Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Image device, image processing system and method thereof

An image processing and image technology, applied in image communication, television, electrical components, etc., can solve the problems of low image quality, low bit transmission rate of compressed images, etc., and achieve the effect of reducing the number of pictures

Active Publication Date: 2009-02-11
MEDIATEK INC
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increasing the quantization level will cause more bits to be truncated during encoding, resulting in a compressed image with lower bit rate and lower image quality

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image device, image processing system and method thereof
  • Image device, image processing system and method thereof
  • Image device, image processing system and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0038] refer to figure 1 , the video controller 10 includes a video codec (video codec) 8 , a display controller 18 and a memory device 22 . The video codec 8 includes a video decoder 12 and a video encoder 14 . Image controller 10 receives input encoded image 26 and generates output encoded image 30 . The input encoded image 26 and the output encoded image 30 may be transmitted as a continuous bit stream. The input coded image 26 and the output coded image 30 may have frames coded according to different compression algorithms, and different compression algorithms have different compression ratios or resolutions. Display controller 18 generates video signal 27 for display 28 . Each image 26 and 30 includes consecutive frames. During frame decoding, encoding, and display, certain frames are temporarily stored in memory device 22 . The video decoder 12, the video encoder 14, and the display controller 18 share the memory device 22, so that the number of frames that must be ...

no. 1 approach

[0043] refer to Figure 2A , in the first embodiment, the input encoded image 26 at the input end is a high bit rate compressed image, and the output encoded image 30 at the output end is a low bit rate compressed image. The input coded image 26 has the same resolution as the output code 30 . Both the input encoded image 26 and the output encoded image 30 have frames sorted in encoding order. Display controller 18 transmits the decompressed frames to display 28 with a high bit rate and sorted in display order. The image controller 10 outputs a compressed image 30 with a low bit rate (eg, for storage), while the display 28 displays a decompressed image with a high bit rate. The frames of the input encoded image 26 and the output encoded image 30 may be encoded according to the MPEG standard.

[0044] Higher bit-rate compressed video has a higher bit rate than lower bit-rate compressed video, while high bit-rate decompressed video ) has a higher bit rate than lower bit-rate ...

no. 2 approach

[0067] In the second embodiment, the low-bit-rate compressed image 30 has a lower resolution than the high-bit-rate compressed image 26 . Compressed images 26 and 30 may have the same or different compression ratios (eg, quantization levels). For example, the input encoded image 26 may have a resolution of 1920*1080, while the output encoded image 30 may have a resolution of 1366*768. The encoded images 26 and 30 are frames sorted in encoding order. The display controller 18 transmits the high resolution frames sorted in display order to the display 28 . Therefore, the image controller 10 outputs the low-bit-rate compressed image 30 with low resolution while displaying the high-resolution image on the display 28 .

[0068] like Figure 2B As shown, the arrangement of the memory buffer in the memory device 22 in the second embodiment is the same as that in the first embodiment. The input buffer 100 stores high-resolution compressed frames, and the output buffer 116 stores l...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A video apparatus, a video processing system and a method thereof are provided. The video processing apparatus includes a video decoder and video encoder for processing video frames. The video decoder generates de-compressed frames from the first compressed video frames, and writes the de-compressed frames to the storage, wherein at least one of the de-compresse frames is generated according to the de-compressed frames previously generated. The video encoder generates the second compressed video frames from said de-compressed frame without the repetition of said de-compressed frames. The video processing method includes the following steps: a plurality of de-compressed frames are generated from the first compressed video which have successive compressed frames arranged according to the display order; the second compressed video is generated from the de-compressed frames without the de-compressed frames stored to the storage repeatedly. The smaller memory is adapted to transcoding or displaying.

Description

technical field [0001] The invention relates to a shared memory technology suitable for image conversion coding and image display, specifically an image device, an image processing system and a method thereof. Background technique [0002] Image converters facilitate decoding encoded images (eg compressed images) and encoding decoded images according to different encoding schemes. An image includes continuous frames (also called images), and each frame includes several rows and columns of pixels. The converter can receive the first compressed image and generate the second compressed image. Compared with the first compressed image, the second compressed image has a higher compression ratio and / or a lower resolution. [0003] In some embodiments, the first compressed image has the same resolution as the second compressed image (each frame in the first compressed image has the same number of columns and lines as each frame in the second compressed image) but has Different bit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N7/24H04N19/40H04N19/423H04N19/61
Inventor 何镇在
Owner MEDIATEK INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com