CN104869399A - Information processing method and electronic equipment. - Google Patents
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Abstract
The invention discloses information processing method and electronic equipment. The method comprises that a coded area in a reference image is rotated and/or zoomed, so that a prediction area which matches a first area of a current image is searched and obtained from the coded area; residual error and reference information of a first area image corresponding to the first area relative to a second area image corresponding to the prediction area are obtained, and the reference information comprises the rotation angle and/or the zooming proportion of rotating and/or zooming the coded area to obtain the prediction area; and according to code of the second area image, the residual error and the reference information, predicted coding is carried out on the first area image. According to the method, the more accurate residual error can be obtained, the technical problem that the efficiency of image predicted coding is low in the prior art is solved, and the efficiency of image predicted coding is improved.
Description
Technical field
The present invention relates to communication technical field, the method for particularly a kind of information processing and electronic equipment.
Background technology
Along with the development of network technology and the information transmission technology, and the raising of hardware display manufacturing process, image, video coding technique are just towards the future development of high-resolution, high compression rate.
At present, image, video coding technique mainly comprise inter prediction encoding and intraframe predictive coding.Inter prediction is one of of paramount importance technology in Video coding.Inter prediction utilizes encoded image to carry out predictive coding to needs coded image, and intraframe predictive coding is then the pixel value adopting surrounding pixel value prediction current region.
Present inventor, in the process realizing technical scheme in the embodiment of the present application, finds that prior art exists following technical problem:
No matter being worth inter prediction encoding or intraframe predictive coding, is all obtained and the encoded image of current region image similarity by search, then to the pixel value difference of current region image and similar encoded image and residual error quantizes and entropy code process.Many times, due to current region image and encoded image closely similar, but will the inefficient technical problem of residual error large, coding very be caused due to the difference of angle and ratio.Visible, there is the technical problem that code efficiency is lower during image forecasting encoding of the prior art.
Summary of the invention
The embodiment of the present invention provides a kind of information processing method and electronic equipment, there is the technical problem that code efficiency is lower during for solving image forecasting encoding in prior art, improves image forecasting encoding efficiency.
The embodiment of the present application provides a kind of information processing method, and the method comprises:
By rotating and/or convergent-divergent process region encoded in reference picture, in described encoded region, search obtains the estimation range of mating with the first area of present image;
Obtain the residual sum reference information of second area image corresponding to the relatively described estimation range of corresponding first area image, described first area, wherein, anglec of rotation when described reference information comprises that described in rotation and/or convergent-divergent, encoded region obtains described estimation range and/or scaling;
According to the coding of described second area image, described residual error and described reference information, predictive coding is carried out to described first area image.
Optionally, when described reference picture and described present image are same image, according to the coding of described second area image, described residual error and described reference information, intraframe predictive coding is carried out to described first area image;
When described reference picture and described present image are not same images, according to the coding of described second area image, described residual error and described reference information, inter prediction encoding is carried out to described first area image.
Optionally, before the described estimation range that search acquisition is mated with the first area of present image in described encoded region, described method also comprises:
Translation process is carried out to described encoded region;
Also comprise when obtaining described reference information: encoded region described in acquisition translation obtains displacement during described estimation range.
Optionally, the residual sum reference information of the second area image that the relatively described estimation range of first area image corresponding to the described first area of described acquisition is corresponding, is specially:
Described estimation range be by rotate and translation described in encoded region obtain time, calculate the first pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation and described displacement as described reference information; Or
When being obtained by encoded region described in convergent-divergent and translation in described estimation range, calculate the second pixel residual error obtained between described second area image and described first area image, and record described scaling and described displacement as described reference information.
Optionally, the residual sum reference information of the second area image that the relatively described estimation range of first area image corresponding to the described first area of described acquisition is corresponding, is specially:
Described estimation range be by rotate and convergent-divergent described in encoded region obtain time, calculate the 3rd pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation and described scaling as described reference information; Or
When by rotating, described in convergent-divergent and translation, encoded region obtains in described estimation range, calculate the 4th pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation, described scaling and described displacement as described reference information.
