WO2005122558A1 - 画質制御装置、その方法、画質処理装置、それらのプログラム、および、そのプログラムを記録した記録媒体 - Google Patents
画質制御装置、その方法、画質処理装置、それらのプログラム、および、そのプログラムを記録した記録媒体 Download PDFInfo
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- WO2005122558A1 WO2005122558A1 PCT/JP2005/010398 JP2005010398W WO2005122558A1 WO 2005122558 A1 WO2005122558 A1 WO 2005122558A1 JP 2005010398 W JP2005010398 W JP 2005010398W WO 2005122558 A1 WO2005122558 A1 WO 2005122558A1
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- image quality
- control device
- changing
- value
- setting
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- 238000000034 method Methods 0.000 title claims abstract description 90
- 238000003908 quality control method Methods 0.000 title claims description 48
- 230000008569 process Effects 0.000 claims abstract description 85
- 230000008859 change Effects 0.000 claims abstract description 56
- 230000006870 function Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4135—Peripherals receiving signals from specially adapted client devices external recorder
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/57—Control of contrast or brightness
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/482—End-user interface for program selection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4854—End-user interface for client configuration for modifying image parameters, e.g. image brightness, contrast
Definitions
- Image quality control device method thereof, image quality processing device, programs thereof, and recording medium recording the program
- the present invention relates to an image quality control device that controls the image quality of image data displayed on a screen on a display unit, a method thereof, an image quality processing device, a program thereof, and a recording medium storing the program.
- Patent Document 1 detects a dark scene in an image.
- the video signal is amplified to a high gain, clamped at the black level, and then integrated in the video area and held outside the video area. Based on this detection result, in a dark scene of the image, the brightness is increased and the contrast is reduced to keep the maximum amplitude of the chase signal constant, the color density is reduced, and the brightness, contrast, color density, etc. Controlling image quality.
- Patent Literature 2 stores image quality such as luminance, contrast, color depth, and sharpness set by a viewer in a storage unit in a control circuit for each type of program.
- the type of the program is detected from the program information of the received signal such as EPG data.
- the image quality setting condition is read from the storage means for the type of the detected program, and processed to the set image quality.
- Patent Document 1 JP-A-2000-78496 (page 4, left column, page 5, left column)
- Patent Document 2 Japanese Patent Application Laid-Open No. 2002-158941 (page 3, right column-page 6, right column)
- the present invention provides an image quality control device, a method thereof, an image quality processing device, a program thereof, and a recording medium storing the program, which satisfactorily change the image quality setting.
- the purpose is to.
- An image quality control device is an image quality control device that controls a process of adjusting the image quality by changing values of a plurality of setting factors related to image quality in a display unit that displays image data on a screen by an image quality adjustment unit.
- Request recognition means for recognizing image quality adjustment request information for requesting a change of the values of the plurality of setting factors by the image quality adjustment means; and During the process of changing the value of at least one of the set factors, the process of changing the value of at least one of the plurality of set factors is performed on the image quality.
- Image quality adjustment control means for performing control performed by the adjustment means.
- An image quality control device is an image quality control device that controls a process of adjusting the image quality by changing values of a plurality of setting factors relating to image quality in a display unit that displays image data on a screen by an image quality adjustment unit.
- the image data to be displayed on the screen by the display means.
- Data type recognizing means for recognizing the characteristics of the data, and recognizing that the characteristics of the image data are changed, a process for changing the value of at least one of the plurality of set factors.
- Image quality adjustment control means for controlling the image quality adjustment means to perform a process of changing at least one of the plurality of setting factors. I do.
- An image quality processing apparatus includes the above-described image quality control apparatus according to the present invention, and image quality adjustment means controlled by the image quality control apparatus to perform image quality adjustment processing on the display means.
- the arithmetic means controls the process of adjusting the image quality by changing the values of a plurality of set factors relating to the image quality in the display means for displaying the image data on the screen by the image quality adjusting means.
- the computing means recognizes image quality adjustment request information requesting a change of the values of the plurality of setting factors by the image quality adjustment means, and includes the image quality adjustment request information in the recognized image quality adjustment request information.
- the process of changing the value of at least one of the plurality of setting factors the value of at least one of the other plurality of setting factors is changed. It is characterized in that control for causing the image quality adjusting means to execute the changing process is performed.
