Method and device for simplifying the encoding and decoding of ultra-high definition images
a technology of ultra-high definition images and encoding and decoding, applied in the field of ultra-high definition image encoding and decoding, can solve the problems of reducing encoding efficiency, excessive number of pixels used to display a portion of a specific image, and increasing calculation complexity, so as to reduce calculation complexity, improve encoding efficiency, and high inter-pixel correlation
Inactive Publication Date: 2018-01-11
ELECTRONICS & TELECOMM RES INST +1
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Benefits of technology
The solution reduces calculation complexity and improves encoding efficiency by selectively encoding only the necessary information, thereby generating bitstreams with reduced computational output and enhanced decoding performance.
Problems solved by technology
As such, in the image of the 4K and 8K resolution, the number of pixels used to display a portion of a specific image is excessively large.
Therefore, when the inter-pixel correlation is high, a process of encoding and decoding residual blocks is a factor of the increase in calculation complexity and the reduction in encoding efficiency.
Method used
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[0040]Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to exemplary embodiments described below. In addition, like reference numerals provided in each drawing denotes like components.
[0041]FIG. 2 is a diagram showing a configuration of an encoding apparatus according to the embodiment of the present invention.
[0042]In FIG. 2, an input image having a size of 16×16 pixels in a width and a length may be processed in an encoding unit. In this case, the encoding apparatus may output bitstreams generated through intra prediction encoding or inter prediction encoding. First, a process of the intra prediction encoding process will be described with reference to FIG. 2 and a process of inter prediction encoding will be described with reference to FIG. 3.
[0043]Referring to FIG. 2, an encoding apparatus 200 may include an intra prediction unit 210, a reference image...
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Provided are an encoding device using predictive coding in a screen and a method thereof, and a decoding device and a method thereof. The encoding device is capable of generating a prediction block of a current block according to one of methods for generating a plurality of predetermined prediction blocks, and outputting at least one of encoding information and differential blocks as bitstream by entropy encoding according to whether differential blocks are encoded or not.
Description
CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a Continuation Application of U.S. patent application Ser. No. 13 / 990,190 filed on May 29, 2013, which is a national stage application of, International Application No. PCT / KR2011 / 009167, filed on Nov. 29, 2011 which claims the benefit under 35 U.S.C. §119(a) of Korean Patent Application No. 10-2010-0124368, filed on Dec. 7, 2010, in the Korean Intellectual Property Office, the entire disclosures of which are incorporated herein by reference for all purposes.BACKGROUNDTechnical Field[0002]The present invention relates to a technology capable of lowering calculation complexity and improving encoding efficiency at the time of performing intra prediction encoding on an ultrahigh definition resolution image.Background Art[0003]A broadcast service having high definition (HD) resolution such as 1280×1024, 1920×1080, etc., has been expanded in the country and around the world. Therefore, users require contents having higher r...
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IPC IPC(8): H04N19/50H04N19/147H04N19/176H04N19/11H04N19/137H04N19/13H04N19/593
CPCH04N19/11H04N19/593H04N19/147H04N19/176H04N19/50H04N19/46H04N19/132H04N19/105H04N19/119H04N19/124H04N19/13H04N19/137H04N19/139H04N19/189H04N19/19H04N19/169
InventorLIM, SUNG CHANGCHOI, HAE CHULJEONG, SE YOONCHO, SUK HEEKIM, HUI YONGLEE, JIN HOLEE, HA HYUNKIM, JONG HOCHOI, JIN SOOKIM, JIN WOONGPARK, GWANG HOONKIM, KYUNG YONGSIM, DONG GYUOH, SEOUNG JUN
OwnerELECTRONICS & TELECOMM RES INST