The embodiment of the present application also provides a kind of electronic equipment, and described electronic equipment comprises:
Search unit, for by rotating and/or convergent-divergent process region encoded in reference picture, searches for the estimation range obtaining and mate with the first area of present image in described encoded region;
Acquiring unit, for obtaining the residual sum reference information of second area image corresponding to the relatively described estimation range of corresponding first area image, described first area, wherein, anglec of rotation when described reference information comprises that described in rotation and/or convergent-divergent, encoded region obtains described estimation range and/or scaling;
Coding unit, for the coding according to described second area image, described residual error and described reference information, carries out predictive coding to described first area image.
Optionally, described coding unit specifically for:
When described reference picture and described present image are same image, according to the coding of described second area image, described residual error and described reference information, intraframe predictive coding is carried out to described first area image;
When described reference picture and described present image are not same images, according to the coding of described second area image, described residual error and described reference information, inter prediction encoding is carried out to described first area image.
Optionally, described search unit also for: before search obtains the estimation range of mating with the first area of present image in described encoded region, translation process is carried out to described encoded region;
Described acquiring unit also comprises when obtaining described reference information: encoded region described in acquisition translation obtains displacement during described estimation range.
Optionally, described acquiring unit specifically for: described estimation range be by rotate and translation described in encoded region obtain time, calculate the first pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation and described displacement as described reference information; Or
When being obtained by encoded region described in convergent-divergent and translation in described estimation range, calculate the second pixel residual error obtained between described second area image and described first area image, and record described scaling and described displacement as described reference information.
Optionally, described acquiring unit specifically for: described estimation range be by rotate and convergent-divergent described in encoded region obtain time, calculate the 3rd pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation and described scaling as described reference information; Or
When by rotating, described in convergent-divergent and translation, encoded region obtains in described estimation range, calculate the 4th pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation, described scaling and described displacement as described reference information.
Above-mentioned one or more technical scheme in the embodiment of the present application, at least has one or more technique effects following:
1, by rotating and/or convergent-divergent process region encoded in reference picture, in encoded region, search obtains the estimation range of mating with the first area of present image, the first area image in raising first area and the matching degree between the second area image in estimation range; Obtain the residual sum reference information of first area image relative second area image thus, substantially reduce residual values, wherein reference information comprises anglec of rotation when encoded region described in rotation and/or convergent-divergent obtains described estimation range and/or scaling; According to the coding of second area image, residual error and described reference information, predictive coding is carried out to first area image, thus the technical problem that the code efficiency existed when solving image forecasting encoding in prior art is lower, improve image forecasting encoding efficiency.
2, in encoded reference frame, by rotating and/or convergent-divergent, the more encoded region of translation, it is more accurate that search obtains the estimation range of mating with first area in present frame, and coding quality is higher.Further, by comparing rotation and/or convergent-divergent, then the second area image obtained behind the encoded region of translation and first area image, the pixel residual error calculating acquisition is less, further increases image forecasting encoding efficiency, reduces transmission code stream.
3, when intraframe predictive coding, search obtains the estimation range of mating with first area in encoded present frame, and the displacement recorded when the encoded region of translation obtains estimation range, and be not limited to search in the region adjacent with first area and obtain estimation range, thus obtain the higher estimation range of matching degree, improve Image Coding instruction.
Accompanying drawing explanation
The schematic flow sheet of a kind of information processing method that Fig. 1 provides for the embodiment of the present application one;
The schematic diagram of the first intraframe predictive coding that Fig. 2 provides for the embodiment of the present application one;
The schematic diagram of the second intraframe predictive coding that Fig. 3 provides for the embodiment of the present application one;
The schematic diagram of the first inter prediction encoding that Fig. 4 provides for the embodiment of the present application one;
The block diagram of a kind of electronic equipment that Fig. 5 provides for the embodiment of the present application two.
Embodiment
In the technical scheme that the embodiment of the present application provides, by rotating and/or convergent-divergent process the first area of present image, search obtains the estimation range of mating with the first area of present image in a reference image, the first area image in raising first area and the matching degree between the second area image in estimation range; Obtain the residual sum reference information of the relative second area image of first area image thus, substantially reduce residual values; According to the coding of second area image, residual error and described reference information, predictive coding is carried out to first area image, thus the technical problem that the code efficiency existed when solving image forecasting encoding in prior art is lower, improve image forecasting encoding efficiency.