- the processing for adjusting the image quality by changing the values of a plurality of setting factors related to the image quality in the display means for displaying the image data on the screen by the arithmetic means is controlled.
- the computing means recognizes the characteristic of the image data to be displayed on the screen by the display means, recognizes that the characteristic of the recognized image data is changed, and changes the characteristic of the image data.
- control for causing the image quality adjusting means to execute processing for changing the value of the factor is provided.
- the present invention is a program for controlling an image quality adjustment process characterized by causing an arithmetic unit to function as the above-described image quality control device or image quality processing device of the present invention.
- the present invention is a program for controlling an image quality adjustment process characterized by causing an arithmetic means to execute the above-described image quality control method of the present invention.
- a recording medium storing a program for controlling an image quality adjusting process, wherein the program for controlling the image quality adjusting process of the present invention is recorded so as to be readable by an arithmetic unit. It is.
- FIG. 1 is a block diagram showing a schematic configuration of a display system according to the present embodiment in an image quality processing device of the present invention.
- FIG. 2 is an explanatory diagram conceptually showing a process of stepwise changing a value of a setting factor relating to image quality by an image quality adjustment control unit in the present embodiment.
- FIG. 3 is a flowchart showing an operation of a process for adjusting image quality in the present embodiment.
- FIG. 4 is an explanatory view conceptually showing a process of changing a value of a setting factor in a stepwise manner in another embodiment of the image quality processing apparatus of the present invention.
- a display system provided with an image quality processing device having the image quality adjustment device of the present invention will be described as an example.
- the present invention is not limited to this.
- a recording / reproducing device for recording and reproducing image data The present invention can also be applied to an integrated display device having a structure for recording or reproducing only, or a structure for recording or reproducing.
- the display device is not limited to a CRT (Cathode-Ray Tube) television, but may be an image data such as a television such as a liquid crystal display or a PDP (Plasma Display Panel), or a projector such as a projector. Any configuration capable of displaying data on the screen can be applied.
- CTR Cathode-Ray Tube
- reference numeral 100 denotes a display system.
- the display system 100 is a system capable of reproducing content obtained from the outside by screen display or audio output and recording the content.
- the contents include TV broadcast programs and satellite broadcast programs obtained from broadcast waves, external devices connected to transmit and receive various data, contents such as images and audio such as output images or still images, and Internet and Examples include content such as music and video acquired through a network (not shown) such as an intranet, and content such as images and sounds related to various programs such as a game software.
- the display system 100 includes a recording / reproducing device 200, which is an external device, and a display device 300.
- the recording / reproducing device 200 is connected to the display device 300 so that various data can be transmitted and received.
- the recording / reproducing device 200 acquires and records the content, outputs the content to be recorded to the display device 300, and reproduces the content on the display device 300.
- the recording / reproducing apparatus 200 is configured to be capable of receiving broadcast waves and the like and to acquire contents via a network or the like, and includes a recording unit (not shown) for recording the contents in a readable manner.
- the recording means includes, for example, a hard disk (Hard Disk Drive; HDD), a removable optical disk such as a CD (Compact Disc) and a DVD (Digital Versatile Disc), a magneto-optical disk, a memory card, and a fixed memory. Examples include a configuration including a drive and a driver that readablely store various information in various recording media, and a configuration in which a plurality of these are combined.
- the display device 300 reproduces content obtained from a broadcast wave, a network, or a recording / reproducing device.
- the display device 300 includes a tuner section 310, an interface section 320, an operation section 330, a sound generation section 340, a display section 350, a memory 360, and a calculation section 370.
- Tuner section 310 is connected to arithmetic means 370, and is connected to antenna 311.
- the tuner section 310 receives various broadcast waves such as terrestrial analog broadcasts, terrestrial digital broadcasts, and satellite digital broadcasts via the antenna 311.
- the tuner section 310 performs a predetermined channel based on a signal output from the operation means 330. A frequency signal of a predetermined band corresponding to the channel is obtained, processed as appropriate, and output to the arithmetic means.
- the interface unit 320 is connected to the arithmetic unit 370, and is connected to the recording / reproducing device 200 and the like so that various data can be transmitted and received.
