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Switching device of QVGA/QCIF image

A technology of image conversion and converter, which is applied in the field of QVGA/QCIF image conversion devices, can solve the problems that image data cannot be converted into image data, image data cannot be displayed in QCIF images, etc., and achieve the effect of reducing the amount of calculation

Inactive Publication Date: 2006-03-29
LG ELECTRONIC (HUIZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] As mentioned above, the image data of existing VGA format can not be shown on the display screen of QCIF image, and this is a shortcoming of prior art
[0007] In addition, image data in QVGA or VGA size cannot be converted to image data in QCIF format, which is another shortcoming of the prior art

Method used

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  • Switching device of QVGA/QCIF image
  • Switching device of QVGA/QCIF image
  • Switching device of QVGA/QCIF image

Examples

Experimental program
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Embodiment Construction

[0027] An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] FIG. 1 is a schematic structural diagram of a QVGA / QCIF image conversion device as an embodiment of the present invention.

[0029] Referring to FIG. 1 , it can be seen that the QVGA / QCIF image conversion device as an embodiment of the present invention includes a YcbCr splitter 100 , a QVGA / QCIF converter 110 , an RGB converter 120 , and a display screen 130 .

[0030] The above-mentioned YCbCr separator 100 receives the image data in QVGA format from the above-mentioned photographic equipment, and separates them into Y, Cb, and Cr data respectively. In detail, the image data in QVGA format received from the above-mentioned photographic equipment is a compressed (packing) YCbCr form image data, so the above-mentioned YCbCr separator 100 will decompress (Unpacking) the image data in the above-mentioned QVGA format respectively. for Y, Cb, Cr, a...

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Abstract

This invention relates to a QVGA / QCIF image conversion device composed of the following components: a YCbCr separator receiving QVGA image data from a camera device separating them into Y, Cb and Cr data and storing them, an image converter converting the above mentioned data image to QCIF form by a definite method and a RGB converter converting the data converted by the image converter to RGB, which can reduce the computing volumes for processing QVGA or VGA image data and convert them to QCIF image data.

Description

(1) Technical field [0001] The invention relates to a QVGA / QCIF image conversion device for converting VGA image data into QCIF format so that the image data can be displayed on a mobile communication terminal. (2) Background technology [0002] In the 2.5G and 3G era, many mobile phones use a 176*220 color display. The part related to QCIF (176*144) is used to display images such as JPEG and videos such as MPEG4, and the rest of the lower part is used to display various subtitles and menus. [0003] On the other hand, the image captured by the camera attached to the mobile phone is in VGA format, and outputs QVGA, QQVGA images, which are not suitable for displaying on the screen of QCIF images. If the image in this VGA format is displayed on the QCIF image display screen, its image will be very small, and the remaining parts around it will be blank. [0004] For example, the size of a QVGA image is 320*240, while the size of a QCIF image is 176*220. Their horizontal and v...

Claims

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Application Information

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IPC IPC(8): H04N7/01G06T3/00
Inventor 房熙锡
Owner LG ELECTRONIC (HUIZHOU) CO LTD
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