WO2015012514A1 - 서로 다른 다계층 비디오 코덱의 통합 부호화/복호화 방법 및 장치 - Google Patents
서로 다른 다계층 비디오 코덱의 통합 부호화/복호화 방법 및 장치 Download PDFInfo
- Publication number
- WO2015012514A1 WO2015012514A1 PCT/KR2014/006211 KR2014006211W WO2015012514A1 WO 2015012514 A1 WO2015012514 A1 WO 2015012514A1 KR 2014006211 W KR2014006211 W KR 2014006211W WO 2015012514 A1 WO2015012514 A1 WO 2015012514A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- image
- video
- encoder
- layer
- partial
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
Definitions
- the present invention relates to a method and apparatus for integrated encoding / decoding of different multi-layer video codecs that share basic encoding / decoding algorithms.
- the present invention relates to H / W or S / W implementation complexity when integrating and implementing different multi-layer video codecs. It is about a method of reducing.
- Multi-layer video includes a scalable video image that supports scalability or a multi-view and 3D stereoscopic video image that supports images of multiple viewpoints.
- Coding techniques As a technique for encoding / decoding using the scalable video, Coding techniques, three-dimensional video coding techniques, and the like.
- a study on scalable video coding technology The Joint Collaborative Team on Video Coding Extension Development, a joint standardization group of ISO / IEC's Moving Picture Experts Group (MPEG) and ITU-T's Video Coding Experts Group (VCEG). Is a work on scalable video coding technology standards (e.g.
- the scalable video standard scales base-layer video and its enhancement-layer video with improved picture quality, image size, or frame-rate. It includes standards for advanced data formats and related technologies that enable users to watch videos suitable for various transmission and playback environments using scalability.
- FIG. 1 The basic scalable video coding system considered in the scalable video standard is shown in FIG. 1.
- the transmitter acquires image content having scalable information by using down sampling on the input image.
- the acquired image content may include temporal, spatial, image quality (SNR) scalability information, and the like.
- the video content is compressed using a scalable video encoding method in a scalable encoder, and the compressed bitstream is transmitted to a terminal through a network.
- the receiving side reconstructs the image corresponding to the user environment by using the scalable decoding method in the scalable decoder.
- the 3D video standard uses advanced data and its depth-map to support not only stereoscopic video but also multi-view video input from multiple cameras. It contains standards for format and related technologies.
- FIG. 1 The basic three-dimensional video system considered in the three-dimensional video standard is shown in FIG.
- the obtained image content may include N-view video information, depth map information thereof, and camera-related additional information.
- the video content of the N view is compressed using a multiview video encoding method in the 3DV encoder, and the compressed bitstream is transmitted to the terminal through a network.
- the receiving side decodes the received bitstream using a multiview video decoding method in a 3DV decoder to reconstruct an image of N views.
- the reconstructed N-view image may generate virtual view images of more than N views by a depth map-based rendering (DIBR) process.
- DIBR depth map-based rendering
- the generated virtual viewpoint images of more than N viewpoints are reproduced for various stereoscopic display apparatuses to provide a user with a stereoscopic image.
- FIG. 3 is an embodiment of an encoder / decoder supporting a multi-layer image used in the scalable video coding of FIG. 1 or the multi-view video coding of FIG. 2 described above.
- a base layer may be independently encoded / decoded, and an enhancement layer may be encoded / decoded using encoding information about the base layer.
- the correlation information between layers may be used to encode / decode dependent layers.
- the present invention provides a method and apparatus for integrated encoding / decoding of different multilayer video codecs to increase reusability of an existing encoding / decoding module when the multilayer video codec is integrated and implemented.
- the present invention provides for the integration of three or more different video codecs with the same base layer encoding algorithm (e.g. together with the base codec, both 3D video and scalable video related codecs, i.e. video codecs with three different purposes)
- Implementation of an integrated codec incorporating the integrated codec and reuse the base layer encoding module that is already implemented in the form of a hardware chip as it is, and implement the different enhancement layer encoding modules for 3D video coding and scalable video coding according to the video codec type.
- a method of implementing the integrated hardware is provided.
- an integrated video encoder supporting different kinds of multi-layer images includes a base encoder including an encoding algorithm module for encoding a base layer image in a multilayer image, and a portion including an additional encoding algorithm module for encoding an enhancement layer image according to a video coding type of the multilayer image. It includes an encoder.
- the multi-layer image may include a scalable image supporting at least one of a view, temporal, spatial, and quality, or a general image and a depth map image for each view. It may be a 3D video image.
- an integrated video decoder supporting different kinds of multi-layer images.
- the integrated video decoder includes a base decoder including a decoding algorithm module for decoding a base layer image from a multilayer image, and a portion including an additional decoding algorithm module for decoding an enhancement layer image according to a video coding type of the multilayer image. It includes a decoder.