- the interface unit 320 can be connected to a network.
- the interface unit 320 acquires various data acquired from the recording / reproducing device 200, a network, or the like, processes the data as appropriate, and outputs the data to the arithmetic unit 370. Further, the interface unit 320 appropriately processes the data acquired from the arithmetic unit 370 and outputs the data to the recording / reproducing device 200 or a network.
- the operation means 330 has, for example, various operation buttons and operation knobs (not shown) which are arranged so as to be capable of performing an input operation facing the front of the display device 300.
- the operating means 330 is connected to the calculating means 370, outputs a signal corresponding to an input operation such as an operation button or an operation knob to the calculating means 370, and causes the calculating means 370 to set the content of the input operation.
- the contents of the input operation include various setting items of the operation contents of the display device 300, for example, setting of a channel of a broadcast program, setting of volume and sound quality, setting of image quality of a screen display, switching setting of a source of reproduced content. And the like.
- the operating means 330 includes, for example, a remote control light receiving section which receives various signals transmitted from a remote controller via infrared rays and outputs the various signals to the calculating means 370 as operation signals, not shown.
- a remote control light receiving section which receives various signals transmitted from a remote controller via infrared rays and outputs the various signals to the calculating means 370 as operation signals, not shown.
- the sounding means 340 includes, for example, a speaker (not shown), an amplifier, and the like.
- the sounding means 340 is controlled by the calculating means 370, and outputs various signals such as voice data from the calculating means 370 from the speaker.
- Examples of the audio data to be output as audio include, in addition to the audio data of the content, an operation sound, a confirmation sound, a warning sound, and the like corresponding to an input operation on the operation means 330.
- the display means 350 is controlled by the calculation means 370 to display the image data from the calculation means 370 on a screen.
- the image data include, for example, a video image of a content, a menu screen for character transmission and subtitles, setting items of the display device 300, and the like.
- This table As the indicating means 350, various displays such as a liquid crystal display panel, an organic EL (Electro Luminescence) panel, a PDP, a CRT, a FED (Field Emission Display), and an electrophoretic display panel can be applied.
- the memory 360 appropriately stores, in a readable manner, various data processed by the calculating means 370, such as setting items input by the operating means 330, music data and image data.
- the memory 360 also stores various programs and the like that are deployed on an OS (Operating System) that controls the operation of the entire display device 300.
- the memory 360 is a memory that retains its memory even when the power is suddenly shut down due to a power failure or the like, for example, a CMOS (Complementary Metal-Oxide Semiconductor) memory.
- CMOS Complementary Metal-Oxide Semiconductor
- the memory 360 may be configured to include a drive or a driver that can read data from a recording medium such as an HD, DVD, optical disk, or memory card, or may be configured to combine a plurality of these. ,.
- the memory 360 is associated with a value of a setting factor related to the image quality of the display unit 350, which will be described later in detail, corresponding to the source of the image data to be displayed on the screen by the display unit 350.
- Stored image quality setting information For example, the display unit 350 optimally displays the image data for each source, such as the type of broadcast wave obtained by the tuner unit 310, the type of content obtained from the outside such as a recording / reproducing device or network obtained by the interface unit, etc.
- the optimal setting factor value is set.
- the calculating means 370 includes, for example, a CPU (Central Processing Unit), and various input / output ports, such as a receiving port to which the tuner section 310 is connected and a data receiving port to which the interface section 320 is connected, not shown. It has an input port to which the operation means 330 is connected, an audio control port to which the sounding means 340 is connected, a display control port to which the display means 350 is connected, a memory port to which the memory 360 is connected, and the like.
- the arithmetic means 370 includes, as various programs, a data processing means 371, a data characteristic recognizing means 372, a request recognizing means 373, an image quality adjusting means 374, an image quality adjusting control means 375, and the like. .
- the data processing means 371 acquires contents output from the tuner section 310 and the interface section 320, and the like. Then, the data processing unit 371 performs appropriate processing such as decoding processing of the acquired content, and extracts audio data and image data. Extract The sound data is output to the sounding means 340, and the image data is output to the display means 350. This output is appropriately synchronized so that the state of sound output by the sounding means 340 and the state of the screen display on the display means 350 are synchronized.
