Encoding device with flicker reduction
AssigneeSamsung Electronics Co., Ltd.
InventorsJung Yeop Yang, Hyuk Jae Jang
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Abstract
In an application processor having an encoder configured to reduce flicker occurring in a display, the encoder includes a transformer configured to generate first frequency domain coefficients for individual block values of a current frame, a quantizer configured to quantize the first frequency domain coefficients to generate quantized coefficients, and a coefficient calculator configured to generate first adjusting coefficients for reducing the flicker, where the quantizer is configured to adjust the quantization coefficients based on the first adjusting coefficients and output adjusted quantization coefficients.
Claims19
An application processor having an encoder for reducing flicker on a display, the encoder comprising:
- a transformer configured to generate first frequency domain coefficients for individual block values of a current frame;
- a quantizer connected to the transformer and configured to quantize the first frequency domain coefficients and generate quantized coefficients;
- and
- a coefficient calculator connected to the transformer and configured to generate first adjusting coefficients for reducing the flicker using the first frequency domain coefficients,
- wherein the quantizer is connected to the coefficient calculator and configured to adjust the quantization coefficients based on the first adjusting coefficients, and output the adjusted quantization coefficients.
A data processing system comprising a display and an application processor configured to control the display, the application processor comprising an encoder configured to reduce flicker occurring in the display, the encoder comprising:
- a transformer configured to generate first frequency domain coefficients for individual block values of a current frame;
- a quantizer connected to the transformer and configured to quantize the first frequency domain coefficients to generate quantized coefficients;
- and
- a coefficient calculator connected to the transformer and configured to generate first adjusting coefficients for reducing the flicker,
- wherein the quantizer is connected to the coefficient calculator and configured to adjust the quantization coefficients based on the first adjusting coefficients and output adjusted quantization coefficients, and
- wherein the first adjusting coefficients include at least a portion of second adjusting coefficients, each of the second adjusting coefficients includes a plurality of elements, and each of the first adjusting coefficients includes a corresponding one of the plurality elements.
An application processor having an encoder for reducing flicker on a display, the encoder comprising:
- a transformer configured to generate first frequency domain coefficients for individual blocks of a current frame;
- a quantizer connected to the transformer and configured to quantize the frequency domain coefficients and generate quantized coefficients;
- an inverse-quantizer connected to the quantizer and configured generate inverse-quantized coefficients using the quantized coefficients;
- and
- a mode decision unit connected to the inverse-quantizer and configured to select spatial-domain prediction blocks based on a cost function to optimize rate-distortion,
- wherein the transformer is connected to the mode decision unit and configured to calculate second frequency domain coefficients for reconstructed previous blocks responsive to the selected spatial-domain prediction blocks to reduce flicker, and
- wherein the cost function is calculated using the inverse-quantized coefficients.
Dependencies are inferred from the claim text.