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US 11,310,514 B2Granted
Encoding method and apparatus using non-encoding region, block-based encoding region, and pixel-based encoding region
AssigneeSamsung Electronics Co., Ltd.
InventorsDae-sung Cho, Chan-yul Kim, Jeong-hoon Park, Pil-kyu Park, Kwang-pyo Choi, Dai-woong Choi, Woong-il Choi
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Abstract
Encoding an image using a non-encoding region of the image, a block-based encoding region of the image, and a pixel-based encoding region of the image.
Claims13
An encoding apparatus for encoding an image, the encoding apparatus comprising:
- a communicator configured to receive, from a device, device information related to the device;
- and
- a processor configured to encode the image by using image information of the image and the device information,
- wherein the processor is further configured to determine a non-encoding region, a block-based encoding region, and a pixel-based encoding region of the image according to at least one of the device information and the image information, performs block-based encoding on the block-based encoding region by using a quantization parameter determined according to at least one of the device information and the image information, perform pixel-based encoding on the pixel-based encoding region, generates an encoded image by entropy encoding a symbol determined by the block-based encoding or a symbol determined by the pixel-based encoding, and generate a bitstream comprising the encoded image, region information of the block-based encoding region and the pixel-based encoding region, and quantization information of the quantization parameter, and
- wherein the communicator is further configured to transmit the bitstream to the device.
2 more elements
A method of encoding an image, the method being performed by an encoding apparatus and comprising:
- receiving, from a device, device information related to the device;
- obtaining image information of the image;
- determining a non-encoding region, a block-based encoding region, and a pixel-based encoding region of the image according to at least one of the device information and the image information;
- determining a quantization parameter for the block-based encoding region according to at least one of the device information and the image information;
- performing block-based encoding on the block-based encoding region by using the quantization parameter;
- performing pixel-based encoding on the pixel-based encoding region;
- generating an encoded image by entropy encoding a symbol determined by the block-based encoding and a symbol determined by the pixel-based encoding;
- and
- transmitting a bitstream comprising the encoded image, region information of the block-based encoding region and the pixel-based encoding region, and quantization information of the quantization parameter to the device.
6 more elements
A decoding apparatus for decoding an encoded image, the decoding apparatus comprising:
- a communicator configured to transmit device information related to a device comprising the decoding apparatus to an encoding apparatus and receive, from the encoding apparatus, the encoded image generated by encoding an image and image information of the image, region information of a block-based encoding region to which block-based encoding is applied and a pixel-based encoding region to which pixel-based encoding is applied in a region of the image, and quantization information of a quantization parameter used in an encoding process of the block-based encoding region of the image;
- and
- a processor configured to entropy decode the encoded image, perform block-based decoding on a portion corresponding to the block-based encoding region of the entropy decoded image by using the quantization parameter, perform pixel-based decoding on a portion corresponding to the pixel-based encoding region of the entropy decoded image, and reconstruct an image that is to be reproduced by the device by combining the portion corresponding to the block-based encoding region of the block-based decoded image and the portion corresponding to the pixel-based encoding region of the pixel-based decoded image.
Dependencies are inferred from the claim text.