CN202004903U

CN202004903U - High definition portable visual aid based on field programmable gate array (FPGA)

Info

Publication number: CN202004903U
Application number: CN2011201005678U
Authority: CN
Inventors: 冯祎; 鲁远耀; 童立靖; 肖珂; 宋丽华; 王景中; 付晓玲
Original assignee: North China University of Technology
Current assignee: North China University of Technology
Priority date: 2011-04-08
Filing date: 2011-04-08
Publication date: 2011-10-05
Anticipated expiration: 2021-04-08

Abstract

The utility model discloses a high definition portable visual aid based on a field programmable gata array (FPGA), which belongs to the technical field of an image processing device. The visual aid comprises a charge coupled device/ complementary metal-oxide-semiconductor (CCD/CMOS) detector control unit, a light-emitting diode (LED) secondary light source unit, a field programmable gata array (FPGA) control unit, an image data caching unit and an image display unit. The CCD/CMOS detector control unit, the LED secondary light source unit, the image data caching unit and the image display unit is connected with the FPGA control unit respectively. The high definition portable visual aid is not limited by a CCD/CMOS detector port, can furthest exert all functions and performances of a CCD/CMOS detector, has superiorities in image data processing and image displaying speed, possesses control ability with high instantaneity, can conduct visual aid for characters or real objects for a long distance, provides more visual aid convenience for users, provides an audio and video (AV) output interface, and brings convenience in users to water an image on a monitor.

Description

The portable visual aids of high pixel based on FPGA

Technical field

The utility model belongs to the image processing equipment technical field, relates in particular to a kind of portable visual aids of high pixel based on FPGA.

Background technology

The technology that at present existing related invention adopts is based on the image processing application specific processor of system level chip SOC (System on a Chip), the processor that prior art adopts is not general relatively to the CCD/CMOS prober interface, to the relative medelling of the control of acquisition of image data, to view data handle and the real-time that shows not prompt enough, and can't adjust the distance literal far away or material object help and look.

Summary of the invention

Not general at the prior art of mentioning in the above-mentioned background technology to the CCD/CMOS prober interface, can't help longer-distance literal or material object and deficiency such as look, the utility model proposes a kind of portable visual aids of high pixel based on FPGA.

The technical solution of the utility model is based on the portable visual aids of high pixel of FPGA, to it is characterized in that this visual aids comprises CCD/CMOS detector control unit, LED secondary light source unit, FPGA control unit, view data buffer unit and image-display units;

CCD/CMOS detector control unit, LED secondary light source unit, view data buffer unit and image-display units are connected with the FPGA control unit respectively.

Described image-display units comprises LCD interface and AV video output interface.

The utility model is not subjected to the restriction of CCD/CMOS prober interface, can bring into play the repertoire and the performance of CCD/CMOS detector to greatest extent; Have advantage in view data processing and image display speed, and have the very high control ability of real-time; Can adjust the distance literal far away or material object helps and looks, and looks facility for the user provides more to help; And AV is provided video output interface, be convenient to the user and on monitor, watch image.

Description of drawings

Fig. 1 is a structure chart of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that following explanation only is exemplary, rather than in order to limit scope of the present utility model and application thereof.

The utility model CCD/CMOS detector control unit, LED secondary light source unit, on-site programmable gate array FPGA (Field-Programmable Gate Array) control unit, view data buffer unit and image-display units, the annexation between the each several part as shown in Figure 1.

The course of work of system is as follows:

System powers on, and CCD/CMOS detector control unit begins detector is carried out the initialization setting, makes detector remain on optimum Working, for subsequent conditioning circuit provides view data.

After the initialization of detector finished, the FPGA control unit began the data that pick-up probe is gathered, and frame data that will collect are cached to the view data buffer unit; The FPGA control unit according to user's needs the view data in the buffer memory is carried out binaryzation, denoising or view data such as color transformed is handled; The image that the FPGA control unit will finally be handled well is passed to image-display units, and image-display units is shown to LCD with image and goes up and export by the AV video interface.

The user can be according to image effect on the LCD or AV video effect, by regulating LED secondary light source part and FPGA control section, strengthen picture contrast from outside secondary light source respectively and images acquired is carried out image enhancement processing, make the user obtain best helping and look effect with inner.

The utility model is not subjected to the restriction of CCD/CMOS prober interface, can bring into play the repertoire and the performance of CCD/CMOS detector to greatest extent; Have advantage in view data processing and image display speed, and have the very high control ability of real-time; Not only can help and look, and can adjust the distance literal far away or material object help and look, look facility for the user provides more to help to in-plant literal or material object.

The utility model is paid attention to real-time demonstration and image amplifying power to images acquired in the high speed acquisition image, and can carry out binaryzation, denoising and processing such as color transformed to images acquired, obviously improves image processing and display speed; Can fix in real time and be helped literal or the material object of looking, and can be up to 32 times amplification helping image of looking or the image that fixes in real time; The illumination of adjustable LED secondary light source is provided, can regulates brightness, allow and of the present utility modelly help that to look effect more outstanding according to actual environment for use; To help literal or the material picture looked to be presented on the lcd screen in real time, and can regulate the brightness of lcd screen, be fit to the user and use; And AV is provided video output interface, be convenient to the user and on monitor, watch image.

The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.

Claims

1. based on the portable visual aids of high pixel of FPGA, it is characterized in that this visual aids comprises CCD/CMOS detector control unit, LED secondary light source unit, FPGA control unit, view data buffer unit and image-display units;

2. according to the described portable visual aids of high pixel of claim 1, it is characterized in that described image-display units comprises LCD interface and AV video output interface based on FPGA.