US 10,475,158 B2Granted

Image processing device

AssigneeMegaChips Corporation

InventorKazuyuki Takahashi

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Abstract

An image processing device includes: a first storage unit to store image data containing pixel data about a plurality of components of each pixel arranged according to a first rule; a second storage unit having a plurality of storage areas to individually store the image data read from the first storage unit; a process controller to control reading of the image data from the first storage unit to the second storage unit and to output a control signal containing information used to designate a specific storage area being one of the storage areas; a multiplexer to output pixel data in order according to a second rule by selecting, based on the control signal, pixel data stored in the specific storage area from pixel data stored in the storage areas; and a 4-tap filter to calculate pixel information about an interpolated pixel.

Claims13

Dependent claims

An image processing device comprising:

circuitry configured to:
store, in a first storage, image data containing pieces of pixel information about a plurality of components of each pixel, wherein the plurality of components includes a luminance type component and two color difference type components;
store, in a second storage having a plurality of storage areas, said image data read from said first storage for each of said pieces of pixel information;
control reading of said image data from said first storage to said second storage;
output a control signal containing information used to designate four specific storage areas of said second storage;
output pixel information by selecting, based on said control signal, using four multiplexers a piece of pixel information stored in said second storage out of pieces of pixel information stored in said storage areas, wherein each of said plurality of storage areas is given one unique address such that a plurality of addresses, which differ from each other, is given to said plurality of storage areas storing said piece of pixel information about each of said luminance type component and said two color difference type components, each of said plurality of storage areas storing said piece of pixel information about each of said luminance type component and said two color difference type components stores only said piece of pixel information about one component of said plurality of components of one pixel such that said luminance type component and said two color difference type components each have corresponding unique addresses, and said control signal includes an address given to said four specific storage areas out of said plurality of addresses;
output, from said first storage, part of said image data such that pieces of pixel information about the same type of component of two or more successive pixels are stored in said second storage;
output, from said second storage, said pieces of pixel information about the same type of component of said two or more successive pixels;
calculate interpolated pixel information about an interpolated pixel by performing an interpolation calculation using the outputted pixel information and an interpolation coefficient;
and
output the calculated interpolated pixel information about said interpolated pixel.

8 more elements

An image processing device comprising:

circuitry configured to:
store, in a first storage, image data containing pieces of pixel information about a plurality of components of each pixel, wherein the plurality of components includes a luminance type component and two color difference type components;
store, in a second storage having a plurality of storage areas, said image data read from said first storage for each of said pieces of pixel information;
control reading of said image data from said first storage to said second storage;
output a control signal containing information used to designate four specific storage areas of said second storage;
and
output pixel information by selecting, based on said control signal, using four multiplexers a piece of pixel information stored in said second storage area out of said pieces of pixel information stored in said storage areas, wherein each of said plurality of storage areas is given one unique address such that a plurality of addresses, which differ from each other, is given to said plurality of storage areas storing said piece of pixel information about each of said luminance type component and said two color difference type components, each of said plurality of storage areas storing said piece of pixel information about each of said luminance type component and said two color difference type components stores only said piece of pixel information about one component of said plurality of components of one pixel such that said luminance type component and said two color difference type components each have corresponding unique addresses, and said control signal includes an address given to said four specific storage areas out of said plurality of addresses.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/964,476Filed 12 Aug 2013
Priority: JP 2012-23088818 Oct 2012
Published: US 2014/0112393 A124 Apr 2014
Granted: 12 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G06T 3/4007
Scaling of whole images or parts thereof, e.g. expanding or contracting: based on interpolation, e.g. bilinear interpolation
H04N 19/423
Characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software…
G06T
Image data processing or generation, in general
H04N
Pictorial communication