Server and a server system

• US 20040169759A1
• Filed: 11/26/2003
• Published: 09/02/2004
• Est. Priority Date: 11/27/2002
• Status: Abandoned Application

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Kikuchi, Kenichi
• Application Number:
  US10/721,775
• Publication Number:
  US 20040169759A1
• Time in Patent Office: Days
• US Class Current: 348/333.12
• CPC Class Codes: H04N 19/137 Motion inside a coding unit, e.g. average field, frame or block difference
• CPC Class Codes: H04N 19/16 for a given display mode, e.g. for interlaced or progressive display mode
• CPC Class Codes: H04N 19/30 using hierarchical techniques, e.g. scalability H04N19/63 takes precedence
• CPC Class Codes: H04N 19/59 involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution

Abstract

Displaying a subject image on a browser in accordance with the aspect ratio of the subject image, with reduced scan line interference at a time exposure, as well as transmitting a high-quality image with easy compression processing.

A server according to the invention compresses, in a predetermined operating state, only a image signal in either a first or second field and transmits the-resulting signal to a browser in a network terminal. This reduces scan line interference thus upgrading for example the picture quality obtained at a time exposure. In response to an access from the browser in the network terminal, the server transmits to the browser the information containing link information for image data and an image information display size instruction described in a markup language so as to match the aspect ratio of the displayed image with that of the subject image.

Claims

1. A server, connected to a network terminal via a network, comprising:

a camera section, which photographs a subject image by a image-pickup means of the interlaced scan system and output image signals in a first field and a second field; and

a image signal compressor, which compresses the image signals output from the camera section,

wherein, in the predetermined operating state, the image signal compressor compresses only a image signal in either the first field or second field and the server transmits the compressed signal to the network terminal.

2. The server according to claim 1,

wherein the server transmits the information containing link information for image data and an image information display size instruction described in a markup language to the network terminal, in order to display a web page on a browser in the network terminal,

in case where a request for transmitting the image data is received from the network terminal in accordance with the information,

the server compresses, in a predetermined operating state, a image signal in either the first field or second field on the image signal compressor, and

the server, except in the predetermined operating state, synthesizes and compresses image signals in the first filed and second field on the image signal compressor, and

the server transmits the compressed signal to the network terminal.

3. The server according to claim 2, wherein the image information size display instruction is to make the image signal displayed at the same aspect ratio as that of a subject image.

4. The server according to claim 1, wherein the predetermined operating state is an imaging state by the camera section with long time exposure.

5. The server according to claim 1, wherein the predetermined operating state is a state of panning or tiling operation of the camera section.

11. The server according to claim 3, wherein the image information display size instruction to display image information at the same aspect ratio as that of a subject image is an image information display size instruction to display image information at the same aspect ratio as that of the imaging area of an image pickup device.

12. The server according to claim 2, wherein the markup language is HTML.

6. A server comprising:

a camera section, which photographs a subject image by a image-pickup means of the interlaced scan system and outputs image signals in a first field and a second field;

a image signal compressor, which compresses the image signals output from the camera section;

a network interface, which transmits image data compressed by the image signal compressor to a network; and

a controller, which controls the camera section and the image signal compressor;

wherein the server is equipped with communicator, which transmits the information containing link information for image data and an image information display size instruction described in a markup language in order to display a web page on a browser in a network terminal; and

in case where a request for transmitting the image data is received from the network terminal in accordance with the link information,

the server transmits, in a predetermined operating state, a image signal in either the first field or second field.

7. The server according to claim 6, wherein the image information display size instruction is an instruction to display image information at the same aspect ratio as that of a subject image.

8. The server according to claim 6, the server comprising mode switch, wherein the mode switch makes mode switch over between a first mode where image signals in the first field and second field are synthesized and compressed as a frame signal before the resulting signal is output and a second mode where only a image signal in the first field and second field is compressed before the resulting signal is output.

9. The server according to claim 8, wherein in case where the mode switch has switched from a normal exposure to a long time exposure, the server switches from the first mode to the second mode.

10. The server according to claim 7, wherein, in case where the mode switch controls the position of the camera section, the server switches from the first mode to the second mode.

13. The server according to claim 6, wherein the camera section for photographing a subject image by way of imaging means of the interlaced scan system and outputting image signals in a first field and a second field is replaced with a camera section for photographing a subject image by way of imaging means of the interlaced scan system and outputting a image signal in either a first field or a second field.

14. A server system comprising a server according to claim 6,

wherein the network terminal receives a web page transmitted from the server and regenerates image data at the same aspect ratio as that of a subject image.

15. A method for transmitting a camera image via a network and displaying the camera image, comprising the steps of:

photographing a subject image by image pickup-means of the interlaced scan system;

transmitting the image information of a subject image to a network terminal;

transmitting a file which describes in a markup language a display size instruction to display image information at the same aspect ratio as that of the subject image;

transmitting partially a field information among the image information in order to display the subject image on the network terminal.