- the data processing means 371 acquires image data related to a predetermined form, such as a menu screen related to setting items, from the memory 360 based on an operation signal output in response to an input operation from the operation means 330, and displays the acquired image data. The information is processed into a display state by the means 350 and output to the display means 350.
- the data characteristic recognizing unit 372 recognizes the characteristic of the image data in the content acquired by the data processing unit 371, that is, the source that is the type.
- the information on the recognized source is output to the image quality adjustment control unit 375.
- the request recognizing unit 373 recognizes image quality adjustment request information for changing the value of a setting factor relating to the image quality of the display unit 350.
- the image quality value request request information is recognized, for example, based on an operation signal corresponding to a predetermined input operation on the operation means 330 by the user.
- the request recognition unit 373 obtains, as image quality adjustment request information, an input signal for changing the value of a direct setting factor such as an operation button or an operation signal based on an input command for switching a source. Recognize a request to change the value of a factor.
- the recognized image quality adjustment request information is output to the image quality adjustment control unit.
- the image quality adjusting means 374 controls the display means 350, and adjusts the image quality when image data is displayed on the screen by the display means 350.
- the adjustment of the image quality can be obtained by performing a process of appropriately setting the values of a plurality of setting factors related to the image quality such as brightness, contrast, black density, hue, and color density.
- the image quality adjustment unit 374 controls the setting of the value of the setting factor by the image quality adjustment control unit 375.
- the setting factor is not limited to a configuration in which all of brightness, contrast, black density, color tone, color density, etc. are set, and at least two or more of these are set.
- the image quality adjustment control unit 375 controls the image quality adjustment unit 374 based on the information on the source recognized by the data characteristic recognition unit 372 and the image quality adjustment request information recognized by the request recognition unit 373, and adjusts the image quality.
- the image quality adjusting process in the means 374 is controlled.
- the control for executing the image quality adjustment processing by the image quality adjustment unit 374 is performed, for example, with respect to the source. If the source of the image data to be displayed on the display means 350 is recognized to be a source different from the source of the image data that has been displayed based on the information, the information is described in the image quality adjustment request information. This is performed based on the source switching request by the input operation or the direct image quality adjustment request.
- the image quality adjustment control unit 375 controls the image quality adjustment unit 374 to directly change the value of the setting factor in accordance with the input operation.
- the image quality adjustment control unit 375 reads the image quality setting information stored in the memory 360 in advance corresponding to the source to be switched, and based on the image quality setting information, determines the setting factor. The value is changed by the image quality adjusting means 374 with predetermined setting contents.
- the process of changing the value of at least one of the plurality of setting factors during the process of changing the value of at least one of the other setting factors is performed.
- a process to change the value of one set factor is performed. That is, the process of changing the value of each set factor is divided into a plurality of times without directly changing the target value, and the process of changing the value of another set factor is interposed between these processes.
- the status is changed step by step. Specifically, as shown in Fig. 2, the brightness is set in the range of “ ⁇ 5”, the contrast and the darkness of black are set for three setting factors corresponding to brightness, contrast, and darkness of image quality, respectively.
- FIG. 2 is a flowchart showing the operation of the processing for adjusting the image quality.
- the calculating means 370 reads the setting items stored in the memory 360 and immediately before the power is turned off, the display means 350 Recognizes the source of the image data displayed on the screen. Then, the arithmetic means 370 enters a state of waiting for the acquisition of the image data of the previous source immediately before the power is turned off. Specifically, if a broadcast program was previously acquired and reproduced, the broadcast program of the same channel is received and processed by the tuner section 310, and the content output from the tuner section 310 is acquired. It goes into a standby state.
- the apparatus enters a standby state for outputting the content from the recording / reproducing apparatus 200 or the network.
- the arithmetic means 370 includes, for example, image data of a standby screen previously stored in the memory 360 or image data of a preset standby screen from the recording / reproducing apparatus. It is in the state of waiting for acquisition.
- the computing unit 370 appropriately processes the acquired content to extract audio data and image data.
- the extracted audio data is output to the sounding means 340 and output as sound by the sounding means 340, and the image data is output to the display means 350 and displayed on the screen by the display means 350, and the content is appropriately reproduced. Let it.