Below in conjunction with accompanying drawing, the main of the embodiment of the present application technical scheme is realized principle, embodiment and be explained in detail the beneficial effect that should be able to reach.
Embodiment one
Please refer to Fig. 1, the embodiment of the present application provides a kind of information processing method, and the method comprises:
S101: by rotating and/or convergent-divergent process region encoded in reference picture, search obtains the estimation range of mating with the first area of present image in a reference image;
S102: the residual sum reference information obtaining second area image corresponding to the relatively described estimation range of corresponding first area image, described first area, wherein, anglec of rotation when described reference information comprises that described in rotation and/or convergent-divergent, encoded region obtains described estimation range and/or scaling;
S103: according to the coding of described second area image, described residual error and described reference information, carries out predictive coding to described first area image.
In specific implementation process, image forecasting encoding comprises inter prediction encoding and intraframe predictive coding, no matter that inter prediction encoding or intraframe predictive coding are before execution S101, first can become different regions to present image to be encoded according to certain regular partition, Region dividing can not certainly be carried out overall predictive coding is carried out to present image.But the probability occurred due to two whole similar images is very little, does not usually adopt overall predictive coding.It should be noted that, the embodiment of the present application does not limit the division rule dividing present image, can count carry out dividing equally or carry out irregular division etc. in units of a complete object according to image pixel.
After dividing acquisition first area to be encoded, perform S101 by rotating and/or convergent-divergent process region encoded in reference picture, in encoded region, search obtains the estimation range of mutually mating with first area, wherein, estimation range specifically refers to the second area image that this region is corresponding and first area image similarity or identical.Certainly, the embodiment of the present application also can rotate the carrying out of first area and/or convergent-divergent process, goes to obtain the predicted picture mated with the first area after rotation and/or convergent-divergent process in encoded region.But in actual application, in order to avoid again rotating and/or convergent-divergent first area when computed image residual error, reducing the amount of calculation of electronic equipment and reducing the complexity of encoding and decoding, usually selecting to rotate and/or the encoded region of convergent-divergent process.
Concrete, the image code that when obtaining the encoded region of reference picture, electronic equipment can first be decoded encoded obtains decoded picture, and then decoded picture is rotated and/or convergent-divergent process mating with first area, to search for the estimation range obtaining and mate with first area.After search obtains estimation range, continue to perform S102.
In S102 when obtaining the residual error of the relative second area image of first area image, specifically can obtain the pixel value difference of each pixel that each pixel is corresponding with second area image in the image of first area as residual error.Because second area image is rotate and/or image that behind the encoded region of convergent-divergent, the estimation range that obtains is corresponding, so anglec of rotation when S102 also records rotation and/or convergent-divergent encoded acquisition estimation range, region and/or scaling, and using this anglec of rotation and/or scaling as the reference information of predictive coding, finally perform S103.
Perform S103 and carry out predictive coding according to following two kinds of situations: one, when reference picture and present image are same image, according to the coding of described second area image, described residual error and described reference information, intraframe predictive coding is carried out to described first area image.Two, when described reference picture and described present image are not same images, according to the coding of described second area image, described residual error and described reference information, inter prediction encoding is carried out to described first area image.
In specific implementation process, no matter be intraframe predictive coding or inter prediction encoding, the position at place, estimation range in reference picture, often not identical with the position at the place, first area in present image, except needs rotate and/or except convergent-divergent when processing encoded region, also need to carry out translation process to encoded region, wherein both first can carry out translation process to encoded region, also first can carry out rotation and/convergent-divergent process to encoded region.So, not only carried out rotation and/or convergent-divergent process when search obtains in the process of estimation range but also carried out translation process, then when S102 obtains reference information, electronic equipment, except obtaining the anglec of rotation and/or scaling, also obtains displacement when the encoded region of translation obtains estimation range.
