that substantially matches a macro-block from another frame of the video:

subtracting pixel values in the reference frame macro-block from pixel values in a corresponding matching macro-block;

receiving negative error pixel values and positive error pixel values as a result of the subtracting; and

generating the residual error image that includes the positive error pixel values and the negative error pixel values.