Image processing method and electronic device

Patent metadata

Field	Value
Publication number	US-10645402-B2
Application number	US-201715745034-A
Country	US
Kind code	B2
Filing date	Aug 22, 2017
Priority date	Jan 13, 2017
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

The present disclosure provides an image processing method and an electronic device using the image processing method. The image processing method includes: encoding, by an encoding unit, to-be-displayed image data to generate encoded image data; transmitting, via an interface component, the encoded image data to a display component; and decoding, by a decoding unit in the display component, the encoded image data to generate the to-be-displayed image data for the display component to display. This image processing method can reduce data transmission amount.

First claim

What is claimed is:

1. An image processing method, comprising:
encoding, by an encoder, to-be-displayed image data having a first color depth to generate encoded image data having a second color depth;
transmitting, via an interface, the encoded image data to a decoder; and
decoding, by the decoder, the encoded image data to generate the to-be-displayed image data having the first color depth for display,
wherein the second color depth is three fourths (¾) of the first color depth.

2. The image processing method of claim 1 , wherein the interface is a Mobile Industrial Processor Interface.

3. The image processing method of claim 2 , wherein, before the encoding the to-be-displayed image data, the method further comprising:
generating, by an image processor, the to-be-displayed image data;
inputting the to-be-displayed image data into a data buffer; and
outputting the to-be-displayed image data, frame by frame, from the data buffer to the encoder.

4. The image processing method of claim 2 , wherein the encoding the to-be-displayed image data comprises:
dividing, by the encoder, the first color depth into a plurality of first sub-color depth ranges, each of the plurality of first sub-color depth ranges corresponding to a corresponding color depth value in the second color depth; and
converting the to-be-displayed image data, having a color depth value in each of the plurality of first sub-color depth ranges, into the encoded image data, wherein the encoded image data has a corresponding color depth value in the second color depth.

5. The image processing method of claim 1 , wherein, before encoding the to-be-displayed image data, the method further comprising:
generating, by an image processor, the to-be-displayed image data;
inputting the to-be-displayed image data into a data buffer; and
outputting the to-be-displayed image data, frame by frame, from the data buffer to the encoder.

6. The image processing method of claim 5 , wherein the outputting the to-be-displayed image data, frame by frame, from the data buffer to the encoder comprises:
outputting the to-be-displayed image data, frame by frame, from the data buffer to a processor for pre-compression; and
pre-compressing, by the processor for pre-compression, the to-be-displayed image data, and outputting the pre-compressed to-be-displayed image data to the encoder.

7. The image processing method of claim 1 , wherein the encoding the to-be-displayed image data comprises:
dividing, by the encoder, the first color depth into a plurality of first sub-color depth ranges, each of the plurality of first sub-color depth ranges corresponding to a corresponding color depth value in the second color depth; and
converting the to-be-displayed image data, having a color depth value in each of the plurality of first sub-color depth ranges, into the encoded image data, wherein the encoded image data has a corresponding color depth value in the second color depth.

8. An electronic device, comprising:
an encoder, configured to encode to-be-displayed image data having a first color depth to generate encoded image data having a second color depth;
an interface via which the encoded image data is transmitted; and
a decoder, configured to decode received encoded image data transmitted via the interface to generate the to-be-displayed image data having the first color depth,
wherein the second color depth is three fourths (¾) of the first color depth.

9. The electronic device of claim 8 , wherein the interface is a Mobile Industrial Processor Interface.

10. The electronic device of claim 9 , further comprising:
an image processor, configured to generate the to-be-displayed image data;
a data buffer, configured to receive the to-be-displayed image data inputted by the image processor and output the to-be-displayed image data, frame by frame, to the encoder; and
an image display, configured to perform image display based on the to-be-displayed image data generated by the decoder.

11. The electronic device of claim 9 , wherein the encoder divides the first color depth into a plurality of first sub-color depth ranges, each of the plurality of first sub-color depth ranges corresponding to a corresponding color depth value in the second color depth; and converts the to-be-displayed image data, having a color depth value in each of the plurality of first sub-color depth ranges, into the encoded image data, wherein the encoded image data has a corresponding color depth value in the second color depth.

12. The electronic device of claim 8 , further comprising:
an image processor, configured to generate the to-be-displayed image data;
a data buffer, configured to receive the to-be-displayed image data inputted by the image processor and output the to-be-displayed image data, frame by frame, to the encoder; and
an image display, configured to perform image display based on the to-be-displayed image data generated by the decoder.

13. The electronic device of claim 12 , further comprising:
a processor for pre-compression, configured to receive the to-be-displayed image data, outputted frame by frame from the data buffer, perform pre-compression on the to-be-displayed image data, and output the pre-compressed to-be-displayed image data to the encoder.

14. The electronic device of claim 8 , wherein the encoder divides the first color depth into a plurality of first sub-color depth ranges, each of the plurality of first sub-color depth ranges corresponding to a corresponding color depth value in the second color depth; and converts the to-be-displayed image data, having a color depth value in each of the plurality of first sub-color depth ranges, into the encoded image data, wherein the encoded image data has a corresponding color depth value in the second color depth.

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Optoelectronics Tech Co Ltd

Inventors

• Gao Bo
• Dong Xue
• Chen Dong
• Sun Wei
• Shi Lingyun
• Wang Xiurong
• Liu Jinxing
• Chen Xiangyi
• Chen Xiaochuan
• Sun Jian

Classifications

• G09G5/006

  Details of the interface to the display terminal (specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04) · CPC title

• H04N7/0117

  involving conversion of the spatial resolution of the incoming video signal (for graphics images G09G2340/0407) · CPC title

• G09G2340/0428

  Gradation resolution change · CPC title

• H04N19/85

  using pre-processing or post-processing specially adapted for video compression · CPC title

• H04N19/124

  Quantisation · CPC title