During conducting frame intraprediction encoding, namely when described reference picture and described present image are same image, the displacement in the reference information obtained in S102 is specially: first area image and the position offset of second area image in present image.Between conducting frame during predictive coding, namely when reference picture and present image are not same images, the displacement in the reference information obtained in S102 is specially: the motion vector between the primary importance at image place, first area and the second place at second area image place.This position offset and motion vector all can represent with pixel coordinate point, the center pixel point coordinates supposing estimation range is (a, b), the center pixel point coordinates of first area is (c, d), wherein reference picture is identical with the coordinate system that present image is set up, and so the position offset of the relative second area image of first area image or motion vector are then (a-c, b-d).
Please refer to Fig. 2, such as: present image is identical with reference picture, when namely carrying out intraframe predictive coding, present image hypothesis is equally divided into 8 regions, wherein first to fourth region is encoded, region to be encoded is the 7th region, and search acquisition first region is identical with the 7th region after being rotated counterclockwise 30 degree, so using through being rotated counterclockwise the estimation range of after 30 degree first region as the 7th region.Calculate to obtain and be rotated counterclockwise first region after 30 degree and the difference of each pixel and residual error between the 7th region, and the anglec of rotation "+30 " when recording rotation Two Areas acquisition predeterminable area (wherein represents with symbol "+" and is rotated counterclockwise, symbol "-" expression turns clockwise), and the side-play amount in relative first region, the 7th region.If the center pixel point coordinates in first region is (10,20), the center pixel point coordinates in the 7th region is (100,300), the side-play amount so obtaining relative first region, the 7th region is (90,280).
In specific implementation process, when reference picture and present image are same image and intraframe predictive coding, obtain the residual sum reference information of the relative second area image of first area image, specifically comprise following four kinds of situations:
The first situation: in estimation range be by rotate and the encoded region of translation obtain time, calculate the first pixel residual error between second area image and described first area image obtaining and obtain after over-rotation and translation, and record the described anglec of rotation and described position offset.
The second situation: be when being obtained by encoded region described in convergent-divergent and translation in described estimation range, calculate the second pixel residual error between second area image and described first area image obtaining and obtain after convergent-divergent and translation, and record described scaling and described position offset.
Please refer to Fig. 3, present image hypothesis is divided into 16 regions, wherein the first to nine region is encoded, region to be encoded is the tenth region, search acquisition Two Areas to amplify and identical with the tenth region after right translation 50 pixels, so using the estimation range of Two Areas as the tenth region through 2 times.Calculate to obtain and to amplify and to the Two Areas after right translation 50 pixels and the difference of each pixel and residual error between the tenth region through 2 times, and the scaling "+2 " recording the tenth the relative Two Areas in region (wherein represents amplification with symbol "+", symbol "-" expression is reduced), and the side-play amount (50,0) of the tenth the relative Two Areas in region.
The third situation: described estimation range be by rotate and convergent-divergent described in encoded region obtain time, calculate the 3rd pixel residual error between second area image and described first area image obtaining and obtain after over-rotation and convergent-divergent, and record the described anglec of rotation and described scaling.
4th kind of situation: be when encoded region obtains by rotating, described in convergent-divergent and translation in described estimation range, calculate the 4th pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation, described scaling and described displacement as described reference information.Such as: the 3rd region encoded in Fig. 3 is through being rotated counterclockwise 90 degree, reducing 1 times, again along motion vector (20,280) similar to the to be encoded the 5th region after skew, so calculate and obtain through being rotated counterclockwise 90 degree, reducing 1 times, again along motion vector (20,280) the 3rd region after skew and the 3rd pixel residual error in the 5th region, and record the anglec of rotation "-90 " in relative 5th region, the 3rd region, scaling "-1 " and side-play amount (20,280) as with reference to information.
In specific implementation process, when reference picture and present image are not same images and inter prediction encoding, obtain the residual sum reference information of the relative second area image of first area image, equally also comprise following four kinds of situations:
The first situation: in estimation range be by rotate and the encoded region of translation obtain time, calculate the first pixel residual error between second area image and described first area image obtaining and obtain after over-rotation and translation, and record the described anglec of rotation and described motion vector.