- the multi-layer image may include a scalable image supporting at least one of a view, temporal, spatial, and quality, or a general image and a depth map image for each view. It may be a 3D video image.
- the present invention can reduce the implementation complexity of the integrated encoding method and apparatus by reusing an existing video encoding and decoding module as it is when implementing different multi-layer video codecs.
- an integrated codec incorporating both a basic codec having a basic encoding algorithm and a 3D video and scalable video related codec including the functions of the basic codec, that is, a video codec having three or more different purposes
- 1 is an example of a scalable video coding system.
- 3 is an embodiment of an encoder / decoder supporting a multi-layer image.
- FIG. 4 illustrates a multi-layer video encoder structure for encoding a multi-layer image.
- FIG. 5 illustrates an embodiment of an SHVC encoder, which is a scalable video codec for encoding a scalable video image.
- FIG. 6 is a diagram illustrating an embodiment in which a motion prediction method between a base layer and an enhancement layer is implemented in hardware.
- FIG. 7 illustrates an embodiment in which the HEVC, the SHVC, and the 3D-HEVC codec are implemented as an integrated codec.
- FIG 8 shows an example of an integrated video encoder according to an embodiment of the present invention.
- FIG. 9 is a diagram for describing a method of performing 3D video coding using the integrated video encoder of FIG. 8 according to an embodiment of the present invention.
- FIG. 10 is a diagram for describing a method of performing scalable video coding using the integrated video encoder of FIG. 8 according to an embodiment of the present invention.
- FIG 11 shows another example of an integrated video encoder according to an embodiment of the present invention.
- FIG. 12 is a diagram for describing a method of performing 3D video coding using the integrated video encoder of FIG. 11 according to an embodiment of the present invention.
- FIG. 13 is a diagram for describing a method of performing scalable video coding using the integrated video encoder of FIG. 11 according to an embodiment of the present invention.
- FIG 14 shows an example of an integrated video decoder according to an embodiment of the present invention.
- FIG 15 shows another example of an integrated video decoder according to an embodiment of the present invention.
- first and second may be used to describe various configurations, but the configurations are not limited by the terms. The terms are used to distinguish one configuration from another.
- first configuration may be referred to as the second configuration, and similarly, the second configuration may also be referred to as the first configuration.
- each component shown in the embodiments of the present invention are independently shown to represent different characteristic functions, and do not mean that each component is made of separate hardware or one software component unit.
- each component is listed as a component for convenience of description, and at least two of the components may form one component, or one component may be divided into a plurality of components to perform a function.
- the integrated and separated embodiments of each component are also included in the scope of the present invention without departing from the spirit of the present invention.
- the components may not be essential components for performing essential functions in the present invention, but may be optional components for improving performance.
- the present invention can be implemented including only the components essential for implementing the essentials of the present invention except for the components used for improving performance, and the structure including only the essential components except for the optional components used for improving performance. Also included in the scope of the present invention.
- the multi-layer image includes a base layer image that can be independently encoded / decoded, and an enhancement layer image that is encoded / decoded using image information of the base layer or another layer. can do.
- the multi-layer image may be a scalable video image supporting scalability, a multiview video image supporting images of various viewpoints, a 3D stereoscopic video image, and the like.
- the conventional multi-layer video encoding / decoding method using correlation information of a base layer and an enhancement layer in a multi-layer image uses inter-layer correlations to increase coding efficiency, and encoding / decoding algorithms exist for each layer.
- encoding / decoding a multi-layer image more encoding / decoding algorithms are required than when encoding / decoding only a base layer, and hardware and software implementation complexity and computational complexity are increased. There is an increasing problem.
- FIG. 4 illustrates a multi-layer video encoder structure for encoding a multi-layer image.
- the multi-layer video encoder 400 receives images of different layers as inputs, encodes them, and outputs an integrated bitstream.
- the base image which is the base layer image
- the additional image 1 and the additional image 2 which are the image of the enhancement layer
- the multi-layer video encoder 400 wherein the images of the three different layers are illustrated in FIG. 4.
- the signals may be input and encoded by different encoders according to the layer-specific image information.
- the base picture is encoded by the base layer encoder 410 since the base picture must be coded with a conventional single picture layer video codec for backward compatibility.
- the additional pictures are encoded by an enhancement layer encoder 420 including an algorithm using inter-layer correlation. Therefore, a more complicated encoder is required when encoding the additional video than when encoding the basic video.
- FIG. 5 illustrates an embodiment of an SHVC encoder, which is a scalable video codec for encoding a scalable video image.
- the SHVC encoder 500 may include a base layer (BL) encoder 510 that receives and encodes a downsampled image, and an enhancement layer that receives and encodes an image having a high resolution. (Enhancement Layer (EL) Encoder 520).
