APPARATUS AND METHOD FOR PREPARING, STORING, TRANSMITTING AND DISPLAYING IMAGES

• US 20130155085A1
• Filed: 08/10/2012
• Published: 06/20/2013
• Est. Priority Date: 03/10/2003
• Status: Active Grant

• Current Assignee: Fergason Licensing LLC
• Original Assignee: Fergason Patent Properties
• Inventors: Fergason, James L.
• Granted Patent: US 9,881,588 B2
• Time in Patent Office: Days
• US Class Current: 345/545
• CPC Class Codes: G09G 2320/0646 Modulation of illumination source brightness and image signal correlated to each other
• CPC Class Codes: G09G 2320/0673 for control of gamma adjustment, e.g. selecting another gamma curve
• CPC Class Codes: G09G 2370/04 Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• CPC Class Codes: G09G 5/10 Intensity circuits
• CPC Class Codes: H04N 23/63 by using electronic viewfinders
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/772 the recording apparatus and the television camera being placed in the same enclosure
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal

Abstract

An imaging and display apparatus for passive displays evaluates the illumination of an input scene and incorporates data representative of such input scene within a transfer media. The transfer media may be a broadcast or transmission of image data, illumination data and gamma information that can be received by a display system, which includes a passive display illuminated by incident light, to display images while adjusting the incident light and/or gamma based on the received data to reduce energy requirements, to increase contrast or shades of gray in the displayed image, and to optimize light source operation for color fidelity. The data may be provided as a video signal, modulated video signal, s-video signal, digital signal, or other signal that can be used by a passive display system to display images.

Claims

1-48. -48. (canceled)

49. A display system for passive displays, wherein the display system is configured to receive an input signal including separately encoded display illumination control data and image data, the display system comprising:

a control configured to process the separately encoded display illumination control data included in the input signal and to control the optical characteristics of incident light to a passive display based on the separately encoded display illumination control data.

50. The display system of claim 49, wherein the control is configured to process the display illumination control data based on a maximized number of shades of gray in the displayed image.

51. An image processing system for preparing control data for use in displaying a sequence of images, such control data to be included with input image data to a passive display with an illuminating light source and used to control the illuminating light source, the image processing system comprising:

a buffer memory to receive image data representative of the sequence of images,

an analyzer configured to analyze image data of a plurality of images of the sequence of images, to create illumination control data for use in controlling optical characteristics of the incident light to a light modulating display, and to separately encode the illumination control data together with the input image data in a combined output signal of the image processing system to be used as input to a passive display with an illuminating light source.

52. The image processing system of claim 51, further comprising a transfer media for transferring the combined output signal including the illumination control data and the image data to a display, said transfer media comprising at least one of broadcast radio signals or video signals that include the illumination control data with the image data.

53. The image processing system of claim 52, said transfer media comprising a storage medium, said storage medium comprising at least one of a dvd, cd, tape, computer memory or hard drive.

54. The system of claim 51, further comprising a multiplexer for time multiplexing the control data with the image data.

55. A display system, comprising:

a passive display,

a source of illumination to illuminate the passive display and cooperative with the passive display to present images, and

a storage medium providing an input signal including separately encoded illumination control data and image data, the illumination control data controlling optical characteristics of light from the source of illumination, and wherein the illumination control data is based on an evaluation of illumination of an input scene represented by an image for display, the evaluation occurring prior to storage of the illumination control data on the storage medium.

56. The system of claim 55, wherein the illumination control data is based on an evaluation of illumination of an input scene represented by several images for display, and wherein the passive display is operable to display a sequence of images, and wherein the several images include a number of images in the sequence of images preceding or following a given image for display.

57. An image processing system for preparing a signal that includes image data and control data for a passive display with an illuminating light source, the image processing system comprising:

an image obtaining device to provide image data representing input scenes,

an image processing apparatus configured to evaluate image data of input scenes, and to provide separately encoded display control data to be included with the image data in the signal, the separately encoded display control data including illumination control data to control the optical characteristics of an illumination source for a passive display.

58. A method of editing and encoding images represented by image data captured by an image recording device, where the captured images are composed of an assemblage of pixels for display or projection using a passive display to which input light is incident to provide images, comprising:

determining display control data to be used in the display to obtain a desired appearance of a displayed image including control data for a characteristic of the input light,

including the determined display control data with the image data, the display control data corresponding to the adjusted light characteristic, and

storing both the display control data and the image data for use subsequently to adjust the characteristic of input light to obtain a desired appearance of the image provided by a passive display with an illuminating light source.

59. The method of claim 58, further comprising visually viewing an image while determining the display control data to adjust a characteristic of the input light to obtain a desired appearance of the displayed image.

60. The method of claim 58, said adjusting comprising manually adjusting.

61. The method of claim 58, further comprising obtaining the illumination of a captured scene portrayed by an image, and including display control data to provide an image having illumination that is substantially the same as the captured scene.

62. The method of claim 61, said obtaining comprising at least one of obtaining an average value of the illumination of the captured scene, computing the illumination of the captured scene by obtaining a spatial distribution of light intensity over the area of the input scene, and obtaining illumination information from a number of images of respective scenes.

63. The method of claim 62, wherein the image is a given image in a sequence of images assembled to provide a motion picture effect, and wherein said obtaining illumination information from a number of images of respective scenes comprises obtaining such illumination information from a number of images in the sequence that precede or follow the given image in the sequence.

64. A display system comprising:

a passive display;

an illumination source to illuminate the passive display and cooperate with the passive display to display images; and

display circuitry operatively coupled to the passive display and the illumination source and configured to receive an input signal wherein the input signal includes separately encoded image data and illumination control data; and

wherein the display circuitry is configured to process the separately encoded illumination control data included in the input signal, and to control the level of the illumination source based on the separately encoded illumination control data.

65. The display system of claim 64, wherein the illumination source includes a red light source, a green light source and a blue light source, and the illumination control data includes color control data for controlling the source of illumination based on the color control data.

66. A display system comprising:

a passive display;

an illumination source to illuminate the passive display and cooperate with the passive display to display images; and

display circuitry operatively coupled to the passive display and the illumination source and configured to receive an input video signal indicative of an image to be displayed, wherein the input video signal includes separately encoded image data and display illumination control data; and

wherein the display circuitry includes decoding circuitry configured to decode and process the separately encoded display illumination control data within the input video signal and control the passive display and the illumination source based on the separately encoded display illumination control data.

67. A method of providing images to a passive display for display by the passive display, the method comprising:

storing separately encoded (i) image data representative of respective images and (ii) display control data, the display control data comprising illumination control data for use in controlling optical characteristics of incident light to the passive display and image control data for controlling processing of the image data by the passive display to control characteristics of displayed images; and

transmitting an input signal to the passive display, the input signal including the separately encoded image data and display control data.

68. The method of claim 67, wherein the image control data is configured to maximize shades of gray of displayed images.

69. The method of claim 67, wherein the image control data is configured to control gamma of the passive display.

70. The method of claim 67, wherein the image control data is configured to modify gamma of the passive display.