Please refer to Fig. 4, suppose that present image is divided into 4 regions, region to be encoded is Two Areas, search the 4th region obtained in encoded reference picture is rotated counterclockwise 45 degree and identical with Two Areas after right translation 50 pixels, wherein reference picture is identical with the position coordinates system of pixel in present image, so with reference to the estimation range of the region of the 4th in image as Two Areas.Calculate and obtain through being rotated counterclockwise 45 degree and to the difference of the 4th each pixel between region and Two Areas after right translation 50 pixels and residual error, and the anglec of rotation "+45 " recording relative 4th region of Two Areas (wherein represents with symbol "+" and is rotated counterclockwise, symbol "-" expression turns clockwise) and motion vector (50,0).
The second situation: be when being obtained by encoded region described in convergent-divergent and translation in described estimation range, calculate the second pixel residual error between second area image and described first area image obtaining and obtain after convergent-divergent and translation, and record described scaling and described motion vector.The first situation of this situation and above-mentioned interframe encode is similar, therefore no longer illustrates.
The third situation: described estimation range be by rotate and convergent-divergent described in encoded region obtain time, calculate the 3rd pixel residual error between second area image and described first area image obtaining and obtain after over-rotation and convergent-divergent, and record the described anglec of rotation and described scaling.
4th kind of situation: be when encoded region obtains by rotating, described in convergent-divergent and translation in described estimation range, corresponding acquisition through over-rotation, convergent-divergent and translation or second area image and first area image between pixel residual error, and record the selected angle of second area image opposing first regions image, scaling and motion vector.
In the above-described embodiments, by rotating and/or convergent-divergent process region encoded in reference picture, in encoded region, search obtains the estimation range of mating with the first area of present image, the first area image in raising first area and the matching degree between the second area image in estimation range; Obtain the residual sum reference information of first area image relative second area image thus, substantially reduce residual values, wherein reference information comprises anglec of rotation when encoded region described in rotation and/or convergent-divergent obtains described estimation range and/or scaling; According to the coding of second area image, residual error and described reference information, predictive coding is carried out to first area image, thus the technical problem that the code efficiency existed when solving image forecasting encoding in prior art is lower, improve image forecasting encoding efficiency.
Further, in encoded reference frame, by rotating and/or convergent-divergent, the more encoded region of translation, it is more accurate that search obtains the estimation range of mating with first area in present frame, and coding quality is higher.Further, by comparing rotation and/or convergent-divergent, then the second area image obtained behind the encoded region of translation and first area image, the pixel residual error calculating acquisition is less, further increases image forecasting encoding efficiency, reduces transmission code stream.
Meanwhile, when intraframe predictive coding, search obtains the estimation range of mating with first area in encoded present frame, and the displacement recorded when the encoded region of translation obtains estimation range, and be not limited to search in the region adjacent with first area and obtain estimation range, thus obtain the higher estimation range of matching degree, improve Image Coding instruction.
Embodiment two
Please refer to Fig. 5, the embodiment of the present application provides a kind of electronic equipment, and this electronic equipment comprises:
Search unit 501, for by rotating and/or convergent-divergent process region encoded in reference picture, searches for the estimation range obtaining and mate with the first area of present image in described encoded region;
Acquiring unit 502, for obtaining the residual sum reference information of second area image corresponding to the relatively described estimation range of corresponding first area image, described first area, wherein, anglec of rotation when described reference information comprises that described in rotation and/or convergent-divergent, encoded region obtains described estimation range and/or scaling;
Coding unit 503, for the coding according to described second area image, described residual error and described reference information, carries out predictive coding to described first area image.
In specific implementation process, described coding unit 503 specifically for: when described reference picture and described present image are same image, according to the coding of described second area image, described residual error and described reference information, intraframe predictive coding is carried out to described first area image; When described reference picture and described present image are not same images, according to the coding of described second area image, described residual error and described reference information, inter prediction encoding is carried out to described first area image.
In specific implementation process, described search unit 501 also for: before search obtains the estimation range of mating with the first area of present image in described encoded region, translation process is carried out to described encoded region; Described acquiring unit 502 also comprises when obtaining described reference information: encoded region described in acquisition translation obtains displacement during described estimation range.
In specific implementation process, described acquiring unit 502 specifically for:
Described estimation range be by rotate and translation described in encoded region obtain time, calculate and obtain through the first pixel residual error between described second area image and described first area image, and record the described anglec of rotation and described displacement as described reference information; Or
When being obtained by encoded region described in convergent-divergent and translation in described estimation range, calculate the second pixel residual error obtained between described second area image and described first area image, and record described scaling and described displacement as described reference information.