- BL base layer
- EL Enhancement Layer
- transform and quantization T / Q
- I / IQ inverse transform and inverse quantization
- loop filter A coding algorithm such as a loop filter may use the same algorithm for each layer.
- encoding algorithms such as motion prediction (M.C. Pred.) Used in the enhancement layer encoder 520 must additionally use inter-layer correlation information in the encoding algorithm of the base layer, and thus cannot apply the same algorithm as the base layer.
- the encoding algorithm module for the enhancement layer adds information according to correlation information between layers to a part of the coding module of the encoding algorithm of the base layer (hereinafter, referred to as the encoding part module). It can be implemented by modification. Accordingly, it can be seen that some modules of the encoding algorithm for the enhancement layer are more complicated because the algorithm for the enhancement layer is added to the encoding algorithm module for the base layer, and thus the computational complexity is large. In addition, in terms of hardware or software implementation, since both the encoding submodule for the base layer and the encoding submodule for the enhancement layer must be implemented independently, the hardware and software implementation complexity also increases.
- FIG. 6 is a diagram illustrating an embodiment in which a motion prediction method between a base layer and an enhancement layer is implemented in hardware.
- the input parameters of the motion prediction method applied to the general image for the base layer and the motion prediction method applied to the enhancement layer are the same.
- the only difference is an input parameter of a motion prediction method applied to an enhancement layer, in which a “additional motion information” parameter according to correlation information between base layers or layers is added for the enhancement layer.
- the motion prediction method part is changed through additional motion information. That is, in order to include additional motion information in the motion prediction method of the enhancement layer (in order to increase the encoding efficiency), all motion prediction modules for the enhancement layer must be newly implemented. This can increase the implementation complexity of the hardware.
- an image of an enhancement layer may be encoded using motion prediction information from the base layer or scaled information thereof as additional motion information.
- an image of an enhancement layer may be encoded using motion prediction information between a reference view image, an additional view image, and a view obtained from a depth map thereof as additional motion information.
- the encoding method for the enhancement layer is only changed by correlation information between additional layers obtained according to the inter-layer video coding method.
- This uses the same base layer encoding method, and for another video codec having a difference in the encoding method of the enhancement layer, a coding module for the base layer and the enhancement layer must be newly implemented with different hardware resources.
- the 3D-HEVC International Standard which is underway in the joint standardization group JCT-3V, uses the HEVC (or H.265) video codec at the base layer and the 3D-HEVC International standard at the enhancement layer.
- the algorithm for the enhancement layer must be further implemented using a video codec (hereinafter referred to as 3D enhanced HEVC codec in the present invention).
- the HEVC or H.265
- the algorithm for the enhancement layer determined by the SHVC international standard is used in the enhancement layer.
- it must be implemented using an extended video codec (hereinafter referred to as a scalable-enhanced HEVC codec in the present invention).
- the HEVC codec and the 3D enhanced HEVC codec and Scalable Enhancements All HEVC codecs must be implemented in one integrated codec.
- the HEVC codec of the base layer should be implemented in the 3D-enhanced HEVC codec and the scalable-enhanced HEVC codec in a redundant manner. have.
- This integrated codec results in enormous implementation complexity and redundancy of the underlying codec implementation in hardware design and software design, as shown in FIG. 7 (three HEVC codecs are essentially required in FIG. 7).
- the present invention proposes a method of implementing different video codecs having the same encoding algorithm in the base layer into one integrated video codec.
- the HEVC codec, the 3D-HEVC codec, and the SHVC codec are implemented as one integrated codec, as shown in FIG. Provide a plan.
- the ultimate object of the present invention is to reuse a base layer encoding module that has already been implemented in a hardware chip form in different video codecs having the same base layer encoding algorithm, and according to the type of video codec in each enhancement layer encoding module implementation. By applying only the additional encoding algorithm, it is implemented as one integrated hardware.
- FIG 8 shows an example of an integrated video encoder according to an embodiment of the present invention.
- the integrated video encoder may encode different types of multi-layer images.
- a 3D video image including a scalable image supporting at least one of a view, temporal, spatial, and quality, a general image for each view, and a depth map image. Coding may be performed on different multilayer images, such as.
- the integrated video encoder 800 may receive and encode images of different layers as inputs, and output an integrated bitstream.
- the integrated video encoder 800 may be a general view or depth map thereof in the case of 3D video codec related, or temporal, spatial or image quality in the case of scalable video codec related.
- the layer-specific images including the red (SNR) scalability information may be received as an input, and the encoding may be performed by the base layer encoder (encoder) 810 for the image of each layer.
- the encoder used herein may be MPEG-1, MPEG-2, MPEG-4 Part 2 Visual, H.264 / AVC, VC-1, AVS, KTA, HEVC (H.265 / HEVC), or the like. .