- the arithmetic means 370 receives a request to switch the source of the content to be reproduced in accordance with a predetermined input operation by the operation means 330 by the request recognition means 373. Is determined (step S101). In other words, the arithmetic means 370 is in a standby state for a source switching request to be in a standby state for an image quality adjustment processing request.
- the image quality adjustment request information is acquired by the request recognition means 373, and when the image quality adjustment control means 375 recognizes that it is a source switching request from the acquired image quality adjustment request information, The image quality adjustment control means 375 responds to the source of the switching request from the image quality setting information stored in the memory 360 in advance.
- the corresponding image quality setting information is read, and the value of the setting factor is obtained based on the image quality setting information (step S102).
- step S102 the setting items stored in the memory 360 are read, and the value of the set factor of the image quality which has been set so far is changed to the value of the set factor to be changed obtained in step S102.
- the value of the setting factor corresponding to the predetermined contrast is compared with the value of the setting factor corresponding to the new contrast (step S103). If it is determined in step S103 that the set factor value is different, the image quality adjustment unit 374 performs a process of adding “2”, which is a two-stage previously set value. Step S104). Thereafter, a process of changing other setting factors other than the contrast is performed.
- step S105 the value of the setting factor corresponding to the predetermined black density is compared with the value of the setting factor corresponding to the new black density. On the other hand, if it is determined in step S103 that the values of the set factors are the same, the process proceeds to step S105.
- step S105 If it is determined in step S105 that the state is different from the state in which the value of the set factor corresponding to the darkness of black is increased, a process of adding “2”, which is a preset two stages, is performed by the image quality adjustment unit. The process is performed at 374 (step S106). Thereafter, a process of changing other setting factors other than the black density is performed. That is, the value of the setting factor corresponding to the predetermined brightness is compared with the value of the setting factor corresponding to the new brightness (step S107). On the other hand, if it is determined in step S105 that the values of the set factors are the same, the process proceeds to step S107.
- step S107 If it is determined in step S107 that the state is different from the state in which the value of the set factor corresponding to the brightness is reduced, a process of subtracting “2”, which is a preset two levels, is performed by the image quality adjustment unit. The process is performed at 374 (step S108). Thereafter, it is determined whether adjustment of all set factors, that is, change of values has been completed (step S109). On the other hand, if it is determined in step S107 that the values of the set factors are the same, the process proceeds to step S109.
- step S109 If it is determined in step S109 that the change of the values of all the setting factors has not been completed, the process returns to step S103 to continue the process of changing the values of the setting factors. On the other hand, in step S109, it is determined that the change of the values of all the setting factors is completed. In this case, the control of the execution of the image quality adjustment processing by the image quality adjustment means 374 ends.
- the default image quality is “5” for brightness, “0” for contrast, and “0” for darkness of black and dark image quality.
- the new image quality is a gray-scale image quality with a brightness of “— 5”, a contrast of “5”, and a darkness of black of “5”. Then, in the case of the configuration of the comparative example in which the value is directly changed to the new value, the contrast is changed to “5”, the black density is changed to “5” with, and the brightness is changed to “1-5”.
- the contrast will be "5", the black density will be “0”, and the brightness will be "5" until the black density is changed after the contrast is changed.
- This image quality state results in a very bright image quality. This may cause a user to perceive the screen as a flicker that makes the screen bright for a moment, such as noise, when directly changing it.
- recording from the optimum image quality for television program broadcasting is performed by inputting a setting for switching from a television program broadcasting source to a content source recorded on recording means such as HD or DVD of the recording / reproducing apparatus 200.
- the value of the image quality setting factor is changed stepwise. For this reason, it is possible to prevent a sudden change in the image quality during the processing, and it is possible to prevent the screen from flickering due to the image quality adjustment processing accompanying the source switching.
- the image quality adjustment control means 375 determines at least one of the plurality of setting factors during the process of changing the value of one of the setting factors.
- the image quality adjusting means 374 controls to change the value of the set factor. Specifically, the change of the value of the set factor is set to a plurality of stages, and the change of the value of another set factor is sequentially repeated for each stage. For this reason, in the process of changing the image quality, it is possible to prevent flickering of the screen due to a sharp change in the image quality, to change the image quality setting satisfactorily, and to achieve good image quality adjustment.
- the values of other set factors are sequentially changed in each stage. For this reason, a smooth change in image quality can be obtained by a simple processing step of sequentially changing each set factor. As a result, simplification of the configuration, faster processing, etc. Can also be easily obtained. Furthermore, the contrast is changed step by step in the cycle of contrast ⁇ black density ⁇ brightness. For this reason, the processing steps can be simplified as long as the processing is performed in a cycle in the order set as rough as possible, and the configuration can be further simplified and the processing speed can be increased. The change is made in multiple stages. Therefore, the process of sequentially changing the values of the different setting factors can be easily performed, and the image quality can be smoothly adjusted.
- the type of image data that is, a change in source is recognized. For this reason, it is particularly useful in a configuration in which the image quality is adjusted for each source to optimally view the image data, and good viewing without inconveniences such as flickering each time the source is switched is obtained.
- a configuration for controlling the image quality adjustment processing as a program in the arithmetic means 370 is constructed so that the control of the image quality adjustment processing can be executed. For this reason, by incorporating a program and further using a recording medium on which the program is recorded, the above processing can be easily obtained, and the use can be easily expanded.
- the present invention is not limited to the above-described embodiments, but includes the following modifications as long as the object of the present invention can be achieved.
- the reproduction apparatus 200 may take any form, such as controlling the image quality of the display apparatus 300 to be adjusted, or using a dedicated apparatus configuration for controlling the image quality adjustment processing.
- the present invention is not limited to the system configuration such as the display system 100, and may be an integrated configuration in which the display device 300 includes a recording unit.
- the display apparatus 3 The control signal may be output in advance, or may be output simultaneously with the content, so that the image quality adjustment means 374 of step 00 makes the adjustment stepwise. Further, the control signal may be output as a control signal indicating that the source is switched, and the image quality adjustment control unit 375 of the display device 300 may recognize the change and perform the above-described control. Furthermore, a new set factor value may be output as a control signal, acquired by the display device 300, and controlled in a stepwise manner so as to obtain the value.
- the acquired content is not limited to a television broadcast program, but may be a radio broadcast program, a satellite broadcast program, content such as distributed music and video, various programs such as game software, and the like. Can also be targeted. That is, when a game machine is connected to the interface unit 320, the image quality is adjusted by recognizing the type of image data based on the operation of the software of the game machine or recognizing the source. If you judge whether there is processing or not.
- the stepwise change of the setting factor has been described by setting each setting factor in a stepwise manner. For example, any one of brightness, contrast, and darkness is set. Only stepwise may be changed. Further, for example, as shown in FIG. 4, a process may be performed in which a setting factor having a large difference between values to be changed is changed by two stages, and another setting factor is changed by one stage. In such a configuration, the difference between the values before and after the change of the setting factor is recognized, the value stage to be changed is set based on the difference between the values, and the value is changed by the image quality adjustment means 374 at the set stage. What is necessary is just to make it set.
- the amount of the stepwise change may be changed as appropriate, for example, the change is made one step at a time at the beginning and two steps at a time in the middle. By making the amount of such stepwise change different, a more continuous change in image quality can be obtained.
- three setting factors of brightness, contrast, and darkness are used to change and explain the power in the cycle of contrast ⁇ darkness ⁇ brightness, and other setting factors such as color saturation and hue. If there are constant factors, they may be intervened, for example, they may be sequentially changed step by step in the cycle of contrast ⁇ black density ⁇ brightness ⁇ color density ⁇ hue.
- the order of the cycle is not limited to these, and can be set as appropriate, and the order may be changed for each process. For example, in the case of the above three setting factors, changing the brightness in two steps will affect brightness.
- contrast black density Since the contrast black density has already been completed before the processing to change the value of the corresponding setting factor is completed, for example, processing in a cycle of brightness ⁇ contrast ⁇ brightness ⁇ black density is performed. You can. In addition, before the process of changing the value of any of the setting factors is completed, even if the process of changing the values of the other setting factors in parallel is executed without sequentially changing the values in a cycle. Good.
- the switching of the content source is recognized as a request for adjusting the image quality, and is not limited to the switching of the power source described above.
- the image quality adjustment is performed by recognizing the change in the type of the image data.
- the processing may be controlled.
- the present invention can be applied to the case of switching from terrestrial analog broadcasting to terrestrial digital broadcasting or digital signal satellite broadcasting.
- the processing for adjusting the image quality may be controlled by recognizing that the content of the content changes, for example, switching from a news program to a night game sports program.
- the content of the content may be recognized based on information on the content of the content such as EPG data as an electronic program guide.
- the value of the set factor may be calculated as described above.
- the setting factor of the previous setting factor is determined based on the difference from the characteristics of the previous image data.
- the value of the setting factor to be changed may be calculated based on the value, and the calculated value of the setting factor may be changed as the above-described new value.
- the power of building each of the above-described functions as a program can be used in various forms such as, for example, hardware such as a circuit board or one element such as an IC. it can.
- a program or a separate recording medium is read, it is easy to handle, and it is possible to easily make a computing device such as a computer function as an information processing device (CPU) or a recording / reproducing device 200. Enlargement is easy.
- the image quality adjusting unit 374 controls the image quality adjusting unit 374 to change the value of at least one of the other setting factors. For this reason, in the process of changing the image quality, it is possible to prevent the screen from flickering due to a sudden change in the image quality, and to satisfactorily change the image quality setting.
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- Engineering & Computer Science (AREA)
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- Signal Processing (AREA)
- Controls And Circuits For Display Device (AREA)
- Television Receiver Circuits (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/628,781 US8212936B2 (en) | 2004-06-10 | 2005-06-07 | Picture quality control apparatus, method therefor, picture quality processing apparatus, programs for them, and recording medium recording that program therein |
JP2006514507A JP4503598B2 (ja) | 2004-06-10 | 2005-06-07 | 画質制御装置、その方法、画質処理装置、それらのプログラム、および、そのプログラムを記録した記録媒体 |
Applications Claiming Priority (2)
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JP2004-172583 | 2004-06-10 | ||
JP2004172583 | 2004-06-10 |
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WO2005122558A1 true WO2005122558A1 (ja) | 2005-12-22 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/010398 WO2005122558A1 (ja) | 2004-06-10 | 2005-06-07 | 画質制御装置、その方法、画質処理装置、それらのプログラム、および、そのプログラムを記録した記録媒体 |
Country Status (4)
Country | Link |
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US (1) | US8212936B2 (ja) |
JP (1) | JP4503598B2 (ja) |
CN (1) | CN1965573A (ja) |
WO (1) | WO2005122558A1 (ja) |
Cited By (2)
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JP2006245745A (ja) * | 2005-03-01 | 2006-09-14 | Mitsubishi Electric Corp | デジタル放送受信装置 |
CN103716562A (zh) * | 2013-12-31 | 2014-04-09 | 乐视致新电子科技(天津)有限公司 | 图像质量参数存储方法及系统 |
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JP5147506B2 (ja) * | 2008-04-09 | 2013-02-20 | 三洋電機株式会社 | 映像表示装置 |
US9449253B2 (en) * | 2012-01-16 | 2016-09-20 | Google Inc. | Learning painting styles for painterly rendering |
WO2014083669A1 (ja) * | 2012-11-30 | 2014-06-05 | 日立マクセル株式会社 | 映像表示装置、及びその設定変更方法、設定変更プログラム |
CN105828922B (zh) | 2013-12-16 | 2019-06-21 | 东丽株式会社 | 半透膜的制造方法及半透膜 |
JP6590476B2 (ja) * | 2014-10-28 | 2019-10-16 | キヤノン株式会社 | 画像表示装置 |
CN105872311B (zh) * | 2016-05-30 | 2019-08-16 | 深圳Tcl数字技术有限公司 | 高动态范围画面切换方法及装置 |
WO2018003643A1 (ja) * | 2016-07-01 | 2018-01-04 | シャープ株式会社 | 映像表示装置、テレビジョン受像機、送信装置、制御プログラム及び記録媒体 |
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Also Published As
Publication number | Publication date |
---|---|
JP4503598B2 (ja) | 2010-07-14 |
US20110102680A1 (en) | 2011-05-05 |
CN1965573A (zh) | 2007-05-16 |
US8212936B2 (en) | 2012-07-03 |
JPWO2005122558A1 (ja) | 2008-04-10 |
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