In specific implementation process, described acquiring unit 502 specifically for:
Described estimation range be by rotate and convergent-divergent described in encoded region obtain time, calculate the 3rd pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation and described scaling as described reference information; Or
When by rotating, described in convergent-divergent and translation, encoded region obtains in described estimation range, calculate the 4th pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation, described scaling and described displacement as described reference information.
Due to the virtual bench that the electronic equipment in the present embodiment is corresponding with method, so its concrete course of work has just no longer been specifically described.
By the one or more technical schemes in the embodiment of the present application, following one or more technique effect can be realized:
1, by rotating and/or convergent-divergent process region encoded in reference picture, in encoded region, search obtains the estimation range of mating with the first area of present image, the first area image in raising first area and the matching degree between the second area image in estimation range; Obtain the residual sum reference information of first area image relative second area image thus, substantially reduce residual values, wherein reference information comprises anglec of rotation when encoded region described in rotation and/or convergent-divergent obtains described estimation range and/or scaling; According to the coding of second area image, residual error and described reference information, predictive coding is carried out to first area image, thus the technical problem that the code efficiency existed when solving image forecasting encoding in prior art is lower, improve image forecasting encoding efficiency.
2, in encoded reference frame, by rotating and/or convergent-divergent, the more encoded region of translation, it is more accurate that search obtains the estimation range of mating with first area in present frame, and coding quality is higher.Further, by comparing rotation and/or convergent-divergent, then the second area image obtained behind the encoded region of translation and first area image, the pixel residual error calculating acquisition is less, further increases image forecasting encoding efficiency, reduces transmission code stream.
3, when intraframe predictive coding, search obtains the estimation range of mating with first area in encoded present frame, and the displacement recorded when the encoded region of translation obtains estimation range, and be not limited to search in the region adjacent with first area and obtain estimation range, thus obtain the higher estimation range of matching degree, improve Image Coding instruction.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Specifically, the computer program instructions that information processing method in the embodiment of the present application is corresponding can be stored in CD, hard disk, on the storage mediums such as USB flash disk, when the computer program instructions corresponding with this information processing method in storage medium is read by an electronic equipment or be performed, comprise the steps:
By rotating and/or convergent-divergent process region encoded in reference picture, in described encoded region, search obtains the estimation range of mating with the first area of present image;
Obtain the residual sum reference information of second area image corresponding to the relatively described estimation range of corresponding first area image, described first area, wherein, anglec of rotation when described reference information comprises that described in rotation and/or convergent-divergent, encoded region obtains described estimation range and/or scaling;
According to the coding of described second area image, described residual error and described reference information, predictive coding is carried out to described first area image.
Optionally, when described reference picture and described present image are same image, according to the coding of described second area image, described residual error and described reference information, intraframe predictive coding is carried out to described first area image; When described reference picture and described present image are not same images, according to the coding of described second area image, described residual error and described reference information, inter prediction encoding is carried out to described first area image.
Optionally, before the described estimation range that search acquisition is mated with the first area of present image in described encoded region, described method also comprises: carry out translation process to described encoded region; Also comprise when obtaining described reference information: encoded region described in acquisition translation obtains displacement during described estimation range.
Optionally, the residual sum reference information of the second area image that the relatively described estimation range of first area image corresponding to the described first area of described acquisition is corresponding, is specially:
Described estimation range be by rotate and translation described in encoded region obtain time, calculate the first pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation and described displacement as described reference information; Or
When being obtained by encoded region described in convergent-divergent and translation in described estimation range, calculate the second pixel residual error obtained between described second area image and described first area image, and record described scaling and described displacement as described reference information.