- the base layer encoder 810 includes an encoding algorithm module for encoding a base layer image from an input multi-layer image.
- the base layer encoder 810 may include encoding algorithm modules such as transform, quantization, inverse transform, inverse quantization, intra prediction, motion prediction, loop filter, and the like, and are common to the enhancement layer image as well as the base layer image. It can be implemented as an encoding algorithm module that can be applied to.
- the integrated video encoder 800 may perform encoding by additionally performing partial encoders 820 and 830 in order to increase encoding efficiency of additional pictures.
- the partial encoders 820 and 830 include additional encoding algorithm modules for encoding the enhancement layer image according to the video coding type of the multi-layer image.
- the partial encoders 820 and 830 may include a scalable partial encoder 820 including an additional encoding algorithm module for encoding an enhancement layer for a scalable image, and encoding the enhancement layer for a 3D video image. It may include a three-dimensional partial encoder 830 including an additional encoding algorithm module for.
- the scalable partial encoder 820 and the 3D partial encoder 830 may be implemented as an algorithm that cannot be encoded using the basic encoding algorithm module, that is, an encoding algorithm module using inter-layer correlation information.
- an interlayer prediction module may be included, which is a case of predicting using inter-layer information during motion prediction.
- the integrated video encoder 800 may determine whether to apply the scalable partial encoder 820 or the 3D partial encoder 830 based on the enhancement layer image information indicating the video coding type of the multilayer image.
- the integrated video encoder 800 may operate the switch 815 to apply the scalable partial encoder 820. Otherwise, if the enhancement layer image information indicates that the 3D video coding is performed, the integrated video encoder 800 operates the switch 815 to not apply the scalable partial encoder 820 and the 3D partial encoder 830. The switch 825 can be operated to apply.
- the integrated video encoder 800 may multiplex the bitstreams of the video for each layer encoded by the base layer encoder 810 and the partial encoders 820 and 830 into a single bitstream. Can be.
- the integrated video encoder 800 applies a module used for encoding a base image (base layer image) providing backward compatibility to the encoding of an additional image (enhancement layer image) as it is. Is reduced, and then encoding efficiency may be improved by determining a partial encoder to be applied to the additional video for the enhancement layer from the enhancement layer image information and additionally applying the partial encoder.
- FIG. 9 is a diagram for describing a method of performing 3D video coding using the integrated video encoder of FIG. 8 according to an embodiment of the present invention.
- FIG. 9 a process of performing 3D video coding in an integrated video encoder when a general view for each view or a depth map image thereof is input as a multi-layer image.
- the integrated video encoder 900 performs a base layer encoder 910 on an input 3D video image, and inputs the enhancement layer image information (information indicating that 3D video coding is performed).
- the 3D partial encoder 930 may be performed without performing the scalable partial encoder 920.
- the 3D video image encoded by the base layer encoder 910 and the 3D video image of the enhancement layer coded by the 3D partial encoder 930 are input to the multiplexing module, and multiplexed by the multiplexing module into a bitstream. Can be output.
- FIG. 10 is a diagram for describing a method of performing scalable video coding using the integrated video encoder of FIG. 8 according to an embodiment of the present invention.
- the integrated video encoder scales the scaled image.
- a process of performing flexible video coding will be described.
- the integrated video encoder 1000 performs a base layer encoder 1010 on an input scalable image, and scales by input enhancement layer image information (information indicating that scalable video coding is performed).
- the flexible partial encoder 1020 may be performed.
- the integrated video encoder 1000 may not perform the 3D partial encoder 1030.
- a scalable image encoded by the base layer encoder 1010 and a scalable image of an enhancement layer encoded by the scalable partial encoder 1020 are input to a multiplexing module, multiplexed by the multiplexing module, and output as a bitstream. Can be.
- FIG 11 shows another example of an integrated video encoder according to an embodiment of the present invention.
- the integrated video encoder may encode different types of multi-layer images.
- a 3D video image including a scalable image supporting at least one of a view, temporal, spatial, and quality, a general image for each view, and a depth map image. Coding may be performed on different multilayer images, such as.
- the integrated video encoder 1100 may receive and encode images of different layers as inputs, and output an integrated bitstream.
- the integrated video encoder 1100 may be a general view-by-view or its depth map in the case of 3D video codec, temporal, spatial, or image quality in the case of scalable video codec.
- the image for each layer including the red (SNR) scalability information is received as an input, and encoding may be performed by the base layer encoder (encoder) 1110 for the image for each layer.
- the encoder used herein may be MPEG-1, MPEG-2, MPEG-4 Part 2 Visual, H.264 / AVC, VC-1, AVS, KTA, HEVC (H.265 / HEVC), or the like. .
- the base layer encoder 1110 includes an encoding algorithm module for encoding a base layer image from an input multi-layer image.
