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Image processing apparatus

An image processing device and image processing technology, applied in image communication, television, standard conversion, etc., can solve problems such as inability to provide users with a sense of unity of characters and different shapes of characters

Inactive Publication Date: 2008-01-23
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Conventional image processing devices are structured as above, so there is a problem that if characters generated from the same font set are embedded in a plurality of images with different pixel aspect ratios, and converted in accordance with the image resolution of one monitor, then The shape of the characters displayed for each input image is different, and it is impossible to provide the user with a sense of unity in the characters displayed on the screen

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0025] FIG. 1 is a block diagram showing the configuration of an image processing apparatus according to Embodiment 1 of the present invention. For example, an image processing device that presents car navigation and TV broadcasting on one monitor is shown.

[0026] The image processing device 1 includes an antenna 11 for car navigation, a car navigation processing unit (first image processing unit) 12, a WQVGA (Wide Quarter Video Graphics Array) signal line 13, an antenna 14 for TV, and a TV reception processing unit (second image processing unit). Parts) 15, NTSC (National Television System Committee) signal line 16, image resolution conversion part 17 and switch 18, and with the character set (character set) 2 corresponding to WQVGA and the monitor (display part) corresponding to WQVGA )5 connections.

[0027] In FIG. 1 , the car navigation antenna 11 receives GPS (Global Positioning System, Global Positioning System) satellite radio waves, FM (Frequency Modulation, Freque...

Embodiment 2

[0072] In the above-mentioned embodiment 1, image resolution conversion is carried out after pixel aspect ratio conversion is performed on the synthetic graphics of graphics, still images, and text data, and the image resolution is converted and output to the monitor 5 corresponding to WQVGA, thereby making use of the same WQVGA corresponding The character outlines on the output images of the car navigation processing part 12 and the TV receiving processing part 15 having different image formats of the character font set 2 are similar, but in the second embodiment, only the pixel aspect ratio conversion is performed on the character data.

[0073] The block diagram showing the configuration of the image processing apparatus according to the second embodiment of the present invention is the same as that in FIG. 1 of the above-mentioned first embodiment.

[0074]Fig. 4 is a block diagram showing the internal structure of a TV reception processing section of the image processing a...

Embodiment 3

[0084] In the first and second embodiments above, pixel aspect ratio conversion is performed for each character one by one, but in the character font set 2 compatible with WQVGA, depending on its structure, it may be output as a character string. In the third embodiment, the character font set 2 corresponding to WQVGA that outputs character graphics as such character strings is used to perform pixel aspect ratio conversion on the character strings.

[0085] The block diagram showing the configuration of the image processing apparatus according to the third embodiment of the present invention is the same as that in FIG. 1 of the above-mentioned first embodiment.

[0086] Fig. 5 is a block diagram showing the configuration of a TV reception processing section of the image processing apparatus according to Embodiment 3 of the present invention. In this TV reception processing unit 15, the character pixel aspect ratio conversion unit 107 shown in FIG. Transformation part) 108, ot...

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Abstract

An image processing device includes a car navigation processing unit 12 for processing a WQVGA signal, a TV receiving processing unit 15 for processing an NTSC signal, and an image resolution converting unit 17 which carries out an image resolution conversion of the NTSC signal from the TV receiving processing unit 15 to a WQVGA signal. The TV receiving processing unit 15 includes a pixel aspect ratio converting unit 104 for carrying out a pixel aspect ratio conversion of character data acquired from a WQVGA-ready character-font set 2, and a graphics / TV image compositing unit 106 for compositing an output from the pixel aspect ratio converting unit 104 with the NTSC signal, and for outputting a composite signal to the image resolution converting unit 17.

Description

technical field [0001] The present invention relates to an image processing device for processing images of various image formats. Background technique [0002] As a conventional image processing device, for example, Patent Document 1 describes: an input unit for inputting a video signal; a recording unit for recording the input video signal on a recording medium; and a playback unit for reproducing the recorded video signal. A unit; a detection unit that selectively detects the aspect ratio of an input video signal and a reproduced video signal; a text image output unit that outputs a text image signal of a corresponding aspect ratio corresponding to the detection result of the detection unit; the output text The superimposing unit that superimposes the image signal on the video signal detected by the detection unit can adapt the aspect ratio of the character image signal to match the aspect ratio of the video signal, and display video information and character information ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/26G09G5/00H04N5/445H04N7/01H04N5/44
CPCH04N21/432G09G2340/10H04N21/42653G09G2340/0407G09G5/243G09G5/227H04N21/4622G09G2340/0442G09G5/26H04N9/641H04N7/0122H04N21/42202H04N7/01H04N21/4312G09G2340/125H04N5/44504H04N21/478H04N21/440272H04N21/44016
Inventor 藤田结佳高桥利至堀淳志川浦健央平松晃一比田井正司
Owner MITSUBISHI ELECTRIC CORP