JPH0564073A - Image processing control system - Google Patents

Abstract

PURPOSE:To reduce the number of data memories storing image processing control data corresponding to the video signal of plural TV camera apparatuses. CONSTITUTION:The memory selecting parts 13 and 23 of processing blocks 10 and 20 generates memory selecting signals S1 and S2 specifying the corresponding data memory from information included in control information C1 and C2 to send them to a memory centralized control part 31, which allocates the data memories 41-4m in accordance with the memory selecting signals S1 and S2 to send allocating information W. Synthetic control signal generating part 12 and 22 generates synthetic control signals M1 and M2 based on control informations C1, C2 and allocating information W. Chromakey signal generating parts 11 and 21 image-processes the video signals V1-Vn in accordance with the synthetic control signals M1, M2 from the synthetic control signal generating parts 12, 22 and image processing control data K1-Km from the data memory 41-4m.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing control system, and more particularly to an image processing control system which performs image processing of an input video signal including video signals from a plurality of television camera devices by a plurality of processing blocks.

[0002]

2. Description of the Related Art A conventional image processing control system has a plurality of processing blocks 50 and 60, as shown in FIG. 2, and a plurality of video signals V1 to Vn according to control information C1 and C2.
Image processing of each. Here, among the n video signals V1 to Vn, m video signals (m ≦ n) are video signals from m television camera devices (not shown). Further, each of the processing blocks 50 and 60 has a plurality of video signals V1 to Vn.
Receiving the image processing, the chroma key signal generation units 51, 6
1 are provided respectively.

By the way, the output video signal of the television camera device has different color characteristics from device to device. For this reason, the image processing control data for controlling the chroma key signal generation units 51 and 61 needs to be set to the data suitable for the output video signal of the television camera device. Memories 501-50m, 6
It is stored in each of 01 to 60 m.

The chroma key signal generators 51 and 61 are composed control signals M1 and M2 designating a video signal to be processed, and image processing control data K11 to K1m and K21 to K2m from the data memories 501 to 50m and 601 to 60m.
Image processing is performed in accordance with each. The synthesis control signal generators 52 and 62 generate the synthesis control signal M from the control information C1 and C2.
1 and M2 are generated. The memory selection units 53 and 63 select the data memory corresponding to the corresponding TV camera device based on the information included in the control information C1 and C2.

[0005]

In the above-mentioned conventional image processing control system, since a plurality of processing blocks respectively perform image processing of video signals from a plurality of television camera devices, each processing block has a television camera. A plurality of data memories corresponding to the devices are provided respectively. For this reason, a large number of data memories are required for the entire system, and the configuration becomes complicated.

An object of the present invention is to provide an image processing control system which can simplify the configuration by sharing a data memory.

[0007]

An image processing control system according to the present invention is an image processing control system in which image processing of an input video signal including video signals from a plurality of television camera devices is performed by a plurality of processing blocks. A plurality of memories respectively storing image processing control data corresponding to respective video signals of the plurality of television camera devices,
Memory management means for allocating the plurality of memories in response to memory selection signals from the plurality of processing blocks. The plurality of processing blocks specify a means for receiving a control information inputted from the outside and a memory allocation information allocated by the memory management means to generate a composite control signal, and a corresponding memory according to the control information. It comprises a unit for generating the memory selection signal, and a unit for performing image processing of the input video signal according to the combination control signal and the image processing control data from the corresponding memory.

[0008]

The present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention and shows a case where two processing blocks 10 and 20 are provided. The number of processing blocks may be three or more. Here, as in the conventional case shown in FIG. 2, the processing blocks 10 and 20 respectively perform image processing of a plurality of video signals V1 to Vn according to the control information C1 and C2, but n
Of the video signals V1 to Vn, m video signals (m ≦ n) are video signals from m TV camera devices (not shown).

The chroma key signal generators 11 and 21 provided in the respective processing blocks 10 and 20 are composed control signals M1 and M2 from the composition control signal generators 12 and 22, and image processing control from the data memories 41 to 4m. Data K1-K
The image processing of each of the plurality of video signals V1 to Vn is performed under the control of m.

By the way, the data memories 41 to 4m storing the image processing control data corresponding to the video signal of the television camera device are shared by the processing blocks 10 and 20. For this reason, the memory centralized management unit 31 is provided to allocate the data memories 41 to 4m, and the allocation result of the data memory is sent to each processing block as allocation information W.

The synthesis control signal generators 12 and 22 generate a synthesis control signal M based on the control information C1 and C2 and the allocation information W.
1 and M2 are generated. In addition, the memory selection units 13 and 23
Based on the information included in the control information C1 and C2, the memory centralized management unit 3 outputs the memory selection signals S1 and S2 that specify the data memory corresponding to the video signal of the corresponding TV camera device.
Send to 1. The memory centralized management unit 31 receives the memory selection signals S1 and S2 from the memory selection units 13 and 23, allocates the data memories 41 to 4m, and sends allocation information W. The allocated data memory sends out the stored image processing control data. In this way, the processing blocks 10 and 20 share the data memories 41 to 4m.

[0013]

As described above, according to the present invention, each processing block can share a data memory by providing a memory centralized management unit for managing allocation of a plurality of data memories. It is not necessary to provide each with a data memory, and the data memory can be reduced and the configuration can be simplified.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram showing an example of a conventional image processing control system.

[Explanation of symbols]

 10, 20 Processing block 11, 21 Chroma key signal generation unit 12, 22 Composite control signal generation unit 13, 23 Memory selection unit 31 Memory centralized management unit 41-4m Data memory C1, C2 Control information K1-Km Image processing control data M1, M2 Composite control signal S1, S2 Memory selection signal W Allocation information

Claims (2)

[Claims] 1. An image processing control system for performing image processing of an input video signal including video signals from a plurality of television camera devices by a plurality of processing blocks, which corresponds to each video signal of the plurality of television camera devices. An image processing control system comprising: a plurality of memories that respectively store image processing control data; and a memory management unit that receives the memory selection signals from the plurality of processing blocks and allocates the plurality of memories. 2. The plurality of processing blocks receive control information input from the outside and memory allocation information allocated by the memory management means, and generate a combined control signal.
Means for generating the memory selection signal for designating a corresponding memory according to the control information, and image processing of the input video signal according to the composite control signal and the image processing control data from the corresponding memory The image processing control system according to claim 1, further comprising: