Apparatus, method and program for compressing information

An information compression apparatus which compresses information and uses a DCT frequency conversion algorithm, comprising:

• a plurality of block register means for storing block based multi-bit quantized data converted from the information output from an quantization execution module means;
• a correction level register means for presetting a correction level indicating a degree of data correction;
• a first control means for controlling so as to perform a scanning operation for scanning each block of the plurality of block register means and a search operation for searching a block having a valid coefficient;
• and
• a data correction means for correcting data to modify the valid coefficient of the block searched by the first control means to an invalid coefficient based on the correction level started in the correction level register means.

An information compression method for compressing information and using a DCT frequency conversion algorithm, comprising the steps of:

• presetting a predetermined correction level indicating a degree of data correction;
• latching quantized data including valid coefficients and invalid coefficients into a block register;
• performing an inverse zigzag scan for scanning the block register to search a valid coefficient;
• modifying an initially searched valid coefficient to an invalid coefficient;
• counting a number of searched valid coefficients;
• modifying a subsequent searched valid coefficient to the invalid coefficient;
• incrementing the number of valid coefficients by one;
• continuously performing the inverse zigzag scan when the number of searched coefficients counted in the counting step is smaller than the collection level in the presetting step;
• and
• transferring the data of the block register to a coding module when the correction counter value reaches the correction level.

A program of an information compression causing a computer to execute an information compression operation using a DCT frequency conversion algorithm according to a method comprising the steps of:

• presetting a predetermined correction level indicating a degree of data correction;
• latching quantized data including valid coefficients and invalid coefficients into a block register;
• performing an inverse zigzag scan for scanning the block register to search a valid coefficient;
• modifying an initially searched valid coefficient to an invalid coefficient;
• counting a number of searched valid coefficients;
• modifying a subsequent searched valid coefficient to the invalid coefficient;
• continuously performing the inverse zigzag scan when the number of searched coefficients counted in the counting step is smaller than the collection level in the presetting step;
• and
• transferring the data of the block register to a coding module when the correction counter value reaches the correction level.

A program of an information compression causing a computer using a JPEG coding method to execute an information compression operation according to a method comprising the steps of:

• presetting a predetermined correction level indicating a degree of data correction;
• latching quantized data including valid coefficients and invalid coefficients into a block register;
• performing an inverse zigzag scan for scanning the block register to search a valid coefficient;
• modifying an initially searched valid coefficient to an invalid coefficient;
• counting a number of searched valid coefficients;
• modifying a subsequent searched valid coefficient to;
• the invalid coefficient;
• incrementing the number of valid coefficients by one;
• continuously performing the inverse zigzag scan when the number of searched coefficients counted in the counting step is smaller than the collection level in the presetting step;
• and
• transferring the data of the block register to a coding module when the correction counter value reaches the correction level.

A program of an information compression causing a computer using a sound data coding method to execute an information compression operation according to a method comprising the steps off:

• presetting a predetermined correction level indicating a degree of data correction;
• latching quantized data including valid coefficients and invalid coefficients into a block register;
• performing an inverse zigzag scan for scanning the block register to search a valid coefficient;
• modifying an initially searched valid coefficient to an invalid coefficient;
• counting a number of searched valid coefficients;
• modifying a subsequent searched valid coefficient to the invalid coefficient;
• incrementing the number of valid coefficients by one;
• continuously performing the inverse zigzag scan when the number of searched coefficients counted in the counting step is smaller than the collection level in the presetting step;
• and
• transferring the data of the block register to a coding module when the correction counter value reaches the correction level.

A computer-readable media storing a program of an information compression causing a computer to execute an information compression operation using a DCT frequency conversion algorithm according to a method comprising the steps of:

• presetting a predetermined correction level indicating a degree of data correction;
• latching quantized data including valid coefficients and invalid coefficients into a block register;
• performing an inverse zigzag scan for scanning the block register to search a valid coefficient;
• modifying an initially search valid coefficient to an invalid coefficient;
• counting a number of searched valid coefficients;
• modifying a subsequent searched valid coefficient to the invalid coefficient;
• incrementing the number of valid coefficients by one;
• continuously performing the inverse zigzag scan when the number of searched coefficients counted in the counting step is smaller than the collection level in the presetting step;
• and
• transferring the data of the block register to a coding module when the correction counter value reaches the correction level.