- the base layer encoder 1110 may include coding algorithm modules such as transform, quantization, inverse transform, inverse quantization, intra prediction, motion prediction, loop filter, and the like, and are common to the enhancement layer image as well as the base layer image. It can be implemented as an encoding algorithm module that can be applied to.
- the integrated video encoder 1100 may additionally perform partial encoders 1120 and 1130 to encode additional pictures to increase encoding efficiency.
- the partial encoders 1120 and 1130 include additional encoding algorithm modules for encoding the enhancement layer image according to the video coding type of the multilayer image.
- the partial encoders 1120 and 1130 may encode the 3D partial encoder 1120 including an additional encoding algorithm module for encoding the enhancement layer for the 3D video image, and the enhancement layer for the scalable image. It may include a scalable partial encoder 1130 including an additional encoding algorithm module for.
- the 3D partial encoder 1120 and the scalable partial encoder 1130 may be implemented as an algorithm that cannot be encoded using the basic encoding algorithm module, that is, an encoding algorithm module using inter-layer correlation information.
- an interlayer prediction module may be included, which is a case of predicting using inter-layer information during motion prediction.
- the integrated video encoder 1100 may determine whether to apply the 3D partial encoder 1120 or the scalable partial encoder 1130 based on the enhancement layer image information indicating the video coding type of the multi-layer image.
- the integrated video encoder 1100 may operate the switch 1115 to apply the 3D partial encoder 1120. Otherwise, if the enhancement layer image information indicates that scalable video coding is performed, the integrated video encoder 1100 may operate the switch 1115 to apply the scalable partial encoder 1130.
- the integrated video encoder 1100 may multiplex bitstreams for each layer of video encoded by the base layer encoder 1110 and the partial encoders 1120 and 1130 into a single bitstream. Can be.
- the integrated video encoder 1100 applies the module used for encoding the base image (base layer image) providing backward compatibility to the encoding of the additional image (enhancement layer image) as it is. Is reduced, and then encoding efficiency may be improved by determining a partial encoder to be applied to the additional video for the enhancement layer from the enhancement layer image information and additionally applying the partial encoder.
- FIG. 12 is a diagram for describing a method of performing 3D video coding using the integrated video encoder of FIG. 11 according to an embodiment of the present invention.
- FIG. 12 a process of performing 3D video coding in the integrated video encoder when a general view for each view or a depth map image thereof is input as a multi-layer image.
- the integrated video encoder 1200 performs a base layer encoder 1210 on an input 3D video image, and receives input enhancement layer image information (information indicating that 3D video coding is performed).
- the 3D partial encoder 1220 may be selected and performed.
- the 3D video image encoded by the base layer encoder 1210 and the 3D video image of the enhancement layer encoded by the 3D partial encoder 1220 are input to the multiplexing module, and multiplexed by the multiplexing module into a bitstream. Can be output.
- FIG. 13 is a diagram for describing a method of performing scalable video coding using the integrated video encoder of FIG. 11 according to an embodiment of the present invention.
- the integrated video encoder 1300 performs a base layer encoder 1310 on an input scalable image, and scales by input enhancement layer image information (information indicating that scalable video coding is performed).
- the flexible part encoder 1330 may be selected and performed.
- a scalable image encoded by the base layer encoder 1310 and a scalable image of an enhancement layer encoded by the scalable partial encoder 1330 are input to a multiplexing module, multiplexed by the multiplexing module, and output as a bitstream. Can be.
- the above-described encoding method performed by the integrated video encoder of FIGS. 8 to 13 may be applied to a decoding method, and an integrated video decoder supporting different multi-layer images will be described with reference to FIGS. 14 and 15.
- FIG 14 shows an example of an integrated video decoder according to an embodiment of the present invention.
- the integrated video decoder can decode different types of multi-layer images.
- a 3D video image including a scalable image supporting at least one of a view, temporal, spatial, and quality, a general image for each view, and a depth map image.
- Decoding may be performed on different multi-layer images such as.
- the integrated video decoder 1400 performs decoding by applying a base layer decoder 1410 to an input bitstream, and uses the scalable partial decoder 1420 or 3 based on the obtained enhancement layer image information. Decoding is performed by applying the dimensional partial decoder 1430.
- the base layer decoder 1410 includes a decoding algorithm module for decoding the base layer image with respect to the input bitstream.
- the base layer decoder 1410 may include a decoding algorithm module such as transform, quantization, inverse transform, inverse quantization, intra prediction, motion prediction, loop filter, and the like, and is common to the enhancement layer image as well as the base layer image. It can be implemented as a decoding algorithm module that can be applied to.
- the base layer image may be reconstructed by the base layer decoder 1410.
- the partial decoders 1420 and 1430 include additional decoding algorithm modules for decoding the enhancement layer image according to the video coding type of the multilayer image.
