JP2012011123A5

JP2012011123A5 -

Info

Publication number: JP2012011123A5
Application number: JP2010152991A
Authority: JP
Filing date: 2010-07-05
Publication date: 2013-07-25
Anticipated expiration: 2030-07-05

Claims

An electronic endoscope apparatus comprising a distal end portion, a main body portion, and a transmission portion that connects the distal end portion and the main body portion so as to communicate with each other
An imaging unit that is provided at the tip and that captures an image of the subject to generate an image signal;
An A / D converter that is provided at the tip and generates image data by quantizing the image signal;
An encoding unit that is provided at the front end and generates encoded data by encoding the image data using an error correction code;
A decoding unit that is provided in the main body and corrects a transmission error of the image data by decoding the encoded data;
An image processing unit which is provided in the main body unit and corrects transmission errors remaining in the image data after correction by the decoding unit;
An electronic endoscope apparatus comprising:

The decoding unit generates error pixel position information indicating a position of a pixel included in the image data in which a transmission error cannot be corrected,
The electronic endoscope apparatus according to claim 1, wherein the image processing unit interpolates data of the pixel specified by the error pixel position information by image interpolation.

The electronic processing unit according to claim 2, wherein the image processing unit replaces the data of the pixel specified by the error pixel position information with a value calculated based on values of pixels around the pixel. Endoscopic device.

Provided in the main body, having a determination unit that determines the type of the tip, and generates determination information that uniquely identifies the type of the tip.
The encoding unit generates the encoded data using an error correction code determined for each type of the tip,
The decoding unit identifies the error correction code used in the encoding unit provided at the front end based on the type of the front end determined by the determination unit, and determines the error correction code The electronic endoscope apparatus according to claim 1 , wherein the encoded data is decoded using the electronic endoscope apparatus.

A puncture unit provided at the front end portion for reducing the encoded data length by thinning out a part of the encoded data;
A code interpolation unit that is provided in the main body unit and adds a signal to a portion thinned out by the puncture unit to restore the encoded data length;
The electronic endoscope apparatus according to claim 1 , further comprising:

A mode selection unit that is provided in the main body unit and outputs a mode selection signal that sets the number of bits of the encoded data to be thinned out by the puncture unit;
The electronic endoscope apparatus according to claim 5, wherein the puncturing unit thins out data of the number of bits specified by the mode selection signal from the encoded data.

A puncture unit that is provided at the front end and thins out the encoded data length by thinning out data at positions determined for each type of the front end from the encoded data;
A discriminator provided in the main body, discriminating the type of the tip, and generating discriminating information for uniquely identifying the type of the tip;
Based on the type of the tip portion that is provided in the main body portion and is discriminated by the discriminating portion, the puncture portion provided in the tip portion specifies a position where the data is thinned out, and a signal is added to the specified position. A code interpolation unit for restoring the encoded data length,
The electronic endoscope apparatus according to claim 1 , further comprising:

An electronic endoscope device comprising a tip portion and a main body portion,
An imaging unit that is provided at the tip and that captures an image of the subject to generate an image signal;
An A / D converter that is provided at the tip and generates image data by quantizing the image signal;
An encoding unit that is provided at the front end and generates encoded data by encoding the image data using an error correction code;
A transmission unit provided at the tip, and transmitting the encoded data to the main body;
A receiver that is provided in the main body and receives the encoded data transmitted from the tip;
A decoding unit that is provided in the main body and corrects a transmission error of the image data by decoding the encoded data;
An image processing unit which is provided in the main body unit and corrects transmission errors remaining in the image data after correction by the decoding unit;
An electronic endoscope apparatus comprising:

The electronic endoscope apparatus according to claim 8, wherein the transmission unit and the reception unit perform data transmission using wireless communication.

The electronic endoscope apparatus according to claim 2 , wherein the error correction code used in the encoding unit and the decoding unit is an error correction code that is encoded and decoded for each pixel.

The imaging unit includes an electronic endoscope apparatus according to claim 1 0, characterized in that a single-plate color image sensor having a primary color filter or a complementary color filter.

The electronic endoscope apparatus according to claim 1 , wherein the image processing unit generates color image data based on the decoded image data.