Optionally, the residual sum reference information of the second area image that the relatively described estimation range of first area image corresponding to the described first area of described acquisition is corresponding, is specially:
Described estimation range be by rotate and convergent-divergent described in encoded region obtain time, calculate the 3rd pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation and described scaling as described reference information; Or
When by rotating, described in convergent-divergent and translation, encoded region obtains in described estimation range, calculate the 4th pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation, described scaling and described displacement as described reference information.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. an information processing method, described method comprises:
By rotating and/or convergent-divergent process region encoded in reference picture, in described encoded region, search obtains the estimation range of mating with the first area of present image;
Obtain the residual sum reference information of second area image corresponding to the relatively described estimation range of corresponding first area image, described first area, wherein, anglec of rotation when described reference information comprises that described in rotation and/or convergent-divergent, encoded region obtains described estimation range and/or scaling;
According to the coding of described second area image, described residual error and described reference information, predictive coding is carried out to described first area image.
2. the method for claim 1, it is characterized in that, when described reference picture and described present image are same image, according to the coding of described second area image, described residual error and described reference information, intraframe predictive coding is carried out to described first area image;
When described reference picture and described present image are not same images, according to the coding of described second area image, described residual error and described reference information, inter prediction encoding is carried out to described first area image.
3. the method for claim 1, is characterized in that, before the described estimation range that search acquisition is mated with the first area of present image in described encoded region, described method also comprises:
Translation process is carried out to described encoded region;
Also comprise when obtaining described reference information: encoded region described in acquisition translation obtains displacement during described estimation range.
4. method as claimed in claim 3, is characterized in that, the residual sum reference information of the second area image that the relatively described estimation range of first area image corresponding to the described first area of described acquisition is corresponding, is specially:
Described estimation range be by rotate and translation described in encoded region obtain time, calculate the first pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation and described displacement as described reference information; Or
When being obtained by encoded region described in convergent-divergent and translation in described estimation range, calculate the second pixel residual error obtained between described second area image and described first area image, and record described scaling and described displacement as described reference information.
5. method as claimed in claim 3, is characterized in that, the residual sum reference information of the second area image that the relatively described estimation range of first area image corresponding to the described first area of described acquisition is corresponding, is specially:
Described estimation range be by rotate and convergent-divergent described in encoded region obtain time, calculate the 3rd pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation and described scaling as described reference information; Or
When by rotating, described in convergent-divergent and translation, encoded region obtains in described estimation range, calculate the 4th pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation, described scaling and described displacement as described reference information.
6. an electronic equipment, described electronic equipment comprises:
Search unit, for by rotating and/or convergent-divergent process region encoded in reference picture, searches for the estimation range obtaining and mate with the first area of present image in described encoded region;
Acquiring unit, for obtaining the residual sum reference information of second area image corresponding to the relatively described estimation range of corresponding first area image, described first area, wherein, anglec of rotation when described reference information comprises that described in rotation and/or convergent-divergent, encoded region obtains described estimation range and/or scaling;
Coding unit, for the coding according to described second area image, described residual error and described reference information, carries out predictive coding to described first area image.
7. electronic equipment as claimed in claim 5, is characterized in that, described coding unit specifically for:
When described reference picture and described present image are same image, according to the coding of described second area image, described residual error and described reference information, intraframe predictive coding is carried out to described first area image;
When described reference picture and described present image are not same images, according to the coding of described second area image, described residual error and described reference information, inter prediction encoding is carried out to described first area image.
8. electronic equipment as claimed in claim 5, is characterized in that, described search unit also for:
Before search obtains the estimation range of mating with the first area of present image in described encoded region, translation process is carried out to described encoded region;
Described acquiring unit also comprises when obtaining described reference information: encoded region described in acquisition translation obtains displacement during described estimation range.
9. electronic equipment as claimed in claim 8, is characterized in that, described acquiring unit specifically for:
Described estimation range be by rotate and translation described in encoded region obtain time, calculate the first pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation and described displacement as described reference information; Or
When being obtained by encoded region described in convergent-divergent and translation in described estimation range, calculate the second pixel residual error obtained between described second area image and described first area image, and record described scaling and described displacement as described reference information.
10. electronic equipment as claimed in claim 8, is characterized in that, described acquiring unit specifically for:
Described estimation range be by rotate and convergent-divergent described in encoded region obtain time, calculate the 3rd pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation and described scaling as described reference information; Or
When by rotating, described in convergent-divergent and translation, encoded region obtains in described estimation range, calculate the 4th pixel residual error obtained between described second area image and described first area image, and record the described anglec of rotation, described scaling and described displacement as described reference information.
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