- the partial decoders 1420 and 1430 may include the scalable partial decoder 1420 including an additional decoding algorithm module for decoding the enhancement layer for the scalable image, and the enhancement layer for the 3D video image. It may include a three-dimensional partial decoder 1430 including an additional decoding algorithm module for.
- the scalable partial decoder 1420 and the 3D partial decoder 1430 may be implemented as an algorithm that cannot be decoded using the basic decoding algorithm module, that is, a decoding algorithm module using inter-layer correlation information.
- an interlayer prediction module may be included, which is a case of predicting using inter-layer information during motion prediction.
- the integrated video decoder 1400 may determine whether to apply the scalable partial decoder 1420 or the 3D partial decoder 1430 based on the enhancement layer image information indicating the video coding type of the multilayer image.
- the enhancement that indicates that the integrated video decoder 1400 should perform scalable video coding through the base layer decoder 1410.
- the hierarchical image information may be obtained, and the switch 1415 may be operated to perform the scalable partial decoder 1420 to decode the image for the enhancement layer.
- the integrated video decoder 1400 indicates that the 3D video coding should be performed through the base layer decoder 1410.
- the enhancement layer image information may be obtained, and the switch 1425 may be operated to perform the 3D partial decoder 1430 to decode the image of the enhancement layer.
- FIG 15 shows another example of an integrated video decoder according to an embodiment of the present invention.
- the integrated video decoder can decode different types of multi-layer images.
- a 3D video image including a scalable image supporting at least one of a view, temporal, spatial, and quality, a general image for each view, and a depth map image.
- Decoding may be performed on different multi-layer images such as.
- the integrated video decoder 1500 performs decoding by applying a base layer decoder 1510 to an input bitstream, and uses the 3D partial decoder 1520 or the scale through the obtained enhancement layer image information.
- the decoding is performed by applying the flexible partial decoder 1530.
- the base layer decoder 1510 includes a decoding algorithm module for decoding a base layer image with respect to an input bitstream.
- the base layer decoder 1510 may include a decoding algorithm module such as transform, quantization, inverse transform, inverse quantization, intra prediction, motion prediction, loop filter, and the like, and is common to the enhancement layer image as well as the base layer image. It can be implemented as a decoding algorithm module that can be applied to.
- the base layer image may be reconstructed by the base layer decoder 1510.
- the partial decoders 1520 and 1530 include additional decoding algorithm modules for decoding the enhancement layer image according to the video coding type of the multilayer image.
- the partial decoders 1520 and 1530 may include the 3D partial decoder 1520 including an additional decoding algorithm module for decoding the enhancement layer for the 3D video image, and the enhancement layer for the scalable image. It may include a scalable partial decoder 1530 including an additional decoding algorithm module for.
- the 3D partial decoder 1520 and the scalable partial decoder 1530 may be implemented as an algorithm that cannot be decoded using the basic decoding algorithm module, that is, a decoding algorithm module using inter-layer correlation information.
- an interlayer prediction module may be included, which is a case of predicting using inter-layer information during motion prediction.
- the integrated video decoder 1500 may determine whether to apply the 3D partial decoder 1520 or the scalable partial decoder 1530 based on the enhancement layer image information indicating the video coding type of the multilayer image.
- the hierarchical image information may be obtained, and the switch 1515 may be operated to perform the 3D partial decoder 1520 to decode the image for the enhancement layer.
- the integrated video decoder 1500 indicates that the scalable video coding should be performed through the base layer decoder 1510.
- the enhancement layer image information may be obtained, and the switch 1515 may be operated to perform the scalable partial decoder 1530 to decode the image of the enhancement layer.
- the methods are described based on a flowchart as a series of steps or blocks, but the present invention is not limited to the order of steps, and certain steps may occur in a different order or at the same time than other steps described above. Can be. Also, one of ordinary skill in the art appreciates that the steps shown in the flowcharts are not exclusive, that other steps may be included, or that one or more steps in the flowcharts may be deleted without affecting the scope of the present invention. I can understand.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Description
Claims (11)
- 서로 다른 종류의 다계층(multi-layer) 영상을 지원하는 통합 비디오 인코더에 있어서,다계층 영상에서 기본 계층 영상을 부호화하기 위한 부호화 알고리즘 모듈을 포함하는 기본 인코더; 및상기 다계층 영상의 비디오 코딩 종류에 따른 향상 계층 영상을 부호화하기 위한 추가 부호화 알고리즘 모듈을 포함하는 부분 인코더를 포함하며,상기 다계층 영상은,시점(view), 시간(temporal), 공간(spatial) 및 화질(quality) 중 적어도 하나의 스케일러빌리티를 지원하는 스케일러블 영상, 또는 시점별 일반 영상 및 깊이정보 맵 영상을 포함하는 3차원 비디오 영상인 것을 특징으로 하는 통합 비디오 인코더.
- 제1항에 있어서,상기 부분 인코더는,상기 스케일러블 영상에 대한 향상 계층을 부호화하기 위한 추가 부호화 알고리즘 모듈을 포함하는 스케일러블 부분 인코더; 및상기 3차원 비디오 영상에 대한 향상 계층을 부호화하기 위한 추가 부호화 알고리즘 모듈을 포함하는 3차원 부분 인코더를 포함하는 것을 특징으로 하는 통합 비디오 인코더.
- 제2항에 있어서,상기 부분 인코더는,상기 다계층 영상의 비디오 코딩 종류를 나타내는 향상 계층 영상 정보를 기반으로 하여, 상기 스케일러블 부분 인코더 또는 상기 3차원 부분 인코더를 적용하는 것을 특징으로 하는 통합 비디오 인코더.
- 제1항에 있어서,상기 기본 인코더는,변환, 양자화, 역변환, 역양자화, 인트라 예측, 움직임 예측 및 루프 필터 중 적어도 하나의 부호화 알고리즘 모듈을 포함하는 것을 특징으로 하는 통합 비디오 인코더.
- 제1항에 있어서,상기 부분 인코더는,계층간 상관 정보를 이용하는 추가 부호화 알고리즘 모듈을 포함하는 것을 특징으로 하는 통합 비디오 인코더.
- 제1항에 있어서,상기 기본 인코더에 의해 부호화된 상기 기본 계층 영상에 대한 비트스트림과, 상기 부분 인코더에 의해 부호화된 상기 향상 계층 영상에 대한 비트스트림을 다중화하는 다중화기를 더 포함하는 통합 비디오 인코더.
- 서로 다른 종류의 다계층(multi-layer) 영상을 지원하는 통합 비디오 디코더에 있어서,다계층 영상에서 기본 계층 영상을 복호화하기 위한 복호화 알고리즘 모듈을 포함하는 기본 디코더; 및상기 다계층 영상의 비디오 코딩 종류에 따른 향상 계층 영상을 복호화하기 위한 추가 복호화 알고리즘 모듈을 포함하는 부분 디코더를 포함하며,상기 다계층 영상은,시점(view), 시간(temporal), 공간(spatial) 및 화질(quality) 중 적어도 하나의 스케일러빌리티를 지원하는 스케일러블 영상, 또는 시점별 일반 영상 및 깊이정보 맵 영상을 포함하는 3차원 비디오 영상인 것을 특징으로 하는 통합 비디오 디코더.
- 제7항에 있어서,상기 부분 디코더는,상기 스케일러블 영상에 대한 향상 계층을 복호화하기 위한 추가 복호화 알고리즘 모듈을 포함하는 스케일러블 부분 디코더; 및상기 3차원 비디오 영상에 대한 향상 계층을 복호화하기 위한 추가 복호화 알고리즘 모듈을 포함하는 3차원 부분 디코더를 포함하는 것을 특징으로 하는 통합 비디오 디코더.
- 제8항에 있어서,상기 부분 디코더는,상기 다계층 영상의 비디오 코딩 종류를 나타내는 향상 계층 영상 정보를 기반으로 하여, 상기 스케일러블 부분 디코더 또는 상기 3차원 부분 디코더를 적용하는 것을 특징으로 하는 통합 비디오 디코더.
- 제7항에 있어서,상기 기본 디코더는,변환, 양자화, 역변환, 역양자화, 인트라 예측, 움직임 예측 및 루프 필터 중 적어도 하나의 복호화 알고리즘 모듈을 포함하는 것을 특징으로 하는 통합 비디오 디코더.
- 제7항에 있어서,상기 부분 디코더는,계층간 상관 정보를 이용하는 추가 복호화 알고리즘 모듈을 포함하는 것을 특징으로 하는 통합 비디오 디코더.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/391,429 US9686567B2 (en) | 2013-07-26 | 2014-07-10 | Method and apparatus for integrated encoding/decoding of different multilayer video codec |
CA2882283A CA2882283C (en) | 2013-07-26 | 2014-07-10 | Method and apparatus for integrally encoding/decoding different multilayer video codecs |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2013-0089087 | 2013-07-26 | ||
KR20130089087 | 2013-07-26 | ||
KR1020140070006A KR101595397B1 (ko) | 2013-07-26 | 2014-06-10 | 서로 다른 다계층 비디오 코덱의 통합 부호화/복호화 방법 및 장치 |
KR10-2014-0070006 | 2014-06-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015012514A1 true WO2015012514A1 (ko) | 2015-01-29 |
Family
ID=52393503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2014/006211 WO2015012514A1 (ko) | 2013-07-26 | 2014-07-10 | 서로 다른 다계층 비디오 코덱의 통합 부호화/복호화 방법 및 장치 |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2015012514A1 (ko) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040063597A (ko) * | 2003-01-08 | 2004-07-14 | 엘지전자 주식회사 | 복수 코덱을 지원하는 장치와 방법 |
KR20050049965A (ko) * | 2003-11-24 | 2005-05-27 | 엘지전자 주식회사 | 에스엔알 스케일러빌리티를 위한 동영상 부호화 및 복호화장치 |
US20070150271A1 (en) * | 2003-12-10 | 2007-06-28 | France Telecom | Optimized multiple coding method |
KR20090037252A (ko) * | 2007-10-11 | 2009-04-15 | 삼성전자주식회사 | 영상 부호화장치 및 방법과 그 영상 복호화장치 및 방법 |
US20100165077A1 (en) * | 2005-10-19 | 2010-07-01 | Peng Yin | Multi-View Video Coding Using Scalable Video Coding |
-
2014
- 2014-07-10 WO PCT/KR2014/006211 patent/WO2015012514A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040063597A (ko) * | 2003-01-08 | 2004-07-14 | 엘지전자 주식회사 | 복수 코덱을 지원하는 장치와 방법 |
KR20050049965A (ko) * | 2003-11-24 | 2005-05-27 | 엘지전자 주식회사 | 에스엔알 스케일러빌리티를 위한 동영상 부호화 및 복호화장치 |
US20070150271A1 (en) * | 2003-12-10 | 2007-06-28 | France Telecom | Optimized multiple coding method |
US20100165077A1 (en) * | 2005-10-19 | 2010-07-01 | Peng Yin | Multi-View Video Coding Using Scalable Video Coding |
KR20090037252A (ko) * | 2007-10-11 | 2009-04-15 | 삼성전자주식회사 | 영상 부호화장치 및 방법과 그 영상 복호화장치 및 방법 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5619256A (en) | Digital 3D/stereoscopic video compression technique utilizing disparity and motion compensated predictions | |
US5612735A (en) | Digital 3D/stereoscopic video compression technique utilizing two disparity estimates | |
KR101713005B1 (ko) | 비디오 코딩 및 디코딩을 위한 장치, 방법 및 컴퓨터 프로그램 | |
WO2012144821A2 (en) | Method and apparatus for unified scalable video encoding for multi-view video and method and apparatus for unified scalable video decoding for multi-view video | |
WO2010071291A1 (ko) | 3차원 영상신호 처리 방법과 이를 구현하기 위한 영상표시 장치 | |
KR102116265B1 (ko) | 서로 다른 다계층 비디오 코덱의 통합 부호화/복호화 방법 및 장치 | |
WO2016056822A1 (ko) | 3d 비디오 코딩 방법 및 장치 | |
WO2012036468A2 (en) | Method and apparatus for hierarchical picture encoding and decoding | |
EP2452491A2 (en) | Method and apparatus for multi-view video coding and decoding | |
WO2016056821A1 (ko) | 3d 비디오 코딩을 위한 움직임 정보 압축 방법 및 장치 | |
WO2011129602A2 (ko) | 3차원 영상 데이터를 부호화하는 방법 및 장치와 복호화 방법 및 장치 | |
WO2016056782A1 (ko) | 비디오 코딩에서 뎁스 픽처 코딩 방법 및 장치 | |
JP2016508354A (ja) | 3dビデオにおけるビュー合成 | |
WO2015057033A1 (ko) | 3d 비디오 부호화/복호화 방법 및 장치 | |
WO2013015585A1 (ko) | 송신 장치, 수신 장치 및 그 송수신 방법 | |
CN114375570A (zh) | 用于视频编码的方法及装置 | |
WO2015009098A1 (ko) | 비디오 신호 처리 방법 및 장치 | |
WO2009108028A1 (ko) | 자유시점 영상 복호화 방법 및 장치 | |
WO2014171709A1 (ko) | 객체 기반 적응적 밝기 보상 방법 및 장치 | |
WO2014088306A2 (ko) | 비디오 부호화 및 복호화 방법, 그를 이용한 장치 | |
US11445206B2 (en) | Method and apparatus for video coding | |
WO2014084613A2 (ko) | 깊이 정보를 이용한 영상 부호화 및 복호화 방법, 그를 이용한 장치 및 영상 시스템 | |
WO2014109547A1 (ko) | 비디오 신호 처리 방법 및 장치 | |
WO2015009091A1 (ko) | 비디오 신호 처리 방법 및 장치 | |
WO2016056755A1 (ko) | 3d 비디오 부호화/복호화 방법 및 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 14391429 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 2882283 Country of ref document: CA |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14828991 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14828991 Country of ref document: EP Kind code of